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Get Started Free →Answer a specific question about a paper, grounding the answer in exact quoted evidence spans from the text (QASPER-style question-driven QA with span-level evidence, no schema categorization). Use this whenever the user asks a specific factual question about a paper and wants the answer traceable to exact text spans.
.claude/skills/yogsoth-ai-qasper-evidence-qa/SKILL.md| Test case | Without → With | Effect | Δ tokens | Δ turns |
|---|---|---|---|---|
| case-06 | ✗→✓ | ▲ Improved | -46% | 0% |
| case-04 | ✗→✓ | ▲ Improved | -57% | 0% |
| case-07 | ✗→✓ | ▲ Improved | 47% | 0% |
| case-09 | ✗→✓ | ▲ Improved | -16% | 0% |
| case-10 | ✗→✓ | ▲ Improved | 10% | 0% |
Question-driven QA with evidence-span grounding — free text, no normalized schema, since schema-driven categorization methods don't apply to open-ended paper questions.
Subagent — spawned via spawn-agent skill.
<!-- BEGIN available-tables (generated) -->
| SOP | When to use | | --- | --- | | spawn-agent | Spawn a customized CC subagent with full MCP tool access. |
<!-- END available-tables (generated) -->
| Case | Status | Duration (ms) | Turns | Tokens | Tool calls | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Without | With | Δ | Without | With | Δ | Without | With | Δ | Without | With | Δ | ||
case-06 | fail→pass | 18,207 | 11,154 | -39% | 1 | 1 | 0% | 2,150 | 1,156 | -46% | 0 | 0 | — |
case-01 | fail→fail | 7,161 | 18,912 | +164% | 1 | 1 | 0% | 306 | 2,349 | +668% | 0 | 0 | — |
case-02 | fail→fail | 7,300 | 17,813 | +144% | 1 | 1 | 0% | 348 | 608 | +75% | 0 | 0 | — |
case-03 | fail→fail | 7,155 | 31,348 | +338% | 1 | 1 | 0% | 356 | 1,955 | +449% | 0 | 0 | — |
case-04 | fail→pass | 16,097 | 9,001 | -44% | 1 | 1 | 0% | 1,754 | 752 | -57% | 0 | 0 | — |
case-05 | fail→fail | 6,919 | 19,863 | +187% | 1 | 1 | 0% | 280 | 1,012 | +261% | 0 | 0 | — |
case-07 | fail→pass | 16,897 | 18,869 | +12% | 1 | 1 | 0% | 1,684 | 2,481 | +47% | 0 | 0 | — |
case-08 | fail→fail | 17,739 | 18,598 | +5% | 1 | 1 | 0% | 2,381 | 639 | -73% | 0 | 0 | — |
case-09 | fail→pass | 24,184 | 23,210 | -4% | 1 | 1 | 0% | 3,665 | 3,096 | -16% | 0 | 0 | — |
case-10 | fail→pass | 12,712 | 11,804 | -7% | 1 | 1 | 0% | 1,232 | 1,352 | +10% | 0 | 0 | — |
case-11 | pass→pass | 19,971 | 17,090 | -14% | 1 | 1 | 0% | 2,184 | 1,826 | -16% | 0 | 0 | — |
case-12 | fail→fail | 10,687 | 18,851 | +76% | 1 | 1 | 0% | 1,201 | 2,858 | +138% | 0 | 0 | — |
case-13 | fail→pass | 21,149 | 14,547 | -31% | 1 | 1 | 0% | 2,522 | 1,649 | -35% | 0 | 0 | — |
case-14 | fail→pass | 19,092 | 6,983 | -63% | 1 | 1 | 0% | 2,306 | 377 | -84% | 0 | 0 | — |
case-15 | fail→pass | 21,085 | 10,634 | -50% | 1 | 1 | 0% | 3,032 | 1,097 | -64% | 0 | 0 | — |
case-16 | fail→pass | 38,361 | 13,223 | -66% | 1 | 1 | 0% | 2,231 | 1,630 | -27% | 0 | 0 | — |
case-17 | fail→fail | 15,094 | 26,558 | +76% | 1 | 1 | 0% | 1,933 | 3,787 | +96% | 0 | 0 | — |
case-18 | fail→pass | 27,325 | 11,838 | -57% | 1 | 1 | 0% | 3,502 | 1,236 | -65% | 0 | 0 | — |
case-19 | pass→pass | 20,727 | 19,264 | -7% | 1 | 1 | 0% | 2,194 | 2,247 | +2% | 0 | 0 | — |
case-20 | pass→fail | 16,005 | 19,354 | +21% | 1 | 1 | 0% | 2,046 | 743 | -64% | 0 | 0 | — |
case-21 | fail→fail | 7,429 | 7,900 | +6% | 1 | 1 | 0% | 333 | 529 | +59% | 0 | 0 | — |
case-22 | pass→fail | 42,830 | 18,780 | -56% | 1 | 1 | 0% | 8,233 | 678 | -92% | 0 | 0 | — |
case-23 | fail→fail | 9,853 | 18,707 | +90% | 1 | 1 | 0% | 758 | 848 | +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. 23 cases were attempted, and 17 counted toward the lift figure. The other 6 produced results that are not comparable between the two arms, so they are excluded from the headline rather than averaged into it. The headline lift of +35 percentage points is the difference between those two pass rates over the 17 comparable cases. 2 cases got worse with the skill loaded, and they are 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.