Building agents skills

23,072 tagged Building agents, measured the same way as everything else here.

Browse within: LLM 210agentic-ai 204agent 193agents 156skills 145openai 86agentic-workflow 85antigravity 83ai-skills 82cli 75agentic-framework 72agent-orchestration 69ai-assistant 68Autonomous Agents 65

agents-best-practices

121

DenisSergeevitch/agents-best-practices

Skill Claude CodeCodex

Use this skill when designing, generating an MVP blueprint for, auditing, refactoring, or explaining an agentic harness for any domain. Covers provider-neutral agent architecture for OpenAI, Anthropic, and OpenAI-compatible APIs: agent loops, tool design, environment-adaptive tools, speculative tool execution…

not rated 2.3k +8 changed 5d ago A 129 tokens original MIT

skill-creator

122

mgechev/skills-best-practices

Skill Claude CodeCodex

Authors and structures professional-grade agent skills following the agentskills.io spec. Use when creating new skill directories, drafting procedural instructions, or optimizing metadata for discoverability. Don't use for general documentation, non-agentic library code, or README files.

not rated 2.3k +4 1mo ago A 52 tokens

skill-digester

123

lessweb/deepcode-cli

Skill Claude CodeCodex needs its repo

A skill for reviewing and improving the description of another coding-agent skill, and for guiding its installation into a user or project skills directory. An Agent Skill is a folder of instructions and supporting files that teaches an agent how to perform a task.

not rated 2.2k +7 today A SkillSpector: warn 70 tokens original MIT

mcp-inspector

124

MCPJam/inspector

Skill Claude CodeCodex

Interpret and use mcpjam probe, doctor, OAuth, XAA (Cross-App Access / ID-JAG), apps conformance, tools, resources, and prompts output conservatively against MCP 2025-11-25. Use when interacting with MCP servers, executing tools, triaging findings, performing security reviews, debugging enterprise-managed…

not rated 2.2k +5 today A SkillSpector: warn 101 tokens

agent-mail

125

Dicklesworthstone/mcp_agent_mail

Skill Claude CodeCodex

MCP Agent Mail - Mail-like coordination layer for multi-agent workflows. Identities, inbox/outbox, file reservations, contact policies, threaded messaging, pre-commit guard, Human Overseer, static exports, disaster recovery. Git+SQLite backed. Python/FastMCP.

not rated 2.1k +8 4d ago C 59 tokens

claude-code-dev

126

Leanmcp/superview.sh

Skill Claude CodeCodex

How to develop, modify, and extend the Claude Code codebase following its established programming style, patterns, and conventions. Use this skill whenever working on the claude-code source — adding tools, commands, utils, components, types, hooks, services, or fixing bugs. Also use when the user asks about…

not rated 2.1k 5mo ago A 101 tokens original MIT

renatoasse/opensquad

Skill Claude CodeCodex

Create new Opensquad skills, modify and improve existing skills, and measure skill performance. Use when users want to create a skill for their squads, update or optimize an existing skill, run evals to test a skill, or benchmark skill performance. Supports all Opensquad skill types: MCP integrations, custom scripts…

not rated 2.1k +8 5mo ago A 0 tokens

Web2Skill

128

zhimaAi/chatwiki

Skill Codex

Convert one public website URL or an explicit batch of public URLs into a reusable skill zip backed by rendered HTML snapshots and a bounded JSONL retrieval index. Use to discover a documentation directory from one URL, crawl a supplied URL set sequentially, generate a source profile, or package indexed web content as…

not rated 2.1k +3 6d ago A SkillSpector: pass 67 tokens

microsoft/foundry-dev-tools

Skill Claude Code ✓ vendor

Validate a Microsoft Foundry hosted-agent project against Microsoft Foundry best practices and open its validation report. Use when the user explicitly asks to validate a Foundry hosted agent or invokes this skill.

not rated 2.1k +2 yesterday A 47 tokens original MIT

remote-claude-code

130

Prism-Shadow/penguin-harness

Skill Claude CodeCodex

Run Claude Code on a remote host over SSH — a persistent expect-driven login session, headless claude -p with the stdin fix, the interactive TUI inside a remote tmux driven by send-keys/capture-pane (one keystroke at a time, capture-verified; relayed user messages go through verbatim), and multi-turn continuity via…

not rated 2.1k +66 changed 5d ago A SkillSpector: warn 107 tokens original Apache-2.0

nooa-agent-authoring

131

NVIDIA-NeMo/labs-OO-Agents

Skill Claude CodeCodex

Author agents with NVIDIA-labs Object Oriented Agents (NOOA). Use when writing or modifying an Agent subclass, agentic methods (ellipsis bodies), docstring prompts, structured output contracts, strategy selection (CodeAct/Predict), visibility control, orchestrators, or subagent composition.

not rated 2.0k +28 changed yesterday A SkillSpector: warn 0 tokens

tbench

132

coder/xum

Skill Claude CodeCodex needs its repo

Terminal-Bench integration for Xum agent benchmarking and failure analysis.

