Agent skill · writing content · rkiding
skill-creator
Create or update AgentSkills. Use when designing, structuring, or packaging skills with scripts, references, and assets.
Why this skill is useful
Provides structured guidance on creating specialized skills, including multi-step workflows and bundled resources that enhance Codex's capabilities.
What it needs
About 10k tokens when loaded. Last updated 2026-03-29. 2,757 stars on the source repository.
What this skill does
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. 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?" Prefer concise examples over verbose explanations. Set Appropriate Degrees of Freedom Match the level of specificity to the task's fragility and variability: High freedom (text-based instructions): Use when multiple approaches are valid, decisions depend on context, or heuristics guide the approach. Medium freedom (pseudocode or scripts with parameters): Use when a preferred pattern exists, some variation is acceptable, or configuration affects behavior. Low freedom (specific scripts, few parameters): Use when operations are fragile and error-prone, consistency is critical, or a specific sequence must be followed. Think of Codex as exploring a path: a narrow bridge with cliffs needs specific guardrails (low freedom), while an open field allows many routes (high freedom). …
How to use it
Reference it in AdaL, Claude Code, Cursor or any coding agent — nothing to install:
@skills rkiding/skill-creator