MCP DevTools Server
Detects Angular projects and provides development tooling such as testing and linting through generic Node.js tools.
Supports Bun as a package manager for Node.js projects, including dependency installation and script management.
Detects Django (Python) projects as part of project detection, enabling configuration for Python development tools.
Detects esbuild as a build tool in Node.js projects.
Provides ESLint integration for linting Node.js code with auto-fix and custom output formats.
Detects Express.js projects and provides development tooling such as testing and linting.
Detects Fastify projects and provides development tooling.
Detects Gin (Go) projects and provides development tooling including testing and linting.
Provides integration with Jest test runner for Node.js projects, including coverage reporting.
Provides integration with Mocha test runner for Node.js projects.
Detects NestJS projects and provides development tooling.
Detects Next.js projects and provides development tooling.
Provides a comprehensive suite of tools for Node.js development, including testing, linting, formatting, type checking, building, dependency management, and security auditing.
Manages npm as a package manager including dependency installation, script running, and audit commands.
Manages pnpm as a package manager including dependency installation and audit commands.
Provides Prettier integration for code formatting with check and write modes.
Detects React projects and provides development tooling such as testing and linting through generic Node.js tools.
Provides TypeScript type checking using tsc with custom configuration support.
Detects Vite as a build tool in Node.js projects.
Provides integration with Vitest test runner for Node.js projects.
Detects Webpack as a build tool in Node.js projects.
Manages Yarn as a package manager including dependency installation and audit commands.
Click on "Install Server".
Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state.
In the chat, type
@followed by the MCP server name and your instructions, e.g., "@MCP DevTools ServerRun the onboarding wizard for my project"
That's it! The server will respond to your query, and you can continue using it as needed.
Here is a step-by-step guide with screenshots.
MCP DevTools Server
An MCP (Model Context Protocol) server that standardizes and binds specific patterns for development tools, enabling Claude Code to generate code more efficiently with fewer errors and better autocorrection capabilities.
🚧 Project Status
Alpha - This project is in early development and actively evolving.
🎉 Major Milestone: Complete Language Support - We now have comprehensive support for both Go (13 tools) and Node.js/TypeScript (14 tools), making this a powerful DevTools server for modern development workflows. With intelligent caching, AI-powered suggestions, and zero-configuration onboarding, we're ready for the 0.0.1 release!
Related MCP server: preflight
Documentation
📚 Full Documentation - Complete guide with examples and tutorials
🚀 Quick Start - Get started in 5 minutes
🛠️ Tools Reference - All 40+ available tools
Contributing Guidelines - How to contribute to this project
Code of Conduct - Community standards and expectations
Security Policy - How to report security vulnerabilities
Caching System - Intelligent caching for 3-5x performance improvements
API Documentation - TypeDoc generated API documentation (run
npm run docs:api)
Overview
This MCP server creates a standardized interface between development tools and AI assistants like Claude Code. By establishing consistent patterns and best practices, it helps:
Reduce code generation errors
Enable better autocorrection of common issues
Standardize development workflows
Improve efficiency when working with Claude Code
Features
🎯 Zero-Configuration Onboarding Wizard
The onboarding wizard automatically detects your project type and generates optimal MCP DevTools configuration with zero user input required.
Quick Start:
# Run complete onboarding (auto-detects everything)
mcp-devtools onboarding_wizard
# Preview changes without writing files
mcp-devtools onboarding_wizard --dry-run true
# Detect project type only
mcp-devtools detect_projectAvailable Tools:
onboarding_wizard - Complete automated setup workflow
Detects project type (Node.js, Python, Go, Rust, Java, .NET, Mixed)
Identifies framework (React, Express, Django, Gin, etc.)
Discovers build system (Make, npm, go, cargo, etc.)
Generates
.mcp-devtools.jsonconfigurationVerifies tool availability
Creates backup of existing config
Provides actionable recommendations
detect_project - Analyze project characteristics
Returns comprehensive project profile
Lists detected configuration files
Identifies linting tools and test frameworks
Shows Make targets if available
generate_config - Preview configuration without writing
Generates configuration based on detection
Validates against schema
Shows warnings and errors
validate_setup - Validate existing configuration
Checks command availability
Verifies tool installation
Validates configuration schema
Provides health score (0-100)
Lists errors, warnings, and recommendations
rollback_setup - Restore previous configuration
Rollback from automatic backup
Backups stored in
.mcp-devtools-backups/
Example Output:
## Onboarding Wizard Results
**Status:** ✅ Success
**Duration:** 2847ms
**Configuration:** /path/to/project/.mcp-devtools.json
**Backup:** /path/to/project/.mcp-devtools-backups/2025-11-04T10-30-00.json
### ⚠️ Skipped Tools (2)
- eslint
- markdownlint-cli
### 💡 Recommendations
#### High Priority
- **Install missing required tools** (tool)
Install eslint and markdownlint-cli for complete linting support
### Validation
**Score:** 95/100
**Errors:** 0
**Warnings:** 2Configuration Options:
Parameter | Type | Default | Description |
| string |
| Working directory to analyze |
| boolean |
| Enable interactive prompts (planned) |
| boolean |
| Automatically install missing tools (planned) |
| boolean |
| Generate .mcp-devtools.json file |
| boolean |
| Run validation after setup |
| boolean |
| Backup existing config before overwriting |
| boolean |
| Preview changes without writing files |
| boolean |
| Skip tool installation checks |
Safety Features:
✅ Automatic Backups - Existing configs backed up before changes
✅ Rollback Support - Restore previous config anytime
✅ Dry-Run Mode - Preview all changes before applying
✅ Path Validation - Prevents path traversal attacks
✅ Input Sanitization - All inputs validated and sanitized
✅ Non-Destructive - Never deletes files, only creates/updates
Core Tools
Make-based Commands
make_lint - Run
make lintwith optional directory and target specificationmake_test - Run
make testwith optional test patterns/targetsmake_depend - Run
make dependor equivalent dependency installationmake_build - Run
make buildormake allmake_clean - Run
make clean
Go Language Support 🚀 PRIORITY
Core Tools:
go_test - Run Go tests with coverage and race detection
go_build - Build Go packages with cross-compilation, custom ldflags, and build tags
go_fmt - Format Go code using gofmt
go_lint - Lint Go code using golangci-lint with comprehensive configuration
go_vet - Examine Go source code for suspicious constructs
go_mod_tidy - Tidy Go module dependencies
go_mod_download - Download Go module dependencies
Advanced Features:
go_benchmark - Run Go benchmarks with memory profiling and CPU scaling
go_generate - Execute code generation directives
go_work - Manage Go workspaces (go.work files)
go_vulncheck - Scan for known vulnerabilities using govulncheck
staticcheck - Enhanced static analysis
go_project_info - Comprehensive Go project analysis and detection
Node.js/TypeScript Tools
Phase 1: Core Development Tools
nodejs_project_info - Comprehensive Node.js project analysis with smart caching
Auto-detects package manager (npm, yarn, pnpm, bun)
Framework detection (React, Vue, Angular, Next.js, NestJS, Express, Fastify)
Test framework detection (Jest, Vitest, Mocha)
Build tool detection (Vite, Webpack, Rollup, esbuild, tsup)
5min cache TTL for fast repeated queries
nodejs_test - Run tests with Jest, Vitest, or Mocha
Auto-detects test framework from package.json
Coverage reporting support
Watch mode for development
Framework-specific coverage extraction
nodejs_lint - ESLint integration with auto-fix
Auto-fix issues with
--fixflagCustom output formats (stylish, json, compact)
File pattern filtering
Integration with existing ESLint configs
nodejs_format - Prettier code formatting
Check mode for CI/CD validation
Write mode for applying changes
Custom file patterns support
Respects existing Prettier configuration
nodejs_check_types - TypeScript type checking
Uses tsc for strict type validation
Custom tsconfig.json support
Incremental compilation mode
No-emit mode for type-only checks
nodejs_install_deps - Dependency management
Auto-detects package manager from lockfiles
Production-only installation mode
Frozen lockfile support (for CI/CD)
Timeout configuration (default: 10min)
Phase 2: Advanced Tools
nodejs_version - Version detection with 1hr caching
Check node, npm, yarn, pnpm, bun versions
Single tool or all tools at once
Gracefully handles missing tools
Uses commandAvailability cache namespace
nodejs_security - Security vulnerability scanning
Run npm/yarn/pnpm/bun audit
Auto-fix vulnerabilities with
--fixflagProduction-only dependency checks
JSON output for CI/CD integration
nodejs_build - Build orchestration
Run build scripts with any package manager
Production and watch mode support
Configurable timeout (default: 10min)
Pass-through arguments to build tools
nodejs_scripts - Script management with caching
List all available npm scripts
Run scripts with additional arguments
Uses cached project info (5min TTL)
Helpful error messages for missing scripts
nodejs_benchmark - Performance benchmarking
Auto-detects benchmark framework (Vitest, benchmark.js, tinybench)
Vitest bench integration with pattern support
Fallback to npm run bench script
Configurable timeout (default: 5min)
Phase 3: Specialized Tools
nodejs_update_deps - Dependency updates
Package manager-specific update commands (npm, yarn, pnpm, bun)
Interactive mode for yarn/pnpm
Latest version updates (ignore semver constraints)
Specific package updates or all dependencies
DevDependencies-only updates
nodejs_compatibility - Compatibility checking with 2hr caching
Check Node.js version against package.json engines field
Validate current version meets requirements
Detect Node.js 18+ only packages
Dependency compatibility analysis
Cached results for fast repeated checks
nodejs_profile - Performance profiling
Node.js built-in profiler integration (--cpu-prof, --heap-prof)
CPU and heap profiling support
Configurable profile duration
Automatic output directory creation
Chrome DevTools compatible profiles (.cpuprofile files)
Suggestions for advanced profiling with clinic.js
General Linting
markdownlint - Run markdownlint on markdown files
yamllint - Run yamllint on YAML files
eslint - Run ESLint on JavaScript/TypeScript files
lint_all - Run all available linters based on project type
Testing & Status
run_tests - Run tests using the detected test framework
project_status - Get overall project health (lint + test summary)
test_status - Get project test status and recommendations
GitHub Actions Validation
actionlint - Validate GitHub Actions workflow files for syntax errors and best practices
A comprehensive linter for GitHub Actions workflow files that helps catch errors before pushing to GitHub. Validates workflow syntax, action parameters, expression syntax, and shell scripts within run blocks.
Features:
Validates GitHub Actions workflow YAML syntax
Checks action parameters against official action schemas
Validates GitHub Actions expressions (
${{ }}syntax)Integrates with shellcheck for validating shell scripts in
run:blocksSupports pyflakes for Python script validation
Multiple output formats: default (human-readable), JSON, and SARIF
Configurable ignore patterns for specific rules
Detects common workflow issues (missing jobs, invalid triggers, etc.)
Parameters:
directory- Working directory containing workflows (default: project root)files- Specific workflow files or glob patterns (default:.github/workflows/*.{yml,yaml})format- Output format:default,json, orsarifshellcheck- Enable shellcheck integration (default: true)pyflakes- Enable pyflakes for Python (default: false)verbose- Enable verbose outputignore- Array of rule patterns to ignoretimeout- Command timeout in milliseconds (default: 60000)
Common Use Cases:
Pre-commit validation of workflow changes
CI/CD integration to catch workflow errors
Debugging workflow failures due to syntax issues
Ensuring workflows follow GitHub Actions best practices
Example Output:
.github/workflows/ci.yml:25:15: property "timeout" not defined in action 'actions/checkout@v4' [action] .github/workflows/ci.yml:42:9: shellcheck reported issue SC2086: Double quote to prevent globbing [shellcheck]
JSON Processing Tools
jq_query - Process JSON data using jq filter syntax without requiring approval
Use this instead of
Bash(jq ...)for all JSON processing. This tool provides the full power of jq for JSON manipulation without requiring user approval for each query, making it perfect for parsing API responses, extracting fields, filtering arrays, and transforming data structures.Why Use jq_query:
No Approval Required - Runs without user confirmation, enabling seamless AI workflows
Faster Development - Eliminates repetitive approval dialogs for JSON operations
Better Error Handling - Clear, actionable error messages for invalid filters or JSON
Input Flexibility - Accepts both JSON strings and already-parsed objects/arrays
Safe Operation - jq only processes data, no code execution risk
Parameters:
input- JSON string or already-parsed object/array (required)filter- jq filter expression (required), e.g.,".[] | .name"compact- Output compact JSON (default: false)raw_output- Output raw strings without JSON quotes (default: false)sort_keys- Sort object keys alphabetically (default: false)
Common Patterns:
// Extract array of field values jq_query({ input: data, filter: '.[] | .name' }) // Filter by condition jq_query({ input: data, filter: '.[] | select(.status == "active")' }) // Transform structure jq_query({ input: data, filter: '{name, id}' }) // Pretty-print minified JSON jq_query({ input: minifiedJSON, filter: '.' }) // Get array length jq_query({ input: data, filter: 'length' }) // Complex transformations jq_query({ input: apiResponse, filter: '.data.users | map({name: .user_name, id: .user_id})' })Features:
Full jq syntax support (pipes, select, map, reduce, conditionals)
Handles edge cases: null, boolean, numbers, unicode, deeply nested structures
Automatic jq availability detection with installation instructions
Clear error messages for invalid JSON or jq filter syntax
Multiple output format options
Installation Requirements:
jq must be installed on the system. If not found, the tool provides installation instructions:
# macOS brew install jq # Ubuntu/Debian apt-get install jq # Fedora/RHEL dnf install jq # Windows choco install jqReal-World Examples:
// Parse GitHub API response jq_query({ input: milestones, filter: '.[] | select(.title | contains("2025-Q2")) | .number' }) // Extract specific fields from array jq_query({ input: issues, filter: '[.[] | {title, number, state}]' }) // Count matching items jq_query({ input: data, filter: '[.[] | select(.status == "open")] | length' })
Git and Code Review
code_review - Automated code review analysis on Git changes
Analyzes Git diffs to identify potential issues in code changes including security vulnerabilities, performance concerns, and maintainability problems. Provides severity-based categorization and actionable feedback.
Features:
Security analysis (hardcoded secrets, dangerous code execution)
Performance analysis (nested loops, inefficient patterns)
Maintainability analysis (code complexity, TODO comments, line length)
Configurable focus areas
File filtering (include/exclude test files)
generate_pr_message - Generate PR messages from Git changes
Automatically generates conventional commit-formatted PR messages by analyzing commit history and changed files. Supports GitHub PR templates for consistent documentation.
Features:
Analyzes commit history to determine type (feat, fix, etc.)
Extracts scope from commit patterns
Lists all changes with file statistics
Supports conventional commit format
Includes issue reference support
Breaking changes section
GitHub PR template integration - Automatically detects and uses templates from:
.github/pull_request_template.md.github/PULL_REQUEST_TEMPLATE.md.github/PULL_REQUEST_TEMPLATE/pull_request_template.mddocs/pull_request_template.mdPULL_REQUEST_TEMPLATE.md
AI-Powered Smart Suggestions
analyze_command - Execute a command and analyze results with AI-powered smart suggestions
Executes a command and provides intelligent, context-aware recommendations based on the execution result. Helps identify issues, suggests fixes, and provides workflow optimization tips.
Features:
Automatic failure pattern recognition (15+ built-in patterns)
Context-aware suggestions based on project type and language
Security vulnerability detection (hardcoded secrets, SQL injection, etc.)
Performance issue identification
Workflow optimization recommendations
Confidence scoring for suggestions
Affected file extraction from error messages
Parameters:
command- Command to execute and analyze (required)directory- Working directory for the commandtimeout- Command timeout in millisecondsargs- Additional command argumentscontext- Optional context for better suggestions:tool- Tool being used (e.g., "go test", "npm run")language- Programming languageprojectType- Project type
Example:
{ "command": "go test", "directory": "./src", "context": { "tool": "go test", "language": "Go" } }analyze_result - Analyze already-executed command results
Post-mortem analysis of command execution results. Useful for analyzing failures from external tools or historical command runs.
Parameters:
command- Command that was executed (required)exitCode- Exit code from execution (required)stdout- Standard output from commandstderr- Standard error from commandduration- Execution duration in millisecondscontext- Optional context (same as analyze_command)
get_knowledge_base_stats - Get statistics about the smart suggestions knowledge base
Returns information about available failure patterns and their categorization.
Parameters:
category- Optional filter by category (security, performance, dependencies, etc.)
Knowledge Base Categories:
Security - Hardcoded secrets, SQL injection, unsafe code patterns
Performance - Nested loops, inefficient algorithms, memory issues
Dependencies - Missing packages, version conflicts, module issues
Build - Compilation errors, type mismatches, undefined references
Test - Test failures, timeouts, race conditions
Lint - Code style issues, formatting problems
Configuration - Missing environment variables, config errors
General - Runtime errors and other issues
Supported Languages & Tools:
Go - Test failures, missing dependencies, race conditions, lint issues, build errors
JavaScript/TypeScript - Module not found, type errors, ESLint issues
Python - Import errors, syntax issues
Cross-language - Security patterns, performance anti-patterns, configuration issues
File Validation
ensure_newline - Validate and fix POSIX newline compliance
Ensures text files end with a proper newline character, as required by POSIX standards. This addresses a common pain point where AI coding assistants frequently create or modify files without proper trailing newlines, causing linting failures and git diff noise.