not rated 2.0k +8 today A SkillSpector: pass 15 tokens AGPL-3.0

dynamic-workflow

133

pchalasani/claude-code-tools

Skill Codex

Create, review, run, inspect, pause, resume, and cancel durable JavaScript workflows that coordinate multiple headless Codex agents. Use for dynamic fan-out and fan-in, per-item analysis, multi-stage agent pipelines, loops or branches driven by worker results, long background runs, and ports of Claude Code dynamic…

not rated 2.0k +6 3d ago A SkillSpector: pass 86 tokens original MIT

chatgpt-app-builder

134

alpic-ai/skybridge

Skill Claude CodeCodex

Guide developers through creating and updating ChatGPT apps. Covers the full lifecycle: brainstorming ideas against UX guidelines, bootstrapping projects, implementing tools/views, debugging, running dev servers, deploying and connecting apps to ChatGPT. Use when a user wants to create or update a ChatGPT app / MCP…

not rated 2.0k +1 changed 5d ago A Socket: passSnyk: warnSkillSpector: pass 78 tokens original MIT

skill-creator

135

openakita/openakita

Skill Codex

Create new skills, modify and improve existing skills, and measure skill performance. Use when users want to create a skill from scratch, edit, or optimize an existing skill, run evals to test a skill, benchmark skill performance with variance analysis, or optimize a skill's description for better triggering accuracy.

not rated 2.0k +3 yesterday A SkillSpector: warn 64 tokens AGPL-3.0

harbor

136

AntigmaLabs/ante

Skill Claude CodeCodex

Run Terminal-Bench or any Harbor dataset with Ante as the agent, using the Harbor adapter in the ante repo's ante-harbor/ directory. Use when the user wants to benchmark Ante on Harbor or reproduce Ante's published eval results.

not rated 1.9k +15 today A SkillSpector: pass 51 tokens original Apache-2.0

open-ralph-wiggum

137

Th0rgal/open-ralph-wiggum

Skill Claude CodeCodex

Use this skill whenever a user wants to run, install, configure, or understand open-ralph-wiggum (ralph). This skill can be used by any AI assistant or IDE agent (GitHub Copilot, Claude Code, Cursor, Windsurf, etc.). Triggers on: "ralph", "ralph wiggum", "agentic loop", "iterative AI loop", "autonomous coding loop"…

not rated 1.9k +1 3mo ago C 225 tokens original MIT

agent-tool

138

vstorm-co/full-stack-ai-agent-template

Skill Claude Code

Add a new tool/function the AI agent can call (e.g. look something up, hit an external API, perform an action). Use when extending the assistant's capabilities, wiring a new function into the agent, or when the model needs a new action. This project uses {{ cookiecutter.aiframework }}.

not rated 1.9k +7 6d ago A SkillSpector: pass 66 tokens original MIT

staffdeck-api-auth

139

OpenBMB/StaffDeck

Skill Codex

Authenticate to StaffDeck Open API v1, inspect the current credential boundary, list accessible agents, browse the gallery, add a gallery agent, or bootstrap API clients and credentials. Use for StaffDeck API key setup, authorization failures, agent selection, scope checks, and cross-agent access questions.

not rated 1.9k +41 today A SkillSpector: pass 63 tokens AGPL-3.0

skill-evolve

140

yologdev/yoyo-evolve

Skill Claude CodeCodex

Refine, create, or retire your own skills based on recurring patterns from past sessions.

not rated 1.9k +1 today A SkillSpector: warn 21 tokens original MIT

aider-delegate

141

amElnagdy/delegate-skills

Skill Claude CodeCodex

Delegate a coding task to Aider (aider) as a background implementer, then review its diff and land it yourself. Use this whenever the user wants to hand implementation work to Aider - phrasings like "have Aider do X", "delegate this to aider", "run it through Aider", or "use Aider to implement/fix/refactor" - or wants…

not rated 1.9k +188 10d ago A Socket: warnSnyk: passSkillSpector: warn 190 tokens original MIT

a5c-ai/babysitter

Skill Claude Code

This skill should be used when the user asks to "find skills in the wild", "assimilate popular workflows", "discover SKILL.md files in repos", "research external skills", "find workflow patterns", "survey the skill landscape", "what skills exist out there", or wants to investigate public repositories for extractable…

not rated 1.8k +14 5d ago A SkillSpector: warn 110 tokens original MIT

sunny-glow/Auto-BenchMax

Skill Claude CodeCodex

Synthesize training data for ANY tool-use / agentic benchmark, in ANY repo. Given a handful of runnable reference tasks, produce thousands of "same-distribution, different-entity" tasks, roll out real trajectories, and emit SFT, RL data. Use this when: you have a tool-calling / MCP / agentic benchmark and want to…

not rated 1.7k +1 1mo ago A 183 tokens

smart-docs

144

sopaco/deepwiki-rs

Skill Claude Code needs its repo

AI-powered comprehensive codebase documentation generator. Analyzes project structure, identifies architecture patterns, creates C4 model diagrams, and generates professional technical documentation. Use when users need to document codebases, understand software architecture, create technical specs, or generate…

not rated 2.0k +2 27d ago A SkillSpector: pass 80 tokens original MIT

At most 3 mods per repository are shown here, and a mod shipped inside a plugin is left to that plugin's page — the rest are on their repository pages: