prd-writer

prd-writer is a skill for Claude Code from aakashg/pm-claude-code-setup. It costs 0 tokens per session (2,918 once invoked), scanned A, original, MIT.

A process for writing a short product requirements document, or PRD, that explains the problem, goals, and intended product behavior. A PRD helps a team discuss and agree on what to build.

In plain words
What is it for?
Use it to draft or refine a PRD, product one-pager, or feature specification by defining the audience, evidence, scope, goals, and expected behavior.
Why use it?
It prevents long, vague specifications that are difficult to read or use for decisions. Clarifying key gaps first makes the document more relevant to the people and problem involved.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

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/aakashg/pm-claude-code-setup/prd-writer
Any agent
npx skills add aakashg/pm-claude-code-setup --skill prd-writer
Clone the repo
git clone --depth 1 https://github.com/aakashg/pm-claude-code-setup

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 prd-writer

README.md
[![agentmods](https://agentmods.dev/badge/skills/aakashg/pm-claude-code-setup/prd-writer.svg)](https://agentmods.dev/skills/aakashg/pm-claude-code-setup/prd-writer)
Your own site
<a href="https://agentmods.dev/skills/aakashg/pm-claude-code-setup/prd-writer"><img src="https://agentmods.dev/badge/skills/aakashg/pm-claude-code-setup/prd-writer.svg" alt="Measured on agentmods" height="20"></a>
Per session 0 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,918 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 5.1 $0.00000 $0.02918
Opus 5 $0.00000 $0.01459
Sonnet 5 $0.00000 $0.00584
Haiku 4.5 $0.00000 $0.00292

Measured 6d ago against content hash da055e0f1fac, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

prd-writer 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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

  • prd — 92% identical, 7 lines differ
.claude/skills/prd-writer/SKILL.md · 261 lines

How it starts

The opening of the file, as written. The whole thing — 261 lines — stays where its author put it; the contents beside it link to each section on GitHub.

PRD Writer

Trigger

Activate on "write a PRD", "create a PRD", "draft a PRD", "PRD for [feature]", "spec out [feature]", or "one pager for [feature]".

Context

The PRD isn't dead. The bad PRD is dead. AI killed the 10-page PRD — no one read those. The modern PRD is lighter, sharper, and example-heavy.

Core philosophy:

  • Think crisp, not complete. Teammates hate AI-generated bloat and crave human-written clarity. 2-3 pages max.
  • PRDs are for alignment, not dictation. They drive discussion and decisions. They're what you discuss, debate, refer to, and sync on.
  • A PRD engineers actually want to read nails the "why" and the "what," not the "how."
  • You don't write a PRD once. You write it over time. The PRD is a living document reflecting the team's current thinking at each stage.

Behavior

Step 1: Clarify Before Writing

Before generating anything, ask 3-5 clarifying questions. Tailor to what's missing. Common gaps:

  • Who specifically has this problem? (Not "users" — which users? Job title, company size, situation)
  • What data do we have that this is worth solving? (Usage data, support tickets, revenue impact, customer quotes)
  • What's the scope? (MVP vs full vision — and what stage is this PRD at?)
  • Are there technical constraints the engineering team has flagged?
  • What's the timeline and why?

Do NOT proceed until the user answers. A PRD without clear answers to these is vague and useless.

If the user is early-stage or exploring, generate a "speclet" (Stage 1) — just enough for the team to explore further. Never force a full PRD on an idea that needs discovery first.

Step 2: Determine the PRD Stage

The PRD evolves through stages. Ask or infer which stage the user is at:

Stage What It Is What the PRD Looks Like
1. Team Kickoff Exploring the problem with design + eng A "speclet" — title, problem hypothesis, 2-3 open questions. Maybe just a paragraph.
2. Planning Review Presenting to leadership for prioritization A 1-pager: problem, strategic fit, initial data, potential approach. Audience: VP, CEO.
3. XFN Kickoff Bringing in sales, support, marketing, legal, QA Expanded doc with cross-functional input needed. Compelling problem + initial solution direction.
4. Solution Review Staking a position on the solution Full PRD with solution details, flows, edge cases. May be presented to senior leadership.
5. Launch Readiness Engineering handoff Concrete specs: edge cases, metrics, user flows. Engineers comment heavily on this version.
6. Impact Review Post-launch learning Add results link at top. What worked, what didn't, rollback notes. Closes the build-test-learn loop.

Read the full file on GitHub · 261 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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 · 261 lines · 0 tokens per session scan A da055e0f1fac

Subscribe to this mod's changes

prd-writer is a skill published in the GitHub repository aakashg/pm-claude-code-setup (152 stars, last pushed 6mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 2,918 tokens. 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.