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TrueVoice MCP

TrueVoice MCP

Tools to eliminate AI slop from text

Model Context Protocol server with tools to detect and eliminate AI slop from text. Based on expert annotations from NLP writers and philosophers analyzing AI-generated text patterns.

Deploy to Vercel

What is AI Slop?

Low-quality AI text characterized by:

  • Information Utility: Low content density, irrelevant filler, factual errors

  • Style Quality: Repetitive structures, corporate clichés ("delve into", "leverage")

  • Structure: Excessive verbosity, poor coherence, formulaic patterns

Research foundation: arXiv:2509.19163v1

Related MCP server: Natural Voice MCP

Quick Start

One-Click Install

Visit truevoice-mcp.kushagragolash.dev for one-click install buttons for Cursor, VS Code, Claude Code, and Claude Desktop.

Claude Code

claude mcp add --transport http truevoice https://truevoice-mcp.kushagragolash.dev/api/mcp

Claude Desktop

Open Settings > Connectors > Add custom server, paste:

https://truevoice-mcp.kushagragolash.dev/api/mcp

Any MCP Client

Add to your MCP configuration:

{
  "mcpServers": {
    "truevoice": {
      "url": "https://truevoice-mcp.kushagragolash.dev/api/mcp"
    }
  }
}

Local Development (stdio)

{
  "mcpServers": {
    "truevoice": {
      "command": "node",
      "args": ["/path/to/truevoice-mcp/dist/index.js"]
    }
  }
}

See Development for full local setup.

Available Tools

get_human_writing_rules

Get comprehensive anti-slop writing rules tailored to your context.

Parameters:

  • context (optional): Writing type (e.g., "technical blog", "email", "docs")

Example:

Get writing rules for a technical blog post

check_for_slop

Analyze text for AI slop indicators across three dimensions.

Parameters:

  • text (required): The text to analyze

Example:

Check this for slop: "In today's digital landscape, it's important to
note that we should leverage cutting-edge solutions to deliver a
seamless user experience..."

Returns:

⚠️ AI Slop Analysis

- Overused Phrases: Found AI clichés - landscape, it's important to note,
  leverage, cutting-edge, seamless
- Verbosity: Overly long sentences (avg 28.5 words)
- Word Complexity: Unnecessarily formal - "utilize" → "use"

Recommendation: Revise to be more concise, direct, and natural.

get_slop_examples

Get categorized examples of AI slop patterns to avoid.

Parameters:

  • category (optional): "phrases", "structure", "tone", or "all"

Example:

Show me phrase examples to avoid

What Gets Detected

Slop Phrases

  • "delve into" → "explore"

  • "leverage" → "use"

  • "it's important to note" → just state it

  • "robust", "seamless", "holistic", "paradigm shift"

  • "cutting-edge", "game changer", "synergy"

Structural Issues

  • Repetitive sentence starts (same word 3+ times)

  • Excessive bullet points and lists

  • Overly formal language for casual contexts

  • Long sentences (>25 words average)

  • Low lexical density (<40% unique words)

Research-Based Scoring

Text analyzed across three weighted dimensions:

  • Information Utility (β=0.06) - Content density, relevance

  • Style Quality (β=0.05) - Repetition, coherence, naturalness

  • Structure (β=0.05) - Verbosity, bias, flow

Development

Prerequisites

  • Node.js 18+

  • TypeScript 5.6+

  • npm or pnpm

Local Setup

git clone https://github.com/howdoiusekeyboard/truevoice-mcp
cd truevoice-mcp
npm install
npm run build

Available Scripts

  • npm run build - Compile TypeScript

  • npm run dev - Watch mode for development

  • npm start - Run stdio server locally

  • npx ultracite check - Lint check

  • npx ultracite fix - Auto-fix issues

Testing Locally

Test stdio transport (Claude Desktop):

npm run build
npm start
# Server runs on stdio, test with MCP inspector:
npx @modelcontextprotocol/inspector node dist/index.js

Test HTTP transport (Cursor/Web):

vercel dev
# Visit http://localhost:3000

Architecture

Project Structure

truevoice-mcp/
├── api/                    # Vercel serverless functions
│   ├── mcp.ts             # HTTP MCP endpoint (Streamable HTTP)
│   ├── index.ts           # API info page
│   ├── check.ts           # Slop detection API
│   ├── rules.ts           # Rules API
│   └── examples.ts        # Examples API
├── src/                    # Core MCP server
│   ├── index.ts           # stdio transport (Claude Desktop)
│   └── rules.ts           # Anti-slop taxonomy
├── public/
│   └── index.html         # Homepage/docs
└── dist/                   # Compiled output

