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Overview
Code churn and AI agent detection at scale. CodeDelta finds the AI code, measures the churn, and blocks the risk — proven on all 43.5 million lines of Chromium.
News
Can you tell AI code from human code - and does it matter?
Building a mailer with AI assistance, I noticed it never edits code in place - it deletes and regenerates. Measured: established hand-maintained projects rework one churned statement in six; an agent-built app, one in five hundred. Whether that matters is
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Challenge me to a codebase scan
I measure codebases as logical statements - churn, REWORK, what a year of development actually did. Biggest scan so far: a year of Chromium, 87 million lines through the engine on an 8GB laptop. Name a public repo and I'll scan it and publish the results.
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Asked to scan Erlang/OTP, cloc kept breaking - what it took to measure it properly
A request to scan 6.5 years of Erlang/OTP: cloc aborted on 3 of 7 windows and misread real Erlang, our own engine broke on quarter-megabyte JIT statements, and the finished measurement shows 2026 REWORK at 22.6% - double any year since 2020.
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