dev-plan

dev-plan is a skill for Claude Code from rootwarp/claude-code-plugins-monorepo. It costs 48 tokens per session (1,811 once invoked), scanned A, original, MIT.

A planning workflow that turns a software idea into a step-by-step development plan. It coordinates specialists who clarify requirements, research options, design the system, plan phases, and estimate small work items.

In plain words
What is it for?
Use it to create product requirements, technical research, an architecture, project phases, and development issues that are small enough to schedule and implement.
Why use it?
It gives a vague project idea a clearer structure before coding starts. Reviewing each stage helps catch missing requirements, technical risks, dependencies, and unrealistic tasks early.

Skill for Claude Code

Written for Claude Code: disable-model-invocation in frontmatter.

Part of the dev-team plugin — 2 skills, 9 agents shipped together

Good fit Use it to create product requirements, technical research, an architecture, project phases, and development issues that are small enough to schedule and implement.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/rootwarp/claude-code-plugins-monorepo/dev-plan
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 rootwarp/claude-code-plugins-monorepo --skill dev-plan
Clone the repo
git clone --depth 1 https://github.com/rootwarp/claude-code-plugins-monorepo

Made for: Claude Code.

Or install dev-team, the plugin that ships this one along with the rest of its 2 skills, 9 agents.

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 dev-plan

README.md
[![agentmods](https://agentmods.dev/badge/skills/rootwarp/claude-code-plugins-monorepo/dev-plan/github.svg)](https://agentmods.dev/skills/rootwarp/claude-code-plugins-monorepo/dev-plan)
Your own site
<a href="https://agentmods.dev/skills/rootwarp/claude-code-plugins-monorepo/dev-plan"><img src="https://agentmods.dev/badge/skills/rootwarp/claude-code-plugins-monorepo/dev-plan/github.svg" alt="Measured on agentmods" height="20"></a>

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.

agentmods 80×15 button for dev-plan

Your own site · 80×15
<a href="https://agentmods.dev/skills/rootwarp/claude-code-plugins-monorepo/dev-plan"><img src="https://agentmods.dev/badge/skills/rootwarp/claude-code-plugins-monorepo/dev-plan.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 48 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,811 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 $0.00048 $0.01811
Opus 5.5 $0.00019 $0.00724
Sonnet 5.5 $0.00010 $0.00362
Haiku 4.5 $0.00005 $0.00181

Measured 1mo ago against content hash 5b986f6d31f7, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

dev-plan 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 1mo 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/dev-team/skills/dev-plan/SKILL.md · 146 lines

How it starts

The opening of the file, as written. The whole thing — 146 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Development Planning Pipeline

You are the team lead orchestrating a full development planning workflow. Your job is to coordinate five specialist agents in sequence to transform a project idea into a complete, actionable development plan.

Team Members

Agent Role Responsibility
prd-writer Product Manager Gather requirements, ask clarifying questions, write the PRD
researcher Research Analyst Investigate technologies, landscape, feasibility, and best practices
software-architect Architect Design modular, microservice-aware system architecture
project-planner Project Manager Plan phases, milestones, and dependencies
issue-estimator Engineering Lead Break down into 1-2 day sprint-ready issues

Workflow

Execute the following pipeline. Each stage produces artifacts that feed into the next. Do not skip stages. Ask the user for approval at each gate before moving to the next stage.

Stage 1: Kickoff

  1. Read the user's input: $ARGUMENTS
  2. If the description is too vague to start, ask the user clarifying questions about:
    • What problem they're solving
    • Who the target users are
    • Any known constraints (tech stack, timeline, team size)
  3. Determine the initial scope and constraints for the PRD
  4. Create a team using TeamCreate named dev-plan

Stage 2: PRD

  1. Create tasks for the prd-writer agent using TaskCreate:
    • Gather requirements from the user via clarifying questions
    • Define the problem, target users, and success metrics
    • Write the PRD with prioritized requirements (P0/P1/P2)
  2. Spawn the prd-writer agent via Task tool with team_name: "dev-plan" and subagent_type: "dev-team:prd-writer"
    • Assign the prd-writer its tasks via TaskUpdate
    • The prd-writer should write the PRD to plan/prd.md (or ask user for preferred location)
  3. Gate: PRD Review — When complete, present the PRD summary to the user and ask:
    • "Does this PRD capture your requirements? Any changes needed?"
    • If changes needed, send revision tasks to prd-writer
    • If approved, proceed to Stage 3

Read the full file on GitHub · 146 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. 1mo ago First seen · 146 lines · 48 tokens per session scan A 5b986f6d31f7

Subscribe to this mod's changes

dev-plan is a skill published in the GitHub repository rootwarp/claude-code-plugins-monorepo (2 stars, last pushed 6mo ago), licensed MIT. It adds 48 tokens to every session and 1,811 once invoked, about $0.0002 per session on Opus 5.5. 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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