Blog
News, essays, and engineering.
Product updates, deep engineering posts, and essays on the future of agentic software.
Featured · Release
XR 3.1 — the agentic runtime
Notes on the agentic runtime: the skill layer, the model router, and the security gate.
The XR Team July 8, 2026 6 min read
Engineering
Designing the XR skill graph
Skills are the primitive of agentic software. Here is how the manifest-governed skill layer is designed.
EngineeringRead
SecurityXR's capability-based security model
How we think about agent security, from sandboxing to human-in-the-loop confirmations, signed skills, and audit trails.
SecurityRead
TutorialLocal-first agents with Ollama
A guide to running XR entirely offline with open-weight models — no cloud, no telemetry, no keys.
DXRead