01
Bounded prompt windows
Declare turn and token limits so context assembly remains predictable.
Agent Primitives /Context = Conversation assembly
One conversation, assembled on demand.
Bind messages and working memory to a conversation, then assemble a bounded, prompt-ready history with an explicit policy instead of ad hoc context plumbing.
context.ts
const ctx = laser.context(conversation)
await ctx.append(COMMANDS, COMMAND)
await ctx.append(RESPONSES, RESPONSE)
// the prompt window is a declared policy
const policy = new ContextChain([
new LastN(20),
new TokenBudget(4_000),
])
const turns = await ctx.fetchWith(
[COMMANDS, RESPONSES], policy
)Primitive guarantees
A durable foundation, not another integration.
02
Conversation-scoped
Keep session history separate while shared knowledge stays reusable across agents.
03
Reconstructable
Every included turn traces back to durable records rather than transient process state.
Built forSupport copilotsMulti-turn agentsSession replay
Explore the system
Eight primitives. One durable history.
Combine transport, prompt assembly, recall, relationships, and live views without stitching together disconnected systems.