write-a-prd

write-a-prd is a skill for Claude Code from qhuang20/shazam. It costs 51 tokens per session (641 once invoked), scanned A, original, no licence file.

A skill for creating a product requirements document, or PRD: a written description of what a product feature should do.

In plain words
What is it for?
It helps write a PRD and submit it as a GitHub issue, a tracked task or discussion in a code project.
Why use it?
It structures feature planning through an interview, codebase exploration, and module design before recording the result.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the shazam plugin — 18 skills shipped together

Good fit It helps write a PRD and submit it as a GitHub issue, a tracked task or discussion in a code project.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/qhuang20/shazam/write-a-prd
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.

Any agent
npx skills add qhuang20/shazam --skill write-a-prd
Clone the repo
git clone --depth 1 https://github.com/qhuang20/shazam

Made for: Claude Code.

Or install shazam, the plugin that ships this one along with the rest of its 18 skills.

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 write-a-prd

README.md
[![agentmods](https://agentmods.dev/badge/skills/qhuang20/shazam/write-a-prd/github.svg)](https://agentmods.dev/skills/qhuang20/shazam/write-a-prd)
Your own site
<a href="https://agentmods.dev/skills/qhuang20/shazam/write-a-prd"><img src="https://agentmods.dev/badge/skills/qhuang20/shazam/write-a-prd/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for write-a-prd

Your own site · 80×15
<a href="https://agentmods.dev/skills/qhuang20/shazam/write-a-prd"><img src="https://agentmods.dev/badge/skills/qhuang20/shazam/write-a-prd.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 51 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 641 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown 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 $0.00051 $0.00641
Opus 5 $0.00026 $0.00320
Sonnet 5 $0.00010 $0.00128
Haiku 4.5 $0.00005 $0.00064

Measured 9d ago against content hash fc9f19303725, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

write-a-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 9d 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/write-a-prd/SKILL.md · 79 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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. 9d ago First seen · 79 lines · 51 tokens per session scan A fc9f19303725

Subscribe to this mod's changes

write-a-prd is a skill published in the GitHub repository qhuang20/shazam (4 stars, last pushed 5mo ago), with no licence file. It adds 51 tokens to every session and 641 once invoked, about $0.0003 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 2026-08-31.

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