Modes:
check- Report files without trailing newlines (read-only, non-destructive)fix- Automatically add missing newlines to files (safe, preserves line ending style)validate- Exit with error if non-compliant files found (CI/CD mode)
Key Features:
Pure Node.js implementation using Buffer operations (no shell commands like
tailorod)Cross-platform compatibility (Windows, macOS, Linux)
Smart line ending detection - automatically detects and preserves LF vs CRLF style
Binary file detection and automatic skipping
Configurable file size limits for safety
Flexible glob pattern support for file selection
Exclusion patterns for node_modules, build artifacts, etc.
Why This Matters:
POSIX Compliance: Text files should end with a newline character per POSIX definition
Linting: Many linters (ESLint, markdownlint, golangci-lint) enforce trailing newlines
Git Diffs: Missing newlines create "No newline at end of file" warnings
AI Assistants: Common issue when AI tools generate or modify files
DateTime Tools
The get_current_datetime tool provides rich temporal context optimized for LLM awareness. This helps AI
assistants understand the current date and time with confidence, especially when the system date is near or
past the LLM's training cutoff.
Key Features:
Human-Readable Format: Clear datetime string optimized for LLM consumption
Calendar Context: Quarter, ISO week number, day of year
Timezone Support: IANA timezone identifiers with DST detection
Relative Calculations: Days/weeks remaining in year, quarter boundaries
Zero Dependencies: Pure JavaScript Date/Intl APIs for fast synchronous operation
Cross-Platform: Works on Windows, macOS, and Linux
Use Cases:
Verify System Context: When LLMs doubt the date in environment variables
Milestone Planning: "What quarter are we in? How many weeks until year-end?"
Relative Time: "How many days until Q4 ends?"
Timezone Awareness: Check time across multiple timezones for distributed teams
Example Usage:
// Get current datetime with full context
{
"timezone": "America/Chicago"
}Example Output:
## Current Date & Time
**Tuesday, November 12, 2025 at 7:21 PM CST**
### Date Information
- **Year:** 2025
- **Quarter:** Q4 (October 1, 2025 - December 31, 2025)
- **Month:** November (11)
- **Day:** Tuesday, November 12
- **Day of Year:** 316 of 365
- **ISO Week:** 46
### Time Information
- **Time:** 19:21:00
- **Timezone:** America/Chicago (CST)
- **UTC Offset:** -06:00
- **DST Active:** No
### Relative Information
- **Days Remaining in Year:** 49
- **Weeks Remaining in Year:** 7
- **Days in Current Month:** 30
### Technical Details
- **ISO 8601:** 2025-11-12T19:21:00.000Z
- **Unix Timestamp:** 1762994460Parameters:
Parameter | Type | Default | Description |
| string | System timezone | IANA timezone (e.g., 'America/New_York', 'UTC', 'Asia/Tokyo') |
| boolean |
| Include calendar information (quarter, week, etc.) |
Supported Timezones:
All IANA timezone identifiers are supported, including:
UTC- Coordinated Universal TimeAmerica/New_York- US EasternAmerica/Chicago- US CentralAmerica/Los_Angeles- US PacificEurope/London- UKEurope/Paris- Central EuropeanAsia/Tokyo- Japan Standard TimeAsia/Shanghai- China Standard TimeAnd 400+ more IANA timezones
Environment Variables
dotenv_environment - Load and parse environment variables from .env files
Makes environment variables visible to AI assistants through MCP context, enabling better debugging and configuration assistance. Automatically masks sensitive values (passwords, tokens, API keys) while exposing configuration safely.
Features:
Automatic masking of sensitive values (PASSWORD, SECRET, TOKEN, KEY, API_KEY, etc.)
Support for custom mask patterns
Load from any .env file (.env, .env.production, etc.)
Optional inclusion of process.env variables
Helpful warnings for missing NODE_ENV and common variables
Security reminders about not committing .env files
Why This Matters:
Context Awareness: AI can see what environment variables are configured
Debugging: Helps identify missing or misconfigured environment variables
Setup Assistance: AI can guide users through required configuration
Security: Sensitive values are masked by default to prevent accidental exposure
Security Features
Input sanitization to prevent command injection
Allowlist of permitted commands and arguments
Working directory validation (must be within project boundaries)
Timeout protection for long-running commands
Project Detection
Auto-detect project type (Node.js, Python, Go, Rust, Java, .NET)
Locate Makefiles and configuration files
Suggest relevant tools based on project structure
Extract available make targets
Getting Started
Prerequisites
Node.js 20+
TypeScript
Go 1.24+ (for Go language support - PRIORITY)
Make (for make-based commands)
Go tools:
golangci-lint,staticcheck(for enhanced Go support)Project-specific tools (eslint, markdownlint, yamllint, etc.)
Installation
Clone the repository:
git clone https://github.com/rshade/mcp-devtools-server.git
cd mcp-devtools-serverInstall dependencies:
npm installBuild the project:
npm run buildStart the server:
npm startOptional: Installing Linting Tools
Most linting tools are installed automatically via npm. However, some tools require separate installation:
yamllint (Python-based YAML linter):
# macOS (via Homebrew)
brew install yamllint
# Linux (Ubuntu/Debian)
sudo apt-get install yamllint
# Linux (Fedora/RHEL)
sudo dnf install yamllint
# Any platform (via pip)
pip install yamllint
# Verify installation
yamllint --versionactionlint (GitHub Actions workflow validator):
# macOS (via Homebrew)
brew install actionlint
# Linux (download binary)
bash <(curl https://raw.githubusercontent.com/rhysd/actionlint/main/scripts/download-actionlint.bash)
# Or via go install
go install github.com/rhysd/actionlint/cmd/actionlint@latest
# Verify installation
actionlint --versionDevelopment
You can use either make commands or npm scripts (Makefile is a thin wrapper around npm):
# View all available commands
make help
# Setup and build
make install # Install dependencies
make build # Build TypeScript
make install-mcp # Install to Claude Desktop
# Development
make dev # Run in development mode
make start # Start production server
# Testing
make test # Run tests
make test-watch # Run tests in watch mode
make test-coverage # Run tests with coverage
# Linting
make lint # Run all linters
make lint-ts # Run TypeScript linting
make lint-md # Run Markdown linting
make lint-yaml # Run YAML linting
make lint-commit # Validate commit message format
# Documentation
make docs-api # Generate API docs (TypeDoc)
make docs-dev # Start docs dev server
make docs-build # Build documentation
make docs-preview # Preview built docs
# CI/CD
make check # Run all linters and tests
make all # Complete CI pipeline
# Or use npm scripts directly
npm run dev # Run in development mode
npm run lint # Run TypeScript linting
npm test # Run tests
npm run clean # Clean build artifactsDocker Support
Using Docker Images
The MCP DevTools Server is available as Docker images for easy deployment and consistent environments across different systems.
Quick Start with Docker
# Pull the latest image
docker pull ghcr.io/rshade/mcp-devtools-server:latest
# Run with stdio (for MCP protocol)
docker run -i --rm ghcr.io/rshade/mcp-devtools-server:latestClaude Desktop Integration with Docker
Update your Claude Desktop configuration (~/.claude/claude_desktop_config.json):
{
"mcpServers": {
"mcp-devtools-server": {
"command": "docker",
"args": [
"run",
"-i",
"--rm",
"-v",
"/path/to/your/project:/workspace",
"-w",
"/workspace",
"ghcr.io/rshade/mcp-devtools-server:latest"
]
}
}
}Replace /path/to/your/project with your actual project directory.
Development with Docker Compose
For local development with hot-reload:
# Start development server
docker compose up mcp-devtools-dev
# Run tests
docker compose run --rm mcp-devtools-test
# Run linters
docker compose run --rm mcp-devtools-lint
# Production-like testing
docker compose up mcp-devtoolsdocker-compose.yml features:
Hot-reload for source code changes
Volume mounts for project access
Separate services for dev, test, and lint
Environment variable configuration
Building Custom Images
Build your own image with custom tools:
# Extend the base image
FROM ghcr.io/rshade/mcp-devtools-server:latest
# Install additional tools
RUN apk add --no-cache \
docker-cli \
kubectl
# Copy custom configuration
COPY .mcp-devtools.json /app/Build and run:
docker build -t my-mcp-devtools:latest .
docker run -i --rm my-mcp-devtools:latestCI/CD Integration
The project includes automated Docker builds via GitHub Actions:
Automatic builds on push to main and tags
Multi-platform support (linux/amd64, linux/arm64)
Security scanning with Trivy
Layer caching for fast builds
Published to GitHub Container Registry (ghcr.io)
Available image tags:
latest- Latest stable releasev1.2.3- Specific version tagsmain-abc123- Branch-specific builds with commit SHAdev- Development builds (not published)
Configuration Options
Control Docker behavior with environment variables:
# Set log level
docker run -i --rm \
-e LOG_LEVEL=debug \
ghcr.io/rshade/mcp-devtools-server:latest
# Set Node environment
docker run -i --rm \
-e NODE_ENV=production \
ghcr.io/rshade/mcp-devtools-server:latestVolume Mounts for Project Access
Mount your project directory to work with your code:
docker run -i --rm \
-v "$(pwd):/workspace" \
-w /workspace \
ghcr.io/rshade/mcp-devtools-server:latestTroubleshooting Docker
Issue: Permission denied when accessing files
Ensure volume mount paths are correct
Check file permissions in mounted directory
Use
--userflag to match host user ID:
docker run -i --rm \
--user $(id -u):$(id -g) \
-v "$(pwd):/workspace" \
ghcr.io/rshade/mcp-devtools-server:latestIssue: Container exits immediately
MCP protocol uses stdio - ensure
-i(interactive) flag is setCheck logs with
docker logs <container_id>Verify environment variables are set correctly
Issue: Cannot connect to Claude Desktop
Ensure
commandis"docker"not"docker run"Check
argsarray formatting in claude_desktop_config.jsonVerify image is pulled:
docker pull ghcr.io/rshade/mcp-devtools-server:latest
Configuration
Claude Desktop Integration
Build the project first:
npm run buildAdd to your Claude Desktop configuration file (
~/.claude/claude_desktop_config.json):{ "mcpServers": { "mcp-devtools-server": { "command": "node", "args": ["/absolute/path/to/mcp-devtools-server/dist/index.js"], "env": { "LOG_LEVEL": "info" } }, "context7": { "command": "npx", "args": ["-y", "@upstash/context7-mcp"] } } }Replace
/absolute/path/to/mcp-devtools-serverwith your actual project path.Example configuration files:
See
examples/claude-desktop-config.jsonfor a complete exampleThe
.mcp.jsonfile in the project root is a template you can copy
Restart Claude Desktop after updating the configuration.
Project-Specific Configuration
Create a .mcp-devtools.json file in your project root:
{
"commands": {
"lint": "make lint",
"test": "make test",
"build": "make build",
"clean": "make clean"
},
"linters": ["eslint", "markdownlint", "yamllint"],
"testRunner": "jest",
"timeout": 300000
}System Prompt Instructions
The MCP server automatically provides guidance to Claude via system prompt instructions (src/instructions.md).
These instructions help Claude:
Auto-discover the 50+ available mcp-devtools tools
Prefer MCP tools over built-in Bash commands for development tasks
Use onboarding wizard proactively when no configuration exists
Follow common workflows for linting, testing, PR preparation, and error analysis
Key behaviors enabled:
When starting work, Claude checks for
.mcp-devtools.jsonand offers to runonboarding_wizardif missingFor linting, Claude uses
make_lint,eslint, etc. instead ofBash(make lint)For error handling, Claude uses
analyze_commandfor automatic failure analysisClaude runs
project_statusbefore starting work to understand available tooling
The instructions are token-efficient (< 100 lines) and focus on operational guidance rather than marketing content.
Usage Examples
Basic Commands
// Run make lint
await callTool('make_lint', {});
// Run make test with specific target
await callTool('make_test', { target: 'unit-tests' });
// Run all linters
await callTool('lint_all', { fix: true });
// Get project status
await callTool('project_status', {});Go Language Usage 🚀 PRIORITY
// Run Go tests with coverage and race detection
await callTool('go_test', {
coverage: true,
race: true,
verbose: true
});
// Build Go application with specific tags
await callTool('go_build', {
tags: ["integration", "postgres"],
verbose: true
});
// Format Go code
await callTool('go_fmt', {
write: true,
simplify: true
});
// Lint Go code with custom config
await callTool('go_lint', {
config: ".golangci.yml",
fix: true
});
// Vet Go code for issues
await callTool('go_vet', { package: "./..." });
// Tidy Go modules
await callTool('go_mod_tidy', { verbose: true });
// Run benchmarks with memory profiling
await callTool('go_benchmark', {
benchmem: true,
benchtime: '10s',
cpu: [1, 2, 4]
});
// Execute code generation
await callTool('go_generate', {
run: 'mockgen',
verbose: true
});
// Cross-compile for different platforms
await callTool('go_build', {
goos: 'linux',
goarch: 'arm64',
ldflags: '-X main.version=1.0.0',
output: './bin/app-linux-arm64'
});
// Manage Go workspaces
await callTool('go_work', {
command: 'use',
modules: ['./moduleA', './moduleB']
});
// Scan for vulnerabilities
await callTool('go_vulncheck', {
mode: 'source',
json: true
});File Validation Usage
// Check all TypeScript and JavaScript files for missing newlines
await callTool('ensure_newline', {
patterns: ['src/**/*.ts', 'src/**/*.js'],
mode: 'check',
exclude: ['node_modules/**', 'dist/**']
});
// Fix all markdown files (automatically adds trailing newlines)
await callTool('ensure_newline', {
patterns: ['**/*.md'],
mode: 'fix',
exclude: ['node_modules/**']
});
// Validate in CI/CD pipeline (exits with error if non-compliant)
await callTool('ensure_newline', {
patterns: ['**/*'],
mode: 'validate',
exclude: ['node_modules/**', '.git/**', 'dist/**', '*.min.js'],
maxFileSizeMB: 5
});
// Check specific file types only
await callTool('ensure_newline', {
patterns: ['**/*'],
fileTypes: ['*.ts', '*.go', '*.md', '*.json'],
mode: 'check'
});
// Fix files after AI code generation
await callTool('ensure_newline', {
patterns: ['src/**/*.ts', 'test/**/*.ts'],
mode: 'fix',
skipBinary: true // default: true
});Environment Variables Usage
// Load default .env file with masking (default behavior)
await callTool('dotenv_environment', {});
// Load specific .env file
await callTool('dotenv_environment', {
file: '.env.production'
});
// Load without masking (for debugging - use carefully!)
await callTool('dotenv_environment', {
mask: false
});
// Load with custom mask patterns
await callTool('dotenv_environment', {
maskPatterns: ['CUSTOM_SECRET', 'INTERNAL']
});
// Include process.env variables
await callTool('dotenv_environment', {
includeProcessEnv: true
});
// Full control example
await callTool('dotenv_environment', {
file: '.env.staging',
directory: '/path/to/project',
mask: true,
maskPatterns: ['CUSTOM_SECRET'],
includeProcessEnv: false
});Advanced Usage
// Run tests with coverage
await callTool('run_tests', {
coverage: true,
pattern: "*.test.js"
});
// Lint specific files
await callTool('markdownlint', {
files: ["README.md", "docs/*.md"],
fix: true
});
// Build with parallel jobs
await callTool('make_build', { parallel: 4 });CI/CD Integration
GitHub Actions Example
Add EOL validation to your GitHub Actions workflow:
name: Lint
on: [push, pull_request]
jobs:
validate-eol:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v3
- name: Setup Node.js
uses: actions/setup-node@v3
with:
node-version: '18'
- name: Install MCP DevTools Server
run: |
git clone https://github.com/rshade/mcp-devtools-server.git
cd mcp-devtools-server
npm install
npm run build
- name: Validate EOL compliance
run: |
# Use the ensure_newline tool in validate mode
# This will exit with error if any files lack trailing newlines
node mcp-devtools-server/dist/index.js ensure_newline \
--patterns "**/*.ts" "**/*.js" "**/*.md" \
--mode validate \
--exclude "node_modules/**" "dist/**"Pre-commit Hook
Add to your .git/hooks/pre-commit or use with Husky:
#!/bin/bash
# Automatically fix missing newlines before commit
npx mcp-devtools-server ensure_newline \
--patterns "**/*.ts" "**/*.js" "**/*.go" "**/*.md" \
--mode fix \
--exclude "node_modules/**" "vendor/**" "dist/**"
# Stage any files that were fixed
git add -uArchitecture
The MCP DevTools Server is built on a modular, secure architecture:
Secure Shell Execution - Command allowlist and argument sanitization
Plugin System - Auto-discovery and lifecycle management
Intelligent Caching - LRU cache with file-based invalidation (5-10x speedups)
Project Detection - Auto-configuration for Node.js, Python, Go, and more
40+ Tools - Comprehensive development tool integration
🏗️ View Complete Architecture Documentation
Plugin System
The MCP DevTools Server supports an extensible plugin architecture that allows you to add custom tools and integrations without modifying the core codebase.
What Are Plugins?
Plugins extend the server with additional functionality:
Custom tools accessible through the MCP protocol
Language/framework support (Docker, Kubernetes, etc.)
CI/CD integrations (GitHub Actions, Jenkins, etc.)
IDE enhancements (formatters, linters, etc.)
