Use before writing PlayCanvas behaviour from scratch, to reuse the scripts and helpers the installed Engine already ships.
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See how to installReview the instructions the agent will receive before you install.
Before writing behaviour, check what the installed playcanvas package already provides.
Scripts live under scripts/esm/**; import only from there. List them:
rg 'static scriptName =' node_modules/playcanvas/scripts/esm \
| sed "s|.*/scripts/esm/||; s|:.*static scriptName = ['\"]| -> |; s|['\"].*||" \
| sort
Common ones are CameraControls, FirstPersonController, ThirdPersonController,
ShadowCatcher, ProceduralSky, Water, and Grid, plus XR and splat scripts. Modules under
scripts/esm/parsers are resource-handler classes, not scripts.
Core exports that are not scripts include CameraFrame for post-processing, Picker
(getSelectionAsync), TransformGizmo, OutlineRenderer, MiniStats, GltfExporter, and
UsdzExporter.
@attribute properties, defaults, and required components.find-examples, and copy the assets, layers, scene settings, and
render setup it depends on.Keep a shipped script's input mapping and damping unless asked otherwise, and verify input directions with real input rather than deriving signs from memory.
Grouped property updates differ by surface; preserve defaults you do not change. Read only the reference matching the code: direct Engine, React, or Web Components.
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Use when adding visual effects to a PlayCanvas app, to choose between particle systems, shader chunks, runtime meshes, and post-processing.
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Use when writing PlayCanvas Engine code touching transforms, cameras, lights, materials, meshes, bounds, or imports, to apply Engine conventions and avoid legacy APIs.
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Use when composing PlayCanvas entity hierarchies from models, colliders, rigid bodies, and scripts, so each object has one semantic root and clear lifecycle.
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Use when static PlayCanvas lighting, shadows, or ambient occlusion cost too much per frame and should be baked into lightmaps.
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Use when creating or restructuring a PlayCanvas app with the Engine API, @playcanvas/react, or @playcanvas/web-components, covering bootstrap, input, resize, physics, update loop, UI, and lifecycle.
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Use before repeatedly placing GLB models in PlayCanvas to record each asset's uniform scale, grounding offset, pivot compensation, and yaw once.
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