{ "name": "Repo Atlas", "url": "https://OskarMatras.com/Projects/RepoAtlas/", "maintainer": "Oskar Matras", "verified": "2026-10-15", "howToUse": [ "Match the task to a category using reach_for_it_when.", "Prefer repos flagged pick, and read not_for before choosing.", "Use decision_rule to choose between close alternatives.", "Verify activity, licence and install scripts before running anything." ], "categories": [ { "id": "extend", "title": "Extend your agent", "summary": "MCP servers, skills and docs that give an AI model hands, eyes and knowledge it was never trained on.", "reach_for_it_when": "the model has to touch a service (GitHub, a browser, a database), needs current library docs, or needs a packaged capability such as producing a .docx or .pptx", "decision_rule": "Need current API docs: context7. Need GitHub: github-mcp-server. Need a browser: playwright-mcp. Need a repeatable procedure or document format: anthropics/skills. Building your own tool server: fastmcp. Need a server for service X: awesome-mcp-servers.", "repos": [ { "repo": "modelcontextprotocol/servers", "url": "https://github.com/modelcontextprotocol/servers", "what": "Reference MCP servers maintained by the MCP project: filesystem, git, fetch, memory, sequential thinking and more.", "use_when": "You want a known-good tool server, or a template for writing your own.", "not_for": null, "tags": [ "mcp", "reference", "filesystem", "git" ], "pick": true, "official": true, "stars": 91288, "language": "JavaScript", "license": "MIT → Apache-2.0", "last_push": "2026-10-13", "archived": false }, { "repo": "anthropics/skills", "url": "https://github.com/anthropics/skills", "what": "Anthropic's public Agent Skills: folders of instructions and scripts that teach Claude a task, including creating .docx, .pdf, .pptx and .xlsx files.", "use_when": "A task has a repeatable procedure (office documents, design, testing) that the agent should follow reliably.", "not_for": null, "tags": [ "skills", "documents", "claude" ], "pick": true, "official": true, "stars": 181376, "language": "Python", "license": "Per skill", "last_push": "2026-10-09", "archived": false }, { "repo": "upstash/context7", "url": "https://github.com/upstash/context7", "what": "MCP server that pulls version-specific, up-to-date library documentation straight into the prompt.", "use_when": "The model keeps using outdated or invented APIs for a fast-moving library.", "not_for": null, "tags": [ "docs", "mcp", "hallucination" ], "pick": true, "official": false, "stars": 63096, "language": "TypeScript", "license": "MIT", "last_push": "2026-10-15", "archived": false }, { "repo": "github/github-mcp-server", "url": "https://github.com/github/github-mcp-server", "what": "GitHub's official MCP server: read repositories, search code, manage issues, pull requests and Actions.", "use_when": "The agent has to work with GitHub beyond what plain git does.", "not_for": null, "tags": [ "github", "mcp", "issues", "pull-requests" ], "pick": false, "official": true, "stars": 33646, "language": "Go", "license": "MIT", "last_push": "2026-10-15", "archived": false }, { "repo": "microsoft/playwright-mcp", "url": "https://github.com/microsoft/playwright-mcp", "what": "Playwright as an MCP server: the agent drives a real browser through structured page snapshots instead of screenshots.", "use_when": "The agent must click, fill in and verify things in a web app.", "not_for": null, "tags": [ "browser", "mcp", "testing" ], "pick": false, "official": true, "stars": 38202, "language": "TypeScript", "license": "Apache-2.0", "last_push": "2026-10-08", "archived": false }, { "repo": "PrefectHQ/fastmcp", "url": "https://github.com/PrefectHQ/fastmcp", "what": "The fast, Pythonic way to build MCP servers and clients: decorate a function and it becomes a tool.", "use_when": "You want to expose your own script, API or database to an agent in under an hour.", "not_for": null, "tags": [ "mcp", "python", "sdk" ], "pick": true, "official": false, "stars": 28089, "language": "Python", "license": "Apache-2.0", "last_push": "2026-10-15", "archived": false }, { "repo": "punkpeye/awesome-mcp-servers", "url": "https://github.com/punkpeye/awesome-mcp-servers", "what": "The largest curated directory of MCP servers, grouped by what they connect to.", "use_when": "You need an MCP server for a specific service and want to see what already exists.", "not_for": "Quality varies a lot. Read a server's source before handing it credentials.", "tags": [ "directory", "mcp", "discovery" ], "pick": false, "official": false, "stars": 96397, "language": null, "license": "MIT", "last_push": "2026-10-15", "archived": false } ] }, { "id": "code", "title": "Let agents code", "summary": "Agents that read a whole codebase, change it and run it, plus the tool that makes sweeping changes safe.", "reach_for_it_when": "a task spans many files, needs to run commands and tests, or has to be handed off and left to finish", "decision_rule": "Interactive work in the terminal: claude-code, or codex as a second opinion. Hand off a self-contained task to run unattended: OpenHands. Mechanical change across many call sites: ast-grep.", "repos": [ { "repo": "anthropics/claude-code", "url": "https://github.com/anthropics/claude-code", "what": "Anthropic's agentic coding tool for the terminal: reads a codebase, edits files, runs commands, and extends through skills, hooks, subagents and MCP.", "use_when": "You want an agent that works across a whole repository from the command line.", "not_for": "Proprietary licence: the repository holds docs, issues and plugin examples, not the product source.", "tags": [ "agent", "terminal", "claude" ], "pick": true, "official": true, "stars": 151054, "language": "TypeScript", "license": "Proprietary", "last_push": "2026-10-15", "archived": false }, { "repo": "openai/codex", "url": "https://github.com/openai/codex", "what": "OpenAI's open-source coding agent for the terminal: reads the repo, edits files and runs commands in a sandbox.", "use_when": "You want a second, independent terminal agent, or you are already on OpenAI models.", "not_for": null, "tags": [ "agent", "terminal", "openai" ], "pick": false, "official": true, "stars": 129387, "language": "Rust", "license": "Apache-2.0", "last_push": "2026-10-15", "archived": false }, { "repo": "OpenHands/OpenHands", "url": "https://github.com/OpenHands/OpenHands", "what": "Autonomous software-engineering agent that works inside a sandbox: writes code, runs commands and browses the web.", "use_when": "You want to hand off a self-contained task and let it run in isolation.", "not_for": "Overkill for quick edits where a terminal agent is enough.", "tags": [ "agent", "sandbox", "autonomous" ], "pick": false, "official": false, "stars": 90990, "language": "TypeScript", "license": "MIT", "last_push": "2026-10-15", "archived": false }, { "repo": "ast-grep/ast-grep", "url": "https://github.com/ast-grep/ast-grep", "what": "Structural code search, lint and rewrite built on syntax trees instead of text, for many languages.", "use_when": "A refactor touches hundreds of call sites and regex would be fragile.", "not_for": null, "tags": [ "refactor", "search", "cli" ], "pick": true, "official": false, "stars": 16244, "language": "Rust", "license": "MIT", "last_push": "2026-10-15", "archived": false } ] }, { "id": "web", "title": "Reach the web", "summary": "Fetch, drive and download from the live web, including the pages that have no API.", "reach_for_it_when": "the answer lives on a web page, behind a login, or inside a video", "decision_rule": "Page content as clean text: firecrawl. Unknown steps on a site with no API: browser-use. Known steps or tests: playwright. Transcript, audio or metadata from a video: yt-dlp.", "repos": [ { "repo": "firecrawl/firecrawl", "url": "https://github.com/firecrawl/firecrawl", "what": "Turns websites into clean, LLM-ready markdown or structured data through crawl, scrape, search and extract APIs.", "use_when": "An agent needs the contents of web pages, or a whole site, in readable form.", "not_for": null, "tags": [ "scraping", "crawling", "markdown" ], "pick": true, "official": false, "stars": 191879, "language": "TypeScript", "license": "AGPL-3.0", "last_push": "2026-10-15", "archived": false }, { "repo": "browser-use/browser-use", "url": "https://github.com/browser-use/browser-use", "what": "Python library that lets an LLM operate a real browser to finish multi-step tasks on sites that have no API.", "use_when": "The job needs logging in, clicking through and filling in forms on a site you cannot call directly.", "not_for": null, "tags": [ "browser", "agent", "automation" ], "pick": false, "official": false, "stars": 118091, "language": "Python", "license": "MIT", "last_push": "2026-10-15", "archived": false }, { "repo": "microsoft/playwright", "url": "https://github.com/microsoft/playwright", "what": "Reliable cross-browser automation and testing in code, for Chromium, Firefox and WebKit.", "use_when": "You need deterministic scripted browsing, scraping of JavaScript-heavy pages, or end-to-end tests.", "not_for": "The steps are not known in advance. Use browser-use instead.", "tags": [ "browser", "testing", "scraping" ], "pick": true, "official": false, "stars": 97789, "language": "TypeScript", "license": "Apache-2.0", "last_push": "2026-10-15", "archived": false }, { "repo": "yt-dlp/yt-dlp", "url": "https://github.com/yt-dlp/yt-dlp", "what": "Command-line downloader for video and audio from thousands of sites that also fetches metadata and subtitles.", "use_when": "You need a transcript, subtitle track, audio or metadata from a video page.", "not_for": "Only for content you have the right to download.", "tags": [ "video", "audio", "transcripts", "cli" ], "pick": true, "official": false, "stars": 198066, "language": "Python", "license": "Unlicense", "last_push": "2026-10-10", "archived": false } ] }, { "id": "docs", "title": "Read any document", "summary": "Turn PDFs, Office files and scans into text a model can use, and turn text back into deliverables.", "reach_for_it_when": "the input is a file rather than text, or the output has to be a specific file format", "decision_rule": "Any file to quick text: markitdown. Tables and layout must survive: docling. Converting between document formats: pandoc.", "repos": [ { "repo": "microsoft/markitdown", "url": "https://github.com/microsoft/markitdown", "what": "Converts Office files, PDFs, images, audio, HTML and more into Markdown that language models read well.", "use_when": "You want one call that turns almost any file into model-ready text.", "not_for": null, "tags": [ "markdown", "pdf", "office", "convert" ], "pick": true, "official": false, "stars": 190414, "language": "Python", "license": "MIT", "last_push": "2026-10-04", "archived": false }, { "repo": "docling-project/docling", "url": "https://github.com/docling-project/docling", "what": "Layout-aware document parsing that keeps tables, reading order and structure from PDFs and Office files.", "use_when": "Tables and layout matter, as in financial reports and scientific papers.", "not_for": null, "tags": [ "pdf", "tables", "parsing", "rag" ], "pick": false, "official": false, "stars": 68938, "language": "Python", "license": "MIT", "last_push": "2026-10-15", "archived": false }, { "repo": "jgm/pandoc", "url": "https://github.com/jgm/pandoc", "what": "The universal document converter: Markdown, HTML, LaTeX, docx, EPUB and dozens of other formats in either direction.", "use_when": "You need to produce or convert a deliverable format from plain text.", "not_for": null, "tags": [ "convert", "markdown", "docx", "latex" ], "pick": true, "official": false, "stars": 46601, "language": "Haskell", "license": "GPL-2.0", "last_push": "2026-10-15", "archived": false } ] }, { "id": "build", "title": "Build agents and AI apps", "summary": "Frameworks and plumbing for putting a model inside your own product.", "reach_for_it_when": "you are writing code that calls a model, uses tools, or has to keep state across steps", "decision_rule": "Stateful multi-step agent: langgraph. Typed, validated outputs in Python: pydantic-ai. AI feature in a TypeScript or React app: vercel/ai. Many providers behind one API: litellm.", "repos": [ { "repo": "langchain-ai/langgraph", "url": "https://github.com/langchain-ai/langgraph", "what": "Low-level framework for stateful, long-running agents modelled as graphs, with persistence and human-in-the-loop steps.", "use_when": "You are building a multi-step agent that needs state, branching, retries and checkpoints.", "not_for": null, "tags": [ "agents", "python", "orchestration" ], "pick": true, "official": false, "stars": 43321, "language": "Python", "license": "MIT", "last_push": "2026-10-15", "archived": false }, { "repo": "pydantic/pydantic-ai", "url": "https://github.com/pydantic/pydantic-ai", "what": "Type-safe Python agent framework from the Pydantic team: validated structured outputs and tools across model providers.", "use_when": "You want agents with typed, validated outputs and a small API.", "not_for": null, "tags": [ "agents", "python", "structured-output" ], "pick": false, "official": false, "stars": 20644, "language": "Python", "license": "MIT", "last_push": "2026-10-15", "archived": false }, { "repo": "vercel/ai", "url": "https://github.com/vercel/ai", "what": "The AI SDK for TypeScript: one API for text, structured output, tools and streaming UI across providers.", "use_when": "You are adding an AI feature to a TypeScript or React web app.", "not_for": null, "tags": [ "typescript", "streaming", "web" ], "pick": true, "official": false, "stars": 27335, "language": "TypeScript", "license": "Apache-2.0", "last_push": "2026-10-15", "archived": false }, { "repo": "BerriAI/litellm", "url": "https://github.com/BerriAI/litellm", "what": "One OpenAI-style interface, as SDK or proxy, to 100+ model providers, with fallbacks and spend tracking.", "use_when": "You want to swap or mix