mcp-sequentialthinking-qa

An adaptation of the MCP Sequential Thinking Server designed to guide tool usage in QA and verification processes. This server helps break down verification tasks into manageable steps and provides LLM-driven recommendations for which MCP tools would be most effective at each stage.

A Model Context Protocol (MCP) server that combines sequential thinking with intelligent tool suggestions for QA tasks. For each step in the verification process, it provides confidence-scored recommendations for which tools to use, along with rationale for why each tool would be appropriate.

Features

• 🤔 Dynamic and reflective QA problem-solving through sequential thoughts

• 🔄 Flexible verification process that adapts and evolves

• 🌳 Support for branching and revision of thoughts

• 🛠️ LLM-driven intelligent tool recommendations for QA tasks

• 📊 Confidence scoring for tool suggestions

• 🔍 Detailed rationale for tool recommendations

• 📝 Step tracking with expected outcomes

• 🔄 Progress monitoring with previous and remaining steps

• 🎯 Alternative tool suggestions for each step

• 🧠 Memory management with configurable history limits

• 🗑️ Manual history cleanup capabilities

Related MCP server: Execution Journal

How It Works

This server facilitates sequential thinking with MCP tool coordination for QA and verification tasks. The LLM analyzes available tools and their descriptions to make intelligent recommendations for verification processes, which are then tracked and organized by this server.

The workflow:

1. LLM provides available MCP tools to the sequential thinking QA server

2. LLM analyzes each verification step and recommends appropriate tools

3. Server tracks recommendations, maintains context, and manages memory

4. LLM executes recommended tools and continues the verification process

Each recommendation includes:

• A confidence score (0-1) indicating how well the tool matches the verification need

• A clear rationale explaining why the tool would be helpful for this QA step

• A priority level to suggest tool execution order

• Suggested input parameters for the tool

• Alternative tools that could also be used

The server works with any MCP tools available in your environment and automatically manages memory to prevent unbounded growth.

Example Usage

Here's an example of how the server guides tool usage for QA verification:

{
	"available_mcp_tools": [
		"mcp-filesystem",
		"mcp-playwright",
		"mcp-omnisearch"
	],
	"thought": "Need to verify package version compatibility before implementing configuration",
	"verification_target": "package version compatibility",
	"current_step": {
		"step_description": "Check installed package version in package.json",
		"expected_outcome": "Confirmed package version and dependencies",
		"recommended_tools": [
			{
				"tool_name": "read_file",
				"confidence": 0.95,
				"rationale": "Examine package.json to determine installed version and dependencies",
				"priority": 1,
				"suggested_inputs": {
					"path": "package.json"
				}
			},
			{
				"tool_name": "execute_command",
				"confidence": 0.75,
				"rationale": "Run npm list to verify actually installed versions",
				"priority": 2,
				"alternatives": ["pnpm list", "yarn list"]
			}
		],
		"next_step_conditions": [
			"Version identified",
			"Dependencies verified",
			"Check for breaking changes between versions"
		]
	},
	"thought_number": 1,
	"total_thoughts": 4,
	"next_thought_needed": true
}

The server tracks your progress and supports:

• Creating branches to explore different verification approaches

• Revising previous thoughts with new information

• Maintaining context across multiple verification steps

• Suggesting next steps based on current findings

• Adapting to the specific tools available in your environment

Configuration

This server requires configuration through your MCP client. Here are examples for different environments:

Cline Configuration

Add this to your Cline MCP settings:

{
	"mcpServers": {
		"mcp-sequentialthinking-qa": {
			"command": "npx",
			"args": ["-y", "mcp-sequentialthinking-qa"],
			"env": {
				"MAX_HISTORY_SIZE": "1000"
			}
		}
	}
}

Claude Desktop with WSL Configuration

For WSL environments, add this to your Claude Desktop configuration:

{
	"mcpServers": {
		"mcp-sequentialthinking-qa": {
			"command": "wsl.exe",
			"args": [
				"bash",
				"-c",
				"MAX_HISTORY_SIZE=1000 source ~/.nvm/nvm.sh && /home/username/.nvm/versions/node/v20.12.1/bin/npx mcp-sequentialthinking-qa"
			]
		}
	}
}

API

The server implements a single MCP tool with configurable parameters:

sequentialthinking_qa

A tool for QA-focused sequential thinking with intelligent tool recommendations for verification tasks.

Parameters:

• available_mcp_tools (array, required): Array of MCP tool names available for use (e.g., ["mcp-omnisearch", "mcp-playwright", "mcp-filesystem"])

• thought (string, required): Your current thinking step in the QA process

• next_thought_needed (boolean, required): Whether another thought step is needed

• thought_number (integer, required): Current thought number

• total_thoughts (integer, required): Estimated total thoughts needed

• verification_target (string, optional): What's being verified (code, config, package version, etc.)

• is_revision (boolean, optional): Whether this revises previous thinking

• revises_thought (integer, optional): Which thought is being reconsidered

• branch_from_thought (integer, optional): Branching point thought number

• branch_id (string, optional): Branch identifier

• needs_more_thoughts (boolean, optional): If more thoughts are needed

• current_step (object, optional): Current step recommendation with:

  • step_description: What needs to be done

  • recommended_tools: Array of tool recommendations with confidence scores

  • expected_outcome: What to expect from this step

  • next_step_conditions: Conditions for next step

• previous_steps (array, optional): Steps already recommended

• remaining_steps (array, optional): High-level descriptions of upcoming steps

Memory Management

The server includes built-in memory management to prevent unbounded growth:

• History Limit: Configurable maximum number of thoughts to retain (default: 1000)

• Automatic Trimming: History automatically trims when limit is exceeded

• Manual Cleanup: Server provides methods to clear history when needed

Configuring History Size

You can configure the history size by setting the MAX_HISTORY_SIZE environment variable:

{
	"mcpServers": {
		"mcp-sequentialthinking-qa": {
			"command": "npx",
			"args": ["-y", "mcp-sequentialthinking-qa"],
			"env": {
				"MAX_HISTORY_SIZE": "500"
			}
		}
	}
}

Or for local development:

MAX_HISTORY_SIZE=2000 npx mcp-sequentialthinking-qa

Development

Setup

1. Clone the repository

2. Install dependencies:

pnpm install

3. Build the project:

pnpm build

4. Run in development mode:

pnpm dev

Publishing

The project uses changesets for version management. To publish:

1. Create a changeset:

pnpm changeset

2. Version the package:

pnpm changeset version

3. Publish to npm:

pnpm release

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

License

MIT License - see the LICENSE file for details.

Acknowledgments

• Built on the Model Context Protocol

• Adapted from the MCP Sequential Thinking Server

• Inspired by mcp-sequentialthinking-tools