multi-model-orchestrator

multi-model-orchestrator is a skill for Codex from majiayu000/spellbook. It costs 31 tokens per session (1,378 once invoked), scanned B, original, MIT.

A workflow for coordinating several AI agents on one complex task using a shared handoff document. The document records the plan, assignments, dependencies, results, and combined feedback.

In plain words
What is it for?
Use it to break down large tasks, assign work to different agents, track execution, combine findings, and plan next steps.
Why use it?
It prevents parallel work from becoming disconnected or untraceable. Each agent can see what others are doing and what remains unresolved.

Skill for Codex

Written for Codex: runs codex exec. Also seen: mentions Claude Code; mentions Codex.

Good fit Use it to break down large tasks, assign work to different agents, track execution, combine findings, and plan next steps.

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Install with agentmods
npx agentmods add skills/majiayu000/spellbook/multi-model-orchestrator
Install

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.

Any agent
npx skills add majiayu000/spellbook --skill multi-model-orchestrator
Clone the repo
git clone --depth 1 https://github.com/majiayu000/spellbook

Made for: Codex.

Wrote 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.

agentmods badge for multi-model-orchestrator

README.md
[![agentmods](https://agentmods.dev/badge/skills/majiayu000/spellbook/multi-model-orchestrator/github.svg)](https://agentmods.dev/skills/majiayu000/spellbook/multi-model-orchestrator)
Your own site
<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.

agentmods 80×15 button for multi-model-orchestrator

Your own site · 80×15
<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>
Per session 31 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,378 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 1 finding. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
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.
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce 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

Measured 8d ago against content hash 41b6a816a507, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

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
skills/multi-model-orchestrator/SKILL.md · 142 lines

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:

  1. High-level planning — breaking down a big goal into concrete subtasks
  2. Parallel execution — different agents handling different task types simultaneously
  3. Feedback synthesis — collecting results and iterating intelligently
  4. 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

Read the full file on GitHub · 142 lines

Files

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.

Changes

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.

  1. 8d ago First seen · 142 lines · 31 tokens per session scan B 41b6a816a507

Subscribe to this mod's changes

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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