Source control for the agent era.
Understand Scion. Inspect OpenScion. Measure what matters.
Clear explanations, source-checked implementation notes, and practical experiments for developers building with AI agents.
What is Scion? A guide to three different projects
Understand Anthropic’s internal source control system, the independent OpenScion implementation, and Google’s unrelated agent orchestration project.
OpenScion status: what v0.2.1 actually implements
A revision-pinned review of OpenScion’s working CLI, in-memory storage, HTTP routes, roadmap, and local smoke-test boundaries.
How to evaluate agent checkout performance
A reproducible comparison plan covering optimized Git, cache states, correctness, tail latency, and total service cost.
Latest field notes
Browse all guidesWhat is Scion? A guide to three different projects
Foundations
OpenScion status: what v0.2.1 actually implements
Implementation
Scion vs Git: compare the workload before the architecture
Foundations
Sparse checkout vs partial clone: use both deliberately
Implementation
Content-addressed source control: objects, trees, and moving refs
Foundations
How to evaluate agent checkout performance
Benchmarks
Can OpenScion be a hosted service? The readiness checklist
Operations
Start with the workload, then choose the tool.
A new source-control architecture is interesting. A measured improvement in your own workflow is useful.
Explore the benchmark methodology