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Skill

skill-creator

@openai Updated 2026-10-23

Create or update a Codex skill with appropriately scoped instructions and any needed supporting resources.

Install

With your agent

Install OMGSkills skill "openai/codex:skill-creator" into this agent's normal skills directory: use the OMGSkills MCP get_skill tool, install only the pinned_install commit and path, verify SKILL.md against pinned_install.skill_md_sha, and stop if MCP or the pin is unavailable. Do not overwrite or change existing skills without asking me.

Manual command

git clone https://github.com/openai/codex /tmp/codex && ln -s /tmp/codex/codex-rs/skills/src/assets/samples/skill-creator ~/.claude/skills/skill-creator

From README

Skill Creator Create skills that give Codex useful, non-obvious guidance without constraining unrelated work. Core Principles Assume Codex is already capable. Include only information that changes its decisions or improves its work. Remove generic advice, repeated instructions, speculative edge cases, and examples that do not materially clarify the task. Preserve user intent and scope. A skill should support the requested task, not replace the user's chosen product, expand the assignment, modify unrelated configuration, or imply permission for additional external actions. Do not turn a particular example, past failure, or personal preference into a universal requirement. Approval to complete a task does not expand its scope or execution permissions. For retrying or externally mutating workflows, define a stopping condition proportional to the risk. Match specificity to the risk. Give the model room to choose an appropriate approach when multiple approaches are reasonable.