March 19: Async Exports and the Agentic Levels

The walkthrough generator moved to async export queues to stop timing out on large composites, and the channel-aware memory budget model got a conservative overhaul after OOM incidents on multi-channel composites.

Developer Journal

Async exports and memory budgets

The recipe walkthrough had been timing out on large composites because the export was synchronous — the backend proxy would give up before the processing engine finished. Moved the export to an async queue with bumped proxy timeouts, which fixed the immediate problem. But the deeper issue was memory: multi-channel composites were blowing past the 2GB container limit because the memory budget calculation didn't account for channel count properly. Rewrote it to be channel-aware and conservative.

Agentic coding evolution

Had a good conversation about the levels of agentic coding — from basic prompting through skills, hooks, and multi-agent coordination. I'm working at level 4 now with hooks enforcing quality structurally, and have tried level 5 (parallel agents) a few times but it usually breaks down. The interesting realization: the experience isn't unique anymore. Others are reaching similar levels with different tools.

What shipped

PR	Title
#879	docs: trim agent coordination section
#877	feat: walkthrough uses async export queue, bump backend proxy timeouts
#875	fix: channel-aware memory budget prevents OOM on multi-channel composites