review-all-gdds

# Review All GDDs This skill reads every system GDD simultaneously and performs two complementary reviews that cannot be done per-GDD in isolation: 1. **Cross-GDD Consistency** — contradictions, stale references, and ownership conflicts between documents 2. **Game Design Holism** — issues that only emerge when you see all systems together: dominant strategies, broken economies, cognitive overload, pillar drift, competing progression loops **This is distinct from `/design-review`**, which reviews one GDD for internal completeness. This skill reviews the *relationships* between all GDDs. **When to run:** - After all MVP-tier GDDs are individually approved - After any GDD is significantly revised mid-production - Before `/create-architecture` begins (architecture built on inconsistent GDDs inherits those inconsistencies) **Argument modes:** **Focus:** `$ARGUMENTS[0]` (blank = `full`) - **No argument / `full`**: Both consistency and design theory passes - **`consistency`**: Cross-GDD consistency checks only (faster) - **`design-theory`**: Game design holism checks only - **`since-last-review`**: Only GDDs modified since the last review report (git-based) --- ## Phase 1: Load Everything ### Phase 1a — L0: Summary Scan (fast, low tokens) Before reading any full document, use Grep to extract `## Summary` sections from all GDD files: ``` Grep pattern="## Summary" glob="design/gdd/*.md" output_mode="content" -A 5 ``` Display a manifest to the user: ``` Found [N...