| name | variance-decomposition |
| description | Sobol variance decomposition — compute first-order and total-order sensitivity indices to quantify each parameter's contribution to output variance. |
| dependencies | {"tactics":["screening-then-decomposition"],"sops":["interaction-detection","sobol-decomposition"]} |
Variance Decomposition
Quantify each parameter's contribution to output variance.
Budget
| Base SOP | Target | ±10% Range |
|---|
| web-search | 20 | 18–22 |
| web-research | 10 | 9–11 |
| paper-overview | 30 | 27–33 |
| paper-search | 25 | 22–28 |
| paper-research | 15 | 13–17 |
State Ledger
<HARD-GATE>
| SOP | Done | Target | % |
|-----|------|--------|---|
| web-search | ? | 20 | ? |
| web-research | ? | 10 | ? |
| paper-overview | ? | 30 | ? |
| paper-search | ? | 25 | ? |
| paper-research | ? | 15 | ? |
Budget Gate: OPEN/CLOSED (>=80% required to exit)
</HARD-GATE>
Available Tactics
- screening-then-decomposition
Available SOPs
Import: web-search, web-research, paper-overview, paper-search, paper-research
Subagent: sobol-decomposition, interaction-detection
Execution Guidance
For parameters surviving screening, compute Sobol first-order (Si) and total-order (STi) indices. Si measures direct effect, STi-Si measures interaction contribution. Focus on parameters with high STi.
Available Tactics
Optional, no fixed order; the final leaf is always a sop.
| Tactic | When to use |
|---|
| screening-then-decomposition | Two-phase sensitivity — Morris quick screening to eliminate unimportant factors, then Sobol precise decomposition on survivors. Efficient allocation of analytical effort. |
Available SOPs
Optional, no fixed order; the final leaf is always a sop.
| SOP | When to use |
|---|
| interaction-detection | Detect and characterize significant parameter interactions from Sobol decomposition results. |
| sobol-decomposition | Sobol variance decomposition — compute first-order and total-order sensitivity indices for precise variance attribution. |
