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bmad-product-brief

Create, update, or validate product briefs through conversational coaching and structured workflows.

Updated Jul 9, 2026
Search Tags:#planning#product management#validation#discovery#product brief#facilitation#bmad
One-click install
npx skills add https://github.com/unbakedcosmos/thumbnailer --skill bmad-product-brief-unbakedcosmos
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: bmad-product-brief
Source: https://github.com/unbakedcosmos/thumbnailer/tree/main/.claude/skills/bmad-product-brief
Command: npx skills add https://github.com/unbakedcosmos/thumbnailer --skill bmad-product-brief-unbakedcosmos

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes assets (resource) components.

What problem does it solve? Turning a rough product idea into a clear, right-sized product brief is hard: assumptions go unexamined, key context stays in the user's head, and drafts drift out of sync with decisions. This Skill coaches users through creating, updating, or validating a product brief so the result is honest, purpose-fit, and ready for downstream planning. ## Core Features & Use Cases - Three intent modes: Create a new brief from scratch, Update an existing brief against a change signal, or Validate a brief with honest, line-cited critique. - Guided discovery: Conversational brain-dump facilitation with web-research subagents, pushback on thin assumptions, and a choice between a Fast path (assumption-tagged draft) and a Coaching path (section-by-section). - Persistent workspace: Briefs land in a run folder with YAML frontmatter, an append-only memlog audit trail, and an addendum for depth that belongs downstream; sessions can stop and resume. - Use Case: A founder with a pitch tomorrow invokes the Skill, brain-dumps the idea, picks the Fast path, and receives a complete brief with [ASSUMPTION] tags to review and correct. ## Quick Start Ask the assistant to help you create a product brief for your product idea and answer its discovery questions.

Frequently Asked Questions about bmad-product-brief

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I create a product brief with AI assistance?▼

Invoke the Skill and describe your product idea in a brain dump. It runs a discovery conversation, offers a Fast path (draft with [ASSUMPTION] tags) or Coaching path (section-by-section), then writes brief.md with YAML frontmatter into a run folder.

How do I update an existing product brief when requirements change?▼

Use the Update intent: the Skill reads the brief, addendum, memlog, and original inputs, surfaces conflicts with prior decisions, then reconciles the change. Fundamental changes trigger an offer to Create a fresh brief instead of patching.

Can I validate a product brief for weaknesses?▼

Yes. The Validate intent reads the brief, addendum, and memlog, then returns an honest inline critique citing specific lines, with caveats for what cannot be evaluated. It always offers to roll findings into an Update.

Does the product brief workflow support headless or non-interactive runs?▼

Yes. In headless mode it completes the detected intent without prompting, using provided inputs and workspace contents. If intent stays ambiguous it halts with a blocked JSON status and reason field.

What files does the product brief workflow produce?▼

It produces brief.md with YAML frontmatter, an optional addendum.md for downstream depth, and an append-only .memlog.md audit trail, all inside a run folder under the configured briefs output path.

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