23,222 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 |
|---|---|---|---|---|
| cyanheads/aviation-weather-mcp-server npmjs.com Fetch METARs, TAFs, PIREPs, and domestic SIGMETs from the NWS Aviation Weather Center via | 2 | Claude Code, Codex, OpenCode | 2 | 12,708 tok |
| capad-xyz/searchts capad.fyi The missing layer between AI and the web. Open-source escalating web unlocker + read/searc | 2 | Claude Code, Codex, OpenCode | 2 | 3,140 tok |
| cyanheads/census-mcp-server npmjs.com Query U.S. Census Bureau data, variables, and geography via MCP. STDIO or Streamable HTTP. | 2 | Claude Code, Codex, OpenCode | 2 | 12,212 tok |
| Vbj1808/retrieval-lens glama.ai MCP server that audits RAG retrieval - logs what chunks the model saw before any answer wa | 2 | Codex, OpenCode | 1 | 737 tok |
| beardfaceguy/daimonos | 2 | Codex, OpenCode | 1 | 7,851 tok |
| calllint/calllint calllint.com Pre-flight risk linting for MCP and agent tools — check the blast radius before your agent | 2 | Codex, GitHub Copilot, OpenCode | 2 | 1,203 tok |
| dfch/biz.dfch.AsdSte100Mcp d-fens.ch An MCP Server for the ASD-STE100 Issue 9 standard. | 2 | Codex, OpenCode | 1 | 2,412 tok |
| benseverndev-oss/goldencheck [Archived] Now part of the Golden Suite monorepo: github.com/benseverndev-oss/goldenmatch | 2 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 6,781 tok |
| orbs-network/spot orbs-network.github.io | 2 | Codex, GitHub Copilot, OpenCode | 2 | 2,894 tok |
| astrogilda/waitbus thepragmaticquant.com A workstation-local event bus: your AI coding agents wait on events instead of polling — a | 2 | Codex, OpenCode | 1 | 567 tok |
| Wolfe-Jam/gemini-faf-mcp faf.one Persistent Project Context for Google Gemini — IANA-registered .faf format · MCP server + | 2 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 1,927 tok |
| beydemirfurkan/todox todox.dev Working memory for developers and their agents — an agent-first task log with decisions, d | 2 | Claude Code, Codex, GitHub Copilot, OpenCode | 7 | 4,277 tok |
| cyanheads/astronomy-mcp-server npmjs.com Offline observational astronomy — planet and moon positions, rise/set, phases, eclipses, a | 2 | Claude Code, Codex, OpenCode | 2 | 14,850 tok |
| elViRafa/agentic-memory Agentic memory fabric - MCP server for persistent memory management | 2 | Claude Code, Codex, GitHub Copilot, OpenCode | 4 | 5,869 tok |
| fabionfsc/nuzo-memory nuzo.com.br Local-first, auditable memory for Codex, Claude Code, and MCP-compatible AI agents. | 2 | Codex, OpenCode | 1 | 1,121 tok |
| chriswu727/argus yichenwu.dev Autonomous QA MCP that tests web and macOS apps like a real testing engineer—and verifies | 2 | Codex, OpenCode | 1 | 2,825 tok |
| davidmosiah/apple-health-mcp wellness.delx.ai Unofficial local-first Apple Health MCP server — parses your local export and exposes acti | 2 | Codex, OpenCode | 1 | 162 tok |
| davidmosiah/google-ads-intent-mcp Dry-run-first Google Ads search-term intent analyzer and negative-keyword MCP for agents. | 2 | Codex, OpenCode | 1 | 167 tok |
| lm203688/aishield aishield.ai 🛡️ Agent-native AI tool security scanner. Scan MCP/Skill/GPT/Prompt for security risks. 4 | 2 | Claude Code, Codex, OpenCode | 2 | 1,596 tok |
| hshintelligence/agent-scrape agent-scrape.healingsunhaven.workers.dev Pay-per-call web scraping for AI agents — no signup, no API keys, just USDC. x402-monetize | 2 | Codex, OpenCode | 1 | 360 tok |
| liuh886/ownly liuh886.github.io Own less, Live more, Decide better | 2 | Claude Code, Codex, OpenCode | 2 | 844 tok |
| livevariant/livevariant livevariant.com Open-source adaptive A/B testing where the whole test lives in a URL: no accounts, no API | 2 | Claude Code, Codex, OpenCode | 3 | 5,653 tok |
| genecell/preprint-fulltext Retrieve full text of bioRxiv, medRxiv & arXiv preprints as structured sections — to groun | 2 | Codex, GitHub Copilot, OpenCode | 2 | 2,962 tok |
| matematicsolutions/mcp-saos matematicsolutions.com MCP server for Polish common and Supreme Court case law via the SAOS API - verifiable cita | 2 | Claude Code, Codex, OpenCode | 3 | 1,183 tok |
