Language:JapaneseEnglish

skill-creator Claude Code Skill

Author
Anthropic
Topics
Claude Code Customization & Workflow · Code Quality, Review & Testing
License
Apache-2.0(opens in a new tab)
First cataloged
2026-07-09 (UTC)
Explanation last updated
2026-10-28 (UTC)
Source (GitHub) last updated
2026-04-20 (UTC) (198 days ago)

The explanation below is AI-generated. Please verify it against the sources.

skill-creator is a meta-skill for building, editing, and refining other Claude skills through an iterative draft-test-review cycle. According to its SKILL.md, it guides a user interview to pin down what a new skill should do, when it should trigger, and what output it should produce, then drafts the SKILL.md file. It runs test prompts through subagents, comparing skill-assisted output against a baseline, grades the results against user-approved assertions, and aggregates pass rates, timing, and token usage into benchmark reports. It also launches a local review tool so the user can inspect outputs and leave feedback across iterations, and includes a separate routine that tests and rewrites a skill's description text to improve how reliably it gets triggered. Finished skills can be packaged into an installable file.

What you can do with skill-creator

  • Draft a new skill's SKILL.md based on an interview about its purpose, trigger conditions, and expected output
  • Generate test prompts and run them with and without the skill via subagents for comparison
  • Write verifiable assertions, grade run outputs against them, and aggregate results into benchmark reports (pass rate, timing, token usage)
  • Launch a local HTML-based viewer so users can review outputs and submit feedback across iterations
  • Generate trigger-test queries and run an automated loop to refine a skill's description for better invocation accuracy
  • Package a finished skill into an installable file

Sources

Back to list