How real projects configure their agents

43,786 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 agents7,720Claude Code6,662Data and AI3,665Backend and APIs3,500Languages3,396Planning3,238Git and workflow3,234Code review2,760Testing2,394Memory and context2,365Writing and docs2,333DevOps and cloud2,315Research2,289Frontend2,264Security2,036Project management1,736

All Claude Code31,986 Codex23,463 OpenCode22,407 GitHub Copilot3,565 Gemini CLI1,914 Cursor1,740 Windsurf150 Kiro84

Project Stars Configures Files Always loaded
ariaxhan/agentmailkit Scheduled, LLM-written email digests that run on your machine, read your own files, and se 1 Claude Code, Codex, OpenCode 2 5,148 tok
arkheiaai/arkheia-mcp Arkheia MCP Trust Server + Enterprise Proxy — fabrication detection for enterprise AI pipe 1 Codex, OpenCode 1 1,647 tok
KG-NINJA/HyperXosist-Agent 1 Codex, OpenCode 1 4,231 tok
Lakshmi-Chakradhar-Vijayarao/credence-ai 1 Claude Code 1 1,782 tok
chrischall/gogcli-mcp Google Sheets (and more) for Claude via gogcli — an MCP server 1 Claude Code, Codex, OpenCode 2 18,257 tok
AceDataCloud/KlingMCP platform.acedata.cloud MCP server for Kling AI video generation via AceDataCloud API 1 Claude Code, GitHub Copilot 2 825 tok
AceDataCloud/HailuoMCP platform.acedata.cloud MCP server for Hailuo (MiniMax) AI video generation via AceDataCloud API 1 Claude Code, GitHub Copilot 2 818 tok
Anarkitty1/semantic-frame 1 Claude Code 1 3,511 tok
asattelmaier/gnome-ui-mcp A small Model Context Protocol server for GNOME Wayland desktop automation 1 Codex, OpenCode 1 486 tok
bch1212/queryshield Secure SQL proxy for AI agents — AST safety, per-agent RLS, audit log, MCP-native. 1 Claude Code 1 745 tok
ANAMIZED/x402-cloudflare-starter The simplest, cleanest way to accept USDC payments on Base + Solana using x402. Bring your 1 Codex, OpenCode 1 524 tok
chrischall/onehome-mcp OneHome (CoreLogic) MCP server for Claude — search, property details, photos, saved-search 1 Claude Code 1 5,897 tok
cyanheads/tmdb-mcp-server npmjs.com Search movies, TV, and people on The Movie Database (TMDB) — credits, ratings, trailers, i 1 Claude Code, Codex, OpenCode 2 15,706 tok
commet/Argus argus.voyage 1 Claude Code 3 6,165 tok
cyanheads/ourairports-mcp-server npmjs.com Resolve airport codes (IATA/ICAO/GPS/local), search airports, find the nearest by coordina 1 Claude Code, Codex, OpenCode 2 13,816 tok
cyanheads/shift-mcp-server Lightweight coordination layer for multiple AI agents working on the same codebase simulta 1 Claude Code, Codex, OpenCode 2 13,820 tok
ChanMeng666/easy-resume vitex.org.nz 【Star for professional LaTeX resumes!⭐️】 Modern browser-based LaTeX resume generator with 1 Claude Code 1 2,460 tok
cyanheads/reference-data-mcp-server npmjs.com Look up countries, timezones, periodic table elements, physical constants, units, HTTP sta 1 Claude Code, Codex, OpenCode 2 12,056 tok
cyanheads/seerr-mcp-server npmjs.com Search Jellyseerr/Overseerr, check availability, and create guarded media requests via MCP 1 Claude Code, Codex, OpenCode 2 15,692 tok
fastslack/kernl lifekernl.com Self-hosted agent teams that do your work — and hand any LLM your real data (tasks, mail, 1 Claude Code 5 1,926 tok
chrischall/workday-mcp Read-only MCP server for Workday — fetch your tasks, pay, benefits and compensation throug 1 Claude Code 1 1,077 tok
compassalessandrolorenz/Figma-Context-MCP-AIR framelink.ai MCP server to provide Figma layout information to AI coding agents like Cursor 1 Claude Code 2 1,866 tok
conorbronsdon/apple-podcasts-mcp chainofthought.show Apple Podcasts Connect Reporter analytics over MCP: plays, followers, and per-episode cons 1 Claude Code 1 587 tok
conorbronsdon/podcastindex-mcp chainofthought.show MCP server for the Podcast Index API — search podcasts, track appearances, monitor trendin 1 Claude Code 1 452 tok
