principle-build-the-lever
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.
Pinned to revision 503a060802d6, so it is the text this page describes rather than whatever the author pushed since.
Files
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