What is deepsource-mcp-server CLAUDE.md?

A local MCP server that connects AI assistants to DeepSource's code-quality analysis platform. It provides access to code-quality metrics and analysis results through DeepSource's GraphQL API.

Use it to review code-quality analysis results and metrics while working in a repository.

It lets an assistant inspect DeepSource findings and metrics without switching between the assistant and the analysis service.

How sapientpants/deepsource-mcp-server configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to sapientpants/deepsource-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.

Copy the file

curl -O https://raw.githubusercontent.com/sapientpants/deepsource-mcp-server/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/sapientpants/deepsource-mcp-server

Made for: Claude Code.

Wrote 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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/sapientpants/deepsource-mcp-server/claude-md/github.svg)](https://agentmods.dev/instructions/sapientpants/deepsource-mcp-server/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/sapientpants/deepsource-mcp-server/claude-md"><img src="https://agentmods.dev/badge/instructions/sapientpants/deepsource-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.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/sapientpants/deepsource-mcp-server/claude-md"><img src="https://agentmods.dev/badge/instructions/sapientpants/deepsource-mcp-server/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 3,103 This file is loaded in full into every session.

When invoked 3,103 The same file — it is already loaded in full.

Security scan C 1 finding. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Token cost

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	$0.03103	$0.03103
Opus 5.5	$0.01241	$0.01241
Sonnet 5.5	$0.00621	$0.00621
Haiku 4.5	$0.00310	$0.00310

Measured 2mo ago against content hash 58465de82383, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade C, and why

deepsource-mcp-server CLAUDE.md scanned grade C with 1 finding 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 2mo 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.

Recursive force deletehighDestructive command

rm -rf with a variable or a broad path is one typo away from removing the wrong tree.

rm -rf node_modules pnpm-lock.yaml && pnpm install

CLAUDE.md · 441 lines

How it starts

The opening of the file, as written. The whole thing — 441 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.

Repository Overview

This repository is a Model Context Protocol (MCP) server that integrates with DeepSource's code quality analysis platform. It serves as a bridge between DeepSource's GraphQL API and MCP-compatible AI assistants like Claude, providing access to code quality metrics and analysis results.

Development Commands

Understanding MCP Servers

MCP servers are not standalone services - they communicate via stdio with MCP clients (like Claude Desktop). The server cannot be run directly with node or npm start in a meaningful way. Instead, use:

Production: Configure in Claude Desktop or use npx deepsource-mcp-server
Development: Use pnpm run inspect with the MCP Inspector tool
Testing: Run the test suite with pnpm test

Quick Start

# Install dependencies
pnpm install

# Build the server
pnpm run build

# Debug with MCP Inspector (recommended for development)
pnpm run inspect

Building & Debugging

pnpm run build          # Compile TypeScript to JavaScript
pnpm run watch          # Watch mode - rebuild on changes
pnpm run clean          # Remove build artifacts (dist/)

# Debugging with MCP Inspector
pnpm run inspect        # Launch MCP Inspector to test the server interactively

Testing

# Basic testing
pnpm run test           # Run all tests
pnpm run test:watch     # Run tests in watch mode
pnpm run test:coverage  # Run tests with coverage report

# Run specific tests
pnpm test -- src/__tests__/specific-test.test.ts
pnpm test -- --testNamePattern="should handle errors"
pnpm test -- --verbose src/__tests__/specific-test.test.ts

# Run tests for a specific file pattern
pnpm test -- client      # Test all client files
pnpm test -- handler     # Test all handler files

Code Quality

# Type checking
pnpm run check-types    # Type check without building

# Linting
pnpm run lint           # Run ESLint
pnpm run lint:fix       # Auto-fix ESLint issues

# Formatting
pnpm run format         # Check if code is formatted
pnpm run format:fix     # Format all code with Prettier

# Full CI pipeline
pnpm run ci            # Run format, lint, type check, build, and test coverage

Read the full file on GitHub · 441 lines

Changes

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.

2mo ago First seen · 441 lines · 3,103 tokens per session scan C 58465de82383

Subscribe to this mod's changes

deepsource-mcp-server CLAUDE.md is an instructions file published in the GitHub repository sapientpants/deepsource-mcp-server (7 stars, last pushed 1y ago), licensed MIT. It adds 3,103 tokens to every session, about $0.0124 per session on Opus 5.5. A static security scan graded it C with 1 finding (recursive force delete). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

Analytics and metrics deepsource mcp mcp-server model-context-protocol model-context-protocol-servers

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deepsource-mcp-server: Instructions file for Claude Code