cyanheads/pentest-mcp-server npmjs.com Offline methodology engine and payload workshop for authorized penetration testing, CTF, s 1 Claude Code, Codex, OpenCode 2 10,832 tok
cyanheads/pokeapi-mcp-server npmjs.com Look up Pokémon, moves, abilities, items, natures, and type matchups from PokéAPI v2 via M 1 Claude Code, Codex, OpenCode 2 13,256 tok
cyanheads/reliefweb-mcp-server npmjs.com Search ReliefWeb humanitarian reports, disasters, jobs, training, and country profiles via 1 Claude Code, Codex, OpenCode 2 14,160 tok
cyanheads/sanctions-screening-mcp-server npmjs.com Screen names against the consolidated OFAC, EU, UK, and UN sanctions lists and resolve leg 1 Claude Code, Codex, OpenCode 2 18,262 tok
lodetomasi/portfolio-copilot Claude Code plugin + local MCP for rookie investors: plan with calendar, portfolio review, 1 Claude Code 1 6,216 tok
matheusfillipe/midifier Turns a song into a multi-track General MIDI file. REST + MCP. 1 Claude Code, Codex, OpenCode 2 1,085 tok
Evil-Bane/eyebrowse pypi.org Stealthy, LLM-drivable browser-control engine: a Python library + an 85-tool MCP server on 1 Claude Code 1 4,175 tok
cyanheads/transitland-mcp-server npmjs.com Global transit data via the Transitland v2 registry — operators, GTFS/GTFS-RT/GBFS feeds w 1 Claude Code, Codex, OpenCode 2 16,096 tok
cyyprezz/codex-serverops-mcp desens.dev Windows-first local MCP transport for stateful SSH server operations 1 Codex, OpenCode 1 439 tok
dulzuradev/liveauth-mcp 1 Codex, OpenCode 1 351 tok
The-Code-Registry/mcp-server thecoderegistry.com Public MCP repository to describe how AI agents can use our hosted MCP server to get code 1 Codex, OpenCode 1 1,531 tok
HermesSilva/LocalDB-MCP 1 Claude Code 1 862 tok
linxule/vox-mcp Multi-model AI gateway — 8 providers plus local models, no system prompt injection. 1 Claude Code 1 2,383 tok
malkreide/srgssr-mcp MCP server for SRG SSR public APIs – weather, TV/radio metadata, program guide & Swiss vot 1 Claude Code 3 20,663 tok
cyanheads/usgs-water-mcp-server npmjs.com Query real-time and historical water data from ~8,000 USGS stream gages and groundwater we 1 Claude Code, Codex, OpenCode 2 9,738 tok
droideck/ldap-assistant-mcp 1 Claude Code, Codex, OpenCode 3 1,769 tok
lemmaoracle/lemma lemma.frame00.com Give AI proven facts — a cryptographically verified truth layer for agent AI, built on ZK 1 Claude Code, Codex, Cursor, OpenCode 11 317 tok
lordbasilaiassistant-sudo/mcp-servers broke2builtai.com Thryx MCP server monorepo — 4 packages on npm. Smart contract scanning, multi-wallet treas 1 Claude Code 1 1,076 tok
cyanheads/usda-mcp-server npmjs.com Search foods, compare nutrients, and look up the full USDA FoodData Central database via M 1 Claude Code, Codex, OpenCode 2 15,176 tok
cyanheads/whois-mcp-server npmjs.com Look up domain registration, check availability, fetch DNS records, and resolve IPs and AS 1 Claude Code, Codex, OpenCode 2 14,526 tok
cyanheads/wsdot-mcp-server npmjs.com Query WA highway conditions, ferry schedules, vessel locations, toll rates, border waits, 1 Claude Code, Codex, OpenCode 2 13,006 tok
heidihelena/vahtian vahtian.com Citation-true research synthesis with Zotero, PubMed intake, provenance tracking, and blin 1 Claude Code 10 1,039 tok
dontsovcmc/mcp-server-yandex-market-seller MCP server for Yandex Market sellers. 1 Claude Code 1 1,607 tok
cyanheads/federal-reserve-mcp-server npmjs.com Search and fetch ~800K Federal Reserve economic time-series from the FRED API via MCP. STD 1 Claude Code, Codex, OpenCode 2 14,640 tok
cyanheads/noaa-marine-mcp-server npmjs.com Find NOAA tide stations and NDBC buoys, fetch tide predictions, water levels, tidal curren 1 Claude Code, Codex, OpenCode 2 15,026 tok
dontsovcmc/mcp-server-yandex-direct MCP server for Yandex Direct API v5 — campaigns, ads, keywords, bids, audiences 1 Claude Code 1 1,960 tok