Canvas Plugin Assistant

Unit test authoring and coverage checking for Canvas plugins

Canvas SDK reference and documentation. Use whenever a question, claim, or piece of code touches Canvas SDK capabilities, API usage, implementation patterns, or testing — including quick conversational questions ("how do I ingest ADTs?", "what's the import for X?", "does Canvas support Y?"). The bundled docs are the source of truth; do not answer Canvas SDK questions from memory.

Canvas native-feature reference. Use whenever a question or plan touches whether Canvas already does something natively ("can we set up appointment reminders?", "does Canvas handle X out of the box?"). The bundled docs are the source of truth; do not answer from memory.

Generate SVG icons and convert them to 48x48 PNG format for Canvas plugins and applications

Canvas plugin architecture patterns, best practices, and implementation templates

Analyze Canvas instance configuration to understand the target environment for plugin development

Custom Data anti-patterns and corrections for Canvas plugins - unnecessary compatibility checks, misuse of AttributeHubs vs CustomModels

Database performance for Canvas plugins - N+1 detection, over-hydration/memory, write amplification, and Canvas execution limits (effect-batch ceiling, dbid PK)

Design, UI, data-access, and packaging conventions for Canvas provider companion applications (scopes `provider_companion_global`, `provider_companion_patient_specific`, `provider_companion_note_specific`). Use when building or reviewing a plugin whose manifest declares one of those scopes, or whose `Application.on_open` emits a `LaunchModalEffect` for the companion surface.

Security review for plugins acting as FHIR API clients - token management, scope validation, and patient-scoped authorization

Security review for plugin API endpoints (SimpleAPI, WebSocket) - authentication and authorization when your plugin is the SERVER

FHIR API reference and documentation for Canvas plugins that need to read or write data via FHIR endpoints