skill-creator
An agent skill by anthropics, from anthropics/skills. Tags: anthropic, debugging, developer-tools.
What it does
Create new skills, modify and improve existing skills, and measure skill performance. Use when users want to create a skill from scratch, edit, or optimize an existing skill, run evals to test a skill, benchmark skill performance with variance analysis, or optimize a skill's description for better triggering accuracy.
Install
With the skills CLI, which installs into Claude Code, Codex, Cursor and other agents:
npx skills add anthropics/skills --skill skill-creatorOr copy the skill folder into Claude Code's skills directory by hand (~/.claude/skills for every project, or .claude/skills inside one):
git clone --depth 1 https://github.com/anthropics/skills
cp -r skills/skills/skill-creator ~/.claude/skills/skill-creatorSafety box score
Not rated yet. A safety box score grades what a skill and its scripts can reach on the machine of whoever installs it, across eight categories from shell execution to secrets access. Anyone can request one from this page; it is saved for everyone. How the score works.
Source
- Repository
- anthropics/skills (all skills from this repository)
- Path
- skills/skill-creator/SKILL.md
- Branch
- main
- Updated
- 2026-09-19
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- c-review — Performs comprehensive C/C++ security review for memory corruption, integer overflows, race conditions, and platform-specific vulnerabilities.
- code-improver — Runs an autonomous review-and-fix improvement loop over any code target — a skill, plugin, module, or directory — using a reviewer the user names.
- dwarf-expert — Analyzes DWARF debug information in compiled binaries.