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 majiayu000/spellbook --skill multi-model-orchestratorgit clone --depth 1 https://github.com/majiayu000/spellbookWrote 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/majiayu000/spellbook/multi-model-orchestrator)<a href="https://agentmods.dev/skills/majiayu000/spellbook/multi-model-orchestrator"><img src="https://agentmods.dev/badge/skills/majiayu000/spellbook/multi-model-orchestrator/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/majiayu000/spellbook/multi-model-orchestrator"><img src="https://agentmods.dev/badge/skills/majiayu000/spellbook/multi-model-orchestrator.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 3 findings, up to high
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 →
- high Agent Snooping · line 106 Skill reads from agent configuration directories (.claude/, .codex/, .gemini/). These directories may contain API keys, personal settings, and other credentials that the skill has no legitimate need to access.Fix: Remove all code or instructions that access agent configuration directories (.claude/, .codex/, .gemini/). If configuration values are needed, pass them explicitly as parameters or environment variabl
- high Excessive Agency · line 117 Skill selects an external model or provider that may use a different account or billing plan than the operator expects. Undisclosed model switches can cause unexpected cost or quota consumption.Fix: Remove the model/provider override or disclose it prominently and require explicit operator approval before invoking an external coding CLI or billed model.
- high Excessive Agency · line 123 Skill selects an external model or provider that may use a different account or billing plan than the operator expects. Undisclosed model switches can cause unexpected cost or quota consumption.Fix: Remove the model/provider override or disclose it prominently and require explicit operator approval before invoking an external coding CLI or billed model.
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 | $0.00031 | $0.01378 |
| Opus 5 | $0.00015 | $0.00689 |
| Sonnet 5 | $0.00006 | $0.00276 |
| Haiku 4.5 | $0.00003 | $0.00138 |
Grade B, and why
multi-model-orchestrator scanned grade B with 1 finding 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.
Reads agent configuration directoriesmediumAgent snooping
.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.
2. Run: `cat .claude/handoffs/task.yaml` to load it in conversation How it starts
The opening of the file, as written. The whole thing — 142 lines — stays where its author put it; the contents beside it link to each section on GitHub.
multi-model-orchestrator
Decompose. Execute. Synthesize.
A lightweight skill for coordinating work across multiple AI agents (Claude, Opus, Haiku, Codex, or any agent) using a single handoff document as the source of truth.
Why This Skill
Complex work often requires:
- High-level planning — breaking down a big goal into concrete subtasks
- Parallel execution — different agents handling different task types simultaneously
- Feedback synthesis — collecting results and iterating intelligently
- Full traceability — understanding who did what, why, and what changed
This skill provides the structure and templates to do this cleanly.
Operating Contract
Direct actions: create or update one handoff document as the source of truth, decompose the goal into executor-ready subtasks, assign explicit dependencies, record execution results, and synthesize feedback into next steps.
Escalate before: starting execution when the goal, constraints, executor choice, writable scope, or done criteria are ambiguous.
Evidence-backed pushback: reject unverified completion claims, vague agent outputs, missing acceptance criteria, or parallel assignments that touch shared writable files without explicit ordering.
Feedback loop: after each execution round, update the handoff with result, evidence, blockers, and next action before assigning follow-up work.
When to Use
✅ Use when:
- A single-agent conversation would be too long or unfocused
- You want to parallelize work across multiple specialized agents
- You need to decompose a vague goal into specific, executor-ready tasks
- You want to track decisions, changes, and feedback in one place
- You're exploring multiple approaches simultaneously (A/B/C branches)
❌ Don't use when:
- The task is simple and one agent can handle it end-to-end
- You don't need to track who did what
- Execution is strictly sequential with no parallelization
- The task is exploratory with no clear structure
What ships with it
10 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.
- LICENSE 1.0 KB
- README.md 7.8 KB
- references/add-auth-to-api.yaml 14 KB
- references/advanced-sync.md 972 B
- references/best-practices.md 1.6 KB
- references/faq.md 1.4 KB
- references/handoff-structure.md 2.1 KB
- references/quick-start.md 3.6 KB
- references/workflow-patterns.md 1.5 KB
- templates/handoff-template.yaml 3.1 KB
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 First seen · 142 lines · 31 tokens per session scan B 41b6a816a507
multi-model-orchestrator is a skill published in the GitHub repository majiayu000/spellbook (278 stars, last pushed today), licensed MIT. It adds 31 tokens to every session and 1,378 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it B with 1 finding (reads agent configuration directories). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.
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