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Get Started Free →Retired — its runtime-neutrality contract
.claude/skills/boshu2-shared/SKILL.md| Test case | Without → With | Effect | Δ tokens | Δ turns |
|---|---|---|---|---|
| case-02 | ✗→✓ | ▲ Improved | -56% | 0% |
| case-06 | ✗→✓ | ▲ Improved | -64% | 0% |
| case-08 | ✗→✓ | ▲ Improved | -61% | 0% |
| case-13 | ✗→✓ | ▲ Improved | -78% | 0% |
| case-14 | ✗→✓ | ▲ Improved | -60% | 0% |
Semantically retired 2026-07-29 (bead age-skill-overhaul-reboot-sjv7v.11). The runtime-neutrality contract this library carried now lives at its declared owner: docs/contracts/runtime-neutrality.md.
This skill bundles nothing, produces nothing, grants nothing, and is loaded by nothing. The directory remains only for the observed-zero window: physical deletion follows once a declared observation period shows no remaining references resolve here.
| Case | Status | Duration (ms) | Turns | Tokens | Tool calls | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Without | With | Δ | Without | With | Δ | Without | With | Δ | Without | With | Δ | ||
case-05 | pass→pass | 4,651 | 4,934 | +6% | 1 | 1 | 0% | 720 | 889 | +23% | 0 | 0 | — |
case-01 | fail→fail | 6,707 | 4,320 | -36% | 1 | 1 | 0% | 396 | 895 | +126% | 0 | 0 | — |
case-02 | fail→pass | 12,404 | 4,023 | -68% | 1 | 1 | 0% | 1,781 | 784 | -56% | 0 | 0 | — |
case-03 | pass→pass | 11,813 | 3,656 | -69% | 1 | 1 | 0% | 1,889 | 726 | -62% | 0 | 0 | — |
case-04 | pass→pass | 9,359 | 4,098 | -56% | 1 | 1 | 0% | 1,544 | 820 | -47% | 0 | 0 | — |
case-06 | fail→pass | 11,353 | 3,039 | -73% | 1 | 1 | 0% | 1,822 | 659 | -64% | 0 | 0 | — |
case-07 | pass→pass | 10,252 | 4,078 | -60% | 1 | 1 | 0% | 1,705 | 845 | -50% | 0 | 0 | — |
case-08 | fail→pass | 11,244 | 3,397 | -70% | 1 | 1 | 0% | 1,646 | 647 | -61% | 0 | 0 | — |
case-09 | pass→pass | 4,647 | 2,646 | -43% | 1 | 1 | 0% | 714 | 598 | -16% | 0 | 0 | — |
case-10 | pass→pass | 10,517 | 3,025 | -71% | 1 | 1 | 0% | 849 | 619 | -27% | 0 | 0 | — |
case-11 | pass→pass | 8,262 | 3,915 | -53% | 1 | 1 | 0% | 1,270 | 764 | -40% | 0 | 0 | — |
case-12 | pass→pass | 9,352 | 3,305 | -65% | 1 | 1 | 0% | 1,514 | 629 | -58% | 0 | 0 | — |
case-13 | fail→pass | 9,954 | 2,467 | -75% | 1 | 1 | 0% | 1,509 | 335 | -78% | 0 | 0 | — |
case-14 | fail→pass | 12,316 | 4,023 | -67% | 1 | 1 | 0% | 1,908 | 768 | -60% | 0 | 0 | — |
case-15 | pass→pass | 11,850 | 4,185 | -65% | 1 | 1 | 0% | 2,211 | 850 | -62% | 0 | 0 | — |
case-16 | fail→pass | 10,315 | 2,191 | -79% | 1 | 1 | 0% | 1,595 | 481 | -70% | 0 | 0 | — |
case-17 | pass→pass | 3,919 | 3,477 | -11% | 1 | 1 | 0% | 632 | 628 | -1% | 0 | 0 | — |
case-18 | pass→pass | 7,938 | 3,225 | -59% | 1 | 1 | 0% | 1,382 | 659 | -52% | 0 | 0 | — |
case-19 | fail→pass | 8,327 | 4,014 | -52% | 1 | 1 | 0% | 1,350 | 732 | -46% | 0 | 0 | — |
case-20 | fail→pass | 9,653 | 10,707 | +11% | 1 | 1 | 0% | 1,728 | 1,967 | +14% | 0 | 0 | — |
case-21 | fail→fail | 16,350 | 16,531 | +1% | 1 | 1 | 0% | 2,784 | 2,871 | +3% | 0 | 0 | — |
case-22 | pass→pass | 12,450 | 10,824 | -13% | 1 | 1 | 0% | 2,161 | 1,911 | -12% | 0 | 0 | — |
DecimalAI ran this skill against gemini-3.6-flash twice over the same eval suite — once with the skill loaded and once without — and compared the two runs case by case. 22 cases were attempted. The headline lift of +36 percentage points is the difference between those two pass rates over the 22 comparable cases. 1 case got worse with the skill loaded, and it is included in that figure.
Without the skill loaded, the model failed this case. With it loaded, the same prompt on the same model passed. This is one improved case from the latest verified run; every case, including any that regressed, is in the table above.
Other measured skills in the registry, with their headline benchmark lift.