MCP Prompt Template Selector MCP Server

MCP Prompt Template Selector

AI-powered prompt template selection and generation for Claude Code

Installation • Quick Start • Usage • API • Examples

MCP server that automatically selects and generates specialized prompts from a knowledge base of 66+ Claude Code system prompts. Uses LLM-powered semantic search to find the best matching template and adapts it to your specific task.

Features

• Smart Template Selection — Semantic search across 66+ prompt templates using Claude Haiku
• Adaptive Generation — Returns original template when it fits, customizes when adaptation is needed
• Custom Templates — Add your own templates with priority over built-in ones
• Dual Transport — Works via stdio (local) or HTTP (server deployment)
• Zero Config — Templates auto-sync from claude-code-system-prompts

Requirements

• Bun v1.0+
• Anthropic API key

Installation

# Clone the repository
git clone https://github.com/YOUR_USERNAME/mcp-prompt-tool.git
cd mcp-prompt-tool

# Install dependencies
bun install

# Configure API key
echo "ANTHROPIC_API_KEY=your-api-key-here" > .env

Quick Start

Connect to Claude Code (recommended)

Add MCP server to Claude Code via command line:

claude mcp add --transport stdio prompt-template-selector -- bun run /path/to/mcp-prompt-tool/src/index.ts

Verify connection:

claude mcp list

Then in Claude Code use /mcp to see available tools.

Alternative: Run as HTTP server

bun run start:http
# Server runs at http://localhost:3000

Usage

Once connected, you have 4 tools available in Claude Code:

`list_templates`

Browse available templates:

list_templates category:agent
list_templates search:"code review"

`select_template`

Find best matching template for your task:

select_template task_description:"I need to review GitHub PRs"

`generate_prompt`

Generate a ready-to-use prompt:

generate_prompt task_description:"Agent for Python code refactoring" context:"Django, async migration"

`sync_templates`

Update templates from GitHub:

sync_templates force_reindex:true

Examples

Example 1: Code Review Agent

Request:

{
  "task_description": "Агент для code review Pull Request на GitHub",
  "prompt_type": "agent"
}

Result: Returns the original agent-prompt-review-pr-slash-command template as-is, since it's a perfect match.

You are an expert code reviewer. Follow these steps:

1. If no PR number is provided in the args, use ${BASH_TOOL_OBJECT.name}("gh pr list") to show open PRs
2. If a PR number is provided, use ${BASH_TOOL_OBJECT.name}("gh pr view <number>") to get PR details
3. Use ${BASH_TOOL_OBJECT.name}("gh pr diff <number>") to get the diff
4. Analyze the changes and provide a thorough code review...

Example 2: Custom Task with Adaptation

Request:

{
  "task_description": "Agent for legacy Python code analysis and migration to Python 3.12 async/await",
  "prompt_type": "agent",
  "context": "Django project with synchronous callbacks"
}

Result: Adapts the agent-prompt-plan-mode-enhanced template with Django/async specifics:

You are a Python code modernization specialist for legacy Django projects.
Your role is to analyze and plan refactoring of synchronous callback-based
code with migration to Python 3.12 and async/await patterns.

=== CRITICAL: READ-ONLY MODE ===
...

## Your Process
1. **Understand Requirements**: Focus on the legacy code patterns...
2. **Explore Thoroughly**: Find callback-based patterns and synchronous code...
3. **Design Solution**: Plan async context manager and async generator migrations...

Example 3: Listing Agent Templates

Request:

{
  "category": "agent",
  "search": "security"
}

Result:

{
  "total_count": 2,
  "templates": [
    {
      "name": "agent-prompt-security-review-slash",
      "purpose": "Conduct focused security reviews of code changes",
      "complexity": "complex"
    },
    {
      "name": "agent-prompt-bash-command-prefix-detection",
      "purpose": "Detecting command injection attacks",
      "complexity": "complex"
    }
  ]
}

Template Categories

Custom Templates

Add your own templates to custom-templates/ directory:

custom-templates/
├── my-ag