repo-ctx 0.2.2

Git repository documentation indexer with MCP server, CLI, and library interfaces

Repository Context (repo-ctx)

A flexible Git repository documentation indexer and search tool with multiple interfaces:

• MCP Server for LLM integration (primary use case, details see docs/mcp_tools_reference.md)
• CLI for standalone searching
• Python library for custom integrations

Supports GitLab, GitHub, and local Git repositories (including Enterprise versions) with auto-detection and explicit provider selection.

Features

• Multi-provider support - Index from GitLab, GitHub, and local Git repositories
• Local repository indexing - Index local repos without network access (offline work)
• GitHub public repos - Works without authentication (with rate limits)
• Smart authentication fallback - Falls back to unauthenticated access if token is invalid
• Search repositories by name with fuzzy matching
• Retrieve documentation with topic filtering
• Support for multiple versions (tags/branches)
• Configurable via .repo-ctx.json or git_context.json in repositories
• SQLite storage for fast local access
• MCP protocol for seamless LLM integration
• Works with Claude Code, Kiro CLI, GitHub Copilot, and other AI tools
• Use as a Python library in your own tools
• Auto-detect provider from repository path format

Installation

From PyPI (Recommended)

uvx repo-ctx

From Source

cd repo-ctx
uv pip install -e .

MCP Tools Overview

repo-ctx provides 6 MCP tools for seamless integration with AI assistants like Claude Code, Kiro CLI, and GitHub Copilot.

Workflow Diagram

graph TB
    Start([AI Assistant]) --> Setup[Configure MCP Server]
    Setup --> |Optional: GitLab/GitHub tokens| Ready[repo-ctx Ready]
    Setup --> |No config needed for local/public repos| Ready

    Ready --> Index{Index Repositories}

    Index --> |Local repos| IndexLocal[repo-ctx-index<br/>/path/to/repo]
    Index --> |GitHub public| IndexGH[repo-ctx-index<br/>owner/repo]
    Index --> |GitLab| IndexGL[repo-ctx-index<br/>group/project]
    Index --> |Entire org| IndexGroup[repo-ctx-index-group<br/>organization]

    IndexLocal --> Search
    IndexGH --> Search
    IndexGL --> Search
    IndexGroup --> Search

    Search[Search for Documentation] --> FuzzySearch[repo-ctx-fuzzy-search<br/>query: 'authentication']
    Search --> ExactSearch[repo-ctx-search<br/>libraryName: 'fastapi']

    FuzzySearch --> Results[Search Results<br/>with Library IDs]
    ExactSearch --> Results

    Results --> GetDocs[repo-ctx-docs<br/>libraryId: '/owner/repo']

    GetDocs --> |Filter by topic| GetDocsFiltered[repo-ctx-docs<br/>topic: 'api']
    GetDocs --> |Specific version| GetDocsVersion[repo-ctx-docs<br/>libraryId: '/owner/repo/v1.0.0']
    GetDocs --> |Pagination| GetDocsPaged[repo-ctx-docs<br/>page: 2]

    GetDocsFiltered --> Docs[Documentation Content<br/>in Markdown]
    GetDocsVersion --> Docs
    GetDocsPaged --> Docs
    GetDocs --> Docs

    Docs --> AI[AI processes and responds]

    style Start fill:#e1f5ff
    style Ready fill:#c8e6c9
    style Search fill:#fff9c4
    style Results fill:#ffe0b2
    style Docs fill:#f8bbd0
    style AI fill:#e1f5ff

Available Tools

Tool	Purpose	Example
repo-ctx-index	Index a single repository	Index fastapi/fastapi from GitHub
repo-ctx-index-group	Index entire organization/group	Index all repos in microsoft org
repo-ctx-list	List all indexed repositories	List all indexed repos, optionally by provider
repo-ctx-fuzzy-search	Search with typo tolerance	Search "fasapi" → finds "fastapi"
repo-ctx-search	Exact name search	Search for "fastapi" library
repo-ctx-docs	Retrieve documentation	Get docs for /fastapi/fastapi

📚 Complete Tool Reference: See MCP Tools Reference for detailed parameters, examples, and best practices.

Quick MCP Examples

Index a local repository:

await use_mcp_tool("repo-ctx", "repo-ctx-index", {
  repository: "/home/user/projects/my-app"
});

Index a GitHub public repo (no token needed):

await use_mcp_tool("repo-ctx", "repo-ctx-index", {
  repository: "fastapi/fastapi"
});

List all indexed repositories:

// List all repositories
await use_mcp_tool("repo-ctx", "repo-ctx-list", {});

// List only GitHub repositories
await use_mcp_tool("repo-ctx", "repo-ctx-list", {
  provider: "github"
});

Search for documentation:

const results = await use_mcp_tool("repo-ctx", "repo-ctx-fuzzy-search", {
  query: "authentication",
  limit: 5
});
// Returns: Library IDs like /mygroup/auth-service

Retrieve documentation:

const docs = await use_mcp_tool("repo-ctx", "repo-ctx-docs", {
  libraryId: "/mygroup/auth-service",
  topic: "api"  // Optional: filter by topic
});

Configuration

repo-ctx supports GitLab, GitHub (including Enterprise), and local Git repositories.

