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open_scion

open_scion is an open-source source-control system designed for coding-agent workflows, implementing a server-centric design with normal Git repositories underneath. It provides server-side history and code search, compare-and-swap landing, agent-oriented review and security features, and optional conflict resolution through an LLM provider, deterministic tool, or no resolver.

What it does

Developers can use gitai to manage and land concurrent code changes from agents, CI jobs and other clients.

Availability
Version 0.4.0; quick start and build instructions provided
Pricing model
MIT licensed
Deployment
Run your own server; supports SQLite or PostgreSQL and file, S3, GCS or Azure object storage
Privacy
The server never calls a language model; AI features work with any provider, or none
Licence
MIT
Capability
agentsautomationsearch
Modality
codetext
Access
APISDKCLI
Deployment
on-premises
Pricing
open-source
Target user
developer

Evidence

6 claims
  • gitai provides server-side blame, path history, ancestry and code search. [1]
    | **Source control as an API**: history runs on the server | Blame, path history, ancestry and code search run server-side and are memoized as derived data, computed once per commit.
    GitHub new repositories. Quoted text is outside CC BY 4.0 and keeps its original rights.
  • Concurrent changes can be landed through batching and compare-and-swap updates without a merge queue. [1]
    | **Landing without a merge queue** | `UserLand` rebases a change onto the current tip and lands it with a compare-and-swap; concurrent lands on one branch are batched into a single reference update.
    GitHub new repositories. Quoted text is outside CC BY 4.0 and keeps its original rights.
  • Conflicting changes can be resolved by a user-selected LLM provider, deterministic tool, or no resolver. [1]
    | **Automatic conflict resolution** | A conflicting land is resolved by a resolver you choose (any LLM provider, a deterministic tool, or none) through a versioned, vendor-neutral protocol.
    GitHub new repositories. Quoted text is outside CC BY 4.0 and keeps its original rights.
  • The server can use SQLite or PostgreSQL and file, S3, GCS or Azure object storage. [1]
    | **Storage core: a database and object storage, stateless servers** | Each change is a changeset in a write-ahead log in SQLite or PostgreSQL, with a compare-and-swap per reference; packs live in object storage (file, S3, GCS, Azure).
    GitHub new repositories. Quoted text is outside CC BY 4.0 and keeps its original rights.
  • The repository identifies the current version as 0.4.0 and provides build and quick-start instructions.
  • In the stated 50-agent benchmark, gitai landed 200 of 250 changes with batching off the table for the comparison described as classic; with the configured deterministic resolver, all 250 changes landed.

Sources

1
1
GitHub new repositoriesOwner-controlled
https://github.com/feder-cr/open_scion Retrieved 2026-10-28 00:02 UTC
Verified

Versions

10
VersionEffectiveChangeChanged fieldsState
102026-10-25 01:09 UTCevidence updatescoreCurrent
92026-10-24 01:40 UTCmaterial changecapability, modality, access, availabilityCurrent
82026-10-23 01:22 UTCmaterial changemodality, deployment, pricing, availability, privacyCurrent
72026-10-22 00:40 UTCevidence updatescoreCurrent
62026-10-20 17:54 UTCmaterial changemodality, access, deployment, pricing, availability, deployment, privacyCurrent
52026-10-19 18:49 UTCmaterial changecapability, access, deployment, pricing, availability, deploymentCurrent
42026-10-18 19:48 UTCevidence updatescoreCurrent
32026-10-17 20:39 UTCmaterial changeaccess, deployment, pricing, deploymentCurrent
22026-10-16 21:35 UTCmaterial changeaccess, pricing, pricing model, deploymentCurrent
12026-10-15 22:34 UTCpublicationNoneCurrent

In briefs

1

Open in the catalog

Original catalog content is licensed under CC BY 4.0, attributed to wowsuchai. Source quotations and linked content keep their original rights.