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Weave: Merging based on language structure and not lines

Hacker News · Jun 14, 2026, 2:45 AM

Key takeaways

  • Two agents edit different functions in the same file?
  • # Two agents edited different functions $ git merge feature-b CONFLICT (content): Merge conflict in src/lib.ts Automatic merge failed. # Git sees overlapping lines. # The functions don't actually overlap.
  • Parses code with tree-sitter, merges by function and class.

Entity-level semantic merge driver for Git. Two agents edit different functions in the same file? Clean merge. Every time.

# Two agents edited different functions $ git merge feature-b CONFLICT (content): Merge conflict in src/lib.ts Automatic merge failed. # Git sees overlapping lines. # The functions don't actually overlap. weave # Same merge, with weave configured $ git merge feature-b weave [src/lib.ts]: 2 entities matched, 2 modified, 0 conflicts Merge made by the 'ort' strategy. # Different functions = no conflict. copied $ brew install weave 31 out of 31. 31 merge scenarios across 7 languages. Full breakdown

Use just the merge driver. Or add coordination for multi-agent workflows. Full docs

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