01
Atomic updates
Compare-and-swap guards shared state against lost updates from concurrent workers.
Agent Primitives /State = Keyed working data
Keyed state, with safe branches.
Keep point reads, compare-and-swap updates, and TTLs next to the log. Copy-on-write branches let agents explore a change before promoting it or discarding it.
kv.ts
const kv = laser.kv("profiles")
await kv.set(utf8(KEY)).json(profile)
.ttl(TTL_MICROS).send()
const old = await kv.getEntry(utf8(KEY))
if (!old) throw new Error("profile missing")
await kv.set(utf8(KEY)).json(upgraded)
.expectVersion(old.version).commit()
const fork = laser.fork("experiment-1")
await fork.squash()
await fork.create().severed()
.tables(["profiles"]).send()
await fork.putRow("profiles", 0, 0n)
.field("plan", "enterprise-preview").send()
await fork.promote()Primitive guarantees
A durable foundation, not another integration.
02
Lifecycle controls
TTLs keep sessions and temporary working data bounded without a separate cleanup system.
03
Copy-on-write branches
Test alternate state safely, then promote the branch only when the result is valid.
Built forAgent sessionsFeature flagsWhat-if simulations
Explore the system
Eight primitives. One durable history.
Combine transport, prompt assembly, recall, relationships, and live views without stitching together disconnected systems.