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 Code31,984 Codex23,196 OpenCode22,145 GitHub Copilot3,551 Gemini CLI1,917 Cursor1,736 Windsurf133 Kiro79
| Project | Stars | Configures | Files | Always loaded |
|---|---|---|---|---|
| ai-integr8tor/agent0ai-dox | 3 | Codex, OpenCode | 1 | 820 tok |
| muqeetmughal/db_tools A Frappe App For Database Level Tools and Utilities | 3 | Codex, OpenCode | 1 | 3,025 tok |
| jonanderson10/enhanced-opencode-prompt-stack A provider-agnostic replacement for OpenCode's built-in system prompts with best practices | 3 | Codex, OpenCode | 1 | 576 tok |
| romelllo/mipt-python-2026 | 3 | Claude Code, Codex, OpenCode | 2 | 1,984 tok |
| fco3lho/unlazier-ai OpenCode and Claude Code rules to eliminate lazy coding, behavioral principles, code quali | 3 | Claude Code, Codex, OpenCode | 2 | 1,425 tok |
| jiki-education/front-end | 3 | Claude Code, Codex, OpenCode | 4 | 4,082 tok |
| mithunyc/obsidian-agent-memory A production-grade memory system for AI coding agents. Context Capsules, Tiered Retrieval, | 3 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 496 tok |
| abexiong/govafy-unsolicited-proposal-kit A plain-English playbook for small businesses writing federal unsolicited proposals under | 3 | Claude Code, Codex, OpenCode | 2 | 4,953 tok |
| Affitor/agent-skills AI agent instructions for integrating Affitor affiliate tracking. Works with Claude Code, | 3 | Codex, OpenCode | 1 | 327 tok |
| gatalifeltd/economizer-skills Token-economy guidelines for coding agents — cut wasted output, reduce cost (Claude, Curso | 3 | Claude Code, Codex, OpenCode | 2 | 178 tok |
| elmoritz/agents-skills-setup elmoritz.github.io | 3 | Claude Code, Codex, OpenCode | 25 | 2,647 tok |
| weante/city-salary City salary calculator Agent Skill: Calculates social security, housing provident fund, in | 3 | Codex, OpenCode | 1 | 1,640 tok |
| intentdriven/abcd abcdev.app abcd: An experimental configuration layer for intent-driven development. | 3 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 6,013 tok |
| AsterCommunity/AptS-1548 | 3 | Codex, OpenCode | 1 | 400 tok |
| TidyFactor/Cinematic tidyfactor.com Produce high-impact, scroll-driven product films and luxury Cinematic Landing pages. | 3 | Claude Code, Codex, OpenCode | 20 | 3,385 tok |
| hanzixuan58521/zixuan-agent-constitution A personal AI agent constitution combining Occam's razor, first principles, beginning with | 3 | Codex, OpenCode | 1 | 3,941 tok |
| serenashenn3-art/wechat-forensic-pro wechat-forensic-pro | 3 | Claude Code, Codex, Cursor, Gemini CLI, OpenCode | 4 | 13,264 tok |
| 8Dionysus/aoa-agents Role and persona layer for AoA: explicit agent profiles, role contracts, handoff rules, me | 3 | Codex, OpenCode | 1 | 1,225 tok |
| xrcodexcode/xr_node Personal wiki | 3 | Claude Code, Codex, Gemini CLI | 5 | 6,109 tok |
| cicikat/PresenceKit-mobile Mobile client for PresenceKit, providing a companion experience on Android. | 3 | Claude Code, Codex, OpenCode | 2 | 3,845 tok |
| krahets/krahets.github.io krahets.com Personal website of Yudong Jin (@krahets) | 3 | Claude Code, Codex, OpenCode | 2 | 1,736 tok |
| charlesapetersen/Archive-Suite Three native macOS apps for turning shelves of historical documents into a searchable, rea | 3 | Claude Code, Codex, OpenCode | 6 | 12,548 tok |
| atmosware/cognia-agents | 3 | Claude Code, Codex, OpenCode | 33 | 794 tok |
| atmosware/praxia-agents | 3 | Claude Code, Codex, OpenCode | 27 | 1,771 tok |
