Claude Code
Codex
Cursor
GitHub Copilot
Gemini CLIAbout this skill
Land a change in code that has no tests without altering what it silently does - locate the change points, find a seam where behavior can be sensed or substituted, break the dependency with sprout and wrap moves so the class becomes testable, pin current behavior with characterization tests, then make the change inside that safety net. Use when the task involves editing untested code, a module with no coverage that everyone avoids, or a change that must not break callers nobody can enumerate.
Quick start
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Review, license & listing details
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About scan coverage and limitationsAbout this listing
- Category
- General
- Reported license
- MIT
- Listing language (estimated)
- English
- Review status
- Not individually reviewed
- Agent compatibility
- Atlas installation supports Claude Code, Codex, and Cursor. Skill-specific dependencies and features are checked during setup.