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Trace UDE to root cause via IF...THEN...BECAUSE logic chains
Passed 17 of 22 test cases with the skill, and 11 of 22 without it.
and 6 more in the full report
8 fixed9 passed either way3 still failing2 broke
Tokens, turns and time describe resource use, not a dollar price.
One of 8 test cases the skill fixed. Same model, same prompt, with and without the skill.
We need to run a complex root cause tracing session across a large distributed codebase requiring custom tool access and isolated execution context. How should the execution environment be established?
| Checked | Without skill | With skill |
|---|---|---|
| Spawns a specialized subagent using the spawn-agent execution mechanism | Missed | Passed |
The instructions your model reads when the skill loads.
Trace each Undesirable Effect backward through causal chains using IF...THEN...BECAUSE logic to find root causes and convergence points.
Subagent — spawned via subagent-spawning/spawn-agent skill.
Optional, no fixed order; the final leaf is always a sop.
| SOP | When to use |
|---|---|
| spawn-agent | Spawn a customized CC subagent with full MCP tool access. Used by SOPs that declare execution: subagent. |
test cases passed, vs 11 / 22 without
More skills from the same source and nearby in the registry, with their headline benchmark lift.