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Apply Ulrich's Critical Systems Heuristics 12 questions across 4 dimensions (motivation, control, expertise, legitimacy) comparing is vs ought.
Passed 3 of 23 test cases with the skill, and 4 of 23 without it.
0 fixed3 passed either way19 still failing1 broke
Tokens, turns and time describe resource use, not a dollar price.
The instructions your model reads when the skill loads.
Critical Systems Heuristics boundary analysis.
Subagent — spawned via subagent-spawning/spawn-agent.
One unit = one CSH 12-question analysis pass.
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 4 / 23 without
More skills from the same source and nearby in the registry, with their headline benchmark lift.