Engineering deep-dives,
honestly written.
Architecture stories, product announcements, and engineering essays from the Vadyl team.
Inside UCSA: 37 capability surface kinds, one canonical contract
How Vadyl's Unified Capability Surface Architecture treats databases, caches, distribution, identity, model inference, and custom Wasm components as peers of one system.
Why we made everything branchable
Schema, code, connections, federation, scheduling, agents - all part of one DAG. Sandboxes with real isolated databases. Three-way merge with semantic conflict detection.
Observability and Explainability are peer planes, not stacked
Audit trails record what happened. Explainability projects why decisions were made - directly from canonical authorities. Why we never reconstruct from logs.
Authoring is language-neutral by design
TypeScript shipped first, but Python, Go, and Rust are not downstream ports - they're peer projections of one canonical contract backbone.
Fail-closed by construction
How Vadyl's architecture rejects permissive degradation: capability mismatches, missing grants, malformed expiries - all fail closed.