sem
Fewer than 5 people recommend it so far, so there's no written verdict. Here is what commenters said.
Why people recommend it
“It does entity-level diffs, blame, and impact analysis.”
“It gives you entity-level version control.”
Show 1 more
“i think that's where version control is going. especially useful with agents and CI”
Caveats and dissent
“I have noticed some rather concerning merge "resolutions".”
Often compared with
From the makers not counted in the ranking
“We built sem(Ataraxy-Labs/sem) which extracts entities from 30+ languages via tree-sitter”
“We're building this into sem”
“We've been building an open source tool called sem”
“sem knows that something like "validateToken" is a function and tracks it as an entity across versions”
“we fixed that, introducing Semantic diffs!”
“we use a language specific parser called sem here”
Threads where it came up
- Weave – A language aware merge algorithm based on entities 4 mentions
- Ask HN: What Are You Working On? (July 2026) 1 mention
- Vera: a programming language designed for machines to write 1 mention
- GitHub Stacked PRs 1 mention
- Show HN: Git bayesect – Bayesian Git bisection for non-deterministic bugs 1 mention
- More on Version Control 1 mention
Quotes are verbatim; the verdict and theme labels are written by a model from these comments, and every clause links to its sources.
All comments 7
I posted about my project below - https://github.com/0x007BA7/codebook But maybe you should checkout the tools it’s based on, sem - https://github.com/Ataraxy-Labs/sem and ultimately treesitter. They at least give a more structured approach to dealing with code than simple text.
“It does entity-level diffs, blame, and impact analysis.”
“It gives you entity-level version control.”
“i think that's where version control is going. especially useful with agents and CI”
“I have noticed some rather concerning merge "resolutions".”
“https://github.com/Ataraxy-Labs/sem stores AST operations in git”
“It uses sem's entity graph to triage PRs”