43,652 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 agents7,588Claude Code6,636Data and AI3,676Backend and APIs3,496Languages3,402Planning3,219Git and workflow3,187Code review2,745Testing2,374Memory and context2,364DevOps and cloud2,310Writing and docs2,309Research2,295Frontend2,261Security2,021Productivity1,715
All Claude Code31,998 Codex23,222 OpenCode22,170 GitHub Copilot3,550 Gemini CLI1,918 Cursor1,738 Windsurf137 Kiro80
| Project | Stars | Configures | Files | Always loaded |
|---|---|---|---|---|
| HuginnIndustries/CodeCartographer codecarto.dev Evidence-backed reverse engineering and human-gated software planning for Pi and MCP codin | 4 | Claude Code | 1 | 2,276 tok |
| satya-janghu/agent-skills A collection of high-quality, agent-agnostic AI assistant skills installable via the unive | 4 | Claude Code | 1 | 1,318 tok |
| StepFunctionLLC/mcp-server-cantera An MCP server wrapped around Cantera to facilitate use by an LLM | 4 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 2,463 tok |
| HNakamura33/task-composer | 4 | Claude Code | 1 | 3,588 tok |
| Undermove/TraleBot Bot that helps translate and learn new english words by quiz on every weekend. | 4 | Claude Code | 10 | 2,720 tok |
| femitfash/copilot-engine Reusable backend for building Claude-powered AI copilots with agentic tool use, SSE stream | 4 | Claude Code | 3 | 1,555 tok |
| Sunbird-Knowlg/knowledge-platform-jobs Background and pipeline jobs of Knowledge Platform | 4 | Claude Code | 6 | 947 tok |
| qut-dmrc/buttermilk | 4 | Claude Code, Codex, Gemini CLI, OpenCode | 10 | 75 tok |
| panoptes/panoptes-utils panoptes.github.io A set of Astronomical utility functions. PANOPTES style. :hammer_and_wrench: :telescope: : | 4 | Codex, GitHub Copilot, Gemini CLI, OpenCode | 3 | 8,008 tok |
| DanceNitra/agora dancenitra.github.io An autonomous research organization: agents that do grounded research, test hypotheses wit | 3 | Claude Code | 17 | — |
| jackin-project/jackin-dev Development-workflow skills plugin for the jackin project — spec-driven feature, PR, resea | 3 | Claude Code, Codex, OpenCode | 2 | 209 tok |
| astandrik/local-ydb-toolkit local-ydb-toolkit.ydb-qdrant.tech Codex skill and MCP server for operating Docker-based local YDB deployments, locally or ov | 3 | Codex, OpenCode | 1 | 2,200 tok |
| thesanjeetc/Parselbox An embeddable Python runtime where AI agents call tools as code. Powered by Deno and Pyodi | 3 | Claude Code | 2 | 987 tok |
| yegor256/critic A collection of skills for an AI agent that helps writing texts | 3 | Claude Code | 1 | 101 tok |
| a2uicatalog/a2ui a2uicatalog.ai Typed UI vocabulary for AI agents using the a2ui protocol — 474 atoms an agent composes i | 3 | Claude Code, Codex, Gemini CLI, OpenCode | 5 | 2,597 tok |
| xonika9/agent-skills skills.sh Practical Agent Skills for source-backed research, controlled browser sessions, idea criti | 3 | Claude Code, Codex, OpenCode | 2 | 784 tok |
| tooppoo/enozunu | 3 | Claude Code, Codex, OpenCode | 2 | 680 tok |
| totorospirit/cc-openclaw-bridge Claude Code plugin for user interaction via OpenClaw (Telegram, Signal, Discord) | 3 | Claude Code | 1 | 449 tok |
| max-listov/stitchkit Contract-first backend framework for Bun and Node — one defineContract() into an HTTP API, | 3 | Claude Code, Codex, OpenCode | 2 | 6,518 tok |
| dsswift/ion Headless multi-provider LLM agent runtime. Single Go binary, 14+ providers, 70+ extension | 3 | Claude Code, Codex, OpenCode | 1 | 24,178 tok |
| jackychanisnotme/ccNexus Smart API endpoint rotation proxy and local API provider for Codex CLI/GUI, Claude Code CL | 3 | Claude Code, Codex, OpenCode | 2 | 5,065 tok |
| tkpratardan/lemma AI harness for DS/ML workflows. | 3 | Codex, GitHub Copilot, OpenCode | 2 | 558 tok |
| jwilger/ai-plugins Development plugins for codex | 3 | Codex, OpenCode | 1 | 3,976 tok |
| IT-HUSET/andthen Coding agent toolkit with workflows, guidelines, and plugins for Claude Code and other age | 3 | Claude Code, Codex, OpenCode | 4 | 3,511 tok |
