dev-planner

A command for turning a completed Product-Spec.md into a phased DEV-PLAN.md. A product specification describes what should be built; a development plan breaks that work into stages.

In plain words
What is it for?
Use it to generate a new development plan or revise an existing one after product requirements change.
Why use it?
It makes dependencies and implementation order explicit, and can update the plan when the specification changes without rewriting completed phases.

Command for Claude Code

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 commands/zxpmail/reqforge/dev-planner
Clone the repo
git clone --depth 1 https://github.com/zxpmail/ReqForge

Made for: Claude Code.

Per session 16 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 127 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 $0.00016 $0.00127
Opus 5 $0.00008 $0.00063
Sonnet 5 $0.00003 $0.00025
Haiku 4.5 $0.00002 $0.00013

Measured yesterday against content hash 5d46b2a44201, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

dev-planner 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 yesterday.

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.

adapters/claude-code/.claude/skills/dev-planner/commands/dev-planner.md · 14 lines

What it actually says

Command: /dev-planner

Entry: /dev-planner or [scope: iteration]. 必须先 Read references/workflow.md 对应模式章节。

Mode SKILL.md Output
Generation Main workflow DEV-PLAN.md
Iteration [Workflow (Iteration Mode)] Updated plan; changes/.../tasks.md only via change-manager apply
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. yesterday First seen · 14 lines · 16 tokens per session scan A 5d46b2a44201

Subscribe to this mod's changes

dev-planner is a command published in the GitHub repository zxpmail/ReqForge (18 stars, last pushed 11d ago), licensed MIT. It adds 16 tokens to every session and 127 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.