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Notes on autonomous systems, the economics of building with language models, and the failure modes that only show up once something has been running unattended for a while.

Your agent probably isn't an agentI built something autonomous, then had to decide whether to call it an AI agent. The honest answer took a 2×2 and one uncomfortable test.August 2026  ·  7 min
What one lecture recording costsDoing the token arithmetic before writing the feature decided the architecture — and the number was small enough to change what I was allowed to build.August 2026  ·  8 min
A failure state nobody could reachIt was defined, documented, listed as retryable, and shipped. No code path could produce it. Every failure of that kind was reported to users as permanent.August 2026  ·  7 min