Sprint orchestration for Claude Code. Describe a feature, get production-ready code through an automated design→spec→plan→code→QA pipeline. Drives Claude Code's native Agent tool for multi-agent execution with worktree isolation. Includes 3 portable methodology skills usable standalone: • TDD Development — RED-GREEN-REFACTOR cycle with 4-phase root cause investigation • QA 12 Dimensions — two-stage code review + 12-dimension scenario test coverage • Architecture Review — codebase pattern analysis → decisive choice → implementation blueprint