prd-writing SKILL.md skillA

prd-writing from higoralves/orc is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned

mdr add higoralves/orc/prd-writing@git:20261020.7a1f356

Pins git:20261020.7a1f356 in mdr.lock. Pin the fingerprint instead.

Audit grade: A, 17 of 17 checks passed
Kind: SKILL.md skill
Repository: higoralves/orc
Path: orc/skills/prd-writing/SKILL.md
Versions recorded: 3
Latest version: git:20261020.7a1f356, committed Oct 20, 2026
First version recorded: May 4, 2026
Size: 5,400 bytes
Repository stars: 7
License: MIT

Author Product Requirements Documents (PRDs) from scratch — interview-driven, templated, published to docs/prds/NNNN-*.md.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# PRD Writing

> **Defer to `orc:doc-writing`** for the shared scaffolding: the doc-type map (PRD vs TRD vs RFC vs ADR vs postmortem, and how PRD differs from `orc:to-prd`), the shared section outline, the `docs/<type>s/NNNN-*.md` numbering & publication convention, and the review gates. This skill carries only the PRD-specific template, fields, and tone.

A PRD is the contract between product intent and engineering execution. It captures **what we're building, for whom, and why now** — *before* anyone argues about architecture. A good PRD makes the design conversation that follows it 10× faster because half the questions are pre-answered.

## When to write one

Write a PRD when **all** of these are true:

- The work has a **user-facing outcome** — a behavior, capability, or experience changes for someone outside the team.
- The intent is **non-obvious** — there's a real product question (which audience, which metric, which scope), not just an implementation question.
- The work is **non-trivial** — multi-day effort, or coordination across product/design/engineering.

Don't write a PRD for:
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint

mdr add higoralves/orc/prd-writing@sha256:db1087967f658796

The line at the top of this page pins the label git:20261020.7a1f356, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

[![mdr](https://markdownregistry.com/badge/art_pl6b7xb4nk5ntcq5.svg)](https://markdownregistry.com/a/art_pl6b7xb4nk5ntcq5)

2 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 3 versions of this file, between May 4, 2026 and Oct 20, 2026, about one every 85 days.

version	committed	commit	size	audit
git:20261020.7a1f356 latest	2026-10-20	7a1f356	5,400 B	A	view · diff
git:20260624.531616f	2026-06-24	531616f	7,674 B	A	view · diff
git:20260504.d9ce952	2026-05-04	d9ce952	9,396 B	A	view

Audit of the latest version

A 17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.

pass: Frontmatter block present
pass: Frontmatter declares a name
pass: Frontmatter declares a description
pass: Size between 200 bytes and 200 KB (5400 bytes)
pass: No zero-width or bidi control characters
pass: No instruction hidden inside an HTML comment
pass: No link to an exfiltration or paste host
pass: No credential-shaped string
pass: No instruction to send local credentials anywhere
pass: No text hidden with inline styles
pass: No prompt-injection phrasing
pass: No curl or wget piped into a shell
pass: No recursive delete of root, home or parent
pass: No instruction to read or print local credentials
pass: No base64 blob over 200 characters
pass: No link to a raw IP address
pass: No script tag

Source

GitHub

higoralves/orc · 7 stars · license MIT · pushed 2026-11-06 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_pl6b7xb4nk5ntcq5
GET https://markdownregistry.com/api/v1/resolve?ref=higoralves/orc/prd-writing
GET https://markdownregistry.com/api/v1/blob/db1087967f6587964b9436dd47f9029392e88cd8006ae12124ac57ba368b306a

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.