Measure how much of your code is AI-generated. Buildermark matches your coding agent diffs with commits to calculate how much is by agents. Open source. Runs natively on macOS, Windows, and Linux.

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Buildermark is an open source tool that measures how much of your codebase is written by AI coding agents. It works by matching agent diffs with git commits to calculate the percentage of AI-generated code. It also archives all conversations from agents like Claude Code, Codex, Gemini, and Cursor. A live demo shows 364 agent conversations that produced 94% of Buildermark's own code.

How much of your code is written by agents? - Buildermark (Open Source)

<p>Interesting idea. Tracking how much code actually comes from agents vs humans can give real clarity, especially as teams rely more on AI for day-to-day development.</p>


<p>If tools like this become standard, we might start optimizing for ‘agent efficiency’ the same way we currently optimize for CI/CD metrics. That changes how teams think about productivity entirely.</p>
