compose-agent

A guided assembler that combines existing agent skills, workflows, identity files, and backend settings into a runnable AI agent.

In plain words
What is it for?
Finding available agents, skills, workflows, and dispatch backends, then selecting components, models, permissions, or a starting agent to assemble.
Why use it?
It connects separate building blocks and helps update or fork an existing agent without wiring each part by hand.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/gettalon/talon-plugins/compose-agent
Any agent
npx skills add gettalon/talon-plugins --skill compose-agent
Clone the repo
git clone --depth 1 https://github.com/gettalon/talon-plugins

Made for: Claude Code, Codex.

Per session 54 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,079 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00054 $0.01079
Opus 5 $0.00027 $0.00540
Sonnet 5 $0.00011 $0.00216
Haiku 4.5 $0.00005 $0.00108

Measured 2d ago against content hash a5acad9c7386, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

compose-agent 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 2d 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.

plugins/agent-factory/skills/compose-agent/SKILL.md · 161 lines

How it starts

The opening of the file, as written. The whole thing — 161 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Compose Agent — Assembly and Wiring

Take existing components (skills, workflows, SOUL.md, backend config) and wire them into a complete, runnable agent.

When to Use

  • User has standalone skills and wants to bundle them into an agent
  • User wants to add a skill or workflow to an existing agent
  • User wants to change an agent's backend, model, or tool permissions
  • User wants to fork an existing agent for a different domain

Process

Step 1: Inventory

Discover what exists:

  1. Check for existing agents:

    Find directories matching: agents/*/AGENT.yaml
    
  2. Check for standalone skills:

    Find files matching: skills/*/SKILL.md
    
  3. Check for standalone workflows:

    Find files matching: workflows/*.yaml
    
  4. Check dispatch backends:

    Read ~/.config/ai-dispatch/config.json for available backends
    

Present the inventory to the user.

Step 2: Select Components

Ask the user:

  1. Base: "Start from scratch or fork an existing agent?"

    • If forking: copy the agent directory and modify
  2. Skills: "Which skills should this agent include?"

    • List available skills with descriptions
    • Allow selecting existing or noting new ones to create
  3. Workflows: "Does this agent need workflow enforcement?"

    • List available workflows
    • Allow selecting existing or noting new ones to create
  4. Backend: "Which backend should it use?"

    • List available dispatch backends
    • Default, specific provider, or multi-backend routing
  5. Identity: "Keep/modify the SOUL.md or create new?"

Step 3: Assemble

Create or update the agent directory:

If creating new:

agents/<name>/
├── SOUL.md
├── AGENT.yaml
├── skills/
│   ├── <skill-1>/SKILL.md    ← copy or symlink
│   └── <skill-2>/SKILL.md
├── workflows/
│   └── <workflow>.yaml        ← copy or symlink
└── memory/

If modifying existing:

  1. Read current AGENT.yaml
  2. Add/remove skills from the skills list
  3. Add/remove workflows from the workflows list
  4. Update configuration as needed
  5. Validate any new workflow files

Read the full file on GitHub · 161 lines

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. 2d ago First seen · 161 lines · 54 tokens per session scan A a5acad9c7386

Subscribe to this mod's changes

compose-agent is a skill published in the GitHub repository gettalon/talon-plugins (6 stars, last pushed 5mo ago), licensed MIT. It adds 54 tokens to every session and 1,079 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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