untactit — Writing https://untactit.com/blog Measurements from real machines, and the failure modes we hit while building. en <![CDATA[Shopify's "split brain" is not a filename dispute. It is drift, and one standard file will not end it.]]> https://untactit.com/shopify-split-brain-is-drift https://untactit.com/shopify-split-brain-is-drift Tue, 15 Sep 2026 09:00:00 +0900 <![CDATA[The ledger said 763 assets. The platforms said about 400.]]> https://untactit.com/the-ledger-said-763 https://untactit.com/the-ledger-said-763 Wed, 19 Aug 2026 09:00:00 +0900 <![CDATA[24 of the 30 duplicate groups were not duplicates]]> https://untactit.com/duplicates-that-were-not https://untactit.com/duplicates-that-were-not Wed, 19 Aug 2026 09:00:00 +0900 <![CDATA[AGENTS.md was supposed to end the sprawl. I counted the files on one laptop.]]> https://untactit.com/agents-md-file-sprawl https://untactit.com/agents-md-file-sprawl Mon, 17 Aug 2026 09:00:00 +0900 <![CDATA[Why your AI agent instruction files drift across machines]]> https://untactit.com/agent-instruction-files-drift https://untactit.com/agent-instruction-files-drift Thu, 13 Aug 2026 09:00:00 +0900 <![CDATA[Generating your agent rules from one file does not stop them drifting]]> https://untactit.com/generated-rules-still-drift https://untactit.com/generated-rules-still-drift Tue, 11 Aug 2026 09:00:00 +0900 <![CDATA[I found 18 versions of the same CLAUDE.md on one laptop]]> https://untactit.com/eighteen-versions-of-claude-md https://untactit.com/eighteen-versions-of-claude-md Tue, 11 Aug 2026 09:00:00 +0900