Agent workflowApache-2.0

Skill creator

by Anthropic (opens in a new tab) anthropics/skills

Creates, tests and tunes skills, including evals and trigger checks.

Installation

Skills CLI

Skills CLI command
npx skills@latest add anthropics/skills --skill skill-creator

Requires Node.js and npm. Choose your agents in the installer; add -g for a global installation.

Fieldbook review

Reviewed 27 Sept 2026

The most complete skill-authoring workflow available, with an eval viewer. Heavy for a quick skill.

  • LicenceApache-2.0
  • FrontmatterValid name and description
  • Risky patternsNone found
  • Size486 lines
  • Last checked27 Sept 2026 · dcd4803e61e913e6fc27294184cd3a71f09f5e924ff20c8a9a20173e7b3c2bcf

What it can touch

  • Writes docs

    Creates or updates documents such as specs, plans or ADRs.

  • Runs commands

    Runs shell commands such as tests, builds or installs.

  • Subagents

    Starts other agents to work in parallel.

Read the source

Fieldbook links to the original instead of copying it, so you always read the version you install.

skills/skill-creator/SKILL.md on GitHub (opens in a new tab)