One search for your own team's files and the public ecosystem. See how real projects write their agent instructions, and bring the good ideas home.
Files you open will collect here, so you can find them again.
Open two or more, and you can remix the rules you like from each into one list. Kept in this browser only.
AnthropicSkillanthropics/claude-plugins-official/plugins/champion-kit/skills/routines/SKILL.md
Set up recurring champion routines as Claude Code scheduled tasks. Use when a champion wants work like a weekly patterns digest, a stale guidance check, or a monthly lead update to happen without kicking it off by hand.
Steady4 mentions in 2 weeks
6 projects use a version of this
AnthropicReads credentialsSkillanthropics/claude-plugins-official/plugins/claude-code-setup/skills/claude-automation-recommender/SKILL.md
Analyze a codebase and recommend Claude Code automations (hooks, subagents, skills, plugins, MCP servers). Use when user asks for automation recommendations, wants to optimize their Claude Code setup, mentions improving Claude Code workflows, asks how to first set up Claude Code for a project, or wants to know what Claude Code features they should use.
Surging4 mentions in 2 weeks
11 projects use a version of this
AnthropicSkillanthropics/claude-plugins-official/plugins/claude-md-management/skills/claude-md-improver/SKILL.md
Audit and improve CLAUDE.md files in repositories. Use when user asks to check, audit, update, improve, or fix CLAUDE.md files. Scans for all CLAUDE.md files, evaluates quality against templates, outputs quality report, then makes targeted updates. Also use when the user mentions "CLAUDE.md maintenance" or "project memory optimization".
Surging4 mentions in 2 weeks
18 projects use a version of this
AnthropicSkillanthropics/claude-plugins-official/plugins/claude-security/skills/claude-security/SKILL.md
Claude Security: scan the codebase (the whole repository or a scoped part of it), scan changes (this branch's or a pull request's diff, or one commit), or suggest patches (findings turned into targeted patch files, each verified by a panel of agents, that you apply when you choose). Use when the user asks to scan, audit or check code with Claude Security, to scan their changes with Claude Security, or to fix or patch Claude Security findings.
Steady4 mentions in 2 weeks
1 project uses a version of this
AnthropicSkillanthropics/claude-plugins-official/plugins/cwc-makers/skills/cardputer-buddy/SKILL.md
Iterate on the Cardputer-Adv MicroPython app bundle (Claude Buddy, Snake, Hello) after the device is already provisioned via m5-onboard. Use when the user wants to add a new app, push a single changed .py without re-flashing, watch device serial logs, or run a one-shot REPL command. Trigger on "add an app", "push to the cardputer", "tail the device", "run on the device", or follow-up work after /maker-setup.
Steady4 mentions in 2 weeks
1 project uses a version of this
AnthropicSkillanthropics/claude-plugins-official/plugins/cwc-makers/skills/m5-onboard/SKILL.md
End-to-end onboarding for a freshly-plugged-in M5Stack ESP32 device (Cardputer, Cardputer-Adv, Core, CoreS3, Stick) — detect on USB, flash UIFlow 2.0 firmware, and install the Claude Buddy MicroPython app bundle. Use whenever the user plugs in or wants to flash/provision/reset an M5Stack or ESP32 board, or says "m5-onboard go".
Steady4 mentions in 2 weeks
5 projects use a version of this
AnthropicSkillanthropics/claude-plugins-official/plugins/example-plugin/skills/example-command/SKILL.md
An example user-invoked skill that demonstrates frontmatter options and the skills/<name>/SKILL.md layout
Steady4 mentions in 2 weeks
3 projects use a version of this
AnthropicSkillanthropics/claude-plugins-official/plugins/example-plugin/skills/example-skill/SKILL.md
This skill should be used when the user asks to "demonstrate skills", "show skill format", "create a skill template", or discusses skill development patterns. Provides a reference template for creating Claude Code plugin skills.
Steady4 mentions in 2 weeks
50 projects use a version of this
AnthropicReads credentialsSkillanthropics/claude-plugins-official/plugins/hookify/skills/writing-rules/SKILL.md
This skill should be used when the user asks to "create a hookify rule", "write a hook rule", "configure hookify", "add a hookify rule", or needs guidance on hookify rule syntax and patterns.
Steady4 mentions in 2 weeks
7 projects use a version of this
AnthropicSkillanthropics/claude-plugins-official/plugins/math-olympiad/skills/math-olympiad/SKILL.md
1. Strip thinking before verifying — a verifier that sees the reasoning is biased toward agreement. Fresh context, cleaned proof only. 2. "Does this prove RH?" — if your theorem's specialization to ζ is a famous open problem, you have a gap. Most reliable red flag. 3. Short proof → extract the general lemma — try 2×2 counterexamples. If general form is false, find what's special about THIS instance. 4. Same gap twice → step back — the case split…
Steady4 mentions in 2 weeks
3 projects use a version of this
AnthropicSkillanthropics/claude-plugins-official/plugins/math-proof/skills/siege/SKILL.md
Work on one hard mathematics problem in rounds: each round a judge writes a few self-contained questions, independent workers answer them, and the judge keeps a ledger of what is proved, refuted and open, until the judge concludes or the rounds run out, and then a proof.md says plainly what is and is not proved. A run takes hours and dozens of worker runs. Usage: /math-proof:siege [NAME=value settings] <the problem, stated in full, or the path of a file holding it>.