Configuration is optional for:

• Local Git repositories (no network access needed)
• GitHub public repositories (rate-limited to 60 requests/hour)

Configuration required for:

• GitLab repositories (requires URL and token)
• GitHub private repositories or higher rate limits (5000/hour)

Configure providers using (in priority order):

1. Command-line arguments (--gitlab-url, --gitlab-token, --github-token, --provider)
2. Specified config file (--config /path/to/config.yaml)
3. Environment variables (GITLAB_URL, GITLAB_TOKEN, GITHUB_TOKEN)
4. Standard config locations:
   • ~/.config/repo-ctx/config.yaml
   • ~/.repo-ctx/config.yaml
   • ./config.yaml (current directory)

📚 Complete Guide: See Multi-Provider Support Guide for detailed configuration options, examples, and troubleshooting.

Quick Start: GitLab Only

export GITLAB_URL="https://gitlab.company.internal"
export GITLAB_TOKEN="glpat-your-token-here"

uvx repo-ctx --index group/project

Quick Start: Local Repositories

# No configuration needed!
uvx repo-ctx --index /path/to/local/repo --provider local

# Or use auto-detection (absolute, relative, or ~ paths)
uvx repo-ctx --index ~/projects/my-repo
uvx repo-ctx --index ./my-repo
uvx repo-ctx --index /home/user/repos/project

Quick Start: GitHub Only

# Public repos (no token needed, subject to 60/hr rate limit)
uvx repo-ctx --index owner/repo

# Private repos or higher rate limits (5000/hr)
export GITHUB_TOKEN="ghp-your-token-here"
uvx repo-ctx --index owner/repo

# Invalid token? Automatic fallback to unauthenticated access for public repos

Quick Start: Both Providers

export GITLAB_URL="https://gitlab.company.com"
export GITLAB_TOKEN="glpat-xxx"
export GITHUB_TOKEN="ghp-xxx"

# Auto-detect provider from path format
uvx repo-ctx --index owner/repo              # → GitHub (2 parts)
uvx repo-ctx --index group/subgroup/project  # → GitLab (3+ parts)

# Or explicitly specify provider
uvx repo-ctx --index owner/repo --provider github
uvx repo-ctx --index group/project --provider gitlab

Config File (Both Providers)

Create ~/.config/repo-ctx/config.yaml:

gitlab:
  url: "https://gitlab.company.internal"
  token: "${GITLAB_TOKEN}"

github:
  url: "https://api.github.com"  # Optional, defaults to public GitHub
  token: "${GITHUB_TOKEN}"        # Optional for public repos

storage:
  path: "~/.repo-ctx/context.db"

Usage

As a Python Library

repo-ctx can be imported and used as a library in your own applications:

import asyncio
from repo_ctx.config import Config
from repo_ctx.core import RepositoryContext

async def main():
    # Initialize (config is optional for local and GitHub public repos)
    config = Config.from_env()
    context = RepositoryContext(config)
    await context.init()

    # Index from local filesystem (no config needed)
    await context.index_repository("/home/user/projects/my-repo", "", provider_type="local")

    # Index from GitLab
    await context.index_repository("mygroup", "myproject", provider_type="gitlab")

    # Index from GitHub (works without token for public repos)
    await context.index_repository("fastapi", "fastapi", provider_type="github")

    # Search across all indexed repos (local + remote)
    results = await context.fuzzy_search_libraries("fastapi", limit=5)
    for result in results:
        print(f"{result.name} (score: {result.score})")

    # Get documentation (works for any indexed repo)
    docs = await context.get_documentation("/fastapi/fastapi")
    print(docs["content"][0]["text"])

asyncio.run(main())

Note: RepositoryContext is the new multi-provider class. GitLabContext is still available as a backward-compatible alias.