models without rewriting code.", "not_for": null, "tags": [ "gateway", "providers", "proxy" ], "pick": false, "official": false, "stars": 61330, "language": "Python", "license": "MIT + enterprise", "last_push": "2026-10-15", "archived": false } ] }, { "id": "automate", "title": "Automate and run locally", "summary": "Run models on your own machine and wire work together so it happens without you.", "reach_for_it_when": "the job should run on a schedule or trigger, offline, or on private data", "decision_rule": "Triggers and glue between apps: n8n. A private or offline model: ollama. Transcribe audio: faster-whisper. Generate images or video in a repeatable pipeline: ComfyUI.", "repos": [ { "repo": "n8n-io/n8n", "url": "https://github.com/n8n-io/n8n", "what": "Workflow automation with hundreds of integrations, AI nodes and a visual editor, self-hostable.", "use_when": "You want triggers, schedules and glue between apps without writing a service.", "not_for": "Fair-code licence, not OSI open source.", "tags": [ "automation", "workflow", "self-host" ], "pick": true, "official": false, "stars": 207517, "language": "TypeScript", "license": "Sustainable Use", "last_push": "2026-10-15", "archived": false }, { "repo": "ollama/ollama", "url": "https://github.com/ollama/ollama", "what": "Run open language models locally with one command and an OpenAI-compatible API.", "use_when": "You need a private, offline or free-to-call model.", "not_for": null, "tags": [ "local", "llm", "inference" ], "pick": true, "official": false, "stars": 183301, "language": "Go", "license": "MIT", "last_push": "2026-10-15", "archived": false }, { "repo": "SYSTRAN/faster-whisper", "url": "https://github.com/SYSTRAN/faster-whisper", "what": "Fast reimplementation of Whisper speech-to-text on CTranslate2.", "use_when": "You need accurate transcripts of recordings, locally.", "not_for": null, "tags": [ "speech", "transcription", "audio" ], "pick": true, "official": false, "stars": 25878, "language": "Python", "license": "MIT", "last_push": "2026-10-15", "archived": false }, { "repo": "Comfy-Org/ComfyUI", "url": "https://github.com/Comfy-Org/ComfyUI", "what": "Node-based engine for image, video and audio generation with a huge ecosystem of models and custom nodes.", "use_when": "You need repeatable, scriptable image or video generation pipelines.", "not_for": null, "tags": [ "images", "diffusion", "workflow" ], "pick": false, "official": false, "stars": 137700, "language": "Python", "license": "GPL-3.0", "last_push": "2026-10-15", "archived": false } ] }, { "id": "terminal", "title": "Terminal superpowers", "summary": "Small, sharp command-line tools that agents and humans both lean on every day.", "reach_for_it_when": "you are searching, reshaping or converting things at the command line", "decision_rule": "Find text in files: ripgrep. Run a Python script with its dependencies: uv. Reshape JSON: jq. Convert or cut audio and video: ffmpeg.", "repos": [ { "repo": "BurntSushi/ripgrep", "url": "https://github.com/BurntSushi/ripgrep", "what": "Very fast recursive text search that respects .gitignore.", "use_when": "Searching a large codebase or a folder of logs.", "not_for": null, "tags": [ "search", "cli", "rust" ], "pick": true, "official": false, "stars": 69132, "language": "Rust", "license": "Unlicense", "last_push": "2026-08-04", "archived": false }, { "repo": "astral-sh/uv", "url": "https://github.com/astral-sh/uv", "what": "Extremely fast Python package and project manager that also runs single-file scripts with inline dependencies.", "use_when": "Running or sharing Python scripts without setting up an environment first.", "not_for": null, "tags": [ "python", "packaging", "cli" ], "pick": true, "official": false, "stars": 90800, "language": "Rust", "license": "Apache-2.0", "last_push": "2026-10-15", "archived": false }, { "repo": "jqlang/jq", "url": "https://github.com/jqlang/jq", "what": "Command-line JSON processor for filtering, reshaping and extracting data.", "use_when": "Taming API responses and JSON logs.", "not_for": null, "tags": [ "json", "cli" ], "pick": false, "official": false, "stars": 35826, "language": "C", "license": "MIT", "last_push": "2026-10-13", "archived": false }, { "repo": "FFmpeg/FFmpeg", "url": "https://github.com/FFmpeg/FFmpeg", "what": "The complete toolkit for converting, trimming, merging and processing audio and video.", "use_when": "Any media conversion, extraction or editing task.", "not_for": null, "tags": [ "video", "audio", "convert", "cli" ], "pick": true, "official": false, "stars": 65233, "language": "C", "license": "LGPL / GPL", "last_push": "2026-10-15", "archived": false } ] } ] }