decompose

decompose is a skill for Claude Code, Codex from ashtonian/llm-init. It costs 11 tokens per session (392 once invoked), scanned A, original, MIT.

A task-planning workflow that splits a large coding request into independent pieces for several agents to handle.

In plain words
What is it for?
Use it to create a set of self-contained development tasks, record dependencies between them, and add verification steps and task files.
Why use it?
It removes the need to manually decide how work should be divided, ordered, and checked. It also identifies when a technical specification is missing.

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/ashtonian/llm-init/decompose
Any agent
npx skills add ashtonian/llm-init --skill decompose
Clone the repo
git clone --depth 1 https://github.com/ashtonian/llm-init

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 decompose

README.md
[![agentmods](https://agentmods.dev/badge/skills/ashtonian/llm-init/decompose.svg)](https://agentmods.dev/skills/ashtonian/llm-init/decompose)
Your own site
<a href="https://agentmods.dev/skills/ashtonian/llm-init/decompose"><img src="https://agentmods.dev/badge/skills/ashtonian/llm-init/decompose.svg" alt="Measured on agentmods" height="20"></a>
Per session 11 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 392 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 $0.00011 $0.00392
Opus 5 $0.00005 $0.00196
Sonnet 5 $0.00002 $0.00078
Haiku 4.5 $0.00001 $0.00039

Measured 4d ago against content hash 73b7e12ab23e, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

decompose 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 4d 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.

templates/.claude/skills/decompose/SKILL.md · 32 lines

What it actually says

Break the following request into parallel tasks for agent team execution.

Instructions

  1. Read docs/spec/.llm/PROGRESS.md for codebase patterns and prior context.
  2. Read docs/spec/.llm/STRATEGY.md for the current project decomposition.
  3. Read .claude/rules/agent-guide.md for tech stack and quality gates.
  4. Verify a technical spec exists for this work. If no spec exists, the first task must be "Create technical specification" using codegen.plan.llm as a reference for spec contents.
  5. Decompose the request into 2-8 independent subtasks following these rules:
    • Each task should take 75-150 Claude turns
    • Size test: If you can't describe a task in 2-3 sentences, split it further
    • Each task must be completable in one fresh context window
    • Prefer wide not deep -- maximize independent tasks, minimize dependency chains
    • Use ## Dependencies: Tasks NN, NN format for ordering
    • Each task must have its own ## Verification commands
    • Each task must be self-contained (an agent with no prior context can execute it)
  6. For each task, create a file in docs/spec/.llm/tasks/backlog/ using the template: docs/spec/.llm/templates/task.template.md
  7. Also create native tasks using TaskCreate for each task with appropriate blockedBy/blocks relationships.
  8. Update docs/spec/.llm/STRATEGY.md with the decomposition.
  9. Present the task list with dependencies to the user for approval.

Request

$ARGUMENTS

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. 4d ago First seen · 32 lines · 11 tokens per session scan A 73b7e12ab23e

Subscribe to this mod's changes

decompose is a skill published in the GitHub repository ashtonian/llm-init (2 stars, last pushed 6mo ago), licensed MIT. It adds 11 tokens to every session and 392 once invoked, about $0.0001 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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