Use big-plan for broad or risky repo changes needing codebase inspection, websearch, and deeper refinement; exclude direct implementation-only, factual/explanation, trivial, or explicit no-plan requests.
SkillScore41Maintained
Automatic
◆Project Management pack
Last verified 8/24/2026
What it changes
Passed 5 of 11 test cases with the skill, and 4 of 11 without it.
Without skill32%
With skill41%
Checks it passed that the model alone missed
States a timeout duration of 1800 seconds.
Specifies a maximum limit of 5 refinement rounds.
Asks between 5 and 10 initial planning questions.
and 3 more in the full report
6 fixed3 passed either way9 still failing4 broke
Pass-rate lift
+9 pp
Tokens
+12%
Agent turns
0%
Response time
+7%
Model gemini-3.6-flashMeasured 8/24/2026v19 of 22 cases passed with skill · 11 comparable
Tokens, turns and time describe resource use, not a dollar price.
See it in action
One of 6 test cases the skill fixed. Same model, same prompt, with and without the skill.
1 of 6
Prompt
During the review phase of our API gateway modernization plan, what is the maximum number of high-priority feedback items allowed per round?
What was checked, without and with the skill
Checked
Without skill
With skill
Limits high-priority items to at most 5 per round.
Missed
Passed
case-08 · gemini-3.6-flash · 8/24/2026 · answers are capped and redacted
What's inside
The instructions your model reads when the skill loads.
SKILL.md5 linessingle file
Big Plan
Read and follow ../optim-plans/SKILL.md, treating the request as if it named big-plan.
Depth: big-plan means 5 to 10 planning questions, required brainstorming websearch, at most five refinement rounds, an 1800 second reviewer/criticizer timeout, and at most five high-priority comments or questions per round.