Notification systems (Slack, Discord, Email)
Available Plugins
git-spice Plugin
A reference implementation demonstrating best practices for plugin development. Provides Git stacked branch management tools.
Tools Provided:
git_spice_branch_create- Create new stacked branchesgit_spice_branch_checkout- Checkout existing branchesgit_spice_stack_submit- Submit entire stack as pull requestsgit_spice_stack_restack- Rebase stack on latest changesgit_spice_log_short- View current stack visualizationgit_spice_repo_sync- Sync with remote and cleanup merged branches
Example Configuration:
{
"plugins": {
"enabled": ["git-spice"],
"git-spice": {
"defaultBranch": "main",
"autoRestack": false,
"jsonOutput": true,
"timeout": 60000
}
}
}Usage Example:
// Create a new feature branch
await callTool('git_spice_branch_create', {
name: 'feature/add-authentication',
base: 'main'
});
// Create a stacked branch on top of the first
await callTool('git_spice_branch_create', {
name: 'feature/auth-service',
base: 'feature/add-authentication'
});
// View the stack
await callTool('git_spice_log_short', {});
// Submit all as PRs
await callTool('git_spice_stack_submit', { draft: false });See the git-spice User Guide for detailed documentation.
Plugin Architecture
How Plugins Work
┌─────────────────────────────────────┐
│ MCP DevTools Server │
│ ┌───────────────────────────────┐ │
│ │ Plugin Manager │ │
│ │ - Discovery │ │
│ │ - Registration │ │
│ │ - Tool Routing │ │
│ └───────────┬───────────────────┘ │
│ │ │
│ ┌───────────┴───────────────────┐ │
│ │ Plugin 1 │ Plugin 2 │ │
│ │ ┌─────┐ │ ┌─────┐ │ │
│ │ │Tool1│ │ │Tool3│ │ │
│ │ │Tool2│ │ │Tool4│ │ │
│ │ └─────┘ │ └─────┘ │ │
│ └──────────────┴────────────────┘ │
│ │ │
│ ┌───────────┴───────────────────┐ │
│ │ Shared ShellExecutor │ │
│ │ (Security Layer) │ │
│ └───────────────────────────────┘ │
└─────────────────────────────────────┘Plugin Lifecycle
Discovery: PluginManager scans
src/plugins/*-plugin.tsValidation: Checks required dependencies
Initialization: Calls
initialize()with contextRegistration: Calls
registerTools()to get tool listExecution: Routes tool calls to
handleToolCall()Shutdown: Calls
shutdown()on server exit
Tool Namespacing
Tools are automatically prefixed with plugin name to prevent conflicts:
Plugin: git-spice
Tool: branch_create
Result: git_spice_branch_createDeveloping Plugins
Quick Start (5 Minutes)
Copy the template:
cp examples/plugins/custom-plugin-example.ts src/plugins/my-tool-plugin.tsUpdate metadata:
metadata: PluginMetadata = { name: 'my-tool', version: '1.0.0', description: 'Integration with my-tool', requiredCommands: ['my-tool'], tags: ['utility'], };Implement a tool:
async registerTools(): Promise<PluginTool[]> { return [{ name: 'execute', description: 'Execute my-tool command', inputSchema: { type: 'object', properties: { args: { type: 'array', items: { type: 'string' } } } } }]; }Build and test:
npm run build node dist/index.js
Your plugin will be auto-discovered and loaded!
Plugin Interface
All plugins must implement the Plugin interface:
export class MyPlugin implements Plugin {
// Metadata (required)
metadata: PluginMetadata = {
name: 'my-plugin',
version: '1.0.0',
description: 'My custom plugin',
requiredCommands: ['my-command'],
tags: ['utility'],
};
// Lifecycle methods (required)
async initialize(context: PluginContext): Promise<void> {
// Validate required commands are available
// Initialize any state
}
async registerTools(): Promise<PluginTool[]> {
// Return array of tool definitions
}
async handleToolCall(toolName: string, args: unknown): Promise<unknown> {
// Route to appropriate tool method
}
// Optional methods
async validateConfig?(config: unknown): Promise<boolean> { }
async shutdown?(): Promise<void> { }
async healthCheck?(): Promise<PluginHealth> { }
}Plugin Context
Every plugin receives a context with:
interface PluginContext {
config: Record<string, unknown>; // Plugin configuration
projectRoot: string; // Project directory
shellExecutor: ShellExecutor; // Secure command execution
logger: winston.Logger; // Scoped logger
utils: PluginUtils; // Helper functions
}Security Best Practices
Always use the shared ShellExecutor - Never execute commands directly
Validate all input with Zod schemas - Runtime type safety
Add commands to the allowlist - Update
src/utils/shell-executor.tsSanitize user input - Prevent command injection
No dynamic code execution - Never use
eval()orFunction()
Example:
import { z } from 'zod';
const MyToolArgsSchema = z.object({
input: z.string().min(1).describe('Input parameter'),
verbose: z.boolean().optional().describe('Verbose output'),
});
private async myTool(args: unknown): Promise<MyToolResult> {
// 1. Validate input
const validated = MyToolArgsSchema.parse(args);
// 2. Execute through ShellExecutor
const result = await this.context.shellExecutor.execute(
`my-command ${validated.input}`,
{
cwd: this.context.projectRoot,
timeout: 60000,
}
);
// 3. Return structured result
if (result.success) {
return { success: true, output: result.stdout };
} else {
return {
success: false,
error: result.stderr,
suggestions: this.generateSuggestions(result.stderr),
};
}
}Plugin Documentation
Developer Guide: docs/plugin-development.md - Comprehensive guide covering architecture, implementation, testing, and best practices
git-spice User Guide: docs/plugins/git-spice.md - Complete user documentation for the git-spice plugin
Template: examples/plugins/custom-plugin-example.ts - Ready-to-use plugin template with TODOs
Testing Plugins
Create tests in src/__tests__/plugins/your-plugin.test.ts:
import { describe, it, expect, beforeEach } from '@jest/globals';
import { YourPlugin } from '../../plugins/your-plugin.js';
describe('YourPlugin', () => {
let plugin: YourPlugin;
let mockContext: PluginContext;
beforeEach(() => {
plugin = new YourPlugin();
mockContext = createMockContext();
});
it('should initialize successfully', async () => {
await expect(plugin.initialize(mockContext)).resolves.not.toThrow();
});
it('should execute tool successfully', async () => {
const result = await plugin.handleToolCall('my_tool', {
input: 'test'
});
expect(result).toMatchObject({ success: true });
});
});Coverage Goals:
Plugin Manager: 90%+ coverage
Individual Plugins: 85%+ coverage
Error Handling
The server provides comprehensive error handling with:
Structured error responses
Helpful suggestions for common failures
Exit code interpretation
Tool availability checking
Contributing
Contributions are welcome! This project is built on continuous learning and improvement.
Please read our Contributing Guidelines for detailed information on how to contribute to this project.
Quick Links
Contributing Guidelines - How to contribute
Code of Conduct - Community standards
Security Policy - Reporting vulnerabilities
API Documentation - TypeDoc generated API docs
Development Workflow
Fork the repository
Create a feature branch
Make your changes
Add tests for new functionality
Run linting and tests
Submit a pull request
For detailed instructions, see CONTRIBUTING.md.
Areas for Contribution
Better development patterns
Error prevention strategies
Workflow optimizations
Tool integrations
Documentation improvements
Troubleshooting
Common Issues
Command not found errors
Ensure required tools are installed
Check PATH environment variable
Verify tool permissions
Permission denied
Check file permissions in project directory
Ensure write permissions for build outputs
Timeout errors
Increase timeout values in configuration
Optimize slow operations
Check system resources
EOL/Newline validation issues
Files created by AI often miss trailing newlines
Use
ensure_newlinewithmode: 'fix'to automatically correctBinary files are automatically skipped - check file encoding if issues persist
CRLF vs LF is automatically detected and preserved
Use
validatemode in CI/CD to catch issues before commit
Debug Mode
Enable debug logging:
LOG_LEVEL=debug npm startLicense
This project is licensed under the Apache License 2.0 - see the LICENSE file for details.
Acknowledgments
This project represents an ongoing effort to improve the developer experience when working with AI-powered coding assistants. All feedback and contributions help shape better development practices for the community.
Project Status & Roadmap
Current Status: MVP 0.0.1 Released ✅
Active Development: 2025-Q2 - Plugin Architecture & Performance
Quick Overview:
✅ Q1 2025: Go Support & Core Foundation (100% complete - 5/5 issues)
🚀 Q2 2025: Plugin Ecosystem & Performance (2/10 issues)
🔮 Q3 2025: User Experience & AI Integration
📊 Q4 2025: Team Collaboration & Enterprise
Available Tools
71 toolsactionlintB
Validate GitHub Actions workflow files for syntax errors, invalid parameters, and best practices
| Name | Required | Description | Default |
|---|---|---|---|
| args | No | Additional arguments | |
| color | No | Enable colored output | |
| files | No | Specific workflow files to lint (supports glob patterns) | |
| format | No | Output format for validation results | |
| ignore | No | Ignore rules by glob pattern | |
| noColor | No | Disable colored output | |
| timeout | No | Command timeout in milliseconds | |
| verbose | No | Enable verbose output | |
| pyflakes | No | Enable pyflakes for Python run: blocks (default: false) | |
| directory | No | Working directory for the command | |
| shellcheck | No | Enable shellcheck integration for run: blocks (default: true) |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description must fully disclose behavioral traits. It only describes validation scope without addressing read-only nature, required permissions, network usage, or side effects. The integration with pyflakes/shellcheck is not explained.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single sentence that is concise and front-loaded with the core purpose. Every word earns its place.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given 11 parameters and no output schema, the description omits important details such as return format, exit codes, and typical usage patterns. It does not mention the format parameter or how results are presented.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100%, so the baseline is 3. The description does not add extra meaning beyond the schema; it rephrases schema descriptions minimally. No new context for parameters is provided.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool validates GitHub Actions workflow files for syntax errors, invalid parameters, and best practices. This is a specific verb-resource combination that distinguishes it from sibling linters targeting other languages.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides no explicit guidance on when to use this tool versus alternatives like lint_all or other linters. The context is implied by mentioning 'GitHub Actions workflow files', but there is no 'when to use' or 'when not to use' information.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
analyze_commandB
Execute a command and analyze the result with AI-powered smart suggestions. Provides intelligent recommendations for fixing failures, optimizing workflows, and identifying issues.
| Name | Required | Description | Default |
|---|---|---|---|
| args | No | Additional command arguments | |
| command | Yes | Command to execute and analyze | |
| context | No | Additional context for better suggestions | |
| timeout | No | Command timeout in milliseconds | |
| directory | No | Working directory for the command |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations provided, and the description does not disclose side effects, permission requirements, error handling, or output format. For a command execution tool, critical behavioral details are missing.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
Two sentences, front-loaded with key function. Efficient but could be slightly more concise without losing clarity.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
No output schema, and description lacks details on behavior like output format, error handling, or timeout implications. For a tool with 5 parameters and potential side effects, more completeness is needed.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Input schema has 100% coverage; parameters are described in schema. The description adds no additional meaning beyond the schema, so baseline of 3 is appropriate.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool executes a command and provides AI-powered analysis, with a specific verb and resource. However, it does not explicitly differentiate from siblings like 'analyze_result' or other execution tools, though the name and context imply uniqueness.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description implies use for running commands with analysis but lacks explicit guidance on when to use vs. alternatives, no exclusions or prerequisites mentioned.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
analyze_resultA
Analyze an already-executed command result and generate smart suggestions. Useful for post-mortem analysis and understanding failures.
| Name | Required | Description | Default |
|---|---|---|---|
| stderr | No | Standard error from command | |
| stdout | No | Standard output from command | |
| command | Yes | Command that was executed | |
| context | No | Additional context for better suggestions | |
| duration | No | Execution duration in milliseconds | |
| exitCode | Yes | Exit code from command execution |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description bears full responsibility. It discloses that the tool works on 'already-executed' results, implying it does not execute commands itself. However, it omits details about required permissions, side effects, or how suggestions are generated, which limits transparency.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is concise with two sentences, front-loaded with the primary purpose. Every sentence adds value, and there is no unnecessary information. It achieves clarity without verbosity.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool's complexity (six parameters, nested objects) and lack of output schema, the description is minimal. It does not explain what 'smart suggestions' entail or the return format. While the schema covers inputs, the behavioral and output aspects are under-specified, making it merely adequate for selection but not fully complete.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100%, so the baseline is 3. The description adds no additional meaning beyond what the schema provides for parameters. It does not explain how parameters like 'context' influence suggestions, but the schema descriptions are sufficient for basic understanding.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool's purpose: analyzing an executed command result and generating suggestions. It uses a specific verb ('analyze') and resource ('command result'). However, it does not differentiate from the sibling tool 'analyze_command', which could have overlapping functionality.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description mentions use cases ('post-mortem analysis' and 'understanding failures'), providing some contextual guidance. However, it does not explicitly state when not to use this tool or suggest alternatives, leaving the agent to infer usage boundaries.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
code_reviewC
Perform automated code review analysis on Git changes
| Name | Required | Description | Default |
|---|---|---|---|
| base | No | Base branch to compare against (default: main) | |
| focus | No | Focus area for review | |
| maxFiles | No | Maximum number of files to review | |
| directory | No | Working directory for the command | |
| includeTests | No | Include test files in review |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description must disclose behavioral traits. It only mentions 'automated code review analysis' without details on destructiveness, permissions, or what the analysis entails (e.g., security, performance).
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single sentence with no fluff. It is concise but could benefit from slightly more detail without becoming verbose.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a tool with 5 parameters and no output schema, the description is too minimal. It does not explain the nature of the analysis, how results are returned, or how the focus parameter affects behavior.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Input schema has 100% description coverage, so the schema already documents the parameters. The description adds no additional meaning beyond what the schema provides, so baseline score of 3 applies.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool performs automated code review analysis on Git changes, using specific verb and resource. It distinguishes from sibling linting tools like eslint or staticcheck by being a broader code review tool.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
No guidance on when to use this tool versus the numerous sibling linting and analysis tools. The description does not provide context for selection or exclusion.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
commitlintC
Run commitlint to validate commit messages
| Name | Required | Description | Default |
|---|---|---|---|
| args | No | Additional arguments to pass to commitlint | |
| message | No | Specific commit message to validate | |
| directory | No | Working directory for the lint command |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the full burden. It states the tool runs commitlint but does not disclose whether it modifies files, requires configuration, or produces standard output. Minimal behavioral context.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
A single, concise sentence that communicates the core purpose. It is front-loaded but could include more detail without losing conciseness.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given no output schema and no annotations, the description is too sparse. It does not explain return values, exit codes, or how the validation result is reported, leaving the agent without sufficient operational context.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100%, with each parameter described. The description adds no extra meaning beyond the schema, such as command syntax or parameter interactions. Baseline of 3 is appropriate.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the verb 'run' and the resource 'commitlint', and the purpose 'validate commit messages'. It distinguishes from sibling tools like eslint or markdownlint, though not explicitly.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
No guidance on when to use this tool vs alternatives. It does not specify contexts where commitlint is preferred over other linters, nor mention prerequisites or required configurations.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
detect_projectB
Analyze project and generate comprehensive profile including type, language, framework, build system, and tooling
| Name | Required | Description | Default |
|---|---|---|---|
| directory | No | Working directory to analyze (defaults to current directory) |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries full burden. It states the tool analyzes and generates a profile but omits any behavioral details such as side effects, permissions, rate limits, or that it is a read-only operation. The disclosure is minimal.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single concise sentence that front-loads the purpose and lists key outputs. Every word contributes value with no redundancy.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given no output schema and no annotations, the description partially compensates by listing profile contents. However, it does not specify the output format (e.g., JSON fields) or how the result is structured, leaving some ambiguity for agent usage.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100% with one parameter described as 'Working directory to analyze (defaults to current directory)'. The description adds no additional meaning beyond what the schema already provides, meeting the baseline for high schema coverage.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly specifies the verb 'analyze' and 'generate', the resource 'project profile', and lists contents (type, language, framework, build system, tooling). It distinguishes itself from sibling tools that are language-specific (e.g., go_project_info, python_project_info) by being a generic comprehensive analyzer.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description does not provide guidance on when to use this tool versus alternatives. It lacks explicit context like 'Use this to identify project type before running language-specific tools' or 'Not needed for already known languages'. No exclusions or alternative references are given.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
dotenv_environmentA
Load and parse environment variables from .env files, making them visible to AI assistants through MCP context. Automatically masks sensitive values (passwords, tokens, API keys) while exposing configuration values safely.
