kubestellar-prow · Oct 26, 2026 · Oct 26, 2026
diff --git a/changelog.d/fixed-ui-reserved-blanks.md b/changelog.d/fixed-ui-reserved-blanks.md
@@ -0,0 +1 @@
+Show CLI reserved switch name errors in the builder preview and reset the generated command until the blank is renamed. (#347)
diff --git a/dist/ui-bootstrap.test.js b/dist/ui-bootstrap.test.js
diff --git a/dist/ui-bootstrap.test.js.map b/dist/ui-bootstrap.test.js.map
diff --git a/dist/ui-builder.test.js b/dist/ui-builder.test.js
diff --git a/dist/ui-builder.test.js.map b/dist/ui-builder.test.js.map
diff --git a/dist/ui-command-quoting.test.js b/dist/ui-command-quoting.test.js
diff --git a/dist/ui-command-quoting.test.js.map b/dist/ui-command-quoting.test.js.map
diff --git a/dist/ui-interactions.test.js b/dist/ui-interactions.test.js
diff --git a/dist/ui-interactions.test.js.map b/dist/ui-interactions.test.js.map
diff --git a/dist/ui.html b/dist/ui.html
@@ -661,6 +661,7 @@
 // browser-only concerns (no glob/file access, HTML escaping) with no CLI
 // counterpart to drift from.
 import { parseVars, expand as sharedExpand, VAR_PATTERN } from './parser.js';
+import { assertNoReservedVars } from './flags.js';
 import { cartesian as sharedCartesian, zip as sharedZip } from './iterate.js';
 
 (function () {
@@ -857,6 +858,7 @@
 
     const results = [];
     try {
+      assertNoReservedVars(parseVars(text));
       for (const combo of combos) {
         const vals = Object.assign(Object.create(null), scalarValues);
         arrayVars.forEach((v, i) => { vals[v.name] = combo[i]; });

diff --git a/dist/ui.js b/dist/ui.js
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1 @@
		Show CLI reserved switch name errors in the builder preview and reset the generated command until the blank is renamed. (#347)