Add capability for organizing backlog into shippable business capabilities using value-based milestones (not time-based phases). Components: - milestone-planning skill: Value-based framework, vertical slice test, one active milestone - create-milestones skill: Orchestrator (Haiku) for analyzing and grouping issues - milestone-planner agent: Groups issues into capabilities autonomously (Haiku) Core Principles: - Milestone = shippable business capability (not phase) - One active milestone at a time (preserves focus) - 5-25 issues per milestone (right-sized) - Value labels: value/high, value/medium, value/low - Risk labels: risk/high (optional) - Vertical slice test (can be demoed independently) - No dates (capability-based, not time-based) Workflow: /create-milestones reads existing Gitea issues → analyzes capability boundaries → groups into milestones → creates in Gitea → assigns issues → applies labels → user manually activates ONE milestone Co-Authored-By: Claude Code <noreply@anthropic.com>