| Name | Required | Description | Default |
|---|---|---|---|
| file | No | Path to .env file (default: .env) | |
| mask | No | Mask sensitive values (default: true) | |
| directory | No | Working directory (default: current directory) | |
| maskPatterns | No | Custom patterns to mask (in addition to defaults: PASSWORD, SECRET, TOKEN, KEY, API_KEY, PRIVATE, CREDENTIALS, AUTH) | |
| includeProcessEnv | No | Include process.env variables (default: false) |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries full burden. It discloses automatic masking of sensitive values and that variables become visible to AI assistants. However, it lacks details on side effects (e.g., override behavior, persistence, error handling) and omits information about return values or state changes.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is only two sentences, front-loads the core purpose, and contains no redundant information. Every sentence adds value.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a tool with 5 parameters, no output schema, and no annotations, the description adequately covers the main purpose and the key behavioral aspect (masking). However, it does not explain what happens after loading (e.g., return type, side effects like overriding existing env vars), leaving some gaps for an AI agent to infer.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100% with all 5 parameters described in the schema. The description adds no additional parameter context beyond what the schema provides. Baseline score of 3 is appropriate.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description uses specific verbs ('Load and parse') and clearly identifies the resource ('.env files'). It also distinguishes the tool's purpose by mentioning automatic masking of sensitive values, which is unique among many sibling tools.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description implies usage when environment variables from .env files need to be loaded, but it does not explicitly state when to use this tool versus alternatives or when not to use it. No usage exclusions or alternative recommendations are provided.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
ensure_newlineA
Validate and fix POSIX newline compliance. Checks if files end with proper newline characters. Modes: check (report only), fix (auto-correct), validate (error if non-compliant for CI/CD).
| Name | Required | Description | Default |
|---|---|---|---|
| cwd | No | Working directory (defaults to project root) | |
| mode | Yes | check=report only, fix=auto-correct, validate=error if non-compliant | |
| exclude | No | Patterns to exclude (e.g., ['node_modules/**', '*.min.js']) | |
| patterns | Yes | Glob patterns for files to check (e.g., ['src/**/*.ts', '*.md']) | |
| fileTypes | No | File types to process (e.g., ['*.ts', '*.go', '*.md']) | |
| skipBinary | No | Skip binary files automatically (default: true) | |
| maxFileSizeMB | No | Maximum file size to process in MB (default: 10) |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
The description discloses the three modes (check, fix, validate) and their behaviors (report only, auto-correct, error if non-compliant). It does not, however, mention details about handling binary files or max file size, nor does it state whether the fix mode is destructive or reversible. Overall, it covers the key behaviors sufficiently for a compliance tool.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is extremely concise: two sentences that front-load the purpose and explain key modes. Every sentence adds value without redundancy. It is well-structured for quick comprehension.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
With 7 parameters and no output schema, the description is somewhat minimal. It explains the purpose and modes but does not tie the parameters together (e.g., how `patterns` and `exclude` work). The schema covers details, but the description could be more complete by briefly mentioning that parameters refine file selection and processing.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
All 7 parameters are described in the input schema (100% coverage), so the baseline is 3. The description only mentions modes but does not add new meaning beyond the schema. It does not explain how parameters like `exclude`, `skipBinary`, or `maxFileSizeMB` affect the tool's operation, but this is acceptable given schema completeness.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool's purpose: 'Validate and fix POSIX newline compliance' and explains what it does (checks if files end with proper newline characters). It lists three modes, making the functionality specific and distinct from any sibling tools, none of which appear related to newline compliance.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description implicitly indicates when to use the tool (when POSIX newline compliance is needed) but does not explicitly mention when not to use it or suggest alternatives. Given the uniqueness of the tool among siblings, the guidance is adequate but could include more context like 'Use this before committing to ensure POSIX compliance'.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
eslintC
Run ESLint on JavaScript/TypeScript files
| Name | Required | Description | Default |
|---|---|---|---|
| fix | No | Automatically fix issues where possible | |
| args | No | Additional arguments to pass to ESLint | |
| files | No | Specific files to lint (glob patterns supported) | |
| directory | No | Working directory for the lint command |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations provided. Description does not disclose side effects (e.g., file modifications via fix), output format, or required permissions for a linting tool.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
Single sentence, no redundancy. Front-loaded with key information.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Despite 4 parameters, description lacks context on return values (no output schema), error handling, or behavior when fix is enabled. Minimal for a linting tool.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema covers all parameters (100% description coverage). Description adds no additional meaning beyond schema, baseline score of 3 is appropriate.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
Description states 'Run ESLint on JavaScript/TypeScript files', clearly identifying the verb and resource. It distinguishes from sibling linters by specifying language, but could be more descriptive about the tool's purpose.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
No guidance on when to use ESLint vs alternative linters (e.g., nodejs_lint, markdownlint). Missing context on prerequisites or scenarios.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
generate_configA
Generate MCP DevTools configuration preview based on project detection without writing to file
| Name | Required | Description | Default |
|---|---|---|---|
| directory | No | Working directory to analyze (defaults to current directory) |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
The description discloses the key behavioral trait of not writing to file, which is important. However, it does not mention what output is produced, how project detection works, or what happens if detection fails. Without annotations, more detail would help.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single concise sentence that front-loads the core purpose and key behavior (no file writing). No unnecessary words.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the single optional parameter and no output schema, the description is mostly adequate but lacks information on the output format (e.g., printed to stdout) and how the preview should be used after generation.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100% with a clear description for the single parameter. The tool description adds no further meaning beyond the schema, so baseline score of 3 is appropriate.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool generates a configuration preview based on project detection and explicitly notes it does not write to file, distinguishing it from sibling tools that may actually create or modify configs.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
No guidance is provided on when to use this tool versus alternatives like detect_project or project_status. The description implies it's for previewing, but lacks explicit context on when to choose it over siblings.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
generate_pr_messageB
Generate a PR message based on Git changes
| Name | Required | Description | Default |
|---|---|---|---|
| base | No | Base branch to compare against (default: main) | |
| type | No | Commit type (conventional commits) | |
| scope | No | Commit scope | |
| directory | No | Working directory for the command | |
| useTemplate | No | Use GitHub PR template if available (default: true) | |
| includeIssue | No | Issue number to reference (e.g., "123") | |
| includeBreaking | No | Include breaking changes section |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries full burden for behavioral disclosure. It does not mention side effects, required environment (e.g., Git repo), network access, or output format. The behavior is implied but underspecified.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single sentence, which is concise but lacks structure. It could be improved with bullet points or additional sentences. It is not excessively wordy but borderline under-specified.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a tool with 7 parameters and no output schema, the description is very minimal. It does not explain return values, error conditions, or when to adjust defaults. Agents may lack sufficient context for proper invocation.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so the schema already documents all 7 parameters. The description adds no extra meaning beyond the schema. Baseline 3 is appropriate.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the verb 'Generate', the resource 'PR message', and the context 'based on Git changes'. It is specific and distinct from sibling tools, which are mostly linting, building, or testing tools.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides no guidance on when or when not to use this tool, nor does it mention alternatives or prerequisites. It simply states what it does without context for selection.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
get_current_datetimeA
Get current date and time with rich temporal context for LLM awareness. Provides human-readable format, timezone info, calendar context (quarter, week, day-of-year), and relative calculations.
| Name | Required | Description | Default |
|---|---|---|---|
| timezone | No | IANA timezone identifier (e.g., 'America/New_York', 'UTC'). Defaults to system timezone. | |
| include_calendar | No | Include calendar information like quarter, week, etc. (default: true) |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations provided, so the description carries the full burden. It discloses that it provides timezone info, calendar context, and relative calculations, but does not mention network dependence or other behavioral traits. However, for a datetime tool, the description is sufficient.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
Two efficient sentences. Front-loaded with core purpose, no wasted words. Structure is clean and readable.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Despite no output schema, description hints at return format. Adequate for a simple datetime tool; could be improved by specifying exact output fields or example, but not necessary.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100% with clear parameter descriptions. The description adds value by indicating output richness (human-readable, timezone, calendar, relative calculations) beyond parameter details.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
Description clearly states verb 'get' and resource 'current date and time' with specifics like human-readable format, timezone info, calendar context, and relative calculations. Distinct from sibling tools which are development-oriented.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
No explicit guidance on when to use vs. alternatives, but context suggests it's a general-purpose datetime utility. No exclusions or references to other tools.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
get_knowledge_base_statsB
Get statistics about the smart suggestions knowledge base, including total patterns and categorization.
| Name | Required | Description | Default |
|---|---|---|---|
| category | No | Filter by category (security, performance, maintainability, etc.) |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden. It implies a read-only operation ('Get statistics') and mentions the output includes 'total patterns and categorization', but does not explicitly state safety, side effects, or response format. This is minimally adequate.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single, concise sentence of 14 words, front-loading the purpose and key output details. No redundant or extra information.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool's simplicity (one optional parameter, no output schema, no annotations), the description provides a basic but incomplete picture. It mentions the output includes 'total patterns and categorization' but does not specify the structure or additional fields, which could be useful for an agent.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The single optional parameter 'category' has a description in the schema, and the tool description adds examples ('security, performance, maintainability, etc.') that go beyond the schema, adding meaning. Schema coverage is 100%, so the description adds value.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description uses a specific verb ('Get') and identifies the resource ('statistics about the smart suggestions knowledge base'), clearly stating the tool's purpose. However, it does not differentiate from siblings, but there are no closely related siblings among the provided list.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
No guidance is provided on when to use this tool versus alternatives or any contextual prerequisites. The description only states what it does, not when it is appropriate.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
go_benchmarkC
Run Go benchmarks to measure code performance
| Name | Required | Description | Default |
|---|---|---|---|
| cpu | No | CPU counts to test (e.g., [1, 2, 4]) | |
| args | No | Additional arguments | |
| count | No | Run each benchmark n times | |
| package | No | Go package to benchmark (e.g., ./...) | |
| timeout | No | Command timeout in milliseconds | |
| benchmem | No | Print memory allocation statistics | |
| benchtime | No | Benchmark duration (e.g., 10s, 100x) | |
| directory | No | Working directory | |
| benchmarks | No | Benchmark pattern to run (e.g., BenchmarkFoo) |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations provided, and the description does not disclose any behavioral traits such as side effects, permissions, or resource usage. It only states the basic action.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
One sentence with no waste, but lacks details. Could be more informative while remaining concise.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
No output schema, but description does not explain return values or result format. Tool has 9 parameters; lacks completeness for effective usage.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100%, so baseline is 3. Description does not add meaning beyond the schema, but schema already documents parameters adequately.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
Description clearly specifies 'Run Go benchmarks to measure code performance', which is a specific verb and resource. It distinguishes from siblings like go_test and python_benchmark.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
No guidance on when to use this tool versus alternatives. With many sibling tools, explicit context is missing.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
go_buildA
Build Go packages with cross-compilation and custom build flags support
| Name | Required | Description | Default |
|---|---|---|---|
| args | No | Additional arguments | |
| goos | No | Target operating system (linux, darwin, windows, etc.) | |
| race | No | Enable race condition detection | |
| tags | No | Build tags to include | |
| goarch | No | Target architecture (amd64, arm64, 386, etc.) | |
| output | No | Output binary path | |
| ldflags | No | Link flags to pass to the linker (e.g., -X main.version=1.0.0) | |
| package | No | Go package to build | |
| timeout | No | Command timeout in milliseconds | |
| verbose | No | Enable verbose output | |
| directory | No | Working directory for the command | |
| buildFlags | No | Additional build flags |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations provided. The description mentions cross-compilation and custom flags but lacks details on side effects (e.g., output binary location, file system modifications). Provides basic context but insufficient depth.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
A single sentence of 10 words, front-loaded with the core purpose. Every word is meaningful, no redundancy.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Despite 12 parameters and no output schema, the description omits key context: what the output is (binary), default behavior, prerequisites, or build directory conventions. Incomplete for effective usage.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so each parameter is documented. The description highlights cross-compilation and build flags but adds minimal meaning beyond the schema. Baseline 3 is appropriate.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the action (Build), resource (Go packages), and key features (cross-compilation, custom build flags). It distinguishes itself from sibling tools like go_test or go_lint.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
No explicit guidance on when to use this tool vs alternatives (e.g., make_build). The name implies usage for building Go packages, but no when-not or alternative references are given.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
go_fmtB
Format Go code using gofmt
| Name | Required | Description | Default |
|---|---|---|---|
| files | No | Specific files to format | |
| write | No | Write changes to files | |
| simplify | No | Simplify code | |
| directory | No | Working directory |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations provided, and the description fails to disclose key behaviors such as whether it modifies files (the write parameter) or simplifies code. Only states the basic action.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
Very concise at 5 words, front-loaded with verb and resource. However, it sacrifices completeness; a slightly longer description could include key behavioral details without losing conciseness.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
With 4 parameters, no output schema, and no annotations, the description is insufficient. It does not explain the tool's ability to write changes or simplify code, leaving the agent underinformed about its full capabilities.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
All 4 parameters have descriptions in the schema (100% coverage), so the description adds no additional value beyond the schema. Baseline of 3 applies.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the action (Format), target (Go code), and method (using gofmt). It effectively distinguishes from sibling tools like go_lint or go_build.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
No guidance on when to use this tool versus alternatives. No mention of prerequisites, common use cases, or when not to use it.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
go_generateC
Run go generate to execute code generation directives
| Name | Required | Description | Default |
|---|---|---|---|
| run | No | Only run generate directives matching this regex | |
| args | No | Additional arguments | |
| skip | No | Skip generate directives matching this regex | |
| dryRun | No | Print commands without running them | |
| package | No | Go package to run generate on (e.g., ./...) | |
| timeout | No | Command timeout in milliseconds | |
| verbose | No | Enable verbose output | |
| directory | No | Working directory |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the full burden of disclosing behavior. It only states it runs 'go generate', but does not mention that this may modify source files, require specific permissions, or any side effects. The dryRun parameter hints at potential changes, but the description itself is silent.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single sentence, concise and front-loaded with action: 'Run go generate'. It wastes no words, but could benefit from slightly more detail without losing conciseness.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the complexity (8 parameters, many sibling tools, no output schema, no annotations), the description is too minimal. It does not explain what output to expect, how the tool integrates with a workflow, or how it compares to the list of siblings.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
All 8 parameters have descriptions in the input schema (100% coverage), so the schema already documents them. The description adds no additional meaning beyond the schema, earning the baseline score of 3.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
Description clearly states the tool runs 'go generate' to execute code generation directives. This verb+resource is specific and distinguishes it from sibling tools like go_build or go_test. However, it lacks a brief explanation of what 'code generation directives' are, which could be clearer.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
No guidance on when to use this tool versus alternatives. The description does not mention prerequisites, exclusions, or compare to sibling tools like go_lint or go_build. The user must infer usage from the tool name alone.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
go_lintB
Lint Go code using golangci-lint with comprehensive configuration options
| Name | Required | Description | Default |
|---|---|---|---|
| fix | No | Fix issues automatically where possible | |
| paths | No | Specific paths or packages to lint (defaults to ./...) | |
| config | No | Path to golangci-lint config file (.golangci.yml) | |
| format | No | Output format (colored-line-number, line-number, json, tab, checkstyle, code-climate, html, junitxml, github-actions) | |
| timeout | No | Timeout for linting in seconds | |
| verbose | No | Enable verbose output | |
| directory | No | Working directory | |
| concurrency | No | Number of CPUs to use for linting | |
| enabledLinters | No | Specific linters to enable (e.g., golint, gofmt, ineffassign) | |
| disabledLinters | No | Specific linters to disable |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries the full burden. It does not disclose whether the tool modifies files (though 'fix' parameter hints), required environment, side effects, or return format. This is insufficient for safe use.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
Single sentence, front-loaded with core purpose. No unnecessary words or repetition.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Despite having 10 parameters and no output schema, the one-sentence description provides insufficient context. Missing details like output format, prerequisites, or example usage.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The input schema has 100% description coverage, so the description adds minimal value beyond 'comprehensive configuration options'. Baseline is 3, and the description does not enhance understanding of parameters.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool's purpose: 'Lint Go code using golangci-lint with comprehensive configuration options'. It uses a specific verb ('Lint') and resource ('Go code'), and mentions the underlying tool, differentiating it from siblings like go_vet or other language lint tools.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
No guidance on when to use this tool versus alternatives like go_vet, staticcheck, or other linting tools. The description lacks context for selection among the many sibling tools.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
go_mod_downloadC
Download Go module dependencies
| Name | Required | Description | Default |
|---|---|---|---|
| args | No | Additional arguments | |
| verbose | No | Enable verbose output | |
| directory | No | Working directory |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are present, so the description carries the full burden. It does not disclose that downloading may modify the module cache or require network access, nor does it mention any safety considerations (e.g., idempotency, destructive potential). For a tool that fetches dependencies, this is insufficient behavioral context.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is extremely concise (one sentence) but lacks structure. It is not overly verbose, but the brevity sacrifices detail. A slightly longer description with structured sections could improve usability without losing conciseness.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
The tool has no output schema and few sibling differentiators. The description does not explain what 'downloading' entails (e.g., updates go.sum, populates cache), nor does it note prerequisites (e.g., requires go.mod). For a simple command wrapper, the description is minimally adequate but leaves significant gaps for an agent.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The description adds no extra meaning beyond the input schema, which already describes all three parameters with generic labels (e.g., 'Additional arguments'). With 100% schema description coverage, baseline 3 is appropriate; the description does not improve parameter understanding.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the action ('Download') and the resource ('Go module dependencies'). It distinguishes the tool from siblings like go_mod_tidy by specifying the download action, but could be more precise (e.g., 'execute go mod download') to fully differentiate.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
