Building agents skills

24,537 tagged Building agents, measured the same way as everything else here.

Browse within: agentic-ai 227LLM 210agent 208agents 135skills 114antigravity 101Autonomous Agents 99cli 97agent-orchestration 90ai-coding 80openai 79agentic-workflow 71agentic-framework 67coding-agent 67

deepseek-ai/deepseek-harness

Skill Claude CodeCodex ✓ vendor

Use when creating, changing, or validating an agent preset or other Cordis composition for this harness, including deciding host versus preset placement and checking that an authored preset mounts.

not rated 261k +7.4k changed 1mo ago A Snyk: passSkillSpector: pass 41 tokens original MIT

chain-example

02

ultraworkers/claw-code

Skill Claude CodeCodex

Example bundled skill that chains to other skills.

not rated 195k +169 yesterday A 11 tokens original MIT

claude-api

03

anthropics/skills

Skill Claude CodeCodex ✓ vendor

Reference for the Claude API / Anthropic SDK — model ids, pricing, params, streaming, tool use, MCP, agents, caching, token counting, model migration. TRIGGER — read BEFORE opening the target file; don't skip because it "looks like a one-liner" — whenever: the prompt names Claude/Anthropic in any form (Claude…

not rated 184k +1.5k changed 15d ago A Socket: passSnyk: passSkillSpector: warn 294 tokens

difyctl

04

langgenius/dify

Skill Claude CodeCodex

Operate a Dify server through difyctl: find and run any operation, and build, test, publish and change Workflow and Chatflow apps. Use when the task involves difyctl, a Dify server, or Dify apps.

not rated 159k +625 changed 5d ago A 53 tokens

github/spec-kit

Skill Claude Code ✓ vendor

Add a community extension to the Spec Kit catalog from a GitHub issue submission. USE FOR: processing extension submission issues, validating catalog entries, updating catalog.community.json and docs/community/extensions.md, creating PRs. DO NOT USE FOR: creating new extensions from scratch, or first-party extension…

not rated 143k +938 yesterday A Socket: passSnyk: warnSkillSpector: pass 63 tokens original MIT

skill-creator

06

google-gemini/gemini-cli

Skill Claude CodeCodex ✓ vendor

Guide for creating effective skills. This skill should be used when users want to create a new skill (or update an existing skill) that extends Gemini CLI's capabilities with specialized knowledge, workflows, or tool integrations.

not rated 108k +606 today A Snyk: passSkillSpector: warn 46 tokens original Apache-2.0

orchestration

07

stablyai/orca

Skill Claude CodeCodex

Coordinate supervised Orca workers: threaded messages, blocking ask/reply, task dispatch, workerdone/escalation waits, task DAGs, decision gates, coordinator loops, and decomposing work across agents. Use orca-cli for full ownership handoffs — "hand off", "handoff", "handover", "give this to another agent", "another…

not rated 105k +8.3k changed 1mo ago A Socket: passSnyk: passSkillSpector: pass 118 tokens original MIT

agent-builder

08

shareAI-lab/learn-claude-code

Skill Claude CodeCodex

Design and build AI agents for any domain. Use when users: (1) ask to "create an agent", "build an assistant", or "design an AI system" (2) want to understand agent architecture, agentic patterns, or autonomous AI (3) need help with capabilities, subagents, planning, or skill mechanisms (4) ask about Claude Code…

not rated 79k +372 26d ago A ✓ AI review Snyk: passSkillSpector: pass 125 tokens original MIT

skill-creator

09

unslothai/unsloth

Skill Claude Code

Create a reusable skill when the user wants Unsloth to learn a repeatable workflow or set of instructions.

not rated 79k +296 changed 1mo ago A 26 tokens original Apache-2.0

OpenBB-finance/OpenBB

Skill Claude CodeCodex

This guide covers installation, configuration, authentication, tool discovery, prompt management, and client integration for openbb-mcp-server.

not rated 74k changed 25d ago A ✓ AI review SkillSpector: warn 31 tokens

claude-api

11

asgeirtj/system_prompts_leaks

Skill Claude CodeCodex

Reference for the Claude API / Anthropic SDK — model ids, pricing, params, streaming, tool use, MCP, agents, caching, token counting, model migration. TRIGGER — read BEFORE opening the target file; don't skip because it "looks like a one-liner" — whenever: the prompt names Claude/Anthropic in any form (Claude…

not rated 70k +288 changed yesterday A ✓ AI review Snyk: passSkillSpector: warn 294 tokens original CC0-1.0

multi-agent-design

12

bojieli/ai-agent-book

Skill Claude CodeCodex

A guide to deciding when several AI agents should work together and how they should share tasks, context, and files. It compares peer, manager-led, and decentralised arrangements and explains common coordination failures.

