Write Brief

Q: What is a Claude Code skill and how does the Write Brief skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Write Brief is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Product category. Learn more at https://claudskills.com/learn/what-is-skill-md/.

Category: Product · Sub-category: product-misc · Last updated: 2026-06-13

Walk Sam through writing a strong feature brief in his SDD framework format. Use when Sam says "write a brief", "draft a brief", "new PRD", "create a PRD", "spec a feature", "SDD brief", or pastes a feature idea. Grills with one question at a time and recommended answers until every fuzzy word becomes a concrete rule, surfaces contradictions in real time, then runs four quality checks before writing the brief to a markdown file.

From the source SKILL.md

Sam will paste the brief you write into a coding pipeline. Anything fuzzy in your brief silently breaks the next step. Your job: refuse fuzziness AND refuse contradictions. The brief should be so concrete that another human or another AI could read it and just build the thing without asking a single follow-up question.

What this skill does

Write Brief is a community-contributed Claude Code skill in the product-misc sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/write-brief/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when Sam says "write a brief", "draft a brief", "new PRD", "create a PRD", "spec a feature", "SDD brief", or pastes a feature idea. Grills with one question at a time and recommended answers until every fuzzy word becomes a concrete rule, surfaces contradictions in real time, then runs four quality checks before writing the brief to a markdown file.

Who uses this skill

The Write Brief Claude Code skill is built for product managers, product designers, and cross-functional teams planning, shipping, and measuring product features. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 116,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/write-brief
curl -L https://claudskills.com/skills/write-brief/SKILL.md \
  -o ~/.claude/skills/write-brief/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/write-brief/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/write-brief/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\write-brief\SKILL.md on Windows. See the full install guide for step-by-step instructions.

📱 Install from your phone or desktop Telegram

Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Frequently asked questions

How do I install the Write Brief Claude Code skill?

Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/write-brief/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.

What does the Write Brief skill do?

Is this skill free to install?

Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.

When should I use the Write Brief skill?

Use Write Brief when your Claude Code task falls under the Product category — specifically in the product misc area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Write Brief" or describe the task and let Claude pick). Browse related skills at /category/product/.

What is a Claude Code skill and how does the Write Brief skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Write Brief is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Product category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA

samuelserraceo. (2026). Write Brief [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/write-brief/

BibTeX

@misc{write-brief-2026,
  author    = {samuelserraceo},
  title     = {Write Brief [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/write-brief/}
}

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