skills/google-earth-engine/references/authoritative-sources.md

# Authoritative sources

- Last verified: 2026-07-19
- Review cadence: every 3 months
- Refresh triggers: Earth Engine API, catalog, quota, export, or billing policy change

## Canonical sources

- [Earth Engine guides](https://developers.google.com/earth-engine/guides) — official API concepts and workflows.
- [Earth Engine best practices](https://developers.google.com/earth-engine/guides/best_practices) — server-side execution, scaling, and efficiency.
- [Earth Engine processing environments](https://developers.google.com/earth-engine/guides/processing_environments) — interactive and batch execution behavior.
- [Earth Engine data catalog](https://developers.google.com/earth-engine/datasets) — collection identifiers and provider metadata.

Check catalog status and policy pages at execution time. Record collection IDs, asset versions, dates, scale, projection, masks, reducers, and export parameters.