What is mcp-gitlab-server CLAUDE.md?

A project guide for a GitLab server that lets AI assistants work with GitLab repositories and related resources. It documents the project structure, development commands, tests, and security notes.

Use it when developing or reviewing this GitLab integration, running its TypeScript build and tests, working with its 30-plus GitLab tools, or preparing changes that need end-to-end test coverage.

It gives an assistant the repository-specific context needed to build, test, and maintain the server correctly instead of guessing how the project works. It also records how tool coverage and end-to-end tests are checked.

How yoda-digital/mcp-gitlab-server configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to yoda-digital/mcp-gitlab-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/yoda-digital/mcp-gitlab-server/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/yoda-digital/mcp-gitlab-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/yoda-digital/mcp-gitlab-server/claude-md/github.svg)](https://agentmods.dev/instructions/yoda-digital/mcp-gitlab-server/claude-md)

Your own site

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

Per session 993 This file is loaded in full into every session.

When invoked 993 The same file — it is already loaded in full.

Security scan A 0 findings. 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	$0.00993	$0.00993
Opus 5.5	$0.00397	$0.00397
Sonnet 5.5	$0.00199	$0.00199
Haiku 4.5	$0.00099	$0.00099

Measured 2mo ago against content hash acdd1f256d5f, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

mcp-gitlab-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 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.

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.

CLAUDE.md · 87 lines

How it starts

The opening of the file, as written. The whole thing — 87 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.

Project Overview

GitLab MCP Server - A Model Context Protocol server enabling AI assistants to interact with GitLab resources. Exposes 30+ tools for repository management, file operations, issues, merge requests, wikis, and member management.

Package: @yoda.digital/gitlab-mcp-server

Build & Development Commands

npm run build    # Compile TypeScript to dist/
npm start        # Run compiled server
npm run dev      # Development with ts-node hot reload

Note: npm test runs vitest (vitest run). Unit specs live alongside source: src/formatters.test.ts, src/schemas.test.ts, src/gitlab-api.test.ts, src/transport.test.ts, src/utils.test.ts. Plus an E2E suite under e2e/ that runs against a real GitLab CE container (81 tests, 86 tools, see CONTRIBUTING.md § "Running the E2E suite locally"). The coverage gate in scripts/check-tool-coverage.sh (wired into build.yml) fails the build if a new tool ships without an E2E test. No dedicated linter is configured; TypeScript strict mode handles type checking.

Security: Vulnerabilities go through GitHub Private Vulnerability Reporting — never via public issues. Threat model and scope are in SECURITY.md.

Architecture

src/
├── index.ts       # MCP server setup, tool registration, and request handlers (main switch statement)
├── gitlab-api.ts  # GitLabApi class - all GitLab REST API interactions
├── schemas.ts     # Zod schemas for input validation and response types
├── formatters.ts  # Response formatting functions for MCP-compatible output
├── transport.ts   # Stdio and SSE transport setup
└── utils.ts       # Utility functions (ISO date validation)

Request Flow

Tool receives request → Zod schema validates input
GitLabApi method makes authenticated HTTP call with Bearer token
Response validated with Zod schema
Formatter creates MCP response with text content blocks

Read the full file on GitHub · 87 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 · 87 lines · 993 tokens per session scan A acdd1f256d5f

Subscribe to this mod's changes

mcp-gitlab-server CLAUDE.md is an instructions file published in the GitHub repository yoda-digital/mcp-gitlab-server (65 stars, last pushed 2mo ago), licensed MIT. It adds 993 tokens to every session, about $0.0040 per session on Opus 5.5. 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.

LLM ai anthropic gitlab mcp

mcp-gitlab-server CLAUDE.md next to 6 instructions from other repositories
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mcp-gitlab-server CLAUDE.mdyoda-digital/mcp-gitlab-server	Instructions file	65	2mo ago	MIT	A	993	Claude Code
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vscode copilot-instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	3,093	GitHub Copilot
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mcp-gitlab-server: Instructions file for Claude Code