not rated 56k +916 16d ago A 126 tokens original Apache-2.0

skill-creator

13

CherryHQ/cherry-studio

Skill Claude CodeCodex

Create, edit, evaluate, and optimize skills, including benchmarking and description tuning for better triggering.

not rated 53k +219 changed 4d ago A SkillSpector: warn 23 tokens AGPL-3.0

convert-web-app

14

tldraw/tldraw

Skill Claude Code

This skill should be used when the user asks to "add MCP App support to my web app", "turn my web app into a hybrid MCP App", "make my web page work as an MCP App too", "wrap my existing UI as an MCP App", "convert iframe embed to MCP App", "turn my SPA into an MCP App", or needs to add MCP App support to an existing…

not rated 51k +102 today A SkillSpector: warn 115 tokens

skill-creator

15

HKUDS/nanobot

Skill Claude CodeCodex needs its repo

Create, update, or package agent skills.

not rated 49k +180 changed 9d ago A Snyk: passSkillSpector: warn 13 tokens original MIT

skill-creator

16

zhayujie/CowAgent

Skill Claude CodeCodex

Create, install, or update skills in the workspace. Use when (1) installing a skill from a URL or remote source, (2) creating a new skill from scratch, (3) updating or restructuring existing skills. Always use this skill for any skill installation or creation task.

not rated 48k +107 today A ✓ AI review Snyk: failSkillSpector: warn 61 tokens original MIT

gh-skill

17

cli/cli

Skill Claude CodeCodex

Manage agent skills with gh skill. Use this skill to discover, preview, install, update, and publish Agent Skills so an agent can self-manage the skills available in its environment.

not rated 47k +44 today A Snyk: warnSkillSpector: pass 41 tokens original MIT

herdr

18

herdrdev/herdr

Skill Claude CodeCodex

Control Herdr, a terminal multiplexer for coding agents. Use only when the user explicitly mentions Herdr or asks to use Herdr to inspect or control panes, tabs, workspaces, commands, or another agent. Do not use merely because a task could benefit from a background terminal, delegation, or parallel work. Requires…

not rated 46k +1.1k changed 11d ago A Socket: passSnyk: passSkillSpector: pass 74 tokens original Apache-2.0

github/awesome-copilot

Skill Claude Code ✓ vendor

Create or register a canvas extension in the awesome-copilot repository. Use when asked to scaffold a new canvas extension, create its plugin.json, add a reusable extension to one or more plugins, or migrate extension metadata. Extensions are reusable source under extensions/; shippable plugin manifests belong under…

not rated 40k +217 yesterday A Snyk: passSkillSpector: pass 66 tokens original MIT

buzz-cli

20

block/buzz

Skill Claude CodeCodex ✓ vendor

Buzz CLI for relay operations: owner-reviewed agent drafts, messaging, channels, DMs, users, workflows, feed, reactions, canvas, social, repos, uploads, and agent memory.

not rated 36k +300 changed 3d ago A 41 tokens original Apache-2.0

book-to-skill

21

virgiliojr94/book-to-skill

Skill Claude CodeCodex

Converts books and documents (PDF, EPUB, DOCX, HTML, Markdown, plain text, RTF, MOBI/AZW with Calibre) into structured agent skills, extracting frameworks, mental models, principles, techniques, and anti-patterns. Use when the user wants to study a document through GitHub Copilot CLI, Amp, Claude Code, Hermes Agent…

not rated 36k +724 changed 25d ago C 105 tokens original MIT

huashu-nuwa

22

alchaincyf/nuwa-skill

Skill Claude CodeCodex

A tool for turning a person, topic, or vague need into a reusable thinking guide for an AI assistant. It researches how the subject thinks, decides, communicates, and what its limits are.

not rated 36k +883 changed 11d ago A ✓ AI review 187 tokens original MIT

alibaba/nacos

Skill Codex ✓ vendor

Discover, install, update, merge, and publish AI skills with Nacos for personal or team skill registries.

not rated 33k +15 yesterday D SkillSpector: warn 30 tokens original Apache-2.0

topoteretes/cognee

Skill Claude CodeCodex

Use to identify missing instructions in another skill based on its output.

not rated 33k +226 yesterday A SkillSpector: pass 13 tokens original Apache-2.0

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