RandallLiuXin

Reviews Godot physics implementation for known pitfalls. Triggers AFTER implementation, when code involves CollisionObject2D, RigidBody2D, CharacterBody2D, Area2D, collision layers, or physics callbacks. Do NOT use this skill for planning or teaching — only for post-implementation review.

Self-diagnostic skill for godotmaker itself. Invoked when the main pipeline can't make progress (e.g. several fixgap rounds in a row failed to converge). NOT a "smarter fixgap" — does not modify game code, does not write files, only reports diagnosis to chat. If a godotmaker-side defect is the root cause, drafts an issue the user can post upstream. Explicit invocation only — use /gm-rescue.

gecs ECS framework API reference — the Entity-Component-System addon for Godot 4.x used by this project. Covers Entity, Component, System, World, QueryBuilder, Relationship, Observer, CommandBuffer, SystemTimer. Use when the task involves ECS architecture: creating entities with components, defining component data classes (C_ prefix), writing game logic systems, querying entities by component comp

Evaluate the current tag's quality: enforce the playable-closed-loop gate, maintain a single cross-tag e2e/ suite that always reflects the current game (add tests for new mechanics, prune tests for mechanics this tag deliberately removed), and reason about gameplay quality. Independent from the build process — fresh perspective on the final product. Explicit invocation only — use /gm-evaluate.

Look up Godot engine class APIs — methods, properties, signals, enums. Use when you need to find which class to use or look up specific API details. Supports version-specific docs — reads the correct API for the project's Godot version.

Manage Godot input action mappings in project.godot. Use when adding input actions, changing key bindings, setting up controls for a new genre, or validating that all referenced actions exist. Called by project-scaffold (initial setup), workers (new mechanics), and the dispatching role (GDD changes requiring new inputs).

Fix gaps identified by the Evaluator. Generates GAP.md from evaluation.json, dispatches workers to address critical/major issues, then runs one final verify+review pass. Unlike gm-build (PLAN.md-driven), gm-fixgap is GAP.md-driven. Explicit invocation only — use /gm-fixgap.

Reviews Godot Shader/Material implementation for known pitfalls. Triggers AFTER implementation, when code involves ShaderMaterial, set_shader_parameter, .gdshader, VisualShader, hint_screen_texture, BackBufferCopy, instance uniform, or uniform declarations. Do NOT use this skill for planning or teaching — only for post-implementation review.

Clarifies game design requirements and produces a Game Design Document (GDD). Use this skill BEFORE writing any game code. Triggers when the user describes a game idea, says "make a game", "build a {genre}", "I want a platformer", "create a tower defense", or provides any game concept — even vague ones like "make something fun" or "I have a game idea". Also triggers on "plan a game", "design a gam

Capture gameplay screenshots using godot-e2e for visual verification. Use when you need to: take a screenshot of the running game, capture multiple screenshots during an E2E scenario, generate reference.png, visually verify game state, or provide screenshots for VQA analysis. Triggers: "screenshot", "capture screenshot", "take screenshot", "reference.png", "visual capture", "screenshot the game".

Reviews Godot TileMap implementation for known pitfalls. Triggers AFTER implementation, when code involves TileMapLayer, TileSet, TileSetAtlasSource, TileSetScenesCollectionSource, terrain painting, set_cell, erase_cell, get_cell_tile_data, collision polygons on tiles, or NavigationRegion2D with tile-based navigation. Do NOT use this skill for planning or teaching — only for post-implementation re

Scaffold a new Godot project: project.godot + addons + base directories + e2e/conftest.py + initial git commit. Lifetime-once role — runs only on fresh projects. Explicit invocation only — use /gm-scaffold.