Borrowing it
Nothing to install: this file belongs to tanker327/prompts-mcp-server. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/tanker327/prompts-mcp-server/main/CLAUDE.mdgit clone --depth 1 https://github.com/tanker327/prompts-mcp-serverWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/instructions/tanker327/prompts-mcp-server/claude-md)<a href="https://agentmods.dev/instructions/tanker327/prompts-mcp-server/claude-md"><img src="https://agentmods.dev/badge/instructions/tanker327/prompts-mcp-server/claude-md/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/instructions/tanker327/prompts-mcp-server/claude-md"><img src="https://agentmods.dev/badge/instructions/tanker327/prompts-mcp-server/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.01500 | $0.01500 |
| Opus 5 | $0.00750 | $0.00750 |
| Sonnet 5 | $0.00300 | $0.00300 |
| Haiku 4.5 | $0.00150 | $0.00150 |
Grade A, and why
prompts-mcp-server CLAUDE.md scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 10d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 163 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md
This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
Development Commands
npm install- Install dependenciesnpm run build- Compile TypeScript to JavaScriptnpm start- Build and start the MCP servernpm run dev- Start server with auto-reload for development (uses tsx)npm test- Run all tests (exits automatically)npm run test:watch- Run tests in watch mode (continuous)npm run test:coverage- Run tests with coverage report (exits automatically)
Architecture Overview
This is an MCP (Model Context Protocol) server written in TypeScript that manages prompt templates stored as markdown files with YAML frontmatter metadata.
Core Components
Main Server (src/index.ts)
- Entry point that orchestrates all components
- Handles MCP server initialization and graceful shutdown
- Registers tool handlers and connects to stdio transport
- Minimal orchestration layer that delegates to specialized modules
Type Definitions (src/types.ts)
- Central location for all TypeScript interfaces
PromptMetadata,PromptInfo,ToolArguments,ServerConfig- Ensures type consistency across all modules
Caching System (src/cache.ts)
PromptCacheclass manages in-memory prompt metadata- File watcher integration with chokidar for real-time updates
- Handles cache initialization, updates, and cleanup
- Provides methods for cache access and management
File Operations (src/fileOperations.ts)
PromptFileOperationsclass handles all file I/O- CRUD operations: create, read, update, delete prompts
- Filename sanitization and directory management
- Integrates with cache for optimal performance
MCP Tools (src/tools.ts)
PromptToolsclass implements MCP tool definitions and handlers- Handles all 4 MCP tools:
add_prompt,get_prompt,list_prompts,delete_prompt - Tool validation, execution, and response formatting
- Clean separation between MCP protocol and business logic
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 10d ago First seen · 163 lines · 1,500 tokens per session scan A 1de775e3774b
prompts-mcp-server CLAUDE.md is an instructions file published in the GitHub repository tanker327/prompts-mcp-server (16 stars, last pushed 1y ago), licensed MIT. It adds 1,500 tokens to every session, about $0.0075 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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