Jev DevTools 0.4.0

Jev DevTools 0.4.0 expands the flow API and inspector with function tasks, runtime request factories, bounded collections, returning conditionals, numeric comparisons, and stateful loops.

Highlights

• Build flows with flow.map(), flow.if(), flow.loop(), and server function tasks; inspect collection items, loop iterations, and structured results inline.
• Explore six sample cookbooks for RAG passages, skill suggestion, SDE cascades, hierarchical classification, simple memory, and structure recovery. These apps and fixtures are repository examples, not part of the npm package.
• Use updated React/Next.js setup documentation and the bundled setup skill with version-matched flow guidance.
• Run the package and Next.js verification scripts on Windows.

Compatibility and upgrade

Install the SDK explicitly; it is now a peer dependency:

npm install jev-devtools@0.4.0 @typesafe-ai/sdk@0.7

Existing React mounting and static Jev requests remain supported. Upgrade the server and drawer together for the new flow records. The supported SDK range is >=0.7.0 <0.8.0.

Node middleware without authorize now accepts loopback connections only. Network-accessible, Docker, or proxy setups may need application authorization. Web Request servers must bind to 127.0.0.1 or configure authorize.

Flows remain experimental and in-process, without durable execution, automatic retries, or rollback.

Publication

The npm package was published on October 24, 2026 at 07:41:04 UTC from commit bc7f1609a6e94bf8fd9be4351db6983e8d0442ea. This GitHub release records that existing publication; it does not republish npm or include later changes on main.

npm package · 0.4.0 changelog · Release preparation #34 · Publication verification