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Expand concept fan from purpose through concepts to directions to ideas (de Bono Concept Fan).
Passed 6 of 22 test cases with the skill, and 5 of 22 without it.
1 fixed5 passed either way16 still failing0 broke
Tokens, turns and time describe resource use, not a dollar price.
A test case the skill fixed. Same model, same prompt, with and without the skill.
Why does performing a concept fan expansion for renewable energy grid storage mandate spawning a subagent rather than generating the fan in the primary conversation context?
| Checked | Without skill | With skill |
|---|---|---|
| States that a subagent provides dedicated context needed to maintain multiple levels of abstraction simultaneously. | Missed | Passed |
The instructions your model reads when the skill loads.
Expand concept fan from purpose through concepts to ideas.
Subagent — spawned via subagent-spawning/spawn-agent skill.
Concept fan expansion requires maintaining multiple abstraction levels simultaneously and generating ideas at each level. Benefits from dedicated context that can hold the full fan structure while exploring each branch.
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 5 / 22 without
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