feat(store): createDatabaseProvider — driver-agnostic swappable db port#9
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The agent core imports a single `db` and uses it directly; this makes that `db` a lazy proxy that forwards to whatever database instance the runtime injects via setDatabase(). The same core then runs on Cloudflare D1 (prod), SQLite/miniflare (eval + the portable inner shell), or libsql/Turso/Postgres (future) — adding a DB is one adapter + a setDatabase call, with zero changes to the modules importing `db`. Substrate-free: knows nothing about D1, drizzle, or any schema. Binds forwarded methods so `this` resolves through the proxy. 166 tests (+4).
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First brick of the portable inner shell: a swappable database provider that decouples the agent's persistence from any one driver.
The agent core imports a single
dband uses it directly. This makes thatdba lazy proxy forwarding to whatever instance the runtime injects viasetDatabase(). The same core then runs on:setDatabase(drizzle(d1, schema))(prod)Adding a new database is one adapter + a
setDatabasecall — none of the modules importingdbchange. Substrate-free (no D1/drizzle/schema knowledge); binds forwarded methods sothisresolves through the proxy. 166 tests (+4).Consumers wire their
db/index.tsonto it and gainsetDatabase()alongside the existingsetD1().🤖 Generated with Claude Code