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Confirm the target contract's tests fail for the right reason before implementing — new work or rework, never a test defect.
Codex または Claude でインストール この Prompt をコピーして Codex、Claude、または他のアシスタントに貼り付けると、Skill ページを確認してインストールできます。
SOC 職業分類に基づく
Compile the contract set in your head — simulate how the real application would run from the specs, and disprove (or confirm) it works before any source .py is written.
Author test stub files (.pyi) whose signatures express the domain, relationships, and compositions, as the first contract surface.
Funnel level 3 — identify building-block names and rough boundaries only, and run gap analysis.
Funnel level 1 — establish the big picture with seven broad questions, applying CIT, Laddering, and CI Perspective throughout.
Squash-merge the feature commits into dev, regenerate docstrings, and verify the whole suite plus whole-suite stubtest are clean.
Publish the delivered batch as release notes, a PR to main, or a tagged release.
| name | confirm-red-failure |
| description | Confirm the target contract's tests fail for the right reason before implementing — new work or rework, never a test defect. |
import pytest when the test used it for nothing else — run ruff and drop the unused import; that is a lint side-effect of un-marking, not a behaviour edit. Do not author tests; they already exist with full bodies.ImportError THEN new work; IF the source .py exists but is stale against the changed contract and an assertion fails THEN rework. Either is the right reason per [[software-craft/tdd]]..cache/<session_id>/journal.md (contract, the gap, the evidence) and fire reveals-gap. This routes back to plan, not green.