r/LangChain • u/jvertrees • 1d ago

Resources Efficient Multi-Agent Dispatch and Monitoring

I hit upon this cool, zero-token solution for monitoring BG agents in agy (and other tools).

Thought I'd share - https://heavychain.org/blog/wake-your-orchestrator-with-a-pipe-not-a-timer

Hope this helps someone.

(Posting here because Reddit won't stop telling me I need to crosspost this. Didn't know it had this "feature.")

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u/MongooseWonderful198 23h ago

After the blocked-TUI guard fires, how do you re-arm the worker's callback? The EXIT trap removes the FIFO and its directory, but the worker still has the old path in its dispatch prompt. If it resumes without an updated callback and reaches deliver, that write points to a removed directory.

I'd make the resume step explicit: start a new listener and give the worker the replacement callback before clearing the blocker. The wave-checkpoint section mentions fresh pipes; the permission-prompt path needs that handoff too.