📚 Library Documentation:

• Quickstart Guide - Get started in 5 minutes
• API Reference - Complete API documentation
• Examples - Real-world usage examples
• Architecture - How it works internally

CLI Usage

Search for Repositories

# Fuzzy search (typo-tolerant)
uv run repo-ctx search "fastapi"

# Limit results
uv run repo-ctx search "python" --limit 5

# Search within specific repo
uv run repo-ctx search "api" --repo mygroup

List Indexed Repositories

# Detailed view (shows last indexed date)
uv run repo-ctx list

# Simple view (names only)
uv run repo-ctx list --format simple

Example output:

Indexed Repositories (4):

1. /home/user/projects/my-app
   Description: My Local Application
   Default version: main
   Last indexed: 2025-11-25 14:30:00 (2 hours ago)

2. mygroup/fastapi-project
   Description: FastAPI microservice for user authentication
   Default version: main
   Last indexed: 2025-11-23 14:30:00 (3 days ago)

3. owner/public-repo
   Description: Open source project
   Default version: main
   Last indexed: 2025-11-23 09:15:00 (3 days ago)

4. backend/api-server
   Description: Main API server
   Default version: main
   Last indexed: 2025-11-22 09:15:00 (4 days ago)

Note: Paths are cleaned (no trailing slashes), descriptions are stripped of HTML/markdown tags.

Get Documentation

# Get all documentation
uv run repo-ctx docs mygroup/project

# Filter by topic
uv run repo-ctx docs mygroup/project --topic api

# Get specific version
uv run repo-ctx docs mygroup/project/v1.0.0

# Pagination
uv run repo-ctx docs mygroup/project --page 2

Index a Repository

Local Repository:

# No configuration needed!
uvx repo-ctx --index /path/to/local/repo --provider local

# Auto-detect from path format (/, ./, ~/)
uvx repo-ctx --index ~/projects/my-repo
uvx repo-ctx --index ./relative/path/to/repo

GitLab:

export GITLAB_URL="https://gitlab.company.internal"
export GITLAB_TOKEN="your_token"
uvx repo-ctx --index group/project

GitHub:

# Public repo (no token needed)
uvx repo-ctx --index owner/repo

# Private repo or higher rate limits
export GITHUB_TOKEN="ghp-your-token"
uvx repo-ctx --index owner/repo --provider github

With command-line arguments:

# GitLab
uvx repo-ctx \
  --gitlab-url https://gitlab.company.internal \
  --gitlab-token glpat-your-token \
  --index group/subgroup/repository

# GitHub
uvx repo-ctx \
  --github-token ghp-your-token \
  --index owner/repo \
  --provider github

From source:

uv run repo-ctx --index group/subgroup/repository --provider gitlab
uv run repo-ctx --index owner/repo --provider github

📚 More examples: See Multi-Provider Guide for GitHub Enterprise, both providers simultaneously, and advanced usage.

Run as MCP Server

With Claude Code / MCP Clients

Option 1: Using uvx with environment variables (Simplest)

Add to MCP settings (e.g., ~/.config/claude/mcp.json):

{
  "mcpServers": {
    "repo-ctx": {
      "command": "uvx",
      "args": ["repo-ctx"],
      "env": {
        "GITLAB_URL": "https://gitlab.company.internal",
        "GITLAB_TOKEN": "${GITLAB_TOKEN}",
        "GITHUB_TOKEN": "${GITHUB_TOKEN}"
      }
    }
  }
}

Note: Configure one or both providers. The example above shows both GitLab and GitHub configured.

Option 2: Using uvx with config file

{
  "mcpServers": {
    "repo-ctx": {
      "command": "uvx",
      "args": [
        "repo-ctx",
        "--config",
        "/home/user/.config/repo-ctx/config.yaml"
      ]
    }
  }
}

Option 3: From source (for development)

{
  "mcpServers": {
    "repo-ctx": {
      "command": "uv",
      "args": [
        "--directory",
        "/absolute/path/to/repo-ctx",
        "run",
        "repo-ctx"
      ],
      "env": {
        "GITLAB_URL": "https://gitlab.company.internal",
        "GITLAB_TOKEN": "${GITLAB_TOKEN}"
      }
    }
  }
}

With Kiro CLI

Add to ~/.config/kiro/mcp.json:

{
  "mcpServers": {
    "repo-ctx": {
      "command": "uvx",
      "args": ["repo-ctx"],
      "env": {
        "GITLAB_URL": "https://gitlab.company.internal",
        "GITLAB_TOKEN": "${GITLAB_TOKEN}"
      }
    }
  }
}

Then use:

kiro-cli chat

Ask questions like:

• "Search for python in GitLab"
• "Fuzzy search for fastmcp"
• "Get GitLab docs for /group1/subgroup1/repo1"
• "Show me documentation about vector search from GitLab repo group/subgroup/repository"

With GitHub Copilot (VS Code)

Add to .vscode/mcp.json:

{
  "mcpServers": {
    "repo-ctx": {
      "command": "uvx",
      "args": ["repo-ctx"],
      "env": {
        "GITLAB_URL": "https://gitlab.company.internal",
        "GITLAB_TOKEN": "${GITLAB_TOKEN}"
      }
    }
  }
}

Repository Configuration

Add a git_context.json file to your repository root to customize indexing:

