Home Assistant Quality & Testing

Use this skill to align changes with Home Assistant best practices and the Integration Quality Scale expectations.

When to Use

Planning or reviewing changes for config flows, options, or reauth
Deciding how to structure polling, discovery, and entities
Ensuring translations, metadata, and versioning are correct
Setting up or updating tests and CI
Driving toward Bronze/Silver IQS targets (config flow coverage, >95% overall coverage, diagnostics)

Async-only: Never block the event loop; offload sync work via hass.async_add_executor_job.
Coordinator-first: Centralize device I/O in DataUpdateCoordinator; entities consume coordinator.data.
Single source of discovery: Rely on declared discovery (dhcp/zeroconf/ssdp) or dedicated scanner; avoid ad-hoc discovery inside polling.
Separation: Keep protocol/library logic outside entities; prefer a library (requirements) for raw API/UDP/HTTP handling.
Quality Scale focus: Bronze requires 100% config_flow coverage and connection tests; Silver pushes >95% overall coverage, strict typing, and reauth flows.