planning-and-task-breakdown

planning-and-task-breakdown is a skill for Claude Code from aneja5/forge-skills. It costs 58 tokens per session (2,196 once invoked), scanned A, original, MIT.

A planning process that turns product requirements and system design into a dependency-ordered list of implementation tasks. Each task is sized and shaped as a complete, verifiable slice of work.

In plain words
What is it for?
Use it to prepare a sprint plan, identify the critical path, and split a larger project into implementable tasks.
Why use it?
It makes the work and its dependencies visible before coding starts, reducing surprises and stalled tasks.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the forge-skills plugin — 42 skills, 36 commands, 1 hook shipped together

Good fit Use it to prepare a sprint plan, identify the critical path, and split a larger project into implementable tasks.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/aneja5/forge-skills/planning-and-task-breakdown
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 aneja5/forge-skills --skill planning-and-task-breakdown
Clone the repo
git clone --depth 1 https://github.com/aneja5/forge-skills

Made for: Claude Code.

Or install forge-skills, the plugin that ships this one along with the rest of its 42 skills, 36 commands, 1 hook.

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 planning-and-task-breakdown

README.md
[![agentmods](https://agentmods.dev/badge/skills/aneja5/forge-skills/planning-and-task-breakdown/github.svg)](https://agentmods.dev/skills/aneja5/forge-skills/planning-and-task-breakdown)
Your own site
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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.

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Your own site · 80×15
<a href="https://agentmods.dev/skills/aneja5/forge-skills/planning-and-task-breakdown"><img src="https://agentmods.dev/badge/skills/aneja5/forge-skills/planning-and-task-breakdown.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 58 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,196 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 $0.00058 $0.02196
Opus 5 $0.00029 $0.01098
Sonnet 5 $0.00012 $0.00439
Haiku 4.5 $0.00006 $0.00220

Measured 6d ago against content hash 724a80ab3d1e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

planning-and-task-breakdown 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.

skills/planning-and-task-breakdown/SKILL.md · 177 lines

How it starts

The opening of the file, as written. The whole thing — 177 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Planning and Task Breakdown

Overview

Read .forge/prd.md, .forge/architecture.md, and .forge/contracts/ to produce .forge/tasks.yaml — a sized, dependency-ordered list of tasks where each task is a thin vertical slice through all layers. Output feeds incremental-implementation.

When to Use

  • .forge/prd.md and .forge/architecture.md both exist
  • Ready to break work into implementable tasks before coding starts
  • Need to identify dependencies and parallelize work

When NOT to Use

  • Architecture doesn't exist yet — run architecture-and-contracts first
  • PRD is not complete — gaps produce tasks with unknown scope
  • Single-module change with no integration — implement directly with tdd

Common Rationalizations

Thought Reality
"I can keep the task list in my head" Tasks in your head have no acceptance criteria
"We'll figure out dependencies as we go" Undiscovered dependencies stall work mid-implementation
"All tasks are the same size" They never are — sizing forces honest scope assessment
"Vertical slicing is overkill here" Horizontal slicing (all API, then all UI) delays feedback until integration
"Tasks can reference file paths" File paths rot — describe behaviors and module names

Red Flags

  • Tasks that touch more than 3 modules (not a vertical slice — split it)
  • No acceptance criteria per task (untestable)
  • No dependency graph (implementation order unknown)
  • Task descriptions name files/functions instead of behaviors
  • XL tasks with no breakdown path (too much unknown — spike first)
  • All tasks marked "no dependencies" (integration is being deferred)

Core Process

Step 1: Read the artifacts

Read .forge/prd.md for requirements. Read .forge/architecture.md for components. Read all files in .forge/contracts/ for module interfaces.

Step 2: Identify vertical slices

Each task must be a tracer bullet: a thin but complete path through ALL layers. Not "implement the API" — that's horizontal. Instead: "user can submit a form and see a success message" — that's a vertical slice cutting through UI, API, and storage.

Read the full file on GitHub · 177 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. 6d ago First seen · 177 lines · 58 tokens per session scan A 724a80ab3d1e

Subscribe to this mod's changes

planning-and-task-breakdown is a skill published in the GitHub repository aneja5/forge-skills (3 stars, last pushed 3mo ago), licensed MIT. It adds 58 tokens to every session and 2,196 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 2026-09-03.