{
  "projectTitle": "API Documentation",
  "description": "Internal API documentation and guides",
  "folders": ["docs", "guides"],
  "excludeFolders": ["node_modules", "dist"],
  "excludeFiles": ["CHANGELOG.md"]
}

MCP Tools Reference

For complete MCP tool documentation including workflow diagrams, examples, and best practices, see:

📚 MCP Tools Overview - Quick start and workflow diagram above 📚 MCP Tools Reference Guide - Complete reference with all parameters

Quick Summary:

Tool	Purpose
repo-ctx-index	Index single repository (local, GitHub, GitLab)
repo-ctx-index-group	Index entire organization/group
repo-ctx-list	List all indexed repositories (with optional provider filter)
repo-ctx-fuzzy-search	Search with typo tolerance
repo-ctx-search	Exact name search
repo-ctx-docs	Retrieve documentation content

Note: All tools support local, GitHub, and GitLab repositories with auto-detection or explicit provider selection.

Architecture

graph LR
    Client[AI Assistant<br/>Claude Code / Kiro / Copilot]
    Server[repo-ctx<br/>MCP Server]
    DB[(SQLite<br/>Database)]

    Local[Local Git<br/>Repositories]
    GitHub[GitHub<br/>Public/Private]
    GitLab[GitLab<br/>Self-hosted/Cloud]

    Client <-->|MCP Protocol| Server
    Server <--> DB

    Server <-->|No config needed| Local
    Server <-->|Optional token| GitHub
    Server <-->|URL + token| GitLab

    style Client fill:#e1f5ff
    style Server fill:#c8e6c9
    style DB fill:#fff9c4
    style Local fill:#e8f5e9
    style GitHub fill:#e3f2fd
    style GitLab fill:#fce4ec

Key Features:

• Multi-provider support: Index from local, GitHub, and GitLab simultaneously
• Optional authentication: Local and GitHub public repos work without configuration
• Fast local storage: SQLite database for quick searches
• MCP protocol: Standard interface for AI assistant integration

Troubleshooting

"Provider 'github' not configured" or "Provider 'gitlab' not configured"?

• For local repositories: No config needed! Just use --provider local
• For GitHub public repos: No config needed! Remove --provider or use --provider github
• For GitHub private repos: Set GITHUB_TOKEN environment variable
• For GitLab: Set GITLAB_URL and GITLAB_TOKEN environment variables

GitHub authentication failing?

• Invalid token: Will automatically fall back to unauthenticated access for public repos
• Rate limited (60/hr): Set valid GITHUB_TOKEN for 5000/hr rate limit
• Check token hasn't expired at https://github.com/settings/tokens

Local repository indexing issues?

• Ensure path points to a Git repository (contains .git directory)
• Use absolute paths or ~/ for home directory
• Check you have read access to the repository

Configuration not found?

• Optional for: Local repos, GitHub public repos
• Required for: GitLab (any), GitHub private repos
• Set environment variables: export GITLAB_URL=... GITLAB_TOKEN=...
• Or create config file at: ~/.config/repo-ctx/config.yaml
• Or use CLI args: --gitlab-url --gitlab-token --github-token

Server not starting?

• Configuration is now optional for local and GitHub public repos
• Check configuration if using GitLab or GitHub private repos
• For uvx: Make sure environment variables are set in MCP config

No results when searching?

• Index the repository first: uvx repo-ctx --index owner/repo
• Check database exists: ls ~/.repo-ctx/context.db
• Verify you have access to the repository

GitLab connection errors?

• Verify token has read_api scope
• Check GitLab URL is accessible
• Ensure token hasn't expired
• Test connection: curl -H "PRIVATE-TOKEN: $GITLAB_TOKEN" $GITLAB_URL/api/v4/user

Development

Contributing

Contributions are welcome! See CONTRIBUTING.md for details on:

• Development setup
• Running tests
• Code style guidelines
• Pull request process

Automated Releases

This project uses GitHub Actions for automated releases:

• Tests run on every PR and push to main
• Publishing is automated when version tags are pushed
• GitHub Releases are created automatically with changelogs
• Issue labeling happens automatically for referenced issues

See docs/GITHUB_ACTIONS.md for complete CI/CD documentation.

Quick Release

# Update version in pyproject.toml, then:
git add pyproject.toml
git commit -m "Bump version to 0.1.2"
git tag v0.1.2
git push origin main && git push origin v0.1.2

GitHub Actions will automatically build, test, and publish to PyPI.

See docs/RELEASE_GUIDE.md for detailed release instructions.

Requirements

• Python 3.10+
• uv package manager

For local repositories:

• Git installed
• No network access required

For GitLab:

• GitLab server with API access
• Personal access token with read_api scope

For GitHub:

• Public repos: No authentication required (60 req/hr rate limit)
• Private repos: Personal access token (5000 req/hr rate limit)