diff --git a/wasm-port/docs/sim-config-coverage-promotion-analysis.md b/wasm-port/docs/sim-config-coverage-promotion-analysis.md
index d6f6e76..3c35fb0 100644
--- a/wasm-port/docs/sim-config-coverage-promotion-analysis.md
+++ b/wasm-port/docs/sim-config-coverage-promotion-analysis.md
@@ -51,6 +51,34 @@ motion feedback. It does not unlock rows whose defining behavior is Python
 remap runtime, tool database process protocol, external user-M process state,
 or upstream-invalid demo code.
 
+## Web Simulation Improvements From Virtual HAL
+
+Using the completed virtual HAL evidence improves the Web CNC simulation in
+these concrete ways:
+
+- Browser and Node simulation no longer need host `halcmd`, `halrun`, or a
+  native motion-controller process for HAL-level diagnostics.
+- UI workflows can inspect and update HAL pins, signals, and params through a
+  shared source-derived registry instead of private page state.
+- Simulation pages can run deterministic `halcmd`-style command fixtures such
+  as `setp`, `sets`, `newsig`, `net`, `show`, `getp`, `gets`, `loadrt`,
+  `loadusr`, `addf`, `start`, and `stop`.
+- Motion feedback can advance through servo-period stepping so dashboards can
+  display axis/joint target and feedback state without host realtime services.
+- Browser diagnostics artifacts can carry source compliance, sim-config source
+  coverage, command fixture, promotion candidate, macro/load fixture, and
+  manifest-backed motion matrix evidence in one release surface.
+- Release URL workflows can show the promotion candidate summary, including
+  8 diagnostics-ready candidates across 3 families and 17 source files.
+- OPFS/session workflows can persist and reload virtual HAL-backed diagnostics
+  evidence for repeatable browser validation.
+
+These improvements make the Web simulation more complete and inspectable for
+HAL/UI/machine-state cases. They are still evidence and simulation-surface
+improvements only: they do not implement Linux kernel hard realtime, native HAL
+module ABI loading, Python remap runtime, tool DB process protocol, external
+user-M process execution, or new JavaScript-owned CNC semantics.
+
 ## Promotion Rules After Virtual HAL
 
 A sim-config case can move forward only when all of these are true:
diff --git a/wasm-port/runtime/sdk/README.md b/wasm-port/runtime/sdk/README.md
index 798eb88..c21a690 100644
--- a/wasm-port/runtime/sdk/README.md
+++ b/wasm-port/runtime/sdk/README.md
@@ -390,6 +390,18 @@ realtime scheduling, external device drivers, native HAL module ABI behavior,
 HALUI process behavior, and Tcl/Python process integration remain explicit
 boundaries.
 
+In practical Web simulation terms, the completed virtual HAL evidence improves
+the system by making HAL/UI/machine-state diagnostics inspectable without host
+LinuxCNC processes. Browser and Node workflows can share one source-derived HAL
+pin/signal/param registry, execute deterministic `halcmd`-style command
+fixtures, advance motion feedback through servo-period stepping, persist
+virtual HAL diagnostics through OPFS/session artifacts, and expose release URL
+workflow evidence for 8 diagnostics-ready promotion candidates across 3
+families and 17 LinuxCNC source files. These are simulation and evidence
+surface improvements only; Python remap runtime, tool DB process protocol,
+external user-M execution, native HAL module ABI behavior, and JavaScript-owned
+CNC semantics remain outside this scope.
+
 ## Project release readiness export
 
 `createProjectReleaseGateManifest()` returns the required release gate IDs,
diff --git a/wasm-port/tests/docs/node/verify_sim_configs_coverage_docs.mjs b/wasm-port/tests/docs/node/verify_sim_configs_coverage_docs.mjs
index 970d5f4..17f800d 100644
--- a/wasm-port/tests/docs/node/verify_sim_configs_coverage_docs.mjs
+++ b/wasm-port/tests/docs/node/verify_sim_configs_coverage_docs.mjs
@@ -66,6 +66,10 @@ for (const phrase of [
   "axis/vismach/puma/puma_seam_weld.ngc",
   "axis/rose_engine/rcone_demo.ngc",
   "axis/external_offsets/queuebuster.ngc",
+  "Web Simulation Improvements From Virtual HAL",
+  "Browser and Node simulation no longer need host `halcmd`, `halrun`, or a",
+  "servo-period stepping",
+  "8 diagnostics-ready candidates across 3 families and 17 source files",
   "L4-PYTHON-REMAP",
   "L4-TOOL-DB",
   "L4-USER-M-PROCESS",