No usage guidance provided. The description does not indicate when to use this tool versus alternatives like go_mod_tidy, go_build, or run_tests. An agent has no basis for selecting this tool over similar sibling tools.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
go_mod_tidyC
Tidy Go module dependencies
| Name | Required | Description | Default |
|---|---|---|---|
| verbose | No | Enable verbose output | |
| directory | No | Working directory |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
The description does not disclose that the tool modifies files (go.mod and go.sum) or any side effects. With no annotations, the description should provide more behavioral details.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single, concise sentence with no extraneous information.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the lack of output schema and annotations, the description is too minimal. It does not explain the effect on the project or what the tool does in detail.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100% with clear parameter descriptions. The description adds no additional meaning beyond what the schema already provides.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description 'Tidy Go module dependencies' uses a specific verb 'tidy' and identifies the resource. It is clear for those familiar with Go, but does not explicitly distinguish from sibling tools like go_mod_download.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
No guidance is provided on when to use this tool versus alternatives such as go_mod_download or go_build. The description gives no context for appropriate usage.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
go_project_infoC
Get comprehensive Go project information and analysis
| Name | Required | Description | Default |
|---|---|---|---|
| directory | No | Working directory to analyze |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, and the description does not disclose behavioral traits such as side effects, permissions, or error handling. It only states it gets info, leaving the agent unaware of potential failures or requirements.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single sentence with no unnecessary words. It is concise but could benefit from additional context without being verbose.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the lack of output schema, the description does not explain what information is returned (e.g., modules, dependencies, build settings). This leaves the agent uncertain about the tool's output and completeness.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100% with a single parameter 'directory' described. The description adds no param-specific detail beyond the schema, but the baseline is 3 due to high coverage. It does not clarify the expected format or defaults.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states it retrieves comprehensive Go project information, distinguishing it from sibling tools that build, test, or lint. However, it does not differentiate from similar 'info' tools for other languages.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description offers no guidance on when to use this tool versus alternatives like go_mod_download or go_mod_tidy. It lacks any context for appropriate usage.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
go_testB
Run Go tests with coverage and race detection
| Name | Required | Description | Default |
|---|---|---|---|
| args | No | Additional arguments | |
| race | No | Enable race condition detection | |
| tags | No | Build tags to include | |
| cover | No | Enable coverage analysis | |
| package | No | Go package to test (e.g., ./...) | |
| verbose | No | Enable verbose output | |
| directory | No | Working directory for the command |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description must carry the full burden. It only restates the parameter options (coverage, race) but does not disclose behavioral traits like whether tests might have side effects, required permissions, or output format.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single sentence that is front-loaded with the action. It is concise and efficient, though it could benefit from additional structure to provide more context.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given 7 optional parameters and missing annotations, the description is too minimal. It does not explain that the tool invokes 'go test', how arguments map, or what the return behavior is, making it incomplete for a complex test runner.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100%, so each parameter has a description. The tool description adds no further meaning beyond the schema; it merely repeats 'coverage and race detection' which correspond to parameters.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the verb 'Run' and the resource 'Go tests', and specifies key features 'coverage and race detection', which distinguishes it from sibling tools like go_build or generic run_tests.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description implies the tool is for running Go tests, but does not provide explicit guidance on when to use it versus alternatives like go_benchmark or go_vet, nor does it mention prerequisites or exclusions.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
go_vetC
Examine Go source code and report suspicious constructs
| Name | Required | Description | Default |
|---|---|---|---|
| args | No | Additional arguments | |
| package | No | Go package to vet (e.g., ./...) | |
| directory | No | Working directory |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, and the description only says 'examine and report' without detailing side effects, output format, or performance implications. This is insufficient for a stateless analysis tool.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
Description is very concise (one line) but at the cost of missing important details. It is front-loaded but could include more information without losing conciseness.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given no output schema and no annotations, the description should explain return values and behavior more thoroughly. It only provides a high-level purpose, leaving gaps for an AI agent.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100% but the description adds minimal value over the schema (only an example for package). The 'args' parameter remains vague; no additional semantics are provided.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
Description clearly states the tool examines Go source code for suspicious constructs, which distinctively identifies it among many Go-related siblings like go_lint and go_vulncheck.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
No guidance on when to use this tool versus alternatives like go_lint or staticcheck. The description implies use for Go vetting but does not provide exclusions or context.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
go_vulncheckB
Scan for known vulnerabilities using govulncheck
| Name | Required | Description | Default |
|---|---|---|---|
| args | No | Additional arguments | |
| json | No | Output results in JSON format | |
| mode | No | Analysis mode: source (analyze source code) or binary (analyze compiled binary) | |
| package | No | Go package or binary path to check | |
| timeout | No | Command timeout in milliseconds | |
| verbose | No | Enable verbose output | |
| directory | No | Working directory |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Without annotations, the description must disclose behavioral traits. It does not state whether the tool modifies files, requires network access, or assumes pre-installation of govulncheck. As a scanning tool, it is likely non-destructive, but this is not explicitly confirmed, so the agent lacks important safety information.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single sentence of 6 words, very concise and front-loaded with the core action. It earns its place by being clear, but could slightly expand to cover key behavioral aspects without losing conciseness.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Despite having 7 parameters, no output schema, and no annotations, the description is extremely sparse. It fails to explain return values, error handling, or practical usage context (e.g., whether it requires a Go module setup). The tool's complexity demands more context than provided.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
All 7 parameters are described in the input schema (100% coverage), so the baseline is 3. The description adds no additional meaning beyond the schema; it merely restates the tool's purpose. While not harmful, it does not enhance understanding of parameters like 'mode' or 'package'.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description 'Scan for known vulnerabilities using govulncheck' clearly identifies the tool's purpose with a specific verb ('scan') and resource ('known vulnerabilities') using govulncheck. It distinguishes itself among sibling tools like staticcheck (code quality) or go_test (testing), making it clear what this tool does uniquely.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides no guidance on when to use this tool versus alternatives, such as staticcheck for broader code issues or other Go tools. There are no prerequisites, when-not-to-use, or fallback tools mentioned, leaving the agent without context for choosing this tool over siblings.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
go_workC
Manage Go workspaces (go.work files)
| Name | Required | Description | Default |
|---|---|---|---|
| args | No | Additional arguments | |
| command | Yes | Workspace command: init (create), use (add modules), sync (sync deps), edit (edit go.work) | |
| modules | No | Module paths for use command | |
| directory | No | Working directory |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries full burden. The description only says 'Manage Go workspaces', which is vague. It does not disclose side effects (e.g., file modifications), required permissions, or operation specifics beyond what the schema implies.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is very concise (6 words) but lacks structure. It is front-loaded but too terse to be informative. A single sentence about purpose is efficient but does not explore sub-commands or variants.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a tool managing Go workspaces with four parameters and multiple commands, the description is insufficient. It does not explain how commands fit together (e.g., init before use), nor does it cover return behavior or error scenarios. The simplicity of the description fails to match the tool's complexity.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100% with detailed parameter descriptions (e.g., command enum descriptions). The tool description adds a high-level categorization but does not explain parameter relationships or usage order. Baseline 3 is appropriate as schema already provides necessary details.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description 'Manage Go workspaces (go.work files)' clearly states the resource (Go workspaces) and implies management operations. It distinguishes from sibling tools like go_build or go_mod_tidy, as none directly manage go.work files. However, the verb 'manage' is broad and could be more specific.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides no guidance on when to use this tool versus alternatives. It does not mention prerequisites, typical workflow, or exclusions. For a tool with multiple commands (init, use, sync, edit), usage context would be helpful.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
jq_queryA
Process JSON data using jq filter syntax without requiring approval. Perfect for parsing API responses, extracting fields, filtering arrays, and transforming data structures. Supports full jq syntax including pipes, select, map, and reduce operations.
| Name | Required | Description | Default |
|---|---|---|---|
| input | Yes | JSON string or already-parsed object/array | |
| filter | Yes | jq filter expression (e.g., ".[] | .name") | |
| compact | No | Compact output (default: false) | |
| sort_keys | No | Sort object keys (default: false) | |
| raw_output | No | Raw strings without JSON quotes (default: false) |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
It discloses the important behavioral trait that no approval is needed, and mentions full jq syntax support. With no annotations, this is valuable. However, it does not cover error handling or output format details.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
Two concise sentences: first states core function and approval note, second lists use cases and features. No redundant words, front-loaded with key information.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a tool with 5 parameters, no annotations, and no output schema, the description covers the main purpose, common use cases, and the critical 'no approval' trait. It lacks details like default output format, but overall is fairly complete.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The input schema already provides descriptions for all 5 parameters (100% coverage), so the baseline is 3. The tool description adds general usage context but no parameter-specific details beyond what the schema offers.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool processes JSON using jq filter syntax and gives specific use cases. It stands out from sibling tools (mostly linting, building, testing) by focusing on data manipulation.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides clear context for when to use (parsing API responses, extracting fields, etc.) but does not explicitly mention when not to use or suggest alternatives. However, given no similar siblings, it is adequate.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
lint_allC
Run all available linters based on project type
| Name | Required | Description | Default |
|---|---|---|---|
| fix | No | Automatically fix issues where possible | |
| directory | No | Working directory for the lint commands |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries full burden for behavioral disclosure. It only states that linters run, but fails to mention potential side effects like file modifications (via fix), performance impact, or prerequisites (e.g., installed linters). This is insufficient for an agent to understand the tool's behavior.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is very concise, consisting of a single sentence that front-loads the action. However, it could include more contextual information without becoming verbose, so it doesn't earn a perfect score.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the complexity of running all linters, the description is incomplete. It doesn't explain what 'all available linters' means, how project type is detected, or what the output looks like. The lack of an output schema and only 2 parameters does not justify such brevity.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The input schema has 100% description coverage, so the schema already documents both parameters. The description adds no additional meaning beyond the schema, meriting the baseline score of 3.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool runs all available linters based on project type, using a specific verb and resource. It distinguishes from sibling tools like eslint or go_lint by implying an aggregate run, but it lacks specificity about which linters are included or how project type is determined.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides no guidance on when to use this tool versus individual linter tools. It neither suggests ideal scenarios nor warns against misuse, leaving the agent to infer usage from the name alone.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
make_buildC
Run make build command to build the project
| Name | Required | Description | Default |
|---|---|---|---|
| args | No | Additional arguments to pass to make | |
| target | No | Specific make target to run (defaults to "build") | |
| parallel | No | Number of parallel jobs (-j flag) | |
| directory | No | Working directory for the make command |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description must disclose behavioral traits. It only says 'run make build command' without mentioning side effects (e.g., file modification), required permissions, or output. Minimal transparency.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
Single sentence with zero wasted words. All information is front-loaded and concise.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given 4 parameters, no output schema, and many siblings, the description is too minimal. It does not explain the build process, expected outcomes, or parameter interactions. Lacks completeness for effective use.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100%, so baseline is 3. The description does not add any additional meaning or usage hints for the parameters (args, target, parallel, directory). It relies entirely on the schema descriptions.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
Description clearly states the verb 'Run' and resource 'make build command' with the purpose 'to build the project'. It distinguishes from sibling make_* tools focused on cleaning, testing, etc., but does not explicitly differentiate.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
No guidance on when to use this tool versus alternatives like make_clean, make_test, or other language build tools. No context about prerequisites or conditions.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
make_cleanB
Run make clean command to clean build artifacts
| Name | Required | Description | Default |
|---|---|---|---|
| args | No | Additional arguments to pass to make | |
| target | No | Specific make target to run (defaults to "clean") | |
| parallel | No | Number of parallel jobs (-j flag) | |
| directory | No | Working directory for the make command |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description must disclose behavioral traits. It only states the operation without mentioning side effects (e.g., destruction of artifacts), authentication needs, or rate limits.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single concise sentence with no wasted words. It could be slightly more detailed but is appropriately sized for the tool's simplicity.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the low complexity (4 params, no output schema), the description is minimally adequate. It lacks details on return values or error conditions, but the operation is straightforward.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100%, so the baseline is 3. The description does not add extra meaning beyond what the schema already provides for each parameter.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the verb 'run', the resource 'make clean command', and the purpose 'to clean build artifacts'. It distinguishes from sibling tools like make_build and make_test.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides no guidance on when to use this tool versus alternatives, such as make_build or make_lint. No when-to-use or when-not-to-use context is given.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
make_dependC
Run make depend command to install or update dependencies
| Name | Required | Description | Default |
|---|---|---|---|
| args | No | Additional arguments to pass to make | |
| target | No | Specific make target to run (defaults to "depend") | |
| parallel | No | Number of parallel jobs (-j flag) | |
| directory | No | Working directory for the make command |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description must fully disclose behavior, but it only says 'run make depend command' without detailing side effects (e.g., file modifications, environment requirements, idempotency). Critical behavioral traits are omitted.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single, concise sentence with no redundancy. It is efficiently structured and front-loaded, but could be more informative without sacrificing brevity.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool has four parameters, no output schema, and many siblings, the description is insufficient for an agent to fully understand when and how to invoke it. Lacks context about return values, edge cases, and relationship to other make commands.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so the schema defines each parameter. The description adds no extra meaning or context beyond what the schema already provides, earning the baseline score of 3 for minimal added value.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool runs 'make depend' to install or update dependencies, which is a specific verb and resource. However, it does not differentiate from sibling tools like make_build or make_lint, leaving ambiguity about when to use this one over others.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
No explicit guidance on when to use or avoid this tool. It simply describes the action without mentioning alternatives or prerequisites, leaving the agent without criteria for selection among the many make_* siblings.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
make_lintB
Run make lint command to check code style and quality
| Name | Required | Description | Default |
|---|---|---|---|
| args | No | Additional arguments to pass to make | |
| target | No | Specific make target to run (defaults to "lint") | |
| parallel | No | Number of parallel jobs (-j flag) | |
| directory | No | Working directory for the make command |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description should fully disclose behavior. It only says it 'checks code style and quality', implying a read-only operation, but does not explain side effects, output, or error behavior. This is insufficient for a tool with zero annotation support.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single sentence with no fluff. It is concise and directly states the tool's purpose.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool has 4 parameters and no output schema or annotations, the description is too brief. It lacks information about return values, error handling, and practical usage scenarios, making it incomplete for an agent to use effectively.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so the baseline is 3. The description does not add additional meaning beyond what the schema provides for parameters. It mentions 'make lint' but does not explain how parameters like 'args', 'target', 'parallel', or 'directory' alter behavior.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool runs 'make lint' to check code style and quality, which is a specific verb-resource pair. It differentiates from sibling lint tools by focusing on the make-based approach.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
No guidance is provided on when to use this tool versus alternatives like other linters or 'lint_all'. There are no when-to-use or when-not-to-use instructions.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
make_testB
Run make test command to execute project tests
| Name | Required | Description | Default |
|---|---|---|---|
| args | No | Additional arguments to pass to make | |
| target | No | Specific make target to run (defaults to "test") | |
| parallel | No | Number of parallel jobs (-j flag) | |
| directory | No | Working directory for the make command |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations provided; description does not disclose side effects, such as whether it compiles code or modifies the filesystem. The behavior beyond running a command is opaque.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
Single sentence with no wasted words. Front-loaded with the core action. Efficient and clear.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Lacks details about output format, success criteria, or typical use cases. For a test runner, more context (e.g., exit codes, logging) would be expected to ensure correct invocation.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema describes all 4 parameters with individual descriptions. The tool description adds no extra meaning beyond the schema, so baseline 3 is appropriate.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
Description clearly states it runs 'make test' to execute project tests. The verb 'run' and resource 'make test' are specific, and it distinguishes from sibling tools like make_build or make_clean.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
No guidance on when to use this tool vs alternatives like run_tests, go_test, or nodejs_test. Missing context for when not to use or prerequisites.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
markdownlintC
Run markdownlint on markdown files
| Name | Required | Description | Default |
|---|---|---|---|
| fix | No | Automatically fix issues where possible | |
| args | No | Additional arguments to pass to markdownlint | |
| files | No | Specific files to lint (glob patterns supported) | |
| directory | No | Working directory for the lint command |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description must carry the full behavioral burden. It only says 'run markdownlint' without disclosing that the 'fix' parameter can modify files, what output is produced, any required permissions, or side effects. This is insufficient for an agent to understand the tool's impact.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single sentence, which is concise, but it lacks structure and earns its place only by naming the tool. It could be more informative without becoming verbose.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool has 4 parameters, no output schema, and no annotations, the description should provide more context about return values, behavior, or prerequisites. The current text is too minimal for an agent to fully understand how to use the tool correctly.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so the structured schema already documents all parameters. The tool description adds no extra meaning beyond the schema entries (e.g., it doesn't clarify that 'files' support glob patterns, but the schema already includes that). Baseline 3 is appropriate.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the verb 'Run' and resource 'markdownlint on markdown files', which unambiguously identifies the tool's function. However, it does not explicitly distinguish it from sibling tools like 'lint_all' or 'eslint', though the markdown specificity is implicit.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides no guidance on when to use this tool versus alternatives. It does not mention when not to use it or suggest other linters for different file types. The context from sibling names like 'eslint' and 'yamllint' implies scope, but no explicit direction is given.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
