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Skill writing skill

Skill writing is part of Superpowers, Jesse Vincent's development method. Its job is to write and test new skills the way Superpowers does, test-first against subagents. It loads on its own when a request matches its description, and you can also call it by name. It bundles Node.js scripts that the instructions call for.

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When the agent reaches for it

The agent keeps every installed skill's description in view and loads the full instructions when a request matches. This is the description it reads:

Use when creating new skills, editing existing skills, or verifying skills work before deployment

What the instructions cover

The sections of its SKILL.md, in order.

  • Overview
  • What is a Skill?
  • TDD Mapping for Skills
  • When to Create a Skill
  • Skill Types
  • Directory Structure
  • SKILL.md Structure
  • Skill Discovery Optimization (SDO)
  • Flowchart Usage
  • Code Examples
  • File Organization
  • The Iron Law (Same as TDD)
  • Testing All Skill Types
  • Common Rationalizations for Skipping Testing
  • Match the Form to the Failure
  • Bulletproofing Skills Against Rationalization
  • RED-GREEN-REFACTOR for Skills
  • Anti-Patterns
  • STOP: Before Moving to Next Skill
  • Skill Creation Checklist (TDD Adapted)
  • Discovery Workflow

What ships with it

Besides SKILL.md, the folder carries these. The agent opens them only when a step in the instructions calls for one.

  • examples/ 1 file · 5 KB
  • anthropic-best-practices.md 45 KB
  • graphviz-conventions.dot 6 KB
  • persuasion-principles.md 6 KB
  • render-graphs.js 5 KB
  • testing-skills-with-subagents.md 12 KB

Install the skill writing skill

In Claude Code, run this in a session. It comes from the publisher's own instructions.

Claude Code 
/plugin install superpowers@claude-plugins-official

License: MIT.

In Longwave, add Superpowers from the marketplace. It installs all 14 of its skills, and your Claude Code, Codex and OpenCode threads can use them.

Questions people ask

How do I install the skill writing skill?

In Claude Code, run /plugin install superpowers@claude-plugins-official. In Longwave, add Superpowers from the marketplace, and its skills reach your Claude Code, Codex and OpenCode threads.

When does the agent use the skill writing skill?

When a request matches its description. The agent keeps only the name and description of each installed skill in view, and reads the full instructions when a task fits. You can also ask for it by name.

Use your skills in every harness.

Longwave installs a skill collection once, and your Claude Code, Codex and OpenCode threads can all use it.

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