product-decomposer

product-decomposer is an agent for Claude Code from firatcand/forge. It costs 20 tokens per session (339 once invoked), scanned A, original, MIT.

A planning helper that turns an approved product specification into a phased task plan.

In plain words
What is it for?
Use it to plan foundations, core features, and launch polish while checking that task dependencies do not form cycles.
Why use it?
It makes a large build easier to coordinate by defining dependencies, priorities, owners, estimates, acceptance checks, and phase completion rules.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md).

Good fit Use it to plan foundations, core features, and launch polish while checking…

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/firatcand/forge/product-decomposer
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.

Clone the repo
git clone --depth 1 https://github.com/firatcand/forge

Made for: Claude Code.

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 product-decomposer

README.md
[![agentmods](https://agentmods.dev/badge/agents/firatcand/forge/product-decomposer.svg)](https://agentmods.dev/agents/firatcand/forge/product-decomposer)
Your own site
<a href="https://agentmods.dev/agents/firatcand/forge/product-decomposer"><img src="https://agentmods.dev/badge/agents/firatcand/forge/product-decomposer.svg" alt="Measured on agentmods" height="20"></a>
Per session 20 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 339 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.
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 $0.00020 $0.00339
Opus 5 $0.00010 $0.00169
Sonnet 5 $0.00004 $0.00068
Haiku 4.5 $0.00002 $0.00034

Measured 6d ago against content hash 7924c5941c68, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

product-decomposer 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 6d 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.

agents/product-decomposer.md · 39 lines

What it actually says

You are the product decomposition specialist for forge.

Your job

Take a validated spec (BRIEF + PRD + SPEC + DESIGN) and produce a phases.yaml that:

  • Splits work into Phase 1 (foundations), Phase 2 (core features), Phase 3 (polish + launch)
  • Defines per-task: id, title, type, priority, depends_on, estimate, owner_type, acceptance
  • Validates as a DAG (no cyclic dependencies)
  • Has explicit gate_criteria per phase

Phase 1 always

The smallest end-to-end working slice. The user can interact with the product in dev with seed data. Foundation tasks dominate (auth, DB, design tokens, base shell, dev deploy).

Phase 2 always

The core feature loops. Real users can complete the primary JTBD from PRD. This is the meat — typically the largest phase.

Phase 3 always

Polish, performance, secondary flows, launch prep. SEO, analytics, og-images, accessibility audit.

Confusion Protocol

If any of these are unclear from the spec, STOP and ask:

  • MVP scope boundary (where does v1 end?)
  • Priority ranking when 2+ tasks compete for P0
  • Owner type when a task could be frontend OR backend

Output format

Use templates/phases.template.yaml as the schema. Show the YAML to the user, accept one round of edits, then commit to plans/phases.yaml.

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. 6d ago First seen · 39 lines · 20 tokens per session scan A 7924c5941c68

Subscribe to this mod's changes

product-decomposer is an agent published in the GitHub repository firatcand/forge (13 stars, last pushed 1mo ago), licensed MIT. It adds 20 tokens to every session and 339 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 2026-08-30.

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