| liratanak/openproject-mcp OpenProject MCP | 3 | Claude Code | 1 | 3,771 tok |
| scrollDynasty/BrowserMesh npmjs.com Multi-agent browser MCP runtime for isolated, persistent, parallel Playwright sessions. Ru | 3 | Claude Code, Codex, OpenCode | 7 | 9,540 tok |
| siddhartha-yz/dsh-mcp-gateway Connect ChatGPT Web to DSH through OAuth + MCP, exposing DSH-native tools, skills, policie | 3 | Codex, OpenCode | 1 | 1,166 tok |
| ShiftinBits/constellation-mcp docs.constellationdev.io Code Intelligence Platform for AI Coding Assistants | 3 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 5 | 2,138 tok |
| Digital-Defiance/ai-capabilities-suite digital-defiance.github.io Give AI agents superpowers with MCP servers for capabilities they've never had before. | 3 | Codex, OpenCode | 1 | 105 tok |
| Dhi13man/oorep-mcp npmjs.com Model Context Protocol (MCP) server and client SDK that provides AI assistants with access | 3 | Codex, OpenCode | 1 | 917 tok |
| u2n4/video-url-analyzer-mcp MCP server to analyze YouTube, TikTok & Instagram videos from URL — transcripts, AI insigh | 3 | Claude Code, Codex, OpenCode | 2 | 3,850 tok |
| metaforismo/serve-droid Browser streaming, semantic inspection, Logcat, and agent control for Android devices. | 3 | Codex, OpenCode | 1 | 829 tok |
| Trusty-Squire/trusty-squire Trusty Squire signs up / in to websites for you so you don’t have to. | 3 | Claude Code, Codex, OpenCode | 2 | 25,763 tok |
| phishark-git/phishark-playwright-mcp Playwright MCP with PhiShark preflight and browser-deep protection | 3 | Claude Code, Codex, OpenCode | 2 | 643 tok |
| Divine-Creative-Ministries/bible-cli A Bible study operating system for AI agents: offline CLI + MCP server for passage retriev | 3 | Claude Code | 1 | 880 tok |
| logfoxai/callspec callspec.logfox.ai One spec powers input-validated API, docs UI, OpenAPI, MCP, and typed clients. | 3 | Codex, OpenCode | 1 | 24 tok |
| Auctalis/nocturnusai nocturnus.ai Verified knowledge for AI agents. Compress context, extract and store facts, define rules | 3 | Claude Code, Codex, OpenCode | 7 | 8,907 tok |
| mjucius/cozi_mcp Unofficial MCP to talk with your Cozi Family Organizer account. | 3 | Claude Code | 1 | 1,906 tok |
| aabhisrv/Spiderbrain.ai-Coremind spiderbrain.ai The understanding layer for your repo: an MIT reader (@spiderbrain/read) and the .spiderbr | 3 | Codex, OpenCode | 1 | 443 tok |
| nukIeer/higgsfield-unlimited-mcp Complete MCP server for Higgsfield AI in unlimited mode — all image/video/audio models | 3 | Claude Code | 1 | — |
| EvanL1/AetherEdge aetheriot.ai Deterministic edge runtime for agent-configured physical spaces — Kernel, CLI, and SDK for | 3 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 1,927 tok |
| larsbaunwall/Unlinked Bring your LinkedIn professional profile into AI assistants | 3 | Claude Code, Codex, OpenCode | 5 | 1,155 tok |
| sharebook-kr/pykrx-mcp | 3 | GitHub Copilot | 1 | 2,226 tok |
| a-lottes/aSPARK-graph aspark.lottes.dev A lean, local knowledge graph that joins a repo's code to its aSPARK delivery artifacts (s | 3 | Claude Code | 1 | 3,474 tok |
| marcoaperez/actual-budget-mcp-es MCP server for Actual Budget — LLM-ready financial assistant with correct semantics, unit | 3 | Claude Code | 1 | 2,154 tok |
| lukegskw/caldav-mcp A TypeScript MCP server for iCloud Calendar with native multi-VALARM support. | 3 | Codex | 2 | — |
| Enreign/pagerunner pagerunner.dev The browser layer that learns. Connects any MCP client to your real Chrome profiles — alre | 3 | Claude Code | 1 | 2,477 tok |
| AceDataCloud/VeoMCP platform.acedata.cloud MCP server for Google Veo video generation via Ace Data Cloud. | 3 | Claude Code, GitHub Copilot | 2 | 812 tok |
| GeiserX/cashpilot-mcp MCP Server for CashPilot — monitor passive income earnings, manage services, and control f | 3 | Claude Code | 1 | 232 tok |
| SIFR0-dev/djzs-AI djzs.ai DJZS audits the reasoning behind an autonomous agent's move before capital is committed, a | 3 | Claude Code | 1 | 8,775 tok |