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The generated pages in this section document the supported public worker entry point:
Use the reference for exact signatures, inputs, results, errors, property fields, portal functions, declared capabilities, and worker-safe elements. Start with the primary authoring APIs: Worker-safe Fluid UI:

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Capability declarations

Every portal function and declarative capability that a widget calls must appear in that widget’s uses array. Import and declare the same typed function value instead of copying a capability name into a separate list. The callable capability exports are under Variables because the SDK exports them as typed const values. Each reference page documents the input, result, required uses declaration, runtime constraints, and error behavior.

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Supported boundary

This reference covers the supported worker-safe exports from @fluid-app/portal-sdk/widgets/worker.

Widget Package authoring

Choose a package model, define widgets, validate them, and publish through the supported lifecycle.