Flutter Caching

Make data correct first, then reduce repeated work. A cache is a derived copy; it is not durable user data or a source of truth unless the feature explicitly defines a local replica.

Scope and evidence

Classify claims while working:

• Documented: a framework, protocol, or platform contract.
• Platform/package-dependent: verify the exact SDK, package, and target.
• Engineering choice: explain the product trade-off.
• Measured: report a reproducible before/after metric; never call a size or policy optimal without it.

Read authoritative-sources.md when a claim affects implementation, platform behavior, or a version-sensitive API.