43,761 repositories keep their own agent configuration in the open: a CLAUDE.md, a rules file, instructions for Copilot, a skill the project runs on itself. These are not mods to install. They are worth reading for what they reveal — what a maintainer thinks an agent gets wrong.
Building agents7,699Claude Code6,660Data and AI3,668Backend and APIs3,501Languages3,399Planning3,231Git and workflow3,226Code review2,759Testing2,389Memory and context2,368Writing and docs2,333DevOps and cloud2,313Research2,290Frontend2,267Security2,038Project management1,731
All Claude Code31,986 Codex23,430 OpenCode22,372 GitHub Copilot3,564 Gemini CLI1,915 Cursor1,742 Windsurf150 Kiro84
| Project | Stars | Configures | Files | Always loaded |
|---|---|---|---|---|
| Mittenzx/Adastrea-MCP | 1 | Claude Code | 4 | — |
| DrewCyber/astro-mcp | 1 | Codex, OpenCode | 1 | 1,104 tok |
| dereknguyen269/mcp-kb-server | 1 | Claude Code, Kiro | 2 | 820 tok |
| SolanceLab/arachne-discord-mcp One Discord bot, unlimited AI identities. Multi-tenant MCP server with per-entity encrypti | 1 | Claude Code | 1 | 531 tok |
| watahani/authlete-mcp AI generated mcp server for Authlete service&client management | 1 | Claude Code | 1 | 3,682 tok |
| cocodedk/codescan Code scanner and MCP Server | 1 | Claude Code | 1 | 920 tok |
| karenrebecag/analytics-mcp Unified web-analytics MCP server — GA4, Cloudflare, Vercel and Search Console behind one n | 1 | Claude Code | 17 | 637 tok |
| 0xAndoroid/poker-bankroll-tracker-mcp Poker Bankroll Tracker (PBT) MCP server | 1 | Codex, OpenCode | 1 | 62 tok |
| browserkit-dev/browserkit Framework for building site-specific MCP servers over authenticated browser sessions | 1 | Claude Code, Codex, OpenCode | 10 | 5,853 tok |
| chrisjohntapp/suse-mcp MCP server to interact with SUSE Linux ecosystem | 1 | Claude Code, Codex, OpenCode | 2 | 103 tok |
| zombat/scrub-mcp raymondrizzo.com A 22-tool MCP server and CI-ready CLI that cuts cloud LLM token usage on code quality task | 1 | Codex, OpenCode | 1 | 1,716 tok |
| jonathanposovatz/meta-ads-mcp-server MCP Server for Meta Marketing API — campaign performance, creative analysis, audience brea | 1 | Claude Code | 1 | 241 tok |
| furrytailapps/mcp-sgu sgu-mcp.vercel.app MCP server for SGU (Sveriges Geologiska Undersökning) geological data API | 1 | Claude Code | 1 | 203 tok |
| RodrigoFlorencio86/mcp-mercado-bitcoin MCP Server for Mercado Bitcoin — trade, monitor and manage your crypto portfolio via any L | 1 | Claude Code | 1 | 613 tok |
| perilevy/lsp-intelligence LSP-powered code intelligence MCP server for AI coding agents — find references, impact tr | 1 | Claude Code | 1 | 817 tok |
| henrychong-ai/mcp-neo4j-knowledge-graph henrychong.com Neo4j knowledge graph MCP server with temporal versioning, semantic search, and vector emb | 1 | Claude Code | 1 | 8,213 tok |
| tannht/gg-workspace-mcp | 1 | Claude Code | 1 | 723 tok |
| ag4852/memory-bear MCP server-based personal knowledge management system to solve AI assistant memory retri | 1 | Claude Code | 1 | 809 tok |
| andrewlwn77/undetected-chrome-mcp Model Context Protocol server for undetected browser automation. Drop-in replacement for s | 1 | Claude Code | 1 | 1,624 tok |
| BANCS-Norway/claude_session_coordinator MCP server enabling seamless state coordination and communication between multiple Clau | 1 | Claude Code | 1 | 1,814 tok |
| vicquick/nobrainr Persistent memory and knowledge graph for AI agents via MCP — PostgreSQL + pgvector + Olla | 1 | Claude Code | 1 | 7,057 tok |
| mpalermiti/claude-spend mpalermiti.github.io See where your Claude Code tokens go. Deep analytics, date filtering, MCP server. | 1 | Claude Code | 1 | 1,428 tok |