Dual Transport Support

stdio Transport (Local/Claude Desktop):

  • Direct process communication

  • Low latency, persistent connection

  • Best for local development

  • Entry: dist/index.js

Streamable HTTP Transport (Vercel/Web):

  • POST-only mode (MCP 2024-11-05 spec)

  • Fully stateless, serverless-optimized

  • No SSE (Vercel 60s timeout limitation)

  • Auto-scaling on demand

  • Endpoint: /api/mcp

Technology Stack

  • Runtime: TypeScript 5.6+ with Node.js ESM modules

  • Validation: Zod schemas for type safety

  • Linting: Ultracite (Biome-powered)

  • MCP SDK: @modelcontextprotocol/sdk v1.19+

  • Deployment: Vercel serverless functions

Deploy Your Own

One-Click Deploy

Deploy with Vercel

Manual Deploy

npm install
vercel deploy --prod

Your MCP endpoint: https://your-project.vercel.app/api/mcp

Environment Variables

None required! Server works out of the box.

Usage Examples

In Claude Desktop

"Check my email draft for AI slop patterns"
"Get writing rules for professional documentation"
"Show me examples of phrases to avoid in blog posts"

As Writing Assistant

"Analyze this paragraph and suggest improvements:
[paste text]"

"Get human writing rules for casual Twitter posts,
then help me write a thread"

API Integration

# Check text for slop
curl -X POST https://truevoice-mcp.kushagragolash.dev/api/check \
  -H "Content-Type: application/json" \
  -d '{"text": "Your text here"}'

# Get writing rules
curl https://truevoice-mcp.kushagragolash.dev/api/rules?context=email

Research Foundation

Based on expert annotations from:

  • NLP researchers and writers

  • Professional philosophers

  • Industry content creators

Key Findings:

  • Relevance (β=0.06) - Most significant slop indicator

  • Content Density (β=0.05) - Substantive vs. filler content

  • Natural Tone (β=0.05) - Conversational vs. robotic voice

  • Human perception correlation: AUROC 0.52-0.55

Full paper: arXiv:2509.19163

Documentation

Contributing

Contributions welcome! See CONTRIBUTING.md for guidelines.

Quick checklist:

  • Run npx ultracite fix before committing

  • Keep changes simple and focused

  • Add examples for new patterns

  • Update docs if needed

License

MIT License - see LICENSE for details


Live Demo: truevoice-mcp.kushagragolash.dev MCP Endpoint: https://truevoice-mcp.kushagragolash.dev/api/mcp

Available Tools

3 tools
check_for_slopCheck for AI SlopA

Analyze text for AI slop indicators across three categories: Information Utility, Style Quality, and Structure. Returns specific patterns to avoid.

ParametersJSON Schema
NameRequiredDescriptionDefault
textYesThe text to analyze for AI slop indicators

TDQS

A3.5/5.0
Behavior3/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations are absent, so the description carries the full burden of behavioral disclosure. It states that it analyzes text and returns patterns, which is basic but does not mention any side effects, prerequisites, error conditions, or performance characteristics. For a read-only analysis tool this is adequate, but not comprehensive.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Two sentences with no redundancies. The core purpose and categories are front-loaded, and the return value is clarified in the second sentence. Every word earns its place.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness3/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a simple one-parameter tool with no output schema, the description covers the essential purpose. However, it does not describe the structure of the returned patterns, any limitations (e.g., language support), or how to interpret results, leaving an agent with only partial context for effective invocation and use.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 100% (the single 'text' parameter has a description). The description adds that it analyzes text, which aligns with the schema but provides no additional nuance about format, encoding, or expected content beyond what the schema already states.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

States a clear verb (analyze) and resource (text for AI slop indicators), and explicitly lists three analysis categories. It distinguishes functionally from siblings (this analyzes, others provide rules/examples), though it doesn't name them directly, so it falls just short of a 5.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

No explicit when-to-use or alternative routing is provided. The purpose implies this tool is for analyzing text, while get_human_writing_rules and get_slop_examples would likely be used for reference materials, but the description does not state this or offer any conditions for selection.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

get_human_writing_rulesGet Human Writing RulesA

Get comprehensive rules for writing like a human and avoiding AI slop. Use these rules as system-level instructions for any text generation task.

