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---
name: test-value
description: Write or review pytest and Vitest tests for distinct regression coverage and safe redundancy removal.
---
Run `code-standards observe --test-value --base BASE` for changes; omit `--base`
for the suite. Executable Oxlint config needs `--trust-repository-code`.
Check changed fixtures/consumers with `code-standards check`.
Name the contract, plausible wrong outcome and cheapest faithful oracle. Reuse
sufficient coverage; review comments/coverage percentages alone justify no test.
Retain required gates.
Delete/merge only when retained cases reject the same wrong outcomes with
compatible inputs, actions, fixtures, marks, runtime, order and effects.
Preserve ordered scenarios and smoke/compatibility/representation contracts.
Read [oracles](references/oracles.md) for integration and fixture-liveness decisions.
Rerun affected consumers. Report keep/strengthen/merge/delete with location,
wrong outcome, covering check and evidence. Advisory/incomplete results never
prove redundancy.
