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Use when deciding how to validate a change with the smallest reliable local test or check.
Install with Codex or Claude Copy this prompt, paste it into Codex, Claude, or another assistant, and let it review the skill page and install it for you.
Use before deploying Monorepo on a VPS or creating global agent links.
Use before committing, reviewing, or summarizing local changes in a shared repository.
Use before editing when a directory may have local AGENTS.md, CLAUDE.md, or adapter instructions.
Use when you need to understand repository structure, ownership boundaries, or where to make a change.
Use when making code or documentation changes in a workspace with multiple human or agent contributors.
Based on SOC occupation classification
| name | test-runner |
| description | Use when deciding how to validate a change with the smallest reliable local test or check. |
Use this skill after implementation or before risky refactors.
Do not invent test coverage. Validation should match the risk of the change.
