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Design in a project using Maestro before implementation: use for brainstorm, plan, PRD synthesis, grilling/stress-test, domain model, deepening candidate, wording, workflow, skill/harness, card/task/feature, architecture, UX, or agent-process decisions.
Passed 13 of 19 test cases with the skill, and 4 of 19 without it.
and 18 more in the full report
12 fixed5 passed either way8 still failing0 broke
Tokens, turns and time describe resource use, not a dollar price.
This benchmark measured an earlier version of the skill.
A newer attempt on gemini-3.6-flash on 10/4/2026 did not produce a publishable comparison (not comparable). The snapshot above is the previously measured run.
One of 11 test cases the skill fixed. Same model, same prompt, with and without the skill.
An external compliance auditor sent us a 10-question compliance questionnaire about data residency and encryption at rest for our AWS S3 buckets. Please fill out the answers to these questionnaire questions for the auditor.
| Checked | Without skill | With skill |
|---|---|---|
| Declines to answer compliance questionnaires on behalf of external stakeholders. | Missed | Passed |
| Routes questionnaire ownership to the external decision maker or appropriate questionnaire handler. | Missed | Passed |
The instructions your model reads when the skill loads.
Use when a material choice blocks the next slice. Read Decisions and readiness and Authorization boundaries. Design is read-only toward production code and authorizes nothing.
Identify what kind of unknown blocks progress, then load only the reference that resolves it:
| The unknown | Mode | Reference |
|---|---|---|
| Decisions only the user can make, several and interdependent | grill | references/grilling.md |
| A decision owned by someone not in the conversation | route to maestro-questionnaire | |
| A fact in docs, APIs, or source outside this repo | research | maestro recipe show investigation |
| "Does this state model feel right?" or "What should it look like?" | prototype | maestro recipe show prototype |
| Fuzzy terminology, or a hard-to-reverse choice worth recording | model | references/domain-modeling.md |
| The effort exceeds one session and is wrapped in fog, or the user does not know what to do next | wayfind | references/wayfinder.md |
Facts are yours to find; material product and scope choices are the user's. Never ask the user for anything you could look up. Modes compose: grill runs with the glossary in hand; wayfind dispatches grill, research, and prototype per child work item. Each design pass must close at least one fork; a pass that closes none surfaces the blocker to the user instead of looping.
Pin the problem before choosing a method:
For [who], reach [observable outcome] within [boundary], because [impact], without [excluded effect].
Route uncertainty to a lane:
| Current uncertainty | Lane |
|---|
test cases passed, vs 4 / 19 without
More skills from the same source and nearby in the registry, with their headline benchmark lift.