nodejs_benchmarkB
Run performance benchmarks with Vitest, benchmark.js, or custom scripts
| Name | Required | Description | Default |
|---|---|---|---|
| args | No | Additional arguments | |
| pattern | No | Benchmark file pattern (default: **/*.bench.{ts,js}) | |
| timeout | No | Command timeout in milliseconds | |
| directory | No | Working directory | |
| iterations | No | Number of iterations |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description bears full responsibility for behavioral disclosure. It only states the action and tools but fails to mention side effects, output format, execution behavior, or dependencies. This is insufficient for a tool that may run arbitrary commands.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single sentence that conveys the essential purpose without any unnecessary words. It is front-loaded and efficient.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the 5 parameters and no output schema, the description should provide more context on return values, result handling, or operational behavior. It fails to explain how benchmarks are run or results presented, leaving significant gaps.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so the schema already documents each parameter. The tool description adds no additional meaning beyond listing the libraries. Baseline of 3 is appropriate.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the verb 'Run' and the resource 'performance benchmarks', and lists specific tools (Vitest, benchmark.js, custom scripts). It distinguishes itself from sibling tools like nodejs_test and nodejs_profile, which focus on testing and profiling respectively.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description implies the tool is for benchmarking but provides no explicit guidance on when to use it over alternatives, such as when to choose benchmarking over testing or profiling. It lacks exclusions or when-not-to-use instructions.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
nodejs_buildB
Run build script with package manager (npm/yarn/pnpm/bun)
| Name | Required | Description | Default |
|---|---|---|---|
| args | No | Additional arguments | |
| watch | No | Watch mode | |
| script | No | Build script name (default: build) | |
| timeout | No | Command timeout in milliseconds | |
| directory | No | Working directory | |
| production | No | Production build |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are present, so the description must carry the burden. It only states the obvious (runs build script) and does not disclose any behavioral traits like side effects, permissions, or environment requirements.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single, front-loaded sentence with no wasted words. It efficiently conveys the core purpose, though it could include more detail without becoming verbose.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
With no output schema and 6 parameters, the description is too sparse. No information on return values, error conditions, or build process details is provided.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
All 6 parameters have descriptions in the schema, so schema coverage is 100%. The description adds no extra meaning beyond the schema, which is acceptable but not helpful. Baseline 3 is appropriate.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description 'Run build script with package manager (npm/yarn/pnpm/bun)' clearly states the action and resource, and distinguishes this tool from sibling tools like nodejs_test or nodejs_lint.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
No guidance on when to use this tool versus alternatives, such as nodejs_build vs make_build or other build methods. No prerequisites or context are provided.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
nodejs_check_typesA
Run TypeScript type checking
| Name | Required | Description | Default |
|---|---|---|---|
| args | No | Additional arguments | |
| noEmit | No | Do not emit compiled files | |
| project | No | Path to tsconfig.json | |
| timeout | No | Command timeout in milliseconds | |
| directory | No | Working directory | |
| incremental | No | Enable incremental compilation |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations provided, so the description carries the burden. It accurately states the tool runs type checking, but doesn't mention if it modifies files, requires a tsconfig, or what output to expect. It is not misleading but could be more detailed.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
Single sentence with no unnecessary words. Perfectly concise.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
With 6 parameters and no output schema, the description is minimal. It doesn't explain return values or behavior details, such as whether it only checks or also compiles. More context would improve completeness.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Input schema covers all 6 parameters with descriptions, so the description adds no additional parameter meaning. Baseline 3 is appropriate.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description 'Run TypeScript type checking' uses a specific verb and resource, clearly distinguishing it from sibling tools like nodejs_lint or python_check_types.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
No guidance on when to use or when not to use this tool vs alternatives. Given many sibling tools, explicit usage context would be beneficial.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
nodejs_compatibilityB
Check Node.js version compatibility and validate against package.json engines field
| Name | Required | Description | Default |
|---|---|---|---|
| checkDeps | No | Check dependency compatibility | |
| directory | No | Working directory | |
| nodeVersion | No | Target Node.js version (e.g., '18.0.0') | |
| checkEngines | No | Check package.json engines field |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, and the description does not disclose behavioral traits such as whether the tool is read-only, modifies files, or requires network access. For a validation tool, it is unclear if it writes to disk or only reads.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single, front-loaded sentence that efficiently communicates the tool's core function. Every word is necessary, with no fluff.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool has 4 parameters and no output schema, the description is adequate but lacks detail on return format, error handling, or the relationship between parameters. It is sufficient for a simple validation tool but leaves room for ambiguity.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so the parameters are already well-documented in the schema. The description adds minimal value beyond summarizing the tool's purpose, but it does align with the 'checkEngines' parameter.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool's function: checking Node.js version compatibility and validating against the package.json engines field. It uses specific verbs and resources, distinguishing it from siblings like 'nodejs_version' which appears to be about retrieving the current version.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides no guidance on when to use this tool versus alternatives like 'nodejs_project_info' or 'nodejs_test'. It does not include context about prerequisites, expected project state, or cases where the tool should be avoided.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
nodejs_formatB
Format code with Prettier
| Name | Required | Description | Default |
|---|---|---|---|
| args | No | Additional arguments | |
| check | No | Check formatting without writing | |
| files | No | Specific files/patterns to format | |
| write | No | Write formatted files | |
| directory | No | Working directory |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description must fully disclose behavior. It only says 'format code' but does not explain default behavior (e.g., whether it writes files or checks by default), side effects, or required permissions. The schema hints at write/check flags, but the description does not clarify their interaction.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single, concise sentence that is front-loaded with the essential verb and resource. It contains no unnecessary words or details.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given five parameters, no output schema, and no annotations, the description is too minimal. It fails to explain the tool's typical workflow, defaults, or how to combine parameters (e.g., check vs write). A complete description for a formatting tool should clarify these behavioral aspects.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Although schema description coverage is 100%, the tool description adds no value beyond the parameter names. It does not explain the purpose or typical usage of parameters like 'args', 'check', 'files', 'write', or 'directory' beyond what the schema already provides.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the verb 'format' and the resource 'code with Prettier'. It distinguishes this tool from sibling tools like eslint (linting) and yamllint (YAML linting) by specifying the specific formatter tool.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
No explicit guidance on when to use this tool versus alternatives. It does not mention scenarios where eslint or other formatters might be more appropriate, nor does it provide when-not-to-use or prerequisites.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
nodejs_install_depsB
Install Node.js dependencies with npm, yarn, pnpm, or bun
| Name | Required | Description | Default |
|---|---|---|---|
| args | No | Additional arguments | |
| frozen | No | Use frozen lockfile (no updates) | |
| timeout | No | Command timeout in milliseconds | |
| directory | No | Working directory | |
| production | No | Install production dependencies only | |
| packageManager | No | Package manager to use (auto-detected by default) |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description must cover behavioral traits. It does not disclose what the tool does beyond installing dependencies (e.g., failure handling, destructive actions, required files, or lockfile updates). This leaves the agent uncertain about important behaviors.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single, front-loaded sentence with no wasted words. It efficiently conveys the core action and supported package managers.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool's complexity (6 parameters, no output schema, no annotations), the description is incomplete. It lacks context on return values, error conditions, prerequisites, and operational details, leaving significant gaps for the agent.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100%, so baseline is 3. The description adds no additional meaning beyond the schema; it does not explain the purpose of parameters like 'frozen' or 'timeout' beyond their names.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool's purpose: 'Install Node.js dependencies with npm, yarn, pnpm, or bun'. It uses a specific verb ('install') and resource ('dependencies'), and the mention of multiple package managers distinguishes it from sibling tools like nodejs_build or nodejs_test.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description implies usage for installing dependencies but provides no explicit guidance on when to use it, when not to, or how it differs from alternatives like nodejs_update_deps. It lacks context such as prerequisites or lockfile behavior.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
nodejs_lintC
Run ESLint on Node.js/TypeScript code
| Name | Required | Description | Default |
|---|---|---|---|
| fix | No | Auto-fix issues | |
| args | No | Additional arguments | |
| files | No | Specific files/patterns to lint | |
| format | No | Output format (stylish, json, compact, etc.) | |
| timeout | No | Command timeout in milliseconds | |
| directory | No | Working directory |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden of disclosing behavioral traits. It fails to mention the auto-fix effect, return format, error handling, or permissions needed. Users are left guessing about side effects and output.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is extremely concise—a single sentence—which is efficient. However, it omits essential details, so it sacrifices informativeness for brevity. Still, it's well-structured and front-loaded.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the 6 parameters and no output schema, the description is somewhat complete for a straightforward lint tool, but lacks information about what the output looks like (e.g., exit codes, formatted results) and how to interpret results. It meets minimum viability but has clear gaps.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The input schema already describes all 6 parameters with 100% coverage, so the description adds no additional value. The baseline score of 3 is appropriate since the schema is complete, but the description could have provided context like default values or examples.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states it runs ESLint on Node.js/TypeScript code, specifying the tool and target language. However, it does not distinguish from the sibling tool 'eslint', which likely does the same but generically. A brief note on how they differ would clarify purpose.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
No guidance on when to use this tool versus alternatives like 'eslint', 'lint_all', or 'make_lint'. The description does not mention prerequisites, typical use cases, or when not to use it, leaving the agent to infer from the name alone.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
nodejs_package_infoC
Fetch package information from npm registry including latest versions, compatibility, and peer dependencies to help avoid audit issues
| Name | Required | Description | Default |
|---|---|---|---|
| packageName | Yes | Package name to look up (e.g., 'lru-cache', '@types/node') | |
| versionLimit | No | Maximum number of recent versions to include (default: 5, shows latest first) | |
| includeDeprecations | No | Include deprecation warnings for older versions (default: true) |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, and the description does not disclose behavioral traits such as read-only nature, authentication needs, rate limits, or error handling. This is a significant gap for a tool that makes external network calls.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single, concise sentence that front-loads the purpose. It is efficient but lacks structure like bullet points or examples.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
The description provides a high-level overview of output contents but does not specify the response format or structure. Given there is no output schema, more detail on what exactly is returned would be helpful for an AI agent.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100%, so parameters are well-described in the schema. The description adds context about what the returned info includes (versions, compatibility, peer dependencies), which slightly enhances understanding but does not detail parameter behavior beyond the schema.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states it fetches npm package info including versions, compatibility, and peer dependencies, with a purpose to avoid audit issues. However, it does not differentiate from sibling tools like 'nodejs_compatibility' which may overlap.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
No guidance is provided on when to use this tool versus alternatives. The description implies it's for fetching package info, but doesn't mention when not to use it or suggest other tools.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
nodejs_profileC
Profile Node.js application performance using built-in Node.js profiler
| Name | Required | Description | Default |
|---|---|---|---|
| args | No | Additional arguments | |
| script | No | Script to profile (default: start) | |
| timeout | No | Command timeout in milliseconds | |
| duration | No | Profile duration in seconds | |
| directory | No | Working directory | |
| outputDir | No | Output directory for profile files | |
| cpuProfile | No | Generate CPU profile | |
| heapProfile | No | Generate heap profile |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description must fully convey behavioral traits. It mentions 'built-in Node.js profiler' but fails to disclose performance impacts, resource usage, or whether the tool is read-only. The mutation nature of profiling (creating files) is implied but not explicitly stated.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
A single concise sentence with no fluff. However, it could be more informative without being verbose. The structure is front-loaded but lacks additional details.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a profiling tool with no output schema and no annotations, the description omits important context such as output file details, interpretation of results, or any side effects. It is insufficient for an agent to fully understand the tool's behavior.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100% with all parameters described in schema. The description does not add extra meaning beyond the schema parameter descriptions. Baseline 3 is appropriate.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description uses the verb 'Profile' and resource 'Node.js application performance', clearly indicating the tool's function. It distinguishes from sibling tools like nodejs_benchmark, though it could be more specific about profiling types (e.g., CPU, heap) which are only apparent from the schema.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
No guidance is provided on when to use this tool versus alternatives such as nodejs_benchmark or other profiling tools. The description neither suggests prerequisites nor scenarios for profiling.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
nodejs_project_infoC
Get comprehensive Node.js project information (package.json, dependencies, frameworks)
| Name | Required | Description | Default |
|---|---|---|---|
| directory | No | Working directory to analyze |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are present, so the description must fully disclose behavioral traits. It states only that the tool 'gets' information, but does not clarify whether it modifies files, runs external commands, or has side effects. Critical details like read-only nature or error handling are omitted.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single, front-loaded sentence that efficiently conveys the tool's purpose. It is concise with no wasted words. A slightly more structured presentation could improve clarity, but it remains effective.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the large number of sibling Node.js tools and the absence of an output schema, the description is insufficiently complete. It does not explain what 'comprehensive' entails, the return format, or how it relates to other analysis tools. More context is needed for an agent to use it correctly.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100% and the parameter description ('Working directory to analyze') is clear. The tool description adds the context of Node.js projects but does not provide additional meaning beyond the schema. Baseline score of 3 is appropriate.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the verb 'Get' and resource 'comprehensive Node.js project information', listing specific items (package.json, dependencies, frameworks). However, it does not explicitly differentiate from the similar sibling tool 'nodejs_package_info', which could cause confusion. Score is high but not maximum due to missing sibling distinction.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
No guidance is provided on when to use this tool versus alternatives like 'nodejs_package_info' or 'detect_project'. The description lacks any context about prerequisites, appropriate scenarios, or exclusions, leaving the agent without decision support.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
nodejs_scriptsC
Run or list npm scripts from package.json with caching
| Name | Required | Description | Default |
|---|---|---|---|
| args | No | Additional arguments | |
| list | No | List available scripts | |
| script | No | Script name to run | |
| timeout | No | Command timeout in milliseconds | |
| directory | No | Working directory |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations provided, and the description does not disclose that running scripts can execute arbitrary code with side effects. The mention of 'caching' is ambiguous and not elaborated, leaving behavioral traits mostly hidden.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single sentence, but it omits important details. It is concise in length but insufficiently informative, earning a middle score.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given 5 parameters and no output schema or annotations, the description is too brief to guide effective use. It doesn't specify which parameters are required, how caching works, or constraints like directory existence.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100%, so baseline is 3. The description adds no information beyond the parameter names and descriptions already in the schema. No explanation of how parameters interact or when each is needed.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool runs or lists npm scripts with caching, distinguishing it from more specific nodejs tools. However, the caching aspect is vague without explanation, so a 4 is appropriate.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
No explicit guidance on when to use this tool versus siblings like nodejs_test, nodejs_build, or nodejs_lint. The description lacks context for choosing this generic script runner over specialized tools.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
nodejs_securityB
Run security audit with npm/yarn audit to detect vulnerabilities
| Name | Required | Description | Default |
|---|---|---|---|
| fix | No | Automatically fix vulnerabilities | |
| args | No | Additional arguments | |
| audit | No | Run audit (default: true) | |
| timeout | No | Command timeout in milliseconds | |
| directory | No | Working directory | |
| production | No | Only check production dependencies |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description must disclose behavioral traits. It does not mention side effects (e.g., potential file modifications when using the fix parameter), network requirements, or whether the tool is read-only. The fix parameter is described in the schema but its behavioral impact is not explained.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single, clear sentence with no wasted words. It is concise but might benefit from a bit more context, such as what the output looks like.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool has 6 parameters and no output schema, the description should explain what results are returned (e.g., vulnerability list, summary). It does not, leaving the agent uncertain about the tool's output.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100% with descriptions for all parameters. The description adds no further meaning beyond the schema's already clear parameter definitions. Baseline score of 3 is appropriate.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description explicitly states the tool's purpose: 'Run security audit with npm/yarn audit to detect vulnerabilities.' It uses a specific verb and resource, clearly distinguishing it from sibling tools like nodejs_lint or nodejs_build.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
No guidance is provided on when to use this tool versus alternatives. There is no mention of prerequisites, context, or when not to use it. The description only states the basic action.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
nodejs_testB
Run Node.js tests with Jest, Vitest, or Mocha
| Name | Required | Description | Default |
|---|---|---|---|
| args | No | Additional arguments | |
| watch | No | Run tests in watch mode | |
| timeout | No | Command timeout in milliseconds | |
| verbose | No | Enable verbose output | |
| coverage | No | Enable coverage reporting | |
| directory | No | Working directory | |
| testPattern | No | Test file pattern (e.g., "**/*.test.ts") | |
| testFramework | No | Test framework to use (auto-detected by default) |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description must disclose behavioral traits. It only states 'run tests', omitting side effects (e.g., file creation, required project state) or error conditions. Watch mode, coverage, and timeout are in the schema but not described in behavioral terms.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single, clear sentence with no wasted words. However, it could include a brief note on auto-detection or common usage without increasing length significantly.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given 8 parameters and many sibling tools (including run_tests), the description is too sparse. It lacks information on default behavior, return values, or how it interacts with other Node.js tools, leaving the agent without full context.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so the baseline is 3. The description does not add any semantic context beyond what the schema already provides (e.g., frameworks are listed in both).
