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Get Started Free →Builds cross-platform mobile applications with React Native and Expo including navigation, native modules, FlatList optimization, and platform-specific code.
.claude/skills/paperclipai-react-native-expert/SKILL.md| Test case | Without → With | Effect | Δ tokens | Δ turns |
|---|---|---|---|---|
| case-22 | ✓→✗ | ▼ Worse | 38% | 0% |
| case-03 | ✓→✓ | ＝ Same ✓ | 6% | 0% |
| case-01 | ✓→✓ | ＝ Same ✓ | -8% | 0% |
| case-02 | ✓→✓ | ＝ Same ✓ | 21% | 0% |
| case-04 | ✓→✓ | ＝ Same ✓ | 30% | 0% |
name: react-native-expert description: > Builds cross-platform mobile applications with React Native and Expo including navigation, native modules, FlatList optimization, and platform-specific code. metadata: sources:
repo: jeffallan/claude-skills path: skills/react-native-expert/SKILL.md commit: 3bf9a24b76a7c122f1fc05e83929fbc84e1c207a attribution: Jeffallan license: MIT usage: referenced
| Case | Status | Duration (ms) | Turns | Tokens | Tool calls | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Without | With | Δ | Without | With | Δ | Without | With | Δ | Without | With | Δ | ||
case-03 | pass→pass | 12,521 | 16,239 | +30% | 1 | 1 | 0% | 2,578 | 2,730 | +6% | 0 | 0 | — |
case-01 | pass→pass | 13,157 | 12,009 | -9% | 1 | 1 | 0% | 2,930 | 2,702 | -8% | 0 | 0 | — |
case-02 | pass→pass | 16,353 | 20,166 | +23% | 1 | 1 | 0% | 3,457 | 4,178 | +21% | 0 | 0 | — |
case-04 | pass→pass | 13,984 | 17,902 | +28% | 1 | 1 | 0% | 2,641 | 3,424 | +30% | 0 | 0 | — |
case-05 | fail→fail | 10,688 | 8,997 | -16% | 1 | 1 | 0% | 1,808 | 2,068 | +14% | 0 | 0 | — |
case-06 | fail→fail | 5,292 | 8,057 | +52% | 1 | 1 | 0% | 1,070 | 1,411 | +32% | 0 | 0 | — |
case-07 | pass→pass | 11,883 | 11,822 | -1% | 1 | 1 | 0% | 2,407 | 2,674 | +11% | 0 | 0 | — |
case-08 | pass→pass | 11,027 | 38,487 | +249% | 1 | 1 | 0% | 1,739 | 2,145 | +23% | 0 | 0 | — |
case-09 | fail→fail | 24,585 | 16,485 | -33% | 1 | 1 | 0% | 3,696 | 3,659 | -1% | 0 | 0 | — |
case-10 | pass→pass | 18,307 | 17,402 | -5% | 1 | 1 | 0% | 3,333 | 3,984 | +20% | 0 | 0 | — |
case-11 | pass→pass | 12,707 | 14,251 | +12% | 1 | 1 | 0% | 2,779 | 3,289 | +18% | 0 | 0 | — |
case-21 | pass→pass | 27,180 | 18,429 | -32% | 1 | 1 | 0% | 4,675 | 4,528 | -3% | 0 | 0 | — |
case-12 | pass→pass | 6,083 | 4,771 | -22% | 1 | 1 | 0% | 949 | 1,060 | +12% | 0 | 0 | — |
case-13 | pass→pass | 8,830 | 9,513 | +8% | 1 | 1 | 0% | 1,926 | 1,767 | -8% | 0 | 0 | — |
case-14 | pass→pass | 13,788 | 13,280 | -4% | 1 | 1 | 0% | 3,057 | 3,161 | +3% | 0 | 0 | — |
case-15 | pass→pass | 13,296 | 14,804 | +11% | 1 | 1 | 0% | 2,795 | 3,284 | +17% | 0 | 0 | — |
case-22 | pass→fail | 13,615 | 21,321 | +57% | 1 | 1 | 0% | 3,341 | 4,618 | +38% | 0 | 0 | — |
case-16 | pass→pass | 12,449 | 14,196 | +14% | 1 | 1 | 0% | 3,011 | 3,485 | +16% | 0 | 0 | — |
case-17 | pass→pass | 12,883 | 53,694 | +317% | 1 | 1 | 0% | 3,305 | 3,761 | +14% | 0 | 0 | — |
case-18 | pass→pass | 10,897 | 7,703 | -29% | 1 | 1 | 0% | 2,230 | 2,111 | -5% | 0 | 0 | — |
case-19 | pass→pass | 11,980 | 13,857 | +16% | 1 | 1 | 0% | 2,758 | 3,279 | +19% | 0 | 0 | — |
case-20 | pass→pass | 21,903 | 13,308 | -39% | 1 | 1 | 0% | 4,635 | 2,976 | -36% | 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 -100 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.
Other measured skills in the registry, with their headline benchmark lift.