diff --git a/wasm-port/docs/compatibility-validation.md b/wasm-port/docs/compatibility-validation.md
index 98c5552..cee76a5 100644
--- a/wasm-port/docs/compatibility-validation.md
+++ b/wasm-port/docs/compatibility-validation.md
@@ -298,6 +298,9 @@ post-execute position parameters differently than the line-by-line MDI smoke.
 The same Node WASM and browser file-path smokes also cover the negative fixture
 group and check the LinuxCNC file-execution error text plus absent canonical
 motion constraints where applicable.
+`canon_runtime_edges` also pins the vendored interpreter's post-program
+modal, override, spindle, mist, and flood `_setup` state readback after the
+canonical runtime-edge calls complete.
 The Node WASM and browser interpreter smokes also cover LinuxCNC parameter-file
 restore/save behavior through the exported C ABI, including out-of-order file
 rejection, missing-file success, missing required numeric parameter defaulting,
@@ -525,9 +528,12 @@ numbered-parameter, local named-parameter plus `_ini[...]` lookup through
 tool-reload, tool select/change/length-offset, M61 current-tool-number update,
 canned-cycle, state-tag motion, tool-table setup, and O-word subroutine
 fixtures, plus threading/rigid tap, NURBS dispatch boundaries, and the
-comparable canonical runtime edge and program-end cleanup calls. The same
-upstream baseline also validates the current negative fixture error text and
-absent canonical-event constraints. Fixtures that depend on standalone-only runtime
+comparable canonical runtime edge and program-end cleanup calls. The
+standalone vendored-source harness, Node WASM smoke, and browser smoke also
+pin the `canon_runtime_edges` post-program modal, override, spindle, mist, and
+flood `_setup` state. The same upstream baseline also validates the current
+negative fixture error text and absent canonical-event constraints. Fixtures
+that depend on standalone-only runtime
 adapters, HAL state, upstream `rs274` output gaps such as
 `WAIT` or hidden NURBS control-point detail, or richer machine session state
 still need dedicated native LinuxCNC baselines.
diff --git a/wasm-port/docs/drift-report.md b/wasm-port/docs/drift-report.md
index 115e807..bb0ed8a 100644
--- a/wasm-port/docs/drift-report.md
+++ b/wasm-port/docs/drift-report.md
@@ -96,7 +96,10 @@ semantic rewrites:
   select/change/length-offset plus M61 current-tool-number update,
   canned-cycle, state-tag motion, tool-table setup, and O-word subroutine
   fixtures; it also covers threading/rigid tap, NURBS dispatch boundaries, and
-  comparable canonical runtime edge and program-end cleanup calls. It now also checks the negative fixture set
+  comparable canonical runtime edge and program-end cleanup calls. The
+  vendored-source native harness plus Node WASM and browser smokes also pin
+  the `canon_runtime_edges` post-program modal, override, spindle, mist, and
+  flood `_setup` state. It now also checks the negative fixture set
   against upstream `rs274 -g` for expected error text and absent canonical
   event constraints.
   HAL-backed adapter-heavy fixtures, standalone modal-state assertions, and upstream
diff --git a/wasm-port/tests/fixtures/canon/canon_runtime_edges.events b/wasm-port/tests/fixtures/canon/canon_runtime_edges.events
index 64bf2b7..439843b 100644
--- a/wasm-port/tests/fixtures/canon/canon_runtime_edges.events
+++ b/wasm-port/tests/fixtures/canon/canon_runtime_edges.events
@@ -31,3 +31,13 @@ canon_event=SET_FEED_RATE rate=0
 canon_event=STOP_SPINDLE_TURNING spindle=0
 canon_event=SET_SPINDLE_MODE spindle=0 css_max=0
 canon_event=PROGRAM_END
+post_execute.plane=1
+post_execute.distance_mode=0
+post_execute.feed_mode=0
+post_execute.motion_mode=10
+post_execute.origin_index=1
+post_execute.feed_override=1
+post_execute.speed_override_0=1
+post_execute.spindle_turning_0=1
+post_execute.mist=0
+post_execute.flood=0