Apply Convex database best practices for cost optimization, performance, security, and architecture.
Use when: building Convex backends, optimizing queries, handling embeddings/vector search,
reviewing Convex code, designing schemas, planning migrations, or discussing Convex architecture.
Keywords: Convex, real-time database, queries, mutations, actions, indexes, pagination,
vector search, embeddings, schema, migrations, ctx.auth, convex-helpers, bandwidth.