diff --git a/packages/code-runtime/README.md b/packages/code-runtime/README.md
index a4ab8956be..2c18ef43cf 100644
--- a/packages/code-runtime/README.md
+++ b/packages/code-runtime/README.md
@@ -5,6 +5,6 @@ The code-execution capability seam (see [capability seams](../../docs/rfc/implem
 | Package | Role | ctx key |
 |---|---|---|
 | `code-runtime/` | Abstract code-execution seam (interface + vocabulary) | `ctx.codeRuntime` |
-| [`code-runtime-worker/`](code-runtime-worker/README.md) | Worker-thread backend: fresh worker per run, TypeScript via host-side type-strip, port-bridged bindings, budget/heap containment | registers `ctx.codeRuntime` |
+| [`code-runtime-worker/`](code-runtime-worker/README.md) | 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.