Menu

Individual skill

create-skill

0upvotes

Create a new skill or update an existing skill that extends Codex's capabilities with specialized knowledge, workflows, or tool integrations. Use when the user asks to "create a skill", "make a new skill", "build a skill", "scaffold a skill", "write a skill for...", or "new skill that does...".

codex/skills/create-skill/SKILL.md

Read pinned source

Source commit d56f17f0ba88ead3a4a77fcdc884f80cd3d10d2f

What was checked

Matches the observed repository HEAD
Yes
Scanner rules are current
Yes
Repository scan complete
No
Skill scan complete
Yes
Observed behavior
Instructions only
Last checked
Nov 10, 2026

These are observations at the recorded commit, not a guarantee of safety. Review the source before running it.

Install this skill

Choose an agent in your Stack or copy a command below. Commands fetch the pinned commit and copy only this skill directory. Existing destinations are refused. Copying a command does not install anything.

An install command is unavailable: current rules, complete repository and skill scans, an eligible behavior level and a permitted license are required.

Repository context

Repository stars (not skill ratings)
420
Repository last updated
Nov 9, 2026
License
MIT

Observed agent integration: No specific integration evidence. Standard SKILL.md installation does not imply verified compatibility.

Files and excerpt

File metadata and permitted, redacted excerpts come from the recorded scan. Source links are pinned to that commit.

Browse files
Read excerpt

# Create Skill

This skill guides the creation of effective skills. Authoring guidance is split across the reference files below. Read the ones the current step needs rather than all of them.

| Reference | Covers |
|---|---|
| [references/principles.md](references/principles.md) | Conciseness, instructions-not-documentation, degrees of freedom |
| [references/structure.md](references/structure.md) | Frontmatter, naming, descriptions, progressive disclosure, file layout |
| [references/writing.md](references/writing.md) | Prose rules: terminology, phrasing, conditions, thresholds |
| [references/workflows.md](references/workflows.md) | Step/phase structure, feedback loops, exit signals, output patterns |
| [references/composition.md](references/composition.md) | Depending on, invoking, and fanning out to other skills |
| [references/tools.md](references/tools.md) | `spawn_agent`, `request_user_input`, and MCP tool invocation |
| [references/evaluation.md](references/evaluation.md) | Evaluations and iterating on a skill from observed behavior |
| [references/scripts.md](references/scripts.md) | Skills that bundle executable code |
Back to top