Root README covers architecture, Rust builder API quick start, YAML pipeline quick start, provider table, deno executor overview, feature flags, and testing instructions. Per-crate READMEs follow consistent structure: one-liner, what it does, quick start code example, API reference, configuration, testing, license. Engineering-confident tone throughout.
SqlitePersistenceProvider using sqlx with in-memory and file-based SQLite. Schema with 6 tables, 8 indexes, created via ensure_store_exists. Transactions for multi-table operations. Passes persistence_suite tests.
