prd

A collaborative product-requirements helper that writes a PRD, or product requirements document. A PRD describes what a product or feature should do and who it is for.

In plain words
What is it for?
Use it to discuss a product idea and produce a structured requirements document, optionally using existing brainstorming notes.
Why use it?
It helps turn an informal idea into a written set of requirements that can guide development.

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/pillip/claude-dev-kit/prd
Any agent
npx skills add pillip/claude-dev-kit --skill prd
Clone the repo
git clone --depth 1 https://github.com/pillip/claude-dev-kit

Made for: Claude Code, Codex.

Per session 13 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,133 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 $0.00013 $0.01133
Opus 5 $0.00006 $0.00566
Sonnet 5 $0.00003 $0.00227
Haiku 4.5 $0.00001 $0.00113

Measured 2d ago against content hash 804bad554718, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, 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 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.

skills/prd/SKILL.md · 85 lines

How it starts

The opening of the file, as written. The whole thing — 85 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Kit Preamble — prd

Kit Script Root

Kit root: ${CLAUDE_PLUGIN_ROOT}

  • Absolute path above → plugin install (substituted at load time; no project scripts/ dir): prefix every kit script command with it, e.g. bash <kit-root>/scripts/checkpoint.sh …. Absolute paths also work from worktrees.
  • Literal ${…} placeholder above → standalone layout: run commands as written.

Project Context Detection

Run these checks silently at the start. Use results to adapt behavior:

  • [ -f issues.md ] — if true, this project uses the sprint system. Respect issue numbering and STATUS.md.
  • [ -f docs/sprint_state.md ] — if true and Status shows running, a sprint is active. Be aware of parallel work in worktrees.
  • [ -f docs/prd_digest.md ] — if true, read it for quick project context before starting.

Kit Rules

  • Verify gh auth status before any GitHub operation. Steps:
  1. Determine the output path ($ARGUMENTS or PRD.md).
  2. Check if the file already exists at that path.
  3. Read docs/example_prd.md to load the reference PRD format. 3.5) Check if docs/brainstorm_notes.md exists. If it does, read it and use as additional context — problem space, target users, chosen direction. Pre-fill answers to questions already covered in the brainstorm notes. 3.6) Check if docs/business_analysis.md exists. If it does, read it and use as additional context — market analysis, competitive landscape, business model direction, risks.

If the file does NOT exist (New PRD):

4a) Ask the user to freely describe their product idea. 5a) Analyze the input and identify missing PRD sections (Background, Goals, Target User, User Stories, Functional Requirements, Non-functional Requirements, Out of Scope, Success Metrics, Technical Notes). 6a) Ask clarifying questions conversationally — one or two gaps at a time. 7a) When enough information is gathered, generate a PRD draft following the example format and present it to the user.

Read the full file on GitHub · 85 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. 2d ago First seen · 85 lines · 13 tokens per session scan A 804bad554718

Subscribe to this mod's changes

prd is a skill published in the GitHub repository pillip/claude-dev-kit (11 stars, last pushed 16d ago), licensed MIT. It adds 13 tokens to every session and 1,133 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.

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