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool runs Node.js tests with specific frameworks (Jest, Vitest, Mocha), making it distinct from sibling tools like nodejs_lint or nodejs_build.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description implies when to use the tool (running Node.js tests) but does not specify when to prefer it over similar tools like run_tests or other test runners, nor does it provide exclusions or alternatives.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
nodejs_update_depsC
Update Node.js dependencies with support for different package managers
| Name | Required | Description | Default |
|---|---|---|---|
| dev | No | Update devDependencies only | |
| args | No | Additional arguments | |
| latest | No | Update to latest versions (ignore semver) | |
| timeout | No | Command timeout in milliseconds | |
| packages | No | Specific packages to update | |
| directory | No | Working directory | |
| interactive | No | Interactive update mode |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations exist, so the description bears full responsibility. It only says 'Update', omitting behavioral traits like whether changes are destructive, if lockfiles are generated, or authorization needs. This leaves the agent uninformed about side effects.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single concise sentence with no fluff. It front-loads the core action. However, it could integrate more guidance without becoming verbose.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool's complexity (7 parameters, no output schema), the description lacks details on return values, effects on files, prerequisites, and error handling. It is insufficient for an agent to fully understand the tool's behavior.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100%, so the schema already documents all 7 parameters. The description adds the context of supporting different package managers, but does not explain how that maps to parameters (e.g., which param selects the manager). Baseline 3 is appropriate.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states 'Update Node.js dependencies', which is a specific verb and resource. It adds 'with support for different package managers', providing context. However, it does not differentiate from sibling tool 'nodejs_install_deps', which could cause ambiguity.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description offers no guidance on when to use this tool vs alternatives like 'nodejs_install_deps' or 'python_update_deps'. It implies support for multiple package managers but does not explain scenarios or exclusions.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
nodejs_versionA
Get version information for Node.js tools (node, npm, yarn, pnpm, bun) with caching
| Name | Required | Description | Default |
|---|---|---|---|
| tool | No | Tool to check version for (default: all) | |
| directory | No | Working directory |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations provided, so description carries full burden. Mentions 'with caching' which is a positive behavioral disclosure, but lacks details on side effects (likely none) or output format. For a read-only tool, this is adequate but not exceptional.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
Single sentence that is front-loaded with the essential information. No wasted words.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
With 2 parameters (none required) and no output schema, the description is minimal. It explains the purpose but could mention the return format (version strings) or that the cache reduces repeated lookups. Without output schema, more context would help.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so baseline is 3. The description adds the caching behavior but does not elaborate on parameter usage beyond what is in the schema. The default tool 'all' is implied by the enum but not explicitly stated.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
Description clearly states the verb 'Get' and resource 'version information for Node.js tools' with explicit list of tools (node, npm, yarn, pnpm, bun). It distinguishes from sibling tools like nodejs_install_deps or nodejs_test.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
No explicit guidance on when to use this tool versus alternatives. The description does not mention prerequisites or typical scenarios (e.g., check versions before running other tools).
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
onboarding_wizardA
Run intelligent zero-configuration onboarding wizard to detect project type, generate configuration, verify tools, and validate setup
| Name | Required | Description | Default |
|---|---|---|---|
| dryRun | No | Preview changes without writing files (default: false) | |
| directory | No | Working directory to analyze (defaults to current directory) | |
| autoInstall | No | Automatically install missing tools (default: false) | |
| interactive | No | Enable interactive prompts for customization (default: false) | |
| validateSetup | No | Run validation after setup (default: true) | |
| backupExisting | No | Backup existing configuration before overwriting (default: true) | |
| generateConfig | No | Generate .mcp-devtools.json configuration file (default: true) | |
| skipToolVerification | No | Skip tool installation checks (default: false) |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, and the description lacks explicit disclosure of potential side effects like file writes (despite backupExisting parameter) and tool installation. It briefly mentions generation and verification but does not address destructive behavior or system modifications.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
Single sentence of 18 words efficiently conveys the core purpose. Could be more front-loaded, but no waste exists.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Despite good parameter docs, the description omits expected outcomes, safety warnings, and whether the tool is interactive. For a complex setup tool with 8 parameters and no output schema, more behavioral context is needed.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema describes all 8 parameters with 100% coverage, so the description adds no extra parameter-level meaning. Baseline 3 is appropriate.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool runs an onboarding wizard that detects project type, generates configuration, verifies tools, and validates setup. It distinguishes from sibling tools like detect_project, generate_config, and validate_setup by combining these steps.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description implies the tool is for first-time project setup but provides no explicit guidance on when to use it versus individual sibling tools, nor does it mention when not to use it.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
project_statusC
Get overall project health and available make targets
| Name | Required | Description | Default |
|---|---|---|---|
| directory | No | Working directory to analyze |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries full burden for behavioral disclosure. It fails to indicate whether the tool is read-only, requires special permissions, or has side effects. The simple statement 'Get overall project health' implies a read operation but does not confirm safety or performance characteristics.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single concise sentence that clearly communicates the tool's core function. It avoids unnecessary words and is front-loaded with the main action. It could be slightly improved by adding a brief usage note.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the simple tool structure (1 optional parameter, no output schema, no annotations), the description provides a basic understanding. However, it lacks details such as what constitutes 'project health', the format of make targets returned, and whether it covers all targets or just common ones.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100% for the single parameter 'directory', so the baseline is 3. The description does not add any new information about the parameter, such as expected format, default behavior, or the impact of omitting it. It merely restates the tool's function.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool's purpose: retrieving overall project health and available make targets. It identifies the verb 'Get' and the specific resources. However, it does not explicitly differentiate from sibling tools like 'make_build' or 'test_status' that might offer more specific health or target information.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides no guidance on when to use this tool versus alternatives. There is no mention of context, prerequisites, or exclusions. Users rely solely on the name and brief description to infer suitable scenarios.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
python_benchmarkC
Run performance benchmarks using pytest-benchmark with statistical analysis
| Name | Required | Description | Default |
|---|---|---|---|
| args | No | Additional arguments | |
| json | No | Output results as JSON | |
| save | No | Save results to baseline | |
| warmup | No | Number of warmup iterations | |
| compare | No | Compare against saved baseline | |
| timeout | No | Command timeout in milliseconds | |
| directory | No | Working directory | |
| benchmarks | No | Benchmark pattern to run (e.g., test_benchmark_) |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations exist, so the description carries full burden. It only states the tool runs benchmarks but does not disclose whether it modifies state, requires authentication, or what happens with saved baselines. The behavioral impact is unclear.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is extremely concise (one sentence, 8 words) and front-loaded with the key purpose. It earns its place without redundancy, though it could benefit from slightly more structure.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
With 8 parameters and no output schema, the description is insufficient for an agent to use the tool effectively. It lacks explanation of output format, parameter relationships, and typical usage patterns, leaving significant gaps.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100%, so all parameters have descriptions. The description adds no additional meaning beyond the schema. It neither clarifies parameter interactions nor provides examples, resulting in a baseline score of 3.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states it runs performance benchmarks using pytest-benchmark, specifying the tool and framework. It distinguishes from siblings like python_test and nodejs_benchmark by language and purpose. However, it could be more specific about what 'statistical analysis' entails.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
No usage guidelines are provided. The description does not indicate when to use this tool versus alternatives like python_test or python_profile, nor does it mention any prerequisites or constraints.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
python_buildB
Build Python packages (wheels and sdists) using modern python -m build
| Name | Required | Description | Default |
|---|---|---|---|
| args | No | Additional arguments | |
| sdist | No | Build source distribution (default: true) | |
| wheel | No | Build wheel (default: true) | |
| outdir | No | Output directory (default: dist/) | |
| timeout | No | Command timeout in milliseconds | |
| directory | No | Working directory | |
| noBuildIsolation | No | Disable build isolation | |
| skipDependencyCheck | No | Skip dependency checks |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries full responsibility. It only says 'build' without disclosing behavioral traits like output creation, error handling, permissions, or side effects. This is insufficient.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single, front-loaded sentence that is concise and to the point. It could be slightly expanded with more context without becoming verbose.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
With 8 parameters fully described in the schema and no output schema, the description minimally covers the tool's behavior. It mentions the output types (wheels/sdists) but does not explain return values or output location in detail.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema_description_coverage is 100%, and the description adds no extra meaning beyond what the schema already provides. Baseline is 3.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the verb 'Build' and the resource 'Python packages', specifying 'wheels and sdists' and the method 'using modern python -m build'. This clearly distinguishes it from sibling tools like python_lint or python_test.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
No guidance is provided on when to use this tool versus alternatives. With 64 sibling tools, the description lacks any differentiation or context about typical use cases.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
python_check_typesB
Check Python types using pyright with watch and verbose mode support
| Name | Required | Description | Default |
|---|---|---|---|
| args | No | Additional arguments | |
| watch | No | Watch mode | |
| timeout | No | Command timeout in milliseconds | |
| verbose | No | Enable verbose output | |
| directory | No | Working directory |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description should reveal behavioral traits. It only mentions support for watch and verbose modes but doesn't explain their effects (e.g., watch mode continuously runs). It doesn't indicate whether the tool is destructive or requires certain dependencies.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is extremely concise and front-loaded with the key action. However, it may be too brief to provide sufficient context for an AI agent, but within the scoring of conciseness, it is efficient.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
The description is minimal and does not provide contextual completeness for a tool with 5 parameters and no annotations. It lacks information about prerequisites (pyright installation), default behavior, or how it fits into a workflow with sibling tools like python_lint.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The input schema already describes all parameters (100% coverage). The description only reiterates the existence of watch and verbose modes but adds no additional semantic detail beyond the schema, thus meeting the baseline.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool's function: checking Python types with pyright, and mentions specific modes (watch, verbose). It differentiates from sibling tools like python_lint which focuses on linting.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides no guidance on when to use this tool versus sibling tools such as python_lint or python_test. It does not mention prerequisites, limitations, or appropriate contexts.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
python_compatibilityB
Check Python version compatibility using vermin and suggest syntax upgrades with pyupgrade
| Name | Required | Description | Default |
|---|---|---|---|
| args | No | Additional arguments | |
| files | No | Specific files to check | |
| suggest | No | Suggest syntax upgrades | |
| timeout | No | Command timeout in milliseconds | |
| directory | No | Working directory | |
| targetVersion | No | Target Python version (e.g., "3.9") |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are present, so the description must disclose behavior. It does not mention side effects, required installations, or limitations (e.g., vermin/pyupgrade must be installed, behavior when suggest is false). The behavioral disclosure is minimal.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single sentence that efficiently conveys the core actions. It is front-loaded with the key verbs and resources, with no extraneous words.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool has 6 parameters, no output schema, and no annotations, the description is insufficient. It does not explain typical usage patterns, return format, error handling, or that external tools (vermin, pyupgrade) must be present.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so the baseline is 3. The description adds no additional meaning beyond the schema parameters. It does not explain how parameters like targetVersion interact with suggest or files.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool's purpose: check Python version compatibility using vermin and suggest syntax upgrades with pyupgrade. It uses a specific verb-resource pair and distinguishes from sibling Python tools like python_lint or python_test.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
No guidance is provided on when to use this tool versus alternatives, prerequisites, or when not to use it. The description lacks context for selecting among sibling tools.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
python_formatB
Format Python code using ruff format with check mode support
| Name | Required | Description | Default |
|---|---|---|---|
| args | No | Additional arguments | |
| check | No | Check without modifying files | |
| files | No | Specific files to format | |
| timeout | No | Command timeout in milliseconds | |
| directory | No | Working directory |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
In the absence of annotations, the description partially discloses behavior by mentioning 'check mode support', indicating that it can check without modifying. However, it does not disclose that it modifies files by default, or other behaviors like return format or side effects.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single concise sentence that covers the core functionality. It is front-loaded and efficient, though a second sentence on usage could improve completeness without harming conciseness.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a 5-parameter tool with no output schema and no annotations, the description is minimally sufficient. It lacks details on return values, default behavior, and required environment, which are important for effective use.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100%, so the schema already documents all parameters. The description adds no extra meaning beyond echoing the 'check' parameter. Baseline of 3 is appropriate.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly identifies the tool's purpose: formatting Python code using ruff format, with check mode support. It distinguishes from siblings like python_lint by focusing on formatting, though it could benefit from explicitly contrasting with linting tools.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
No guidance on when to use this tool versus alternatives (e.g., python_lint for linting). No conditions, prerequisites, or exclusions are mentioned.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
python_install_depsB
Install Python dependencies using uv, poetry, pipenv, or pip with package manager auto-detection
| Name | Required | Description | Default |
|---|---|---|---|
| dev | No | Install development dependencies too | |
| args | No | Additional arguments | |
| timeout | No | Command timeout in milliseconds | |
| directory | No | Working directory | |
| packageManager | No | Package manager to use (auto-detected by default) |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries full burden for behavioral disclosure. It reveals the tool installs dependencies and auto-detects package managers, but omits details on side effects (e.g., modifying virtual environments), error behavior, or requirements like a lock file. Given it's a mutation tool, more context is needed.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
A single, concise sentence that front-loads the action and key details (package managers, auto-detection). Every word earns its place with no redundancy.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
With 5 parameters, no output schema, and no annotations, the description is brief but covers the core purpose. The schema handles parameter details adequately. However, for a tool that modifies environment, additional context on safety or expected outcomes would improve completeness. It is minimally sufficient.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100% with adequate descriptions for all 5 parameters. The description adds the 'auto-detection' context for packageManager and mentions the supported tools, but these are already in the enum. The description does not significantly enhance understanding beyond the schema, so baseline 3 is appropriate.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the verb 'Install', the resource 'Python dependencies', and specifies the supported package managers (uv, poetry, pipenv, pip) with auto-detection. This distinguishes it from sibling tools like python_build or python_test.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides no explicit guidance on when to use this tool versus alternatives. There is no mention of prerequisites, when not to use it, or how to choose between package managers beyond the 'auto' option. The context of sibling tools suggests it's for installing dependencies, but no direct guidelines are given.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
python_lintA
Lint Python code using ruff check with auto-fix support
| Name | Required | Description | Default |
|---|---|---|---|
| fix | No | Automatically fix issues | |
| args | No | Additional arguments | |
| check | No | Check only, don't modify files | |
| files | No | Specific files to lint/format | |
| timeout | No | Command timeout in milliseconds | |
| directory | No | Working directory |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries the burden of behavioral disclosure. It mentions auto-fix support, hinting at file modification, but does not describe return values, error behavior, or that it runs a specific command (ruff). The schema covers some aspects via parameters, but overall transparency is minimal.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single, efficient sentence with no wasted words. It is front-loaded with the core purpose.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the lack of output schema and annotations, the description provides the essential purpose but omits details about the linting output, typical usage patterns, and whether it modifies files persistently. For a straightforward tool, it is adequate but not comprehensive.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so the schema already documents all parameters. The description adds only 'auto-fix support', which overlaps with the 'fix' parameter description. Baseline 3 is appropriate as the description does not significantly enhance parameter understanding.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool lints Python code using ruff and includes auto-fix support. It is specific and distinguishes from sibling lint tools for other languages (e.g., eslint, yamllint) and other Python tools (e.g., python_format, python_check_types).
