Data Access & Storage Patterns

When this skill applies

Use this skill when the main question is where data should live and how a VTEX IO app should read or write it.

• Designing new data flows for an IO app
• Deciding whether to use app settings, configuration apps, Master Data, VBase, or VTEX core APIs
• Reviewing code that reads or writes large, duplicated, or critical datasets
• Introducing caching layers or derived local views around existing APIs

Do not use this skill for:

• detailed Master Data schema or entity modeling
• app settings or configuration app schema design
• auth tokens or policies such as AUTH_TOKEN, STORE_TOKEN, or manifest permissions
• service runtime sizing or concurrency tuning

Decision rules