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What
Claude Code now tracks per-file edit contributions by computing the magnitude of changes, enabling better understanding of how much Claude contributed to each file.
Details
- Computes
claudeContributionbased on the diff between old and new content for each edit - Tracks both regular edits and file deletions
- Logs attribution events:
"Attribution: Tracked N chars for path/to/file" - Uses content hashing to detect unchanged files
- Supports bulk edit tracking for batch operations
Evidence
File attribution system (search for "Attribution: Tracked")
Strings lifted out of the shipped bundle, so the claim above can be checked against them.