What problem does it solve? Game projects accumulate Game Design Documents (GDDs) and Architecture Decision Records (ADRs) that drift apart, leaving technical requirements uncovered, conflicting decisions, and stale engine assumptions. This Skill audits the entire architecture against every GDD and produces a traceability matrix with a PASS/CONCERNS/FAIL verdict before pre-production begins. ## Core Features & Use Cases - Requirements Traceability Matrix: Extracts technical requirements from every GDD, maps each to ADRs with Covered/Partial/Gap status, and maintains a stable TR-ID registry across review runs. - Cross-ADR Conflict Detection: Detects data ownership, integration contract, performance budget, dependency cycle, and state management conflicts between ADRs, plus a topologically sorted implementation order. - Engine Compatibility Audit: Verifies version consistency, deprecated API usage, and post-cutoff API assumptions against pinned engine reference docs, with an optional engine specialist subagent consultation. - Use Case: Before entering pre-production on a Godot game, run the review to discover that the combat GDD's combo-window requirement has no ADR, that two ADRs both claim ownership of the health value, and that one ADR references a deprecated API — then get a prioritized list of ADRs to write. ## Quick Start Ask the AI to run an architecture review over the design/gdd and docs/architecture directories and report the traceability matrix and verdict.