| itsme-shawn/algoKit-mcp algokit-mcp.vercel.app Baekjoon (BOJ) and Programmers MCP Toolkit for algorithm learning. | 1 | Claude Code | 1 | 3,140 tok |
| rc-ventura/fantasy-gamebook-engine rc-ventura.github.io Solo-play Fighting Fantasy-style gamebook engine: an AI Game Master narrates while all ran | 1 | Claude Code | 8 | 3,111 tok |
| Foxhunt/gitlab-mcp-server | 1 | Claude Code, Codex | 1 | — |
| upamune/chrono-mcp | 1 | Codex, OpenCode | 1 | 531 tok |
| imankgoyal/hypothesis-mcp MCP server for the Hypothesis annotation service — gives Claude access to your annotations | 1 | Claude Code | 1 | — |
| ergunsh/ask-user-mcp-app ask-user-mcp-app.vercel.app An MCP App that enables AI agents to ask users multiple questions with tab-based navigatio | 1 | Claude Code, Codex, OpenCode | 2 | 4,575 tok |
| dr-code/tessera Persistent codebase memory for Claude Code — open source MCP server | 1 | Claude Code, Codex, OpenCode | 14 | 3,241 tok |
| codegoddy/codeguardian_mcp | 1 | Claude Code | 1 | 1,904 tok |
| rjeans/banktivity-mcp MCP server for read-only access to Banktivity 8 personal finance databases | 1 | Claude Code | 1 | 1,050 tok |
| artur282/skills-mcp | 1 | Claude Code, Codex | 3 | — |
| florianbuetow/arxiv-smart-mcp MCP server for searching and reading arXiv papers from AI assistants — self-rate-limited t | 1 | Codex, OpenCode | 1 | 653 tok |
| genai-tools/anygpt AnyGPT Tooling (CLI, MCP, SDK) | 1 | Codex, OpenCode | 1 | 354 tok |
| Genealogy-MCP/wikitree-mcp ghcr.io MIRROR - Development at https://gitlab.com/genealogy-mcp/wikitree-mcp | 1 | Claude Code | 1 | 1,695 tok |
| hackerxj2010/mcp-saas-toolkit | 1 | Claude Code | 1 | 713 tok |
| rabbitcannon/pixellab-forge-mcp Pixellab MCP with API access to V2+ | 1 | Claude Code | 1 | 1,150 tok |
| tblakex01/mcp_troubleshooter A Model Context Protocol (MCP) server that provides comprehensive system troubleshooting a | 1 | Claude Code | 1 | 3,673 tok |
| bitovi/freshbooks-mcp-server bitovi.slack.com | 1 | Claude Code, Codex | 1 | — |
| leosakharoff/youtube-music-mcp MCP server for YouTube Music - search, create playlists, and manage tracks via AI assistan | 1 | Claude Code | 1 | 422 tok |
| lbruton/claude-context Code search MCP for Claude Code. Make entire codebase the context for any coding agent. | 1 | Claude Code, Codex, OpenCode | 2 | 1,777 tok |
| kascoded/kas-fastmcp A production-grade FastMCP server that wraps the Notion API as MCP tools. Exposes 15 tool | 1 | Claude Code | 1 | 924 tok |
| Proprius-Labs/pocketscout-mcp An MCP server that aggregates structural, chemical, and literature data from UniProt, PDB, | 1 | Claude Code | 1 | 1,775 tok |
| nerdalytics/mcp-git-sandbox-fix | 1 | Claude Code, Codex, OpenCode | 2 | 417 tok |
| jawache/witness Your AI companion for transforming chaos into order - an Obsidian plugin that runs an MCP | 1 | Claude Code | 2 | 11,430 tok |
| pghoya2956/Google-Drive-MCP-Server A Model Context Protocol (MCP) server that provides secure, scoped access to Google Drive | 1 | Claude Code | 1 | 2,247 tok |
| kovalenko-tech/cortex kovalenko-tech.github.io Project knowledge base for Claude Code — git history, risk scoring, PR decisions, security | 1 | Claude Code | 1 | 118 tok |
| micaelmalta/fetch-mcp Smart fetch & search MCP. HTML→markdown, JSON schema-first, CSS extraction, Playwright bro | 1 | Claude Code | 1 | 1,326 tok |
| oneKn8/mcp-memory MCP server for persistent agent memory with semantic search | 1 | Claude Code | 1 | 349 tok |
| JinYuKiKK0/Stata-Executor-MCP An MCP that enables agents to run Stata do scripts, read the results, and self-correct | 1 | Claude Code | 1 | 1,558 tok |