Developer Tools & Repos Agent Skills for Codex CLI

Use when a cross-engine gameplay task needs a Layer 2 shared-runtime GOAP design for goal-driven multi-step action planning, explicit…

Use when a cross-engine gameplay task needs a Layer 2 shared-runtime performance review for spawn/despawn churn, GC spikes, or short-lived…

Use when a cross-engine gameplay task needs a Layer 2 shared-runtime Utility AI design for choosing among several simultaneously valid…

Conduct game domain and industry research.

Expert skill for building web-based game engines and games using HTML5, Canvas, WebGL, and JavaScript.

Main orchestrator for web game development.

Create, update, validate, or analyze a game project's PRD.

Verifies game builds with runtime evidence across rendering, user input, core loop mechanics, outcomes, and restarts.

Generate automated game tests for gameplay systems.

Create comprehensive game test scenarios.

Translates game concepts into comprehensive, playable game design documents covering core loops, world reactivity, level pacing, and…

Integrate Game Center features using GameKit.

Edit existing GameObjects and components in Unity with unity-cli.

After completion, verify against: ./checklist.md

Set up Gamma API v1.0 authentication and first request.

GAN-inspired Generator-Evaluator agent harness for building high-quality applications autonomously.

Geometric Algebra game mechanics via ganja.js with implicit player skills for wedge/vee/dot operations

Audit existing API quality controls — find missing lint rules, gaps in CI gates, and quality debt.

Facilitate game brainstorming sessions with game-specific techniques.

Plan UX patterns and design specifications for game UI/HUD elements.

GDScript code intelligence — diagnostics, hover, go-to-definition, references, and symbols via Godot's built-in LSP.