Steady4 mentions in 2 weeks
1 project uses a version of this
AnthropicSkillanthropics/claude-plugins-official/plugins/math-proof/skills/solo/SKILL.md
Work on one hard mathematics problem in this session yourself, with no sub-agents: reason in stages, record each settled step in a notes file so that nothing written is lost if a response is cut off, and end with a self-contained proof.md. Usage: /math-proof:solo <the problem, stated in full, or the path of a file holding it>.
Steady4 mentions in 2 weeks
4 projects use a version of this
AnthropicReads credentialsSkillanthropics/claude-plugins-official/plugins/mcp-server-dev/skills/build-mcp-app/SKILL.md
This skill should be used when the user wants to build an "MCP app", add "interactive UI" or "widgets" to an MCP server, "render components in chat", build "MCP UI resources", make a tool that shows a "form", "picker", "dashboard" or "confirmation dialog" inline in the conversation, or mentions "apps SDK" in the context of MCP. Use AFTER the build-mcp-server skill has settled the deployment model, or when the user already knows they want UI widgets.
Surging4 mentions in 2 weeks
3 projects use a version of this
AnthropicReads credentialsSkillanthropics/claude-plugins-official/plugins/mcp-server-dev/skills/build-mcpb/SKILL.md
This skill should be used when the user wants to "package an MCP server", "bundle an MCP", "make an MCPB", "ship a local MCP server", "distribute a local MCP", discusses ".mcpb files", mentions bundling a Node or Python runtime with their MCP server, or needs an MCP server that interacts with the local filesystem, desktop apps, or OS and must be installable without the user having Node/Python set up.
Surging4 mentions in 2 weeks
4 projects use a version of this
AnthropicSkillanthropics/claude-plugins-official/plugins/mcp-server-dev/skills/build-mcp-server/SKILL.md
This skill should be used when the user asks to "build an MCP server", "create an MCP", "make an MCP integration", "wrap an API for Claude", "expose tools to Claude", "make an MCP app", or discusses building something with the Model Context Protocol. It is the entry point for MCP server development — it interrogates the user about their use case, determines the right deployment model (remote HTTP, MCPB, local stdio), picks a tool-design pattern, and hands off to specialized skills.
Surging4 mentions in 2 weeks
12 projects use a version of this
AnthropicSkillanthropics/claude-plugins-official/plugins/playground/skills/playground/SKILL.md
Creates interactive HTML playgrounds — self-contained single-file explorers that let users configure something visually through controls, see a live preview, and copy out a prompt. Use when the user asks to make a playground, explorer, or interactive tool for a topic.
Steady4 mentions in 2 weeks
14 projects use a version of this
AnthropicSkillanthropics/claude-plugins-official/plugins/plugin-dev/skills/agent-development/SKILL.md
This skill should be used when the user asks to "create an agent", "add an agent", "write a subagent", "agent frontmatter", "when to use description", "agent examples", "agent tools", "agent colors", "autonomous agent", or needs guidance on agent structure, system prompts, triggering conditions, or agent development best practices for Claude Code plugins.
Steady4 mentions in 2 weeks
13 projects use a version of this
AnthropicSkillanthropics/claude-plugins-official/plugins/plugin-dev/skills/command-development/SKILL.md
This skill should be used when the user asks to "create a slash command", "add a command", "write a custom command", "define command arguments", "use command frontmatter", "organize commands", "create command with file references", "interactive command", "use AskUserQuestion in command", or needs guidance on slash command structure, YAML frontmatter fields, dynamic arguments, bash execution in commands, user interaction patterns, or command development best practices for Claude Code.
Steady4 mentions in 2 weeks
12 projects use a version of this
AnthropicReads credentialsSkillanthropics/claude-plugins-official/plugins/plugin-dev/skills/hook-development/SKILL.md
This skill should be used when the user asks to "create a hook", "add a PreToolUse/PostToolUse/Stop hook", "validate tool use", "implement prompt-based hooks", "use ${CLAUDE_PLUGIN_ROOT}", "set up event-driven automation", "block dangerous commands", or mentions hook events (PreToolUse, PostToolUse, Stop, SubagentStop, SessionStart, SessionEnd, UserPromptSubmit, PreCompact, Notification). Provides comprehensive guidance for creating and implementing Claude Code plugin hooks with focus on advanced prompt-based hooks API.
Steady4 mentions in 2 weeks
13 projects use a version of this
AnthropicReads credentialsSkillanthropics/claude-plugins-official/plugins/plugin-dev/skills/mcp-integration/SKILL.md
This skill should be used when the user asks to "add MCP server", "integrate MCP", "configure MCP in plugin", "use .mcp.json", "set up Model Context Protocol", "connect external service", mentions "${CLAUDE_PLUGIN_ROOT} with MCP", or discusses MCP server types (SSE, stdio, HTTP, WebSocket). Provides comprehensive guidance for integrating Model Context Protocol servers into Claude Code plugins for external tool and service integration.
Steady4 mentions in 2 weeks
23 projects use a version of this
Plain text files in a repository that tell a coding agent how the project works: commands to run, conventions to follow and things to avoid. CLAUDE.md, AGENTS.md, cursor rules and skills are the common kinds.
CLAUDE.md is read by Claude Code. AGENTS.md is an open format that Codex, Cursor and other agents read. Many projects keep one and point the other at it.
A folder with a SKILL.md that describes one capability, such as filling PDFs or reviewing code. The agent loads it only when the task calls for it.
Your agents already can, over MCP, limited to the files you're allowed to read. Searching them from this page is coming.
