Fortify

Target: $ARGUMENTS (file, directory, or module — if blank, use unstaged changes)

Pre-loaded context

• Unstaged changes: !git diff --name-only

Before proceeding, use the Read tool to read package.json (for test runner config).

Workflow

1. Scope

Identify target files. If $ARGUMENTS is blank, use unstaged changed files.

• Read each target file
• Read its existing test file (co-located *.test.ts or __tests__/)
• If no test file exists, note it