Durable handoffs for multi-agent pipelines

Short summary

Multi-agent pipelines behave like distributed systems where any LLM API call can fail mid-flight, forcing you to either re-run everything or build custom checkpointing. The Resonate runtime offers a third option: each yield* ctx.run() call is a durable checkpoint, so a crashed writer agent retries without re-running the researcher. The same primitive powers human-in-the-loop pauses via yield* ctx.promise(), which survives process crashes and resumes on external HTTP resolution.

• •Multi-agent pipelines need durable checkpointing to avoid re-running expensive LLM calls on failure
• •Resonate embeds durability into the runtime — no external orchestration platform or event bus required
• •Same checkpoint primitive supports human-in-the-loop workflows that survive process restarts

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