prd

prd is a skill for Claude Code, Codex from mshadmanrahman/pm-pilot. It costs 73 tokens per session (1,782 once invoked), scanned A, original, MIT.

A tool for writing product requirements documents, which describe what a product or feature should do and why. It can produce a short one-page summary, a fuller brief, a detailed PRD, or an RFC for a technical decision.

In plain words
What is it for?
Use it to write one-pagers, product briefs, full requirements documents, feature specifications, and technical RFCs.
Why use it?
It helps turn an early idea or decision into a written plan with the right amount of detail. This gives design, product, and engineering teams a shared understanding of the work.

Skill for Claude CodeCodex

Part of the pm-core plugin — 14 skills, 2 agents shipped together

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/mshadmanrahman/pm-pilot/prd
Any agent
npx skills add mshadmanrahman/pm-pilot --skill prd
Clone the repo
git clone --depth 1 https://github.com/mshadmanrahman/pm-pilot

Made for: Claude Code, Codex.

Or install pm-core, the plugin that ships this one along with the rest of its 14 skills, 2 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 prd

README.md
[![agentmods](https://agentmods.dev/badge/skills/mshadmanrahman/pm-pilot/prd.svg)](https://agentmods.dev/skills/mshadmanrahman/pm-pilot/prd)
Your own site
<a href="https://agentmods.dev/skills/mshadmanrahman/pm-pilot/prd"><img src="https://agentmods.dev/badge/skills/mshadmanrahman/pm-pilot/prd.svg" alt="Measured on agentmods" height="20"></a>
Per session 73 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,782 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 $0.00073 $0.01782
Opus 5 $0.00036 $0.00891
Sonnet 5 $0.00015 $0.00356
Haiku 4.5 $0.00007 $0.00178

Measured 5d ago against content hash 948bd4ad2cc6, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

prd 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 5d 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/pm-core/skills/prd/SKILL.md · 268 lines

How it starts

The opening of the file, as written. The whole thing — 268 lines — stays where its author put it; the contents beside it link to each section on GitHub.

PRD: Product Requirements Document

Generate product specs at the right depth for the decision stage. From a quick one-pager to a full PRD to a technical RFC.

When to Activate

  • User says "write a PRD", "product spec", "one-pager for X", "RFC for X"
  • User asks for requirements, a spec, or a brief for a feature
  • User says "spec this out" or "document the requirements"

Depth Modes

Auto-detect from user phrasing. If ambiguous, ask.

Mode When Length Contains
One-pager Early exploration, exec alignment 1 page Problem, hypothesis, success criteria, key risks
Brief Ready to start design/discovery 2-3 pages Above + user stories, scope (in/out), dependencies
Full PRD Ready to build 4-8 pages Above + detailed requirements, edge cases, metrics, rollout plan, open questions
RFC Technical decision needed 2-5 pages Context, proposal, alternatives considered, tradeoffs, migration plan

Detection heuristics

  • "quick spec", "one-pager", "executive summary" → One-pager
  • "brief", "enough to start building", "design brief" → Brief
  • "PRD", "full spec", "detailed requirements" → Full PRD
  • "RFC", "tech spec", "architecture decision", "should we migrate" → RFC

Process

Step 1: Gather Context

Before writing, check for existing context:

  1. Check for market-research output: If competitive analysis exists for this domain, reference it
  2. Check memory: Look for project context, stakeholder preferences, prior decisions
  3. Ask the user (if context is thin):
    • What problem does this solve?
    • Who is it for?
    • What does success look like?
    • What constraints exist (timeline, team, tech)?

Do not block on missing context. Use what exists, flag what is assumed.

Step 2: Draft

Write the document at the detected depth level, following the templates below.

Tag uncertain claims:

  • [Assumption] for things you inferred but the user didn't confirm
  • [Needs data] for metrics or claims that need validation
  • [Open question] for decisions that need stakeholder input

Read the full file on GitHub · 268 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. 5d ago First seen · 268 lines · 73 tokens per session scan A 948bd4ad2cc6

Subscribe to this mod's changes

prd is a skill published in the GitHub repository mshadmanrahman/pm-pilot (19 stars, last pushed today), licensed MIT. It adds 73 tokens to every session and 1,782 once invoked, about $0.0004 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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