ParametersJSON Schema
NameRequiredDescriptionDefault
contextNoOptional: The context or type of writing (e.g., 'technical documentation', 'casual email', 'blog post')

TDQS

A3.5/5.0
Behavior3/5

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 behavioral disclosure. It conveys what the tool returns (rules) and how to apply them (as system-level instructions), which is reasonably transparent for a read-only retrieval tool. It doesn't disclose output scale, format, or how 'comprehensive' the rules are, but the essential behavior is clear.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Two sentences with the purpose front-loaded before the usage direction. The first sentence delivers the core function and the second adds practical deployment guidance. No filler or repetition; appropriately sized for a simple tool.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

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, zero required parameters, no output schema, no nested objects — the description covers the essentials: what the tool does and how to apply its results. The context parameter semantics are already in the schema. Nothing critical an agent needs to invoke it successfully is missing.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 100% — the single optional 'context' parameter is fully documented in the schema with an example ('technical documentation', 'casual email'), so the schema already does the heavy lifting. The description adds nothing about the parameter beyond what the schema provides, meriting the baseline score of 3.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description states a specific verb and resource: 'Get comprehensive rules for writing like a human and avoiding AI slop.' This is clearly a rules-retrieval tool, and it is reasonably distinguishable from siblings check_for_slop (detection) and get_slop_examples (examples). However, it doesn't explicitly name siblings or state how it relates to them, so differentiation is implicit rather than direct.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The second sentence provides useful application guidance: 'Use these rules as system-level instructions for any text generation task.' This tells the agent when and how to deploy the output. However, it offers no exclusions or alternatives — it doesn't say when to prefer get_slop_examples or check_for_slop instead, leaving some selection burden on the agent.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

get_slop_examplesGet Slop ExamplesB

Get examples of common AI slop phrases and patterns to avoid, categorized by type.

ParametersJSON Schema
NameRequiredDescriptionDefault
categoryNoThe category of slop examples to retrieve

TDQS

B3.1/5.0
Behavior2/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Since no annotations are provided, the description carries full responsibility for behavioral disclosure. It only states the core function without mentioning any restrictions, requirements, or side effects. There's no indication of output format, whether it returns a list, or any edge cases, providing minimal transparency beyond the obvious.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

A single, front-loaded sentence that clearly states the action and resource. No wasted words or redundancy, making it highly concise and easy to parse.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness3/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a tool with one optional parameter and no output schema, the description provides a basic understanding of its purpose. However, it doesn't specify the return format or any example output, which might be expected for a retrieval tool. Given the low complexity, it's adequate but leaves some room for more clarity.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The schema covers 100% of the parameter description, including an enum for category with clear descriptions. The description adds 'categorized by type' which aligns with the category parameter, but offers no additional semantic value beyond what the schema already provides. Baseline 3 is appropriate given the high schema coverage.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool fetches examples of common AI slop phrases and patterns, categorized by type. It specifies the verb 'get' and resource 'examples of slop phrases and patterns', making its purpose distinct from siblings like get_human_writing_rules and check_for_slop, though it doesn't explicitly name them as alternatives.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

No guidance is given on when to use this tool versus the sibling tools. It doesn't mention any exclusions, prerequisites, or alternative conditions, leaving the agent to infer that it's for retrieving examples. This is a significant gap given the tool's siblings have overlapping domains.

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.

  1. 3 tool updatesv1.0.0
    • First observedcheck_for_slop
    • First observedget_human_writing_rules
    • First observedget_slop_examples

TDQS

A3.7/5.0
Disambiguation5/5

Each tool has a distinct purpose: retrieving rules, analyzing text for slop, and providing examples. There is no meaningful overlap between them, and their descriptions clearly separate the reference/instructional functions from the analysis function.

Naming Consistency4/5

Tool names follow a clear and predictable lowercase snake_case pattern, mostly using get_ for reference tools and check_for_ for the analysis tool. Minor inconsistency exists between get_ and check_for_ as verb styles, but the naming remains readable and consistent overall.

Tool Count5/5

Three tools is a well-scoped count for a focused MCP server centered on human writing rules and AI slop detection. Each tool serves a distinct and necessary role without bloat or redundancy.

Completeness4/5

The tool surface covers the core domain well: users can learn the rules, see examples, and check their text for slop. A minor gap is the absence of a rewrite/improvement tool, but this is not a significant failure for the apparent advisory/analysis purpose.

Maintenance

ActivityMaintained
ResponsivenessNo issues

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