Ataraxy labs Sem by ataraxy-labs
Semantic version control, entity-level diffs, blame, and impact analysis on top of git. 26 languages via tree-sitter. Built for coding agents.
About Ataraxy labs Sem
From the project's README at github.com/ataraxy-labs/sem. Lightly cleaned for readability; for the full source see the upstream repo.
> Part of the Ataraxy Labs stack, agent-native infrastructure for software development. See also: weave (entity-level git merge driver) · inspect (semantic code review) · opensessions (tmux sidebar for coding agents). > > Read the manifesto: https://ataraxy-labs.com/#thesis · Essays: https://ataraxy-labs.com/blogs · LLMs: https://ataraxy-labs.com/llms.txt
Semantic version control built on Git. Instead of lines changed, sem tells you what entities changed: functions, methods, classes.
Health score breakdown
6-dimension composite. See methodology for formula and weights.
Adoption signals
Real-world usage data, pulled from each registry. The bigger the numbers, the more battle-tested the project.
| Signal | Value | Source |
|---|---|---|
| GitHub stars | 2.0k | github.com/ataraxy-labs/sem |
| GitHub forks | 56 | github.com/ataraxy-labs/sem |
| CRATES downloads (last month) | 27 | sem |
Release & maintenance
Is this project actively maintained, or about to die? Check the recency of last commit and last release.
| Project age | 0.2 years | since Feb 2026 |
| Last commit | 3 days ago | May 4, 2026 |
| Releases shipped | 29 | last: 3 days ago |
Self-hosting cost across providers
Detected requirements: 4GB RAM, 40GB disk minimum. Cheapest plan per provider that meets the requirement.
| Provider | Plan | Specs | Monthly | |
|---|---|---|---|---|
| hetzner | CAX11 | 2c · 4GB · 40GB | $4.13 USD | Deploy → |
| vultr | VC2 | 1c · 1GB · 25GB | $5 USD | Deploy → |
| linode | Nanode 1GB | 1c · 1GB · 25GB | $5.12 USD | Deploy → |
| digitalocean | Basic Regular 1GB | 1c · 1GB · 25GB | $6 USD | Deploy → |
What people say on Hacker News
- Structural and semantic component for improving code reviews with local models
- Inspect – Semantic code review. Entity graphs + LLMs
- Sem – Semantic version control. Entity-level diffs on top of Git
- Sem – Semantic Diff behind the new viral merge algo Weave
- Weave, an entity-level semantic merge driver for Git
Ready to self-host Ataraxy labs Sem?
Spin up a hetzner CAX11 (4GB RAM, 40GB disk) for $4.13/mo and follow the project's official install docs.
Data last refreshed May 7, 2026.
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