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Test-first discipline for FlatRedBall2 engine changes. Triggers whenever editing any file under src/ for a behavior change (bug fix or feature). Not for XML docs, renames, style-only edits, or sample code.
Codex または Claude でインストール この Prompt をコピーして Codex、Claude、または他のアシスタントに貼り付けると、Skill ページを確認してインストールできます。
SOC 職業分類に基づく
Gum Integration in FlatRedBall2. Use when working with UI, HUD, menus, buttons, labels, text display, StackPanel, Panel, layout, Gum Forms controls, Add, AddOverlay, screen-space vs world-space UI, blurry or low-res text, FontSize, text opacity/alpha, or any Gum-related question. Also trigger when user asks about displaying text on screen.
TMX map file creation and editing for FlatRedBall2. Use when creating or modifying Tiled .tmx level files, placing collision tiles, resizing maps, or adding layers. Covers the base template, StandardTileset tile IDs, layer conventions, and CSV tile data format.
Writing headless tests for the Animation Editor (Avalonia). Triggers: AnimationEditor.App.Tests, [AvaloniaFact], TestServices, CreateMainWindow, service wiring in tests, UI-thread RunJobs.
Sprite animation in FlatRedBall2. Use for AnimationChain, AnimationChainList, .achx files, Aseprite/.ase loading, Sprite.PlayAnimation, frame-based texture flipping, looping/non-looping animations, AnimationFinished events, and per-frame collision shapes (hitboxes/hurtboxes, static object collision).
Entities and Factories in FlatRedBall2. Use when working with Entity subclasses, Factory<T>, spawning/creating/destroying entities, entity lifecycle, Add, shape children, CustomInitialize/CustomActivity, or Engine.GetFactory<T>(). Trigger on any entity creation, destruction, or factory question.
Level Data in FlatRedBall2. Use when working with level layouts, level progression, loading TMX maps, generating collision from tile layers, or transitioning between levels. Covers TMX-based level setup, TileShapes generation, and level advancement patterns.
| name | engine-tdd |
| description | Test-first discipline for FlatRedBall2 engine changes. Triggers whenever editing any file under src/ for a behavior change (bug fix or feature). Not for XML docs, renames, style-only edits, or sample code. |
Behavior changes in src/ require a failing test in tests/FlatRedBall2.Tests/ before the source edit. Write it, run it, watch it fail, then fix.
No "the cause is obvious, I'll skip the test" exception — that reasoning is how silent regressions ship. If you're about to edit src/ without a failing test open, stop.
Exceptions: XML docs, style-only edits, pure renames, dead-code removal.
Before adding any new public or virtual member to an engine base class (Screen, Entity, FlatRedBallService, etc.), stop and flag it as an API design decision. Ask before writing code. New public/virtual surface is a footgun risk — it implies intent to users, shows up in IntelliSense, and is hard to remove once shipped.
