Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add ReinaMacCredy/maestro --skill maestro-designgit clone --depth 1 https://github.com/ReinaMacCredy/maestroWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/reinamaccredy/maestro/maestro-design)<a href="https://agentmods.dev/skills/reinamaccredy/maestro/maestro-design"><img src="https://agentmods.dev/badge/skills/reinamaccredy/maestro/maestro-design/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/reinamaccredy/maestro/maestro-design"><img src="https://agentmods.dev/badge/skills/reinamaccredy/maestro/maestro-design.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 1 finding, up to medium
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- medium Excessive Agency · line 30 Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.Fix: Add human-in-the-loop confirmation for destructive, irreversible, or high-impact operations. Never auto-execute commands that modify files, send data, or alter system state.
What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00038 | $0.01887 |
| Opus 5.5 | $0.00015 | $0.00755 |
| Sonnet 5.5 | $0.00008 | $0.00377 |
| Haiku 4.5 | $0.00004 | $0.00189 |
Grade A, and why
maestro-design scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 8d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 163 lines — stays where its author put it; the contents beside it link to each section on GitHub.
maestro-design
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.
Mode per unknown
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.
Intake
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 |
|---|---|
| state unknown | scout, no-write |
| several architectures | two or three decision lanes |
| contract clear | delivery |
| candidate needs breaking | challenge |
| hard-to-reverse fork | council |
What ships with it
3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 8d ago Changed d1131a6a55ea
- 27d ago Changed · +22 lines 370252b92b2d
- 1mo ago Changed · +6 lines · -24 tokens per session bcb5d3308204
- 1mo ago Changed · -4 lines d2179acba634
- 1mo ago Changed · +44 lines · +29 tokens per session c5e2ff87ad8f
- 1mo ago First seen · 95 lines · 33 tokens per session scan A 725fbcc01176
maestro-design is a skill published in the GitHub repository ReinaMacCredy/maestro (235 stars, last pushed 9d ago), licensed MIT. It adds 38 tokens to every session and 1,887 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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