skill-creator

1# Skill Creator
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3This skill provides guidance for creating effective skills.
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5## About Skills
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7Skills are modular, self-contained packages that extend Codex's capabilities by providing
8specialized knowledge, workflows, and tools. Think of them as "onboarding guides" for specific
9domains or tasks—they transform Codex from a general-purpose agent into a specialized agent
10equipped with procedural knowledge that no model can fully possess.
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12### What Skills Provide
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141. Specialized workflows - Multi-step procedures for specific domains
152. Tool integrations - Instructions for working with specific file formats or APIs
163. Domain expertise - Company-specific knowledge, schemas, business logic
174. Bundled resources - Scripts, references, and assets for complex and repetitive tasks
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19## Core Principles
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21### Concise is Key
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23The 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.
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25**Default assumption: Codex is already very smart.** Only add context Codex doesn't already have. Challenge each piece of information: "Does Codex really need this explanation?" and "Does this paragraph justify its token cost?"
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27Prefer concise examples over verbose explanations.
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29### Set Appropriate Degrees of Freedom
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31Match the level of specificity to the task's fragility and variability:
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