feat: v2 - ai assistant web worker scaffolding#2328
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Description
Introduces the Web Worker infrastructure for the in-browser AI agent. A dedicated worker (
src/agent/worker.ts) is spawned lazily on the first chat turn and communicates with the main thread over Comlink. The worker currently returns an echo response, establishing that the bundling, lazy-spawn, and Comlink round-trip work end-to-end before the LLM and tool bridge are wired in.AgentClient(agentClient.ts) manages the worker lifecycle — spawning, wrapping with Comlink, callinginitonce, and exposing a typedask()method.AiChatStoreis updated to callAgentClient.ask()instead of the previous hardcoded echo, and now threadsthreadIdand livethinkingTextstatus updates through from the worker response.The worker bundle is configured to emit ES module output so
import.meta.urlresolves correctly inside the worker. AglobalThis.processpolyfill is inlined in the worker entry point to handle an unguardedprocess.envread in@openai/agents-corev0.4.x without falsely advertising a Node.js environment.An
ARCHITECTURE.mdis added undersrc/agent/documenting the full topology: thread split, Comlink bridge contract, dispatcher/sub-agent structure, tool registry, session and memory model, observability hooks, skills loader, configuration knobs, and known caveats.Related Issue and Pull requests
Type of Change
Checklist
Screenshots (if applicable)
AI Assistant - WebWorker.mov (uploaded via Graphite)
Test Instructions
Worker echo: <your message>.threadIdis assigned and persists across subsequent messages in the same session.Additional Comments
The
comlinkpackage is added as a production dependency. The@openai/agents-core/_shimsVite alias and the SDK dependency itself are deferred to the next PR, which wires the actual LLM round-trip and tool bridge.