composer

composer is a skill for Claude Code, Codex from jstoup111/ai-conductor. It costs 55 tokens per session (2,161 once invoked), scanned A, original, Apache-2.0.

An interactive planning tool that turns a rough idea into an approved specification and sends it to the appropriate code repository. It handles planning and routing, while a separate repository process later builds the approved work.

In plain words
What is it for?
Use it to route new requests, run exploration and planning steps, create a specification pull request, and notify the repository's build process.
Why use it?
It gives ideas a defined path into development without mixing planning with implementation.

Skill for Claude CodeCodex

Written for Claude Code and Codex: disable-model-invocation in frontmatter, but also agents/openai.yaml present. Also seen: model in frontmatter; mentions Claude Code; mentions Codex.

Good fit Use it to route new requests, run exploration and planning steps, create a specification pull request, and notify the repository's build process.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/jstoup111/ai-conductor/composer
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 jstoup111/ai-conductor --skill composer
Clone the repo
git clone --depth 1 https://github.com/jstoup111/ai-conductor

Made for: Claude Code, 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 composer

README.md
[![agentmods](https://agentmods.dev/badge/skills/jstoup111/ai-conductor/composer.svg)](https://agentmods.dev/skills/jstoup111/ai-conductor/composer)
Your own site
<a href="https://agentmods.dev/skills/jstoup111/ai-conductor/composer"><img src="https://agentmods.dev/badge/skills/jstoup111/ai-conductor/composer.svg" alt="Measured on agentmods" height="20"></a>
Per session 55 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,161 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. 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: 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 9
    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 $0.00055 $0.02161
Opus 5 $0.00028 $0.01081
Sonnet 5 $0.00011 $0.00432
Haiku 4.5 $0.00006 $0.00216

Measured 8d ago against content hash bf7643e0b543, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

composer 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.

skills/composer/SKILL.md · 154 lines

How it starts

The opening of the file, as written. The whole thing — 154 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Purpose

The composer is the agent-hosted control plane for turning raw ideas into routed, approved specifications — without ever building. It is the interactive front half of the flywheel:

operator idea ─▶ [COMPOSER: route → DECIDE → spec PR → nudge]
                          │ merged spec PR
                          ▼
                 [DAEMON: build the merged spec]

Inside a live supported host-agent session, Claude Code invokes /composer; Codex invokes $composer. The ai-conductor compose terminal launcher is a Claude-only launcher: it opens an interactive claude /composer session. Native persistent-session launch and recovery for other hosts is deferred to #759; do not imply that this launcher creates a Codex session.

This is the idea→plan loop, not the execution loop. The per-repo daemon scans merged spec PRs and builds them; the only coupling is the merged spec PR and a fire-and-forget ensureRunning nudge. The composer never drives, waits on, or owns the daemon.

The loop needs real skills, agent personas, and hooks (/explore, /prd, /stories, /plan), so the composer is the supported host agent: it calls deterministic ai-conductor compose primitives for registry reads, guarded commits, PR opening, and daemon nudges, and runs DECIDE skills in chat.

Boundaries

  • Never build, never merge. The composer opens spec PRs; the operator merges them; the daemon builds them. Do not run /pipeline, /tdd, conduct (build mode), or gh pr merge.
  • Route artifacts to the target repo, never the composer's cwd. AuthoringGuard enforces this.
  • Author in a per-idea worktree, never the primary checkout. Authoring, land, and handoff use <target>/.worktrees/engineer-<slug>; never fall back to the shared checkout.
  • One idea at a time, operator-gated at every fork. Confirm routing, create-on-no-fit, and each DECIDE output. Never assume.

The Loop

Handle exactly ONE idea per session, then end. File-backed registry, lessons, and processed markers let the next fresh supported host-agent session recover the durable state. The Claude-only launcher (ai-conductor compose) relaunches Claude Code with clean context; other-host persistent session launch/recovery remains deferred to #759.

Read the full file on GitHub · 154 lines

Files

What ships with it

1 file 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 · 154 lines · 55 tokens per session scan A bf7643e0b543

Subscribe to this mod's changes

composer is a skill published in the GitHub repository jstoup111/ai-conductor (7 stars, last pushed today), licensed Apache-2.0. It adds 55 tokens to every session and 2,161 once invoked, about $0.0003 per session on Opus 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 2026-08-31.

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