The load-time range check rejects a maxWallMs above Node's maximum setTimeout delay, but the constraint appeared only in the README design section. Deployments reading the Config field JSDoc, the generated config catalog, or the README config summary saw maxWallMs described as a positive finite wall-clock ceiling, so an out-of-range value looked valid until plugin load failed.
code-runtime/ — code-execution capability family
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The code-execution capability seam (see capability seams): an abstract runtime interface for executing one model-written program against host-provided async bindings, capturing what it printed and returned. The consumer is the tool registry's Code Mode (tools: { mode: code } — the run_code tool and the generated TypeScript SDK); design in the Code Mode Agent Note. Product packages.
| Package | Role | ctx key |
|---|---|---|
code-runtime/ |
Abstract code-execution seam (interface + vocabulary) | ctx.codeRuntime |
code-runtime-worker/ |
Worker-thread backend: fresh worker per run, TypeScript via host-side type-strip (annotations advisory, never type-checked), port-bridged bindings, budget/heap containment | registers ctx.codeRuntime |
The interface lives at code-runtime/code-runtime/; the shipped backend at code-runtime/code-runtime-worker/. Backends differ by execution substrate (worker thread, process, container) and by source language — both readonly descriptors on the service — and register ctx.codeRuntime without touching the interface or its consumer; that split is what makes a hardened backend a drop-in later.