| nassimna/karpathy-guidelines Cross-agent Karpathy-inspired behavioral guidelines for Claude Code, Codex, Cursor, and Ge | 3 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 1,564 tok |
| lazysheep-z/apdr-product-design-runtime AI Product Design Runtime by Joker — from requirements to frontend code, powered by 5 MCP | 3 | Codex, OpenCode | 1 | 514 tok |
| vepo/contraponto blogs.commit-mestre.dev Self-hostable multi-author blog platform built with Quarkus, HTMX, and PostgreSQL. Per-use | 3 | Claude Code, Codex, Cursor, OpenCode | 22 | 3,706 tok |
| Brainy-Builds/ts-inspect-cli A read-only TypeScript semantic inspection CLI built on ts-morph | 3 | Claude Code, Codex, OpenCode | 2 | 1,488 tok |
| NAME0x0/HyMarkX npmjs.com Markdown-compatible language that progressively becomes a web application. CommonMark + GF | 3 | Claude Code, Codex, OpenCode | 3 | 1,348 tok |
| systemfsoftware/constitution systemfsoftware.com The engineering constitution for unbreakable software — functional core / imperative shell | 3 | Claude Code, Codex, OpenCode | 2 | 1,468 tok |
| mturac/skill-hunter Pre-execution layer that makes agents check for existing skills before building from scrat | 3 | Claude Code, Codex, OpenCode | 2 | 1,477 tok |
| brovar/10x-pentest 10x pentest workflow build on agentic skills | 3 | Claude Code, Codex | 20 | — |
| Enovatr-Labs/SpecRoute Open source framework for spec-driven agentic software engineering. PRDs, prompts, agents, | 3 | Claude Code, Codex, Gemini CLI, OpenCode | 7 | 3,090 tok |
| dakimura/guff A blazing-fast golangci-lint compatible Go linter | 3 | Codex, OpenCode | 1 | 200 tok |
| AllenMuu/mysql-cli Go CLI for AI agent MySQL access | 3 | Claude Code, Codex, OpenCode | 2 | 2,782 tok |
| CiscoDevNet/mcp_server_cisco_aci_community MCP Server for Cisco ACI | 3 | Codex, OpenCode | 1 | 2,721 tok |
| SuperWangYuan/toutiaohao-mcp-server EN: An MCP server and HTTP API powered by Go and go-rod for automated Toutiao (ByteDance) | 3 | Codex, OpenCode | 1 | 6,482 tok |
| sharpninja/McpServer sharpninja.github.io | 3 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 6,651 tok |
| PLAID-lib/plaid-mcp-server MCP server for converting datasets | 3 | Codex, OpenCode | 1 | 1,205 tok |
| lowspeclabs/Proxmox-Manager-Agent-Skill Opensource Agent Skills | 3 | Codex, OpenCode | 1 | 1,728 tok |
| tomazb/agent-skills A repository of useful agent skills | 3 | Codex, OpenCode | 1 | 843 tok |
| sajeetharan/angular-agent-kit sajeetharan.github.io A collection of skills for AI coding agents working with Angular. Skills are packaged inst | 3 | Codex, OpenCode | 1 | 689 tok |
| docevilOck/agent-skills-hook | 3 | Codex, OpenCode | 1 | 445 tok |
| frowang-ai/paper-agent-skills | 3 | Codex, OpenCode | 1 | 642 tok |
| djimit/overheid-plugins Centrale catalogus van Claude Code plugins voor de Nederlandse overheid | 3 | Codex, OpenCode | 1 | 1,254 tok |
| MGrin/bb-plugin-accounts Claude Max account usage and auto-switching for bb — proactive on utilization, reactive on | 3 | Claude Code, Codex, OpenCode | 2 | 1,109 tok |
| atree1023/snc-cribl-mcp | 3 | Claude Code, Codex, OpenCode | 3 | 3,376 tok |
| Addono/gh-attach Upload images to GitHub issues, PRs, and comments — from the CLI or via MCP. | 3 | Claude Code, Codex, OpenCode | 5 | 312 tok |
| Neboy72/nexus-memory Universal shared memory for AI agents — one brain for all your agents, 100% local & privat | 3 | Codex, OpenCode | 1 | 6,037 tok |
| obrien-matthew/mcp-steam pypi.org MCP server for Steam -- gaming library, achievements, stats, and store discovery for Claud | 3 | Claude Code, Codex, OpenCode | 2 | 295 tok |