Loading skill
Install any skill in seconds. Free to start, no credit card required.
Get Started Free →Unreal Engine Chaos physics skill for destruction, vehicle simulation, and cloth physics.
.claude/skills/a5c-ai-unreal-chaos/SKILL.md| Test case | Without → With | Effect | Δ tokens | Δ turns |
|---|---|---|---|---|
| case-02 | ✓→✓ | ＝ Same ✓ | -4% | 0% |
| case-03 | ✓→✓ | ＝ Same ✓ | 26% | 0% |
| case-04 | ✓→✓ | ＝ Same ✓ | 22% | 0% |
| case-05 | ✓→✓ | ＝ Same ✓ | -13% | 0% |
| case-06 | ✓→✓ | ＝ Same ✓ | 16% | 0% |
Chaos physics system for Unreal Engine.
This skill provides capabilities for implementing physics-based destruction, vehicles, and soft body simulation using Unreal's Chaos physics system.
1. Create Geometry Collection from mesh
2. Configure fracture settings
3. Add cluster connections
4. Set physics properties
5. Place in levelcpp// Configure in Vehicle Movement Component WheelSetups.Add(FWheelSetup{ WheelClass, BoneName, WheelOffset });
| Case | Status | Duration (ms) | Turns | Tokens | Tool calls | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Without | With | Δ | Without | With | Δ | Without | With | Δ | Without | With | Δ | ||
case-01 | fail→fail | 21,665 | 18,260 | -16% | 1 | 1 | 0% | 2,794 | 2,522 | -10% | 0 | 0 | — |
case-02 | pass→pass | 16,876 | 14,087 | -17% | 1 | 1 | 0% | 2,341 | 2,247 | -4% | 0 | 0 | — |
case-03 | pass→pass | 17,049 | 20,705 | +21% | 1 | 1 | 0% | 2,822 | 3,544 | +26% | 0 | 0 | — |
case-04 | pass→pass | 18,004 | 19,339 | +7% | 1 | 1 | 0% | 2,842 | 3,461 | +22% | 0 | 0 | — |
case-05 | pass→pass | 13,863 | 10,079 | -27% | 1 | 1 | 0% | 2,057 | 1,791 | -13% | 0 | 0 | — |
case-06 | pass→pass | 15,820 | 15,776 | -0% | 1 | 1 | 0% | 2,368 | 2,750 | +16% | 0 | 0 | — |
case-07 | pass→pass | 6,098 | 5,156 | -15% | 1 | 1 | 0% | 1,141 | 1,059 | -7% | 0 | 0 | — |
case-08 | fail→fail | 10,849 | 5,931 | -45% | 1 | 1 | 0% | 1,584 | 1,126 | -29% | 0 | 0 | — |
case-09 | pass→pass | 10,711 | 10,985 | +3% | 1 | 1 | 0% | 1,805 | 1,706 | -5% | 0 | 0 | — |
case-10 | pass→pass | 19,445 | 12,952 | -33% | 1 | 1 | 0% | 2,485 | 2,023 | -19% | 0 | 0 | — |
case-11 | pass→pass | 18,082 | 15,264 | -16% | 1 | 1 | 0% | 2,609 | 2,351 | -10% | 0 | 0 | — |
case-12 | pass→pass | 17,897 | 15,560 | -13% | 1 | 1 | 0% | 2,764 | 2,536 | -8% | 0 | 0 | — |
case-13 | pass→pass | 19,840 | 21,488 | +8% | 1 | 1 | 0% | 2,544 | 3,078 | +21% | 0 | 0 | — |
case-14 | pass→pass | 18,888 | 16,414 | -13% | 1 | 1 | 0% | 2,524 | 2,829 | +12% | 0 | 0 | — |
case-15 | pass→pass | 10,985 | 10,933 | -0% | 1 | 1 | 0% | 1,537 | 1,753 | +14% | 0 | 0 | — |
case-16 | pass→pass | 12,595 | 11,035 | -12% | 1 | 1 | 0% | 1,859 | 2,001 | +8% | 0 | 0 | — |
case-17 | pass→pass | 17,348 | 16,466 | -5% | 1 | 1 | 0% | 2,445 | 2,501 | +2% | 0 | 0 | — |
case-18 | pass→pass | 8,219 | 3,299 | -60% | 1 | 1 | 0% | 1,281 | 826 | -36% | 0 | 0 | — |
case-19 | pass→pass | 11,650 | 7,406 | -36% | 1 | 1 | 0% | 1,491 | 1,208 | -19% | 0 | 0 | — |
case-20 | fail→fail | 8,331 | 4,579 | -45% | 1 | 1 | 0% | 1,111 | 1,049 | -6% | 0 | 0 | — |
case-21 | pass→pass | 20,651 | 14,191 | -31% | 1 | 1 | 0% | 2,490 | 2,252 | -10% | 0 | 0 | — |
case-22 | pass→pass | 8,839 | 9,734 | +10% | 1 | 1 | 0% | 1,241 | 1,681 | +35% | 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 0 percentage points is the difference between those two pass rates over the 22 comparable cases.
Other measured skills in the registry, with their headline benchmark lift.