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| Test case | Without → With | Effect | Δ tokens | Δ turns |
|---|---|---|---|---|
| case-07 | ✗→✓ | ▲ Improved | -41% | 0% |
| case-11 | ✗→✓ | ▲ Improved | -57% | 0% |
| case-03 | ✓→✓ | = Same ✓ | -37% | 0% |
| case-04 | ✓→✓ | = Same ✓ | -35% | 0% |
| case-05 | ✓→✓ | = Same ✓ | -54% | 0% |
Use this skill when the user wants confidence that a feature, fix, or refactor actually works.
Turn vague “it should work” claims into concrete evidence.
Other measured skills in the registry, with their headline benchmark lift.