principle-build-the-lever

By cursor. Updated September 8, 2026. Categories: Automation Tools.

Apply to any non-trivial work, not just bulk work: edits, migrations, analyses, checks. Build the tool that does it or proves it (codemod, script, generator, or a skill your subagents follow) instead of working by hand. The tool is the artifact a reviewer can rerun.

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SKILL.md

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