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Three-point PERT estimation for implementation activities
Passed 19 of 23 test cases with the skill, and 16 of 23 without it.
3 fixed16 passed either way4 still failing0 broke
Tokens, turns and time describe resource use, not a dollar price.
One of 3 test cases the skill fixed. Same model, same prompt, with and without the skill.
Calculate the total variance for a critical path consisting of two independent PERT activities. Activity 1 has O=2, M=5, P=8. Activity 2 has O=4, M=10, P=16.
| Checked | Without skill | With skill |
|---|---|---|
| The response calculates the standard deviation for Activity 1 as 1 and Activity 2 as 2. | Missed | Passed |
| The response calculates the total critical path variance as 5. | Passed | Passed |
The instructions your model reads when the skill loads.
Estimate activity durations using three-point PERT methodology.
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 16 / 23 without
More skills from the same source and nearby in the registry, with their headline benchmark lift.