Home Assistant Integration knowledge

SKILL.md

File Locations

Integration code: ./homeassistant/components/<integration_domain>/

Integration tests: ./tests/components/<integration_domain>/

General guidelines

When looking for examples, prefer integrations with the platinum or gold quality scale level first.

Polling intervals are NOT user-configurable. Never add scan_interval, update_interval, or polling frequency options to config flows or config entries.

Do NOT allow users to set config entry names in config flows. Names are automatically generated or can be customized later in UI. Exception: helper integrations may allow custom names.

For entity actions and entity services, avoid requesting redundant defensive checks for fields already enforced by Home Assistant validation schemas and entity filters; only request extra guards when values bypass validation or are transformed unsafely.

When validation guarantees a key is present, prefer direct dictionary indexing (data["key"]) over .get("key") so invalid assumptions fail fast.

The following platforms have extra guidelines:

Diagnostics: platform-diagnostics.md for diagnostic data collection

Repairs: platform-repairs.md for user-actionable repair issues

Integration Quality Scale