| madamak/apache-airflow-mcp-server pypi.org Independent incident-response MCP server for Apache Airflow: diagnose failed DAGs from UI | 2 | Codex, OpenCode | 1 | 1,534 tok |
| kapella-hub/FirekeepHQ firekeep.ai Self-hosted shared context, memory, coordination, and evidence for Claude Code, Codex, Kir | 2 | Claude Code, Codex, OpenCode | 2 | 7,523 tok |
| laffeyp/cascade-img greenrosesystems.com MCP server for LLM-operable Midjourney image generation — compose, generate, inspect with | 2 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 4 | 9,467 tok |
| mirnoorata/codexa Codex-native codebase intelligence: deterministic repo context, change-plan drift review, | 2 | Claude Code, Codex, OpenCode | 1 | 629 tok |
| nazar256/memheaven nazar256.github.io Self-hosted, searchable remote MCP memory server you own for ChatGPT and AI agents on Clou | 2 | Codex, OpenCode | 1 | 239 tok |
| finfin/mermaid-mcp-app Interactive Mermaid Editor inside Claude Desktop / VSCode Copilot | 2 | Claude Code, Codex | 1 | — |
| kaneg/k8s-mcp-go Safe Kubernetes access for AI agents via MCP. Read-only by default, with explicit permissi | 2 | Codex, OpenCode | 1 | 282 tok |
| ravendb/ravendb-mcp | 2 | Codex, OpenCode | 1 | 259 tok |
| pvliesdonk/scholar-mcp | 2 | Claude Code, Codex, OpenCode | 13 | 5,876 tok |
| rctruta/sql-benchmarks-dagster SQL Benchmarking Laboratory using Dagster for Orchestration | 2 | Codex, OpenCode | 1 | 1,830 tok |
| divyanshu-iitian/SearchForge divyanshu-iitian.github.io Open-source web search API and MCP server for LLMs, AI agents, and RAG. Free sources, self | 2 | Codex, OpenCode | 1 | 118 tok |
| hugolsramos01-bit/mcp-agentic-server Turn Claude, ChatGPT, and any LLM into a safe, bloat-free Autonomous Coding Agent with sem | 2 | Codex, OpenCode | 1 | 424 tok |
| szhygulin/vaultpilot-mcp vaultpilot-mcp.ai Safety first. Hardware-verified DeFi for AI agents — designed for when the AI can be compr | 2 | Claude Code, Codex, OpenCode | 2 | 7,210 tok |
| tiagosilva07/zyrax-guard zyrax.io Audit your AI agent configs before you run them — prompt injection, rogue MCP servers, cre | 2 | Claude Code, Codex, OpenCode | 12 | 1,130 tok |
| tyler-mitchell/type-atlas 🧠 TypeScript code intelligence MCP server for coding agents — 🗺️ project-aware navigati | 2 | Claude Code, Codex, OpenCode | 4 | 5,987 tok |
| typesensekit/typesensekit typesensekit.vercel.app 95 typed Typesense operations for humans and AI agents—one CLI and MCP server, read-only b | 2 | Claude Code, Codex, OpenCode | 2 | 84 tok |
| joinwell52-AI/FCoP joinwell52-ai.github.io FCoP — file-based behavior-governance protocol for multi-agent AI. Tasks, reports, review, | 2 | Codex, OpenCode | 1 | 192 tok |
| zxhwolfe-dev/aiworkstation-open-source-intelligence useaistation.com Evidence-backed research, comparison, license verification, and stack planning for open-so | 2 | Codex, OpenCode | 1 | 181 tok |
| mikluko/jmap-mcp | 2 | Codex, OpenCode | 1 | 2,086 tok |
| vish288/mcp-coda pypi.org MCP server for Coda API — 54 tools, 12 resources, 5 prompts. Docs, pages, tables, rows, fo | 2 | Codex, Gemini CLI, OpenCode | 2 | 2,292 tok |
| yannmenec/inspectrum Catch the bad plan before you spend the tokens. Cross-LLM peer review via MCP. | 2 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 2,681 tok |
| zseta/progi progi.dev Progi is an MCP-native workflow engine for your AI harness | 2 | Claude Code, Codex, OpenCode | 2 | 1,890 tok |
| robertn702/webmcp-today webmcp.today Community registry of WebMCP packages for sites that have not implemented WebMCP. | 2 | Claude Code, Codex, OpenCode | 2 | 2,594 tok |
| vinhphatfsg/rulemorph rulemorph.com YAML-based declarative data transformation engine - transform CSV/JSON to JSON without cod | 2 | Codex, OpenCode | 1 | 1,663 tok |
| vitaliemiron/cookidoo-mcp vitaliemiron.github.io Unofficial Cookidoo MCP server for AI-assisted Thermomix recipes, guided cooking, meal pla | 2 | Codex, OpenCode | 1 | 5,750 tok |
| xyzzylabs/tc39-mcp mcp.xyzzylabs.ai MCP for the TC39 specs (not affiliated with Ecma/TC39). SHA-pinned ECMA-262 + ECMA-402, AO | 2 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 1,590 tok |