{"slug":"principle-sequence-verifiable-units","title":"principle-sequence-verifiable-units","summary":"Apply to multi-step work (sweeps, migrations, runs of similar edits) and to how you stack commits and PRs. Break work into small units that each end in a verifiable state, check each before the next, and order delivery so the sequence proves itself to a reviewer.","platform":"Claude","tags":[],"authorName":"LLM Mart","authorSlug":"llm-mart","score":0,"source":"github","price":null,"verified":false,"createdAt":"2026-09-29T15:22:24.669602Z","repo":{"url":"https://github.com/michael-denyer/pstack-claude","stars":677,"forks":83,"license":"MIT","updatedAt":"2026-09-29T12:06:50Z"},"bodyHtml":"
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name: principle-sequence-verifiable-units\ndescription: \"Apply to multi-step work (sweeps, migrations, runs of similar edits) and to how you stack commits and PRs. Break work into small units that each end in a verifiable state, check each before the next, and order delivery so the sequence proves itself to a reviewer.\"\nuser-invocable: false

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Sequence work into verifiable units

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Order work as a sequence of small units, each ending in a state you can check, and don't advance until the current one is green.

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Why: A break caught at the unit that caused it is cheap to localize. A break caught after a batch is buried, and you have already built further on a broken base. Sequencing those same units into a delivery a reviewer can replay turns \"trust me\" into \"watch it go red, then green.\"

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Execution. In a sweep, migration, or any run of similar edits, verify each change before starting the next. Each unit is a before/after bracket: known-good state, one change, run the check, then proceed. Rebase onto clean trunk first so every check measures against the real baseline. When a lever does the edits, the per-unit check is nearly free. Run it anyway.

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Delivery. Stack commits and PRs in the order that proves the work. The canonical shape is the failing test first, then the fix on top. Other story orders are a subtraction before the reshape, a baseline capture before the treatment, the scaffold before the feature. Each commit lands on its own and the sequence reads as an argument.

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The sequencing complement to the prove-it-works principle skill, which keeps each check real, and the build-the-lever principle skill, which makes the per-unit check cheap.

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