https://www.parkjunwoo.com/tags/ratchet-code/Recent content in Ratchet Code on Architect PARK JUN WOOHugoenSat, 16 May 2026 14:00:00 +0900https://www.parkjunwoo.com/opinion/why-agents-work-and-break/Sat, 16 May 2026 14:00:00 +0900https://www.parkjunwoo.com/opinion/why-agents-work-and-break/The same model hallucinates in web chat yet ships 200-line features in a coding agent. It is not the model that changed – it is the topology. Generation can be probabilistic. Verification must be deterministic.https://www.parkjunwoo.com/tech/ratchet-pattern/Fri, 15 May 2026 14:00:00 +0900https://www.parkjunwoo.com/tech/ratchet-pattern/I asked an AI agent to write tests for 527 functions. It stopped at 40 and declared ‘done.’ The Ratchet Pattern forces completion by delegating the done/not-done decision to a mechanical verifier — so the agent keeps going until the machine says stop.https://www.parkjunwoo.com/opinion/feedback-topology/Thu, 14 May 2026 18:00:00 +0900https://www.parkjunwoo.com/opinion/feedback-topology/The same model stalls at 40 or completes all 527. The difference is not the model — it is the feedback structure. LLM performance depends far more on how fast and deterministic the feedback loop is than on the model itself.https://www.parkjunwoo.com/tech/tsma/Thu, 14 May 2026 09:00:00 +0900https://www.parkjunwoo.com/tech/tsma/A CLI tool that indexes every function, detects test presence, measures coverage, and gives precise feedback to LLM agents. One command builds a regression defense line around legacy code.https://www.parkjunwoo.com/tech/filefunc/Mon, 16 Mar 2026 13:50:00 +0900https://www.parkjunwoo.com/tech/filefunc/The navigation unit for an AI code agent is the file. filefunc is a Go code structure convention and CLI tool that enforces one concept per file.