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+# 2026-02-24 Session Notes
+
+## Claude Code Git Attribution Disable Investigation
+
+Nicholai requested help disabling the environment variable that causes Claude Code to automatically append `Co-Authored-By: Claude...` attribution trailers to git commits. The assistant identified this as Claude Code's `CLAUDE_CO_AUTHOR` behavior, controlled by feature flags in the Claude Code settings.
+
+Initial investigation found references to `tengu_ant_attribution_header_new` and `tengu_attribution_header` configuration flags in backup `.claude.json` files, both set to `true`. The assistant was in the process of checking the current live settings when the conversation ended.
+
+Next steps: Locate and modify the active Claude Code settings file to disable these attribution headers.
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