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 Codex's capabilities with specialized knowledge, workflows, or tool integrations.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Skill Creator
This skill provides guidance for creating effective skills.
## About Skills
Skills are modular, self-contained packages that extend Codex's capabilities by providing
specialized knowledge, workflows, and tools. Think of them as "onboarding guides" for specific
domains or tasks—they transform Codex from a general-purpose agent into a specialized agent
equipped with procedural knowledge that no model can fully possess.
### What Skills Provide
1. Specialized workflows - Multi-step procedures for specific domains
2. Tool integrations - Instructions for working with specific file formats or APIs
3. Domain expertise - Company-specific knowledge, schemas, business logic
4. Bundled resources - Scripts, references, and assets for complex and repetitive tasks
## Core Principles
### Concise is Key
The context window is a public good. Skills share the context window with everything else Codex needs: system prompt, conversation history, other Skills' metadata, and the actual user request.
…
The line at the top of this page pins the label git:20251220.bd07ff6, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
GET https://markdownregistry.com/api/v1/artifacts/art_gwnif7d6qaogs4rt
GET https://markdownregistry.com/api/v1/resolve?ref=akiojin/llmlb/skill-creator
GET https://markdownregistry.com/api/v1/blob/31b0010a4e1f30d8bfe06486996bbaf28973053cdc405a4ff29cebe5ddbaf77e
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
akiojin/llmlb · .claude/skills/frontend-design/SKILL.md · Create distinctive, production-grade frontend interfaces with high design quality. Use this skill when the user asks to…
akiojin/llmlb · .claude/skills/gwt-project-index/SKILL.md · Semantic search over project source files using vector embeddings. Use to find files related to a feature, bug, or…
akiojin/llmlb · .claude/skills/hookify-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…
akiojin/llmlb · .claude/skills/mcp-server-development/SKILL.md · Expert guidance for building MCP (Model Context Protocol) servers using the TypeScript SDK. Use when developing MCP…
akiojin/llmlb · .claude/skills/vercel-react-best-practices/SKILL.md · React and Next.js performance optimization guidelines from Vercel Engineering. This skill should be used when writing…
akiojin/llmlb · .claude/skills/web-design-guidelines/SKILL.md · Review UI code for Web Interface Guidelines compliance. Use when asked to "review my UI", "check accessibility", "audit…
akiojin/llmlb · .codex/skills/.system/plan/SKILL.md · Generate a plan for how an agent should accomplish a complex coding task. Use when a user asks for a plan, and…
akiojin/llmlb · .codex/skills/.system/skill-installer/SKILL.md · Install Codex skills into $CODEX_HOME/skills from a curated list or a GitHub repo path. Use when a user asks to list…
akiojin/llmlb · .codex/skills/drawio/SKILL.md · Create and edit draw.io diagrams in XML format. Use when the user wants to create flowcharts, architecture diagrams…
anthropics/skills · skills/skill-creator/SKILL.md · Create new skills, modify and improve existing skills, and measure skill performance. Use when users want to create a…
bytedance/deer-flow · skills/public/skill-creator/SKILL.md · Create new skills, modify and improve existing skills, and measure skill performance. Use when users want to create a…
cherryhq/cherry-studio · resources/skills/skill-creator/SKILL.md · Create, edit, evaluate, and optimize skills, including benchmarking and description tuning for better triggering.
anthropics/claude-plugins-official · plugins/skill-creator/skills/skill-creator/SKILL.md · Create new skills, modify and improve existing skills, and measure skill performance. Use when users want to create a…
volcengine/openviking · bot/workspace/skills/skill-creator/SKILL.md · Create or update AgentSkills. Use when designing, structuring, or packaging skills with scripts, references, and assets.
garrytan/gbrain · plugin/skills/skill-creator/SKILL.md · Create new skills following the GBrain conformance standard. Generates SKILL.md
with frontmatter, Contract, Phases…
garrytan/gbrain · skills/skill-creator/SKILL.md · Create new skills following the GBrain conformance standard. Generates SKILL.md
with frontmatter, Contract, Phases…
eigent-ai/eigent · resources/example-skills/skill-creator/SKILL.md · Guide for creating effective skills. Use when creating a new skill or updating an existing skill that extends agent…
