project-brief
Skill2 starsChanged 3 months agoMITView on GitHub
Use when the user wants a formal project requirements document (PRD) written for an app, feature, or product idea. Use when they say "write a PRD", "create a project brief", "document my idea", or "let's write up the requirements" — including as the final step after an idea-interrogator and/or visual-identity session.
10 other projects use a version of this.
Adopted by
Most recently taken up by
- Git-FED/MuseAi-Skills-Guidetheir own version, first seen Nov 8, 2026
- Rome-1/obsidian-claude-startertheir own version, first seen Nov 1, 2026
- DoKu67/claude-code-skilstheir own version, first seen Oct 16, 2026
- anhvu3594/claude-skillstheir own version, first seen Oct 15, 2026
- hmj1026/dhpktheir own version, first seen Oct 13, 2026
- sd0xdev/sd0x-dev-flowtheir own version, first seen Oct 8, 2026
Other versions10 projects use a version of this.
Word for word · 0
None found.
Edited · 0
None found.
Wrote their own version · 10
- sd0xdev/sd0x-dev-flow★ 192same name
- sd0xdev/sd0x-harness★ 192same name
- Git-FED/MuseAi-Skills-Guide★ 121same name
- zrosenfield/sharepoint-ai-skills★ 96same name
- flurdy/agent-skills★ 9same name
- MarcoZorn/agencykit★ 6same name
- Rome-1/obsidian-claude-starter★ 5same name
- DoKu67/claude-code-skils★ 4same name
- hmj1026/dhpk★ 2same name
- anhvu3594/claude-skills★ 0same name
How matches are found. Word for word: the exact same text. Edited: shares passages with this file (“99% same” means 99% of its five-word phrases also appear here; 10% or more counts). Their own version: similar meaning, or, weakest, the same name. We can’t tell which project had it first. Projects are counted among the 200 most-starred candidates, and mentions are links to the repository we found, up to 50 per site, so both counts are a floor.
In this repository2 other files it gives its agents.
- idea-interrogatorSkill
- visual-identitySkill
The file
We split this skill into the rules it gives an agent
4 rules. 0 are common, 2 are distinctive, and 2 are very specific to this project.
0
Common
Most of the 10 edited versions we read keep these.
2
Distinctive
This author's own choices. Worth a look.
2
Very specific
Tied to their project's names, files or tools. Probably skip.
- Common
- Distinctive
- Very specific
- Very specific: line 17
Check the current working directory for idea-interrogator-verdict.md and visual-identity.md.
- Distinctive: line 27
Ask about anything the PRD still needs that neither file covers: target users, success metrics, explicit out-of-scope items.
- Very specific: line 38
Write <project-name>-brief.md to the current working directory:
- Distinctive: line 73
Keep tone practical — no marketing language, no filler adjectives.
“Common” is measured: kept by at least 6 in 10 of the 10 edited versions of this file we could read. “Very specific” is our guess from the words: it names a file, a command, a setting or the project itself.
Files
Project Brief
Overview
Produces a PRD-style document. Standalone-capable: reuses
idea-interrogator-verdict.md and visual-identity.md from the current
working directory when present instead of re-asking that ground, and asks
the relevant questions directly when either file is missing. Never requires
either file to run.
Process
- Check the current working directory for
idea-interrogator-verdict.mdandvisual-identity.md. - For whichever file IS present, read it and reuse its content instead of asking the user to repeat themselves.
- For whichever file is MISSING, ask the user directly:
- No
idea-interrogator-verdict.md: ask about scope, doability, time estimate, purpose, and MVP features before drafting the Validation Summary section. - No
visual-identity.md: ask about fonts, colors, theme, and desired feeling before drafting the Design Direction section.
- No
- Ask about anything the PRD still needs that neither file covers: target users, success metrics, explicit out-of-scope items.
- Draft the full document (structure below) and confirm it with the user before treating it as final.
The Validation Summary and Design Direction sections below are REQUIRED in every output document — never drop them, and never fold their content into other sections instead. If a source file is missing, fill the section from direct questions rather than omitting it.
Deliverable
Write <project-name>-brief.md to the current working directory:
# Project Brief: <project name>
## Overview
<what this is, in 2-4 sentences>
## Validation Summary
<pulled from idea-interrogator-verdict.md if present: verdict, key risk,
scope/time caveats — otherwise drafted from direct questions>
## Goals
- ...
## Target Users
- ...
## Design Direction
<pulled from visual-identity.md if present: condensed narrative + key tokens
(fonts, primary colors, theme) — otherwise drafted from direct questions>
## Features
### MVP
- ...
### Later / Explicitly Deferred
- ...
## Success Metrics
- ...
## Out of Scope
- ...Keep tone practical — no marketing language, no filler adjectives.
Common Mistakes
- Re-asking questions already answered in
idea-interrogator-verdict.mdorvisual-identity.md— check for and read those files first. - Dropping the Validation Summary or Design Direction sections, or folding their content into other sections instead of keeping them as their own labeled headers — both are required sections in every output document.
- Ignoring
visual-identity.mdeven when present in cwd — every color/font/ token detail it contains belongs in the Design Direction section. - Treating a NO-GO verdict from
idea-interrogator-verdict.mdas a reason to refuse writing the brief — it's context for the Validation Summary, not a gate.
Does it work?
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Using an agent? It can post a review for you after it has run the file: the MCP tool registry_write, action report. How to connect one.
Your trail
Files you open will collect here, so you can find them again.
Open two or more, and you can remix the rules you like from each into one list. Kept in this browser only.
Now do this for your own.
Bring your CLAUDE.md, AGENTS.md or skills. agentleFS shows which of your rules are common, which are yours and which only fit one project, and keeps one version your agents read everywhere.

