derekherman

Purity — Testing skill for Claude Code

Testing community

Test the product.

How to install Purity

Installs to ~/.claude/commands/derekherman-walter-purity.md

Terminal

mkdir -p ~/.claude/commands && curl -fsSL https://raw.githubusercontent.com/derekherman/walter/HEAD/.claude/commands/purity.md -o ~/.claude/commands/derekherman-walter-purity.md

Restart Claude Code, or start a new session, for it to be picked up.

What Purity does

name: purity description: Test the product. Tests passing ≠ done right. Does the work match the formula? 99.1% or nothing. argument-hint: "[scope]"

/purity

99.1% pure.

Intent

You're verifying quality. Not "does it run" — does it actually work? Does it match the intent? Tests passing is not the same as done right.

Load Skill

Load the `walter` skill first. Then read its `quality`, `execution`, and `decomposition` references. If the work involves frontend, UI, or vis

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