prp-prd

prp-prd is a skill for Claude Code, Codex from Wirasm/prp. It costs 49 tokens per session (3,499 once invoked), scanned A, original, MIT.

An interactive generator for a product requirements document, which describes a product or feature and the evidence needed before building it. It starts with the problem, tests assumptions, and marks missing information for research.

In plain words
What is it for?
Use it to create product or feature specifications, define problems and hypotheses, and identify research still needed.
Why use it?
It helps prevent teams from writing detailed plans based on unverified assumptions. Its questions guide the user toward a clearer, evidence-based product scope.

Skill for Claude CodeCodex

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/wirasm/prp/prp-prd
Any agent
npx skills add Wirasm/prp --skill prp-prd
Clone the repo
git clone --depth 1 https://github.com/Wirasm/prp

Made for: Claude Code, Codex.

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 prp-prd

README.md
[![agentmods](https://agentmods.dev/badge/skills/wirasm/prp/prp-prd.svg)](https://agentmods.dev/skills/wirasm/prp/prp-prd)
Your own site
<a href="https://agentmods.dev/skills/wirasm/prp/prp-prd"><img src="https://agentmods.dev/badge/skills/wirasm/prp/prp-prd.svg" alt="Measured on agentmods" height="20"></a>
Per session 49 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,499 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 $0.00049 $0.03499
Opus 5 $0.00024 $0.01750
Sonnet 5 $0.00010 $0.00700
Haiku 4.5 $0.00005 $0.00350

Measured 4d ago against content hash 7a5f6a267635, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

prp-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 4d 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.

.agents/skills/prp-prd/SKILL.md · 487 lines

How it starts

The opening of the file, as written. The whole thing — 487 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Arguments: $ARGUMENTS (and $1, $2, ...) refer to the arguments given when this skill was invoked. Take them from the user's request; if absent, infer them from the conversation.

Product Requirements Document Generator

Input: $ARGUMENTS


Your Role

You are a sharp product manager who:

  • Starts with PROBLEMS, not solutions
  • Demands evidence before building
  • Thinks in hypotheses, not specs
  • Asks clarifying questions before assuming
  • Acknowledges uncertainty honestly

Anti-pattern: Don't fill sections with fluff. If info is missing, write "TBD - needs research" rather than inventing plausible-sounding requirements.


Process Overview

QUESTION SET 1 → GROUNDING → QUESTION SET 2 → RESEARCH → QUESTION SET 3 → GENERATE

Each question set builds on previous answers. Grounding phases validate assumptions.


Phase 1: INITIATE - Core Problem

If no input provided, ask:

What do you want to build? Describe the product, feature, or capability in a few sentences.

If input provided, confirm understanding by restating:

I understand you want to build: {restated understanding} Is this correct, or should I adjust my understanding?

GATE: Wait for user response before proceeding.


Phase 2: FOUNDATION - Problem Discovery

Ask these questions (present all at once, user can answer together):

Foundation Questions:

  1. Who has this problem? Be specific - not just "users" but what type of person/role?

  2. What problem are they facing? Describe the observable pain, not the assumed need.

  3. Why can't they solve it today? What alternatives exist and why do they fail?

  4. Why now? What changed that makes this worth building?

  5. How will you know if you solved it? What would success look like?

GATE: Wait for user responses before proceeding.


Phase 3: GROUNDING - Market & Context Research

After foundation answers, conduct research using specialized agents:

Read the full file on GitHub · 487 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. 4d ago First seen · 487 lines · 49 tokens per session scan A 7a5f6a267635

Subscribe to this mod's changes

prp-prd is a skill published in the GitHub repository Wirasm/prp (2,240 stars, last pushed 6d ago), licensed MIT. It adds 49 tokens to every session and 3,499 once invoked, about $0.0002 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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