@crewhaus/worker-runtime

A platform-neutral agent-loop runtime — the pure loop core (turn FSM, model-stream orchestration, tool dispatch + validation + permission gating, tool_result feedback, budget/limit enforcement, loop detection, trace emission) with every host capability injected via a WorkerPlatform.

Imports no node:* builtin and calls neither Date.now() nor Math.random(), so it runs on Cloudflare Workers (and any other fetch runtime). @crewhaus/runtime-core consumes it for the shared core on Node and wraps it with the node-coupled services (event log, session store, compaction, recovery, audit sinks); the three target-cf-worker-* emitters generate bundles that call it with a stateless WorkerPlatform.

v1 scope

Tools + budget + limits + trace. Compaction and recovery are deliberately Node-only; on the edge a context overflow ends the run with a classified context_overflow frame rather than compacting.

import { runWorkerLoop } from "@crewhaus/worker-runtime";

const result = await runWorkerLoop({
  platform: {
    now: () => Date.now(),
    randomId: () => crypto.randomUUID(),
    fetch: fetch.bind(globalThis),
  },
  model: "claude-sonnet-5",
  instructions: "You are a helpful assistant.",
  messages: [{ role: "user", content: "hello" }],
  apiKey: env.ANTHROPIC_API_KEY,
});

cf-worker tool policy

@crewhaus/worker-runtime/tool-policy is the single source of truth for which builtin tools are edge-safe; the compiler imports it to gate cf-worker emission (host tools such as bash/read/python fail the compile; edge-safe tools such as fetch/webSearch/mcp__* compile and run).

License

Apache-2.0