diff --git a/.claude/commands/lint.md b/.claude/commands/lint.md
index 8a64925..5a0fdcd 100644
--- a/.claude/commands/lint.md
+++ b/.claude/commands/lint.md
@@ -35,6 +35,15 @@ this.registerEvent(
 ```
 This removes `any` entirely; `unknown as SomeInterface` is fully type-safe.
 
+### `@typescript-eslint/no-unnecessary-type-assertion`
+A cast (`as T`) where TypeScript already knows the value has type `T`.
+
+**Common cause — `createEl` with a specific tag**: Obsidian's `createEl<K>(tag: K, ...)` returns `HTMLElementTagNameMap[K]`, so `createEl("input", ...)` already returns `HTMLInputElement`. Any subsequent `as HTMLInputElement` cast is redundant.
+
+**Common cause — ambient types not imported**: Using `as DomElementInfo` inline causes ESLint's `no-undef` to fire because the ambient type isn't an explicit import. Drop the cast entirely — `{ type: "checkbox" }` is assignable to `DomElementInfo` without a cast.
+
+**Fix**: Delete the redundant cast. If the type isn't narrow enough, use `as unknown as T` (two-step) rather than a direct `as T` — but prefer removing the cast entirely.
+
 ### `obsidianmd/ui/sentence-case`
 UI text must use sentence case: only the first word and proper nouns are capitalised.
 
@@ -43,6 +52,7 @@ UI text must use sentence case: only the first word and proper nouns are capital
   - `"← Pick icons"` → `"← pick icons"`
   - `"↩ Map mode"` → `"↩ map mode"`
 - Parenthetical range notation: `"(A → Z)"` → `"(a → z)"`
+- Mid-sentence acronyms (e.g. "Remove GM icon"): the rule flags consecutive capitals that are not the first word. Reword to move the acronym to the front, avoid it, or use the full term in lowercase: `"Remove icon"` or `"GM icon: remove"`.
 
 **Fix B — eslint-disable** for intentional special-case UI text that would look wrong if sentence-cased:
 - Short abbreviation labels: `"wt ↑"`, `"a→z"`, `"z→a"` — these are symbols/abbreviations, not sentences
diff --git a/.claude/commands/rebuild.md b/.claude/commands/rebuild.md
index 4ac748b..3dd3d03 100644
--- a/.claude/commands/rebuild.md
+++ b/.claude/commands/rebuild.md
@@ -1,5 +1,5 @@
 ---
-description: Build the duckmage plugin (type-check + bundle)
+description: Build the duckmage plugin (type-check + bundle + lint + tests)
 allowed-tools: Bash(npm:*)
 ---
 
@@ -15,7 +15,17 @@ Report the build result clearly:
 - If it succeeded, confirm that `main.js` was updated.
 - If it failed, show the full error output and identify the likely cause (TypeScript type error, missing import, syntax error, etc.).
 
-Then, regardless of build result, run the test suite:
+Then run the linter:
+
+```
+cd /mnt/c/Users/markr/Documents/KB/journal/.obsidian/plugins/duckmage-plugin && npm run lint 2>&1
+```
+
+Report the lint result clearly:
+- If there are no issues, confirm it is lint-clean.
+- If there are errors or warnings, list each one with file, line, rule name, and a brief description. Errors from the Obsidian reviewer are **required** fixes; address them before marking the task done.
+
+Then, regardless of build/lint result, run the test suite:
 
