docs-product

name	docs-product
description	Product documentation branch — the 'why' and 'what' of a project: VISION.md, PRD.md, ROADMAP.md, FEATURES.md. Written from an idea forward, before engineering docs. Order: VISION -> PRD -> ROADMAP -> FEATURES. Full catalog + checklist in references/product-docs.md, templates in templates/. Triggers: 'продуктовая документация', 'vision', 'prd', 'роадмап', 'roadmap', 'фичи документация', 'product docs', 'требования к продукту', 'документация продукта'.
license	MIT
metadata	{"author":"bestdeejay-design","version":"1.0.0"}
compatibility	No scripts — template-driven authoring
when_to_use	Use when user needs product docs: 'продуктовая документация', 'vision', 'prd', 'роадмап', 'roadmap', 'product docs', 'требования к продукту', 'документация продукта'. Examples: 'write a PRD for my app', 'создай VISION и ROADMAP для проекта'.

Docs Product — product documentation («why» & «what»)

Use this skill to write the product-facing documents: vision, requirements, roadmap, feature catalog. Written from an idea forward — before (or in parallel with) engineering docs.

When to use

• A project needs its product docs: VISION, PRD, ROADMAP, FEATURES.
• User asks for "продуктовая документация", "vision", "prd", "роадмап", "требования к продукту", "product requirements".
• Requirements must become the input for engineering docs.

Do NOT use

• For engineering docs (architecture, ADR, tests, dev guide, map) — that is docs-project.
• For the meta-guide (phases, levels L1/L2/L3, completeness checklist) — docs-system.

Which docs belong here

File	Purpose	When	Template
docs/VISION.md	Why the product exists: audience, problem, value, principles, scope, long-term success	Phase 1 — first, stays stable	templates/VISION.tmpl
docs/PRD.md	What we build: functional + non-functional requirements, priorities, acceptance criteria, success metrics, user stories	After VISION, before architecture	templates/PRD.tmpl
docs/ROADMAP.md	What ships when: milestones, value per milestone, proof (metrics)	Phase 2+, updated each milestone	templates/ROADMAP.tmpl
docs/FEATURES.md	Feature catalog + status (✅/📋) — the bridge to engineering	From requirements, kept current	templates/FEATURES.tmpl

The golden chain: VISION → PRD → ROADMAP → FEATURES. Vision spawns requirements, requirements spawn the plan and the feature catalog. Nothing is written "from the end".

Order of writing

1. VISION — can you state the product in 1–2 sentences? If not, stop and clarify before writing anything else.
2. PRD — goals/non-goals, stories with priorities, functional + non-functional requirements, acceptance criteria, success metrics (a milestone without a metric is a wishlist).
3. ROADMAP — order the PRD's milestones by value (not effort), each with a target date, features, and proof.
4. FEATURES — the living status board of every feature, ✅/📋 only against reality. This doc hands the product requirements to the engineering side.

Links across the boundary (with docs-project)

Engineering doc	Takes from product	Gives back
ARCHITECTURE.md	PRD non-functional requirements	component decisions → PRD "technical notes"
TEST_CASES.md	acceptance criteria	proof that a story is done
IMPROVEMENTS.md	roadmap drift (missed dates, changed scope)	prioritized fix plan → next milestone
REVIEW.md	any doc-vs-reality mismatch	reconciled product/eng truth

Checklist (product side)

• VISION: 1 paragraph; audience named; explicitly listed out-of-scope items.
• PRD: every story has a priority (MoSCoW/P0–P2) and links to a feature.
• PRD: success metrics present (baseline → target) — not "quality" in prose.
• ROADMAP: milestones ordered by value; each has a date/target + a metric.
• FEATURES: ✅/📋 statuses match reality (no wishlist-only catalog).

Rule: product docs answer «why» and «what»; engineering docs answer «how». If a doc has no reader and no question it answers — it does not belong.