Guides for Spec Author

Writes and reviews feature specs; wants the browser preview of specs and composed user docs to be always current.

Guide	Feature
Review specs in the live preview	Docs Serve & Build
Regenerate all docs from specs	Generate Command
Re-scan after enriching specs	Scan Command
Author personas and journey flows	User Docs Composition (Personas & Journeys)
Ground implementation in the governing spec	MCP Read Tool
Draft and approve a feature spec	MCP Write Tools