 ```
 cd /mnt/c/Users/markr/Documents/KB/journal/.obsidian/plugins/duckmage-plugin && npm test
diff --git a/manifest.json b/manifest.json
index 5162ab2..7bdbee4 100644
--- a/manifest.json
+++ b/manifest.json
@@ -1,7 +1,7 @@
 {
 	"id": "hexmaker",
 	"name": "Hexmap World Creator",
-	"version": "1.0.27",
+	"version": "1.0.28",
 	"minAppVersion": "1.12.0",
 	"description": "Create a hex map and a guidebook level wiki for your setting with minimal fuss. Hex crawl worldbuilding toolbox. System agnostic, ready for any TRPG you care to run in it.",
 	"author": "morkdev",
diff --git a/package-lock.json b/package-lock.json
index a9898ce..48ffd88 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "hexmaker-plugin",
-  "version": "1.0.27",
+  "version": "1.0.28",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "hexmaker-plugin",
-      "version": "1.0.27",
+      "version": "1.0.28",
       "license": "MIT",
       "dependencies": {
         "minisearch": "^7.2.0"
diff --git a/package.json b/package.json
index 6bcd913..2087797 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "hexmaker-plugin",
-  "version": "1.0.27",
+  "version": "1.0.28",
   "description": "A plugin to power hex crawl worldbuilding and running.",
   "main": "main.js",
   "scripts": {
diff --git a/src/HexmakerPlugin.ts b/src/HexmakerPlugin.ts
index e060971..ea01920 100644
--- a/src/HexmakerPlugin.ts
+++ b/src/HexmakerPlugin.ts
@@ -736,7 +736,7 @@ export default class HexmakerPlugin extends Plugin {
     let linked = 0;
     for (const file of hexFiles) {
       const cache = this.app.metadataCache.getFileCache(file);
-      const region = cache?.frontmatter?.["region"];
+      const region: unknown = cache?.frontmatter?.["region"];
       if (typeof region !== "string" || !region) continue;
       await this.syncHexRegionTableLink(file.path, region);
       linked++;
diff --git a/src/hex-map/HexEditorModal.ts b/src/hex-map/HexEditorModal.ts
index 11ffc6a..367bec7 100644
--- a/src/hex-map/HexEditorModal.ts
+++ b/src/hex-map/HexEditorModal.ts
@@ -512,7 +512,7 @@ export class HexEditorModal extends HexmakerModal {
       const clearGmBtn = gmRow.createEl("button", {
         text: "Clear",
         cls: "duckmage-clear-btn",
-        title: "Remove GM icon",
+        title: "Remove icon",
       });
       clearGmBtn.setCssProps({
         visibility: currentGmIcon ? "visible" : "hidden",
diff --git a/src/hex-map/HexMapView.ts b/src/hex-map/HexMapView.ts
index de12f21..3f1a332 100644
--- a/src/hex-map/HexMapView.ts
+++ b/src/hex-map/HexMapView.ts
@@ -2777,7 +2777,7 @@ export class HexMapView extends ItemView {
     const file = this.app.vault.getAbstractFileByPath(hexFilePath);
     if (!(file instanceof TFile)) return null;
     const cache = this.app.metadataCache.getFileCache(file);
-    const region = cache?.frontmatter?.["region"];
+    const region: unknown = cache?.frontmatter?.["region"];
     return typeof region === "string" ? region : null;
   }
 
diff --git a/src/hex-map/IconPickerModal.ts b/src/hex-map/IconPickerModal.ts
index f1a7c50..c5754ab 100644
--- a/src/hex-map/IconPickerModal.ts
+++ b/src/hex-map/IconPickerModal.ts
@@ -39,15 +39,15 @@ export class IconPickerModal extends HexmakerModal {
 
     // GM layer only toggle
     const gmRow = headerRight.createDiv({ cls: "duckmage-icon-gm-toggle-row" });
-    const gmCb = gmRow.createEl("input", { type: "checkbox" } as DomElementInfo);
-    (gmCb as HTMLInputElement).checked = this.gmOnly;
+    const gmCb = gmRow.createEl("input", { type: "checkbox" });
+    gmCb.checked = this.gmOnly;
     const gmLabel = gmRow.createSpan({ text: "GM layer only", cls: "duckmage-icon-gm-toggle-label" });
     const applyGm = () => {
-      this.gmOnly = (gmCb as HTMLInputElement).checked;
+      this.gmOnly = gmCb.checked;
     };
     gmCb.addEventListener("change", applyGm);
     gmLabel.addEventListener("click", () => {
-      (gmCb as HTMLInputElement).checked = !(gmCb as HTMLInputElement).checked;
+      gmCb.checked = !gmCb.checked;
       applyGm();
     });
 
diff --git a/versions.json b/versions.json
index 3120d0c..94e34df 100644
--- a/versions.json
+++ b/versions.json
@@ -16,5 +16,6 @@
 	"1.0.24": "1.12.0",
 	"1.0.25": "1.12.0",
 	"1.0.26": "1.12.0",
-	"1.0.27": "1.12.0"
+	"1.0.27": "1.12.0",
+	"1.0.28": "1.12.0"
 }
\ No newline at end of file