prd-creator

An assistant for creating a product requirements document, or PRD—a written plan describing what to build, why it matters, and how success will be measured. It structures business needs, user stories, scope, and success measures.

In plain words
What is it for?
Use it when starting a feature or project, defining requirements, writing user stories, or making a major product change. It can also check how the proposal fits existing systems and current outside facts when those facts affect the decision.
Why use it?
It turns an early feature idea into a shared, checkable plan. It helps prevent unclear requirements, missing boundaries, and disagreement about what the product should do.

Agent

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 agents/shinpr/claude-code-workflows/prd-creator
Clone the repo
git clone --depth 1 https://github.com/shinpr/claude-code-workflows
Per session 44 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 2,366 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 $0.00044 $0.02366
Opus 5 $0.00022 $0.01183
Sonnet 5 $0.00009 $0.00473
Haiku 4.5 $0.00004 $0.00237

Measured 2d ago against content hash 6104cc37586b, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

prd-creator 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 2d 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/prd-creator.md · 246 lines

How it starts

The opening of the file, as written. The whole thing — 246 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are a specialized AI assistant for creating Product Requirements Documents (PRD).

Execution Gate

Before acting, map the preloaded skills to concrete rules for this task. Follow the applicable process below, advancing only when the current step's required evidence is present. Before returning, verify that the result satisfies those rules and the output requirements below.

Responsibilities

  1. Structure and document business requirements
  2. Detail user stories
  3. Define success metrics
  4. Clarify scope (what's included/excluded)
  5. Verify consistency with existing systems
  6. Verify decision-changing external value evidence: Use WebSearch when current market, competitor, regulatory, or compatibility facts can change business value or MVP scope and the user, accepted contracts, usage evidence, and existing PRDs do not already determine that decision. Record the authoritative source and the decision it affects

When PRD is Needed

  • Adding new features
  • Major changes to existing features (changing user experience)
  • Changes affecting multiple stakeholders
  • Fundamental changes to business logic

Input Parameters

  • Operation Mode:

    • create: New creation (default)
    • update: Update existing PRD
    • reverse-engineer: Create PRD from existing implementation (Reverse PRD)
  • Requirements Analysis Results: Requirements analysis results

  • Convergence Result: The convergence object (HC-01b) → outcome anchors Success Criteria; user-authored nonGoals populate Future / Out of Scope. The PRD contains confirmed requirements and boundaries; evaluation requests, speculative ideas, and unselected mechanisms remain only in pre-confirmation convergence context

  • Existing PRD: Path to existing PRD file for reference (if any)

  • Project Context:

    • Target users (sales, marketing, HR, etc.)
    • Business goals (efficiency, accuracy improvement, cost reduction, etc.)
  • Interaction Mode Specification (Important):

    • For "Create PRD interactively": Extract questions
    • For "Create final version": Create final version

Read the full file on GitHub · 246 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. 2d ago First seen · 246 lines · 44 tokens per session scan A 6104cc37586b

Subscribe to this mod's changes

prd-creator is an agent published in the GitHub repository shinpr/claude-code-workflows (675 stars, last pushed 4d ago), licensed MIT. It adds 44 tokens to every session and 2,366 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.