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
No explicit guidance is provided on when to use this tool versus alternatives. The name and description imply Python linting, but there is no mention of when not to use it or comparison to other lint tools like staticcheck or lint_all.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
python_profileB
Profile Python code performance using cProfile, py-spy, or memray
| Name | Required | Description | Default |
|---|---|---|---|
| args | No | Additional arguments | |
| topN | No | Show top N functions (default: 20) | |
| format | No | Output format (default: text) | |
| command | Yes | Python script to profile | |
| timeout | No | Command timeout in milliseconds | |
| profiler | No | Profiler to use (default: cprofile) | |
| directory | No | Working directory | |
| outputFile | No | Save profile to file |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, and the description fails to disclose behavioral traits like that the tool executes scripts (potential side effects), default profiler (cprofile from schema), or that output depends on format and outputFile parameters.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
Single sentence of 7 words clearly captures the tool's core purpose. No extraneous information, front-loaded with action verb and resource.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
With 8 parameters, no output schema, and no annotations, the description is too minimal. It does not explain what profiling entails, expected output, or how to interpret results, leaving the agent underinformed.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100%, so the baseline is 3. The description adds no additional meaning beyond what the schema already provides for parameters like command, profiler, format, etc.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool profiles Python code performance using three specific profilers, distinguishing it from siblings like python_benchmark which measure throughput rather than detailed performance analysis.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides no guidance on when to use this tool versus alternatives such as python_benchmark or other profiling approaches. The agent receives no context on selection criteria or prerequisites.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
python_project_infoA
Analyze Python project configuration, dependencies, and structure (pyproject.toml, setup.py, requirements.txt detection with caching)
| Name | Required | Description | Default |
|---|---|---|---|
| directory | No | Working directory for the command |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the full burden. It mentions 'detection with caching,' which adds behavioral info, but does not disclose whether the tool modifies files, requires internet, or any side effects. It likely performs a read-only analysis, but this is not explicit.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single, well-structured sentence that front-loads the purpose and includes specific details in parentheses. No wasted words, and every part adds value.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
With no output schema and no annotations, the description should provide more context about what the tool returns (e.g., JSON structure, output format). While it covers the detection scope, it lacks clarity on how to interpret the results, leaving the agent partially uninformed.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100% via the 'directory' parameter description 'Working directory for the command.' The tool description adds context about Python analysis but does not elaborate on the parameter beyond the schema, which already fully describes it.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states 'Analyze Python project configuration, dependencies, and structure' and specifies the detected files (pyproject.toml, setup.py, requirements.txt). This distinguishes it from sibling tools like nodejs_project_info or go_project_info, which target other languages.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description implies the tool is for Python projects but does not explicitly state when to use it over alternatives like detect_project or project_status. No when-not or exclusion criteria are given.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
python_securityA
Scan for known vulnerabilities using bandit (code issues) and pip-audit (dependencies)
| Name | Required | Description | Default |
|---|---|---|---|
| fix | No | Fix vulnerabilities automatically | |
| args | No | Additional arguments | |
| tool | No | Security tool to use (default: both) | |
| format | No | Output format (default: text) | |
| timeout | No | Command timeout in milliseconds | |
| severity | No | Minimum severity level (default: all) | |
| directory | No | Working directory |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description bears the full burden. It discloses the scanning operation (read-only), but does not describe side effects, permissions needed, or whether any destructive actions occur (e.g., with 'fix' parameter). It mentions the two sub-tools but lacks deeper behavioral context like order of execution or error handling.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single, front-loaded sentence that efficiently communicates the tool's purpose. Every word adds value; no unnecessary fluff or repetition.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Despite 7 parameters and no output schema, the description is very brief. It does not explain how bandit and pip-audit interact, the effect of 'fix', how severity filtering works, or what output formats entail. Important context is missing for effective tool invocation.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so the parameters are already documented. The description does not add additional meaning to parameters like 'fix', 'severity', or 'format' beyond the schema; it only provides a high-level purpose. Baseline of 3 is appropriate since schema carries the detail.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool scans for known vulnerabilities using bandit (code issues) and pip-audit (dependencies). It specifies the verb (scan), resource (vulnerabilities), and tools used, distinguishing it from siblings like nodejs_security.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
Usage is implied by the tool name 'python_security' and the specific tools mentioned, but there is no explicit guidance on when to use this tool versus alternatives like nodejs_security or other lint tools. No when-not-to-use or alternative mentions.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
python_testA
Run Python tests using pytest with coverage reporting and test selection
| Name | Required | Description | Default |
|---|---|---|---|
| args | No | Additional arguments | |
| markers | No | Run tests matching given mark expression (-m) | |
| pattern | No | Test file pattern to match using -k flag (e.g., test_foo) | |
| timeout | No | Command timeout in milliseconds | |
| verbose | No | Enable verbose output | |
| coverage | No | Enable coverage reporting | |
| testPath | No | Specific test file or directory to run | |
| directory | No | Working directory for the command |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations exist, so description carries full burden. It mentions coverage reporting and test selection but fails to describe behavior like exit codes, side effects (e.g., file generation), or error handling. The description provides basic behavioral intent but lacks depth.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
Single sentence efficiently conveys purpose and key features. It is front-loaded. Could be structured with bullet points for clarity, but current length is appropriate.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
With 8 parameters and no output schema or annotations, the description is too brief. It covers the main purpose but omits details on return values, error handling, or integration with other tools (e.g., how coverage reports are handled). Adequate but not comprehensive.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100%, so baseline is 3. The description adds no extra detail beyond summarizing features that map to parameters (coverage, markers). No elaboration on parameter usage or defaults beyond schema.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the verb (Run), resource (Python tests), and tool (pytest) with specific features (coverage reporting, test selection). It distinguishes from siblings like nodejs_test and go_test by specifying Python and pytest.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description implicitly indicates use for Python pytest tests, but lacks explicit guidance on when to use this tool over alternatives like run_tests or when not to use it. No exclusions or alternatives mentioned.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
python_update_depsC
Check for outdated packages and update dependencies safely with compatibility checking
| Name | Required | Description | Default |
|---|---|---|---|
| args | No | Additional arguments | |
| mode | No | Update mode (default: check) | |
| dryRun | No | Dry run mode | |
| timeout | No | Command timeout in milliseconds | |
| packages | No | Specific packages to update | |
| directory | No | Working directory | |
| interactive | No | Interactive mode |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description should disclose side effects and behavioral details. It only mentions 'safely with compatibility checking' without explaining what compatibility checking entails or what files are modified. Lacks transparency on destructive potential or safety guarantees.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single 14-word sentence, highly concise and front-loaded with the core action. No unnecessary words.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given 7 optional parameters, no output schema, and no annotations, the description is insufficiently detailed. It does not explain what happens in different modes, file modifications, or how compatibility is ensured.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so baseline is 3. The description adds no additional parameter information beyond what the schema provides.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool checks and updates Python dependencies safely with compatibility checking. It distinguishes from siblings like 'nodejs_update_deps' by mentioning Python context, but does not explicitly differentiate from other Python tools like 'python_install_deps' or 'python_compatibility'.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description does not provide guidance on when to use this tool vs alternatives. No context on when to choose check vs update modes, or what distinguishes it from other dependency management tools.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
python_venvB
Manage Python virtual environments (create, delete, info, list packages)
| Name | Required | Description | Default |
|---|---|---|---|
| args | No | Additional arguments | |
| clear | No | Delete venv contents if it exists | |
| action | No | Virtual environment action (default: info) | |
| python | No | Python interpreter to use | |
| timeout | No | Command timeout in milliseconds | |
| venvPath | No | Path to virtual environment (default: .venv) | |
| directory | No | Working directory | |
| systemSitePackages | No | Give access to system site-packages |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description should disclose behavioral traits. It only lists actions without explaining side effects (e.g., create impacts filesystem, delete removes directory). The 'clear' parameter hints at destruction but is not described in the description.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single concise sentence listing actions, which is efficient. However, it could be improved by front-loading the core purpose more structurally, e.g., separating action descriptions.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given 8 parameters and no output schema, the description is too brief. It does not explain return values for 'info' or 'list', nor how to use parameters like 'venvPath' or 'systemSitePackages' with actions. A more detailed description would be beneficial.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so the baseline is 3. The description does not add meaning beyond the schema; it merely summarizes the actions. For example, it doesn't explain how 'args' or 'python' relate to actions.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool manages Python virtual environments and lists the specific actions (create, delete, info, list packages), using a specific verb and resource. It distinguishes itself from sibling tools like python_install_deps or python_build as it focuses on venv management.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
No guidance is provided on when to use this tool versus alternatives (e.g., using system python or other sibling tools). There is no mention of prerequisites or context for any action.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
python_versionA
Get version information for Python tools (python, pip, uv, poetry, pyright, ruff, pytest) with caching
| Name | Required | Description | Default |
|---|---|---|---|
| tool | No | Tool to check version for (default: all) | |
| directory | No | Working directory |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations provided, so description carries full burden. It mentions 'with caching', which is a helpful behavioral detail. No contradictions.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
One concise sentence that front-loads the purpose and lists tools. No wasted words.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given simple input schema with 2 optional parameters and no output schema, description is complete with the added caching note. No gaps for decision-making.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100%, so schema already documents parameters. Description adds minimal value by implying default tool ('all') and mentioning caching, but does not elaborate on format or details beyond schema.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
Description clearly states 'Get version information' and lists all Python tools it covers. It distinguishes itself from sibling tools that perform other actions like linting or testing.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
Description implies usage context (checking tool versions) and is clear due to the tool name, but does not explicitly state when not to use it or mention alternatives.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
recommend_mcp_serversB
Get intelligent recommendations for best-practice MCP servers based on project context. Suggests MCP servers like Sequential Thinking, Context7, Playwright, and others.
| Name | Required | Description | Default |
|---|---|---|---|
| useCase | No | Specific use case (e.g., "testing", "database", "browser automation") | |
| category | No | Filter by category (development, testing, documentation, ai, database, filesystem, web, productivity) | |
| priority | No | Filter by priority level | |
| includeConfig | No | Include .mcp.json configuration example (default: false) |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description must fully disclose behavior. It only states it gives recommendations but does not explain how it works, if it requires network access, or what the output format is. This is insufficient.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is very concise, consisting of two sentences that effectively communicate the tool's purpose. It is well front-loaded and contains no extraneous information.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
With no output schema, the description should explain what the tool returns when invoked. It does not mention return values or the nature of recommendations (e.g., list of server names with reasons). This is a significant gap for a recommendation tool.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The schema covers 100% of the parameter descriptions, so the baseline is 3. The description does not add additional semantic value beyond the parameter descriptions already present in the schema.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool recommends best-practice MCP servers based on project context, with specific examples. It is distinct from all sibling tools which are linting, testing, or build tools, so there is no ambiguity.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description does not provide any guidance on when to use this tool or compare it to alternatives. There are no explicit conditions or prerequisites mentioned, leaving the agent to infer usage.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
rollback_setupC
Rollback to a previous configuration from backup
| Name | Required | Description | Default |
|---|---|---|---|
| directory | No | Working directory (defaults to current directory) | |
| backupPath | Yes | Path to backup file to restore from |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations provided, and description does not disclose behavioral traits such as potential destructiveness, authentication requirements, or reversibility. Only implies a write operation.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
Single sentence, no wasted words, but could be expanded to include critical context. Adequate but not outstanding.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given no output schema, no annotations, and only two parameters, the description is woefully incomplete. Does not explain return values, success/failure behavior, backup format, or any operational details.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100% with both parameters described. The description adds no additional meaning beyond the schema, so a baseline score of 3 is appropriate.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the verb 'rollback' and the resource 'configuration from backup'. It is specific and distinguishes from siblings like validate_setup.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
No guidance on when to use this tool versus alternatives, no prerequisites or when-not-to-use conditions. Description is minimal and lacks context.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
run_testsB
Run tests using the detected test framework
| Name | Required | Description | Default |
|---|---|---|---|
| args | No | Additional arguments to pass to the test runner | |
| watch | No | Run tests in watch mode | |
| pattern | No | Test file pattern or specific test to run | |
| timeout | No | Test timeout in milliseconds | |
| verbose | No | Enable verbose output | |
| coverage | No | Generate test coverage report | |
| parallel | No | Run tests in parallel when supported | |
| directory | No | Working directory for the test command |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description must disclose behavioral traits. It only says 'Run tests using the detected test framework'. It doesn't mention what happens if no framework is detected, error behavior, or any side effects, leaving agents uninformed.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single concise sentence that is front-loaded. However, it could include more useful information without sacrificing conciseness.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given 8 parameters, no output schema, and no annotations, the description is far too brief. It lacks context on return values, error cases, and how framework detection works, making it incomplete for safe and effective use.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100% with descriptions for all 8 parameters. The tool description adds no additional meaning beyond the schema, so baseline 3 is appropriate.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the verb 'Run' and resource 'tests' with the method 'using the detected test framework'. It effectively distinguishes itself from sibling tools that are language-specific (e.g., go_test, nodejs_test) by implying automatic framework detection.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
No guidance is provided on when to use this tool vs. language-specific siblings. There are no statements about prerequisites, when a specific sibling would be better, or when detection might fail.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
staticcheckC
Run staticcheck for enhanced Go static analysis
| Name | Required | Description | Default |
|---|---|---|---|
| args | No | Additional arguments | |
| package | No | Go package to analyze (e.g., ./...) | |
| directory | No | Working directory |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description should disclose behavioral traits, but it only says 'Run staticcheck for enhanced Go static analysis'. It does not mention that staticcheck is a safety analysis tool (non-destructive), what output it produces, or any requirements like a Go module context.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single, clear sentence that efficiently conveys the tool's purpose, though it is somewhat minimal. No wasted words.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool's moderate complexity (3 optional params, no output schema) and the presence of many sibling Go analysis tools, the description lacks sufficient context to guide the agent. It does not explain what 'enhanced' means or how staticcheck differs from similar tools like go_vet.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The input schema has 100% description coverage, so the schema already defines each parameter. The description adds no extra semantic meaning beyond the schema, meeting the baseline of 3.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the action 'Run' and the resource 'staticcheck', indicating it executes the staticcheck tool for Go static analysis. However, it does not differentiate from sibling tools like 'go_lint' or 'go_vet' which serve similar purposes, and 'enhanced' is vague.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
No guidance is provided on when to use this tool versus alternatives (e.g., go_lint, go_vet). There is no mention of prerequisites, typical scenarios, or when not to use it.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
test_statusC
Get project test status and recommendations
| Name | Required | Description | Default |
|---|---|---|---|
| directory | No | Working directory to analyze |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations provided, so the description carries the full burden. It only implies a read operation ('get') but does not disclose side effects, auth requirements, or rate limits.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is concise with no wasted words, but it is a single sentence without further structure or elaboration.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the lack of output schema, the description does not adequately explain what the test status and recommendations entail, leaving the agent with incomplete information.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100% with a single parameter described. The tool description adds no additional meaning beyond the schema, meeting the baseline.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description states it gets project test status and recommendations, but it is vague and does not differentiate from sibling tools like 'project_status' or language-specific test tools.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
No guidance on when to use this tool versus alternatives such as 'project_status' or 'go_test'. The description lacks context for appropriate usage.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
validate_setupB
Validate existing MCP DevTools configuration and setup, checking commands, tools, and configuration validity
| Name | Required | Description | Default |
|---|---|---|---|
| directory | No | Working directory containing configuration (defaults to current directory) | |
| configPath | No | Path to configuration file (defaults to .mcp-devtools.json) |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries full burden. It lacks details on side effects, authentication, rate limits, or output behavior. The agent knows it validates but not what happens on success/failure or whether it modifies state.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single concise sentence with front-loaded purpose. It contains no fluff, though it could be slightly more structured with separate clauses for each check.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given no output schema and no annotations, the description should compensate by explaining return values, error conditions, or when validation passes/fails. It is too brief for a validation tool with optional parameters.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100% for the two optional parameters (directory and configPath). The description does not add extra meaning beyond the schema, so baseline 3 applies.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool's purpose: 'Validate existing MCP DevTools configuration and setup, checking commands, tools, and configuration validity.' It uses a specific verb ('Validate') and resource ('MCP DevTools configuration and setup'), and distinguishes from siblings like generate_config and rollback_setup by focusing on validation.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
No guidance on when to use this tool versus alternatives. With many siblings (e.g., generate_config, rollback_setup, onboarding_wizard), the description should indicate typical usage scenarios or prerequisites, but it provides none.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
yamllintB
Run yamllint on YAML files
| Name | Required | Description | Default |
|---|---|---|---|
| args | No | Additional arguments to pass to yamllint | |
| files | No | Specific files to lint (glob patterns supported) | |
| directory | No | Working directory for the lint command |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Without annotations, the description must convey behavioral traits, but it provides none. It does not disclose output format, error behavior, or handling of missing files, leaving the agent without critical context for correct invocation.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The single-sentence description is highly concise and front-loaded, containing no extraneous words. Every word adds value.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Despite low complexity (3 optional params, no output schema), the description fails to explain tool behavior, output, or expected inputs. It lacks completeness for an agent to confidently use the tool.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100% (all three parameters have descriptions in the schema). Per the guidelines, the description adds no new meaning beyond the schema, earning a baseline score of 3.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description 'Run yamllint on YAML files' clearly states the tool's purpose with a specific verb ('run') and resource ('yamllint on YAML files'). It effectively distinguishes from sibling linters like eslint, markdownlint, etc., which target different file types.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
No guidance is provided on when to use this tool versus alternatives or what prerequisites are needed. The description omits any context about selecting yamllint over other YAML validation methods.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Tool Schema Changelog
Recent tool additions, removals, and schema changes observed during successful MCP inspections. Dates show when Glama detected each change.
71 tool updates
v0.2.1- First observed
actionlint - First observed
analyze_command - First observed
analyze_result - First observed
code_review - First observed
commitlint - First observed
detect_project - First observed
dotenv_environment - First observed
ensure_newline - First observed
eslint - First observed
generate_config - First observed
generate_pr_message - First observed
get_current_datetime - First observed
get_knowledge_base_stats - First observed
go_benchmark - First observed
go_build - First observed
go_fmt - First observed
go_generate - First observed
go_lint - First observed
go_mod_download - First observed
go_mod_tidy - First observed
go_project_info - First observed
go_test - First observed
go_vet - First observed
go_vulncheck - First observed
go_work - First observed
jq_query - First observed
lint_all - First observed
make_build - First observed
make_clean - First observed
make_depend - First observed
make_lint - First observed
make_test - First observed
markdownlint - First observed
nodejs_benchmark - First observed
nodejs_build - First observed
nodejs_check_types - First observed
nodejs_compatibility - First observed
nodejs_format - First observed
nodejs_install_deps - First observed
nodejs_lint - First observed
nodejs_package_info - First observed
nodejs_profile - First observed
nodejs_project_info - First observed
nodejs_scripts - First observed
nodejs_security - First observed
nodejs_test - First observed
nodejs_update_deps - First observed
nodejs_version - First observed
onboarding_wizard - First observed
project_status - First observed
python_benchmark - First observed
python_build - First observed
python_check_types - First observed
python_compatibility - First observed
python_format - First observed
python_install_deps - First observed
python_lint - First observed
python_profile - First observed
python_project_info - First observed
python_security - First observed
python_test - First observed
python_update_deps - First observed
python_venv - First observed
python_version - First observed
recommend_mcp_servers - First observed
rollback_setup - First observed
run_tests - First observed
staticcheck - First observed
test_status - First observed
validate_setup - First observed
yamllint
TDQS
Most tools are clearly distinguished by language prefixes and specific purposes. Some overlap exists (e.g., multiple test tools), but descriptions and context help agents select correctly.
Tools follow snake_case, but prefixes are inconsistent. Language-specific tools use 'language_action' pattern, while general tools like 'analyze_command' and 'jq_query' lack prefixes, creating a mixed convention.
With 71 tools, the server is extremely large for a single MCP server. It tries to cover too many domains, leading to an unfocused and overwhelming toolset. A more scoped approach would be better.
The toolset covers a wide range of development tasks: linting, testing, building, security, profiling, etc. Minor gaps exist (e.g., no Rust tools), but overall it provides comprehensive support for common workflows.
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