diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index d974dd33..336d7f25 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -37,6 +37,9 @@ jobs:
       - name: Typecheck
         run: pnpm typecheck
 
+      - name: Integrity
+        run: pnpm integrity
+
       - name: Build extension
         run: pnpm build
 
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index da7e324b..6ff5f237 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -34,6 +34,9 @@ jobs:
       - name: Typecheck
         run: pnpm typecheck
 
+      - name: Integrity
+        run: pnpm integrity
+
       - name: Build extension
         run: pnpm build
 
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index de4bc944..fd048e94 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -41,6 +41,7 @@ We provide a set of npm scripts to make development and contribution easier:
 | `build` | Builds the extension and themes to `dist`. |
 | `catwalk` | Generates the main preview (requires `catwalk`). |
 | `icons` | CLI to optimize/generate icons and icon previews. |
+| `integrity` | Ensures all default associations refer to existing icons. |
 | `pack` | Generates VSIX extension file. |
 
 ### Notes
diff --git a/package.json b/package.json
index ba7cafe9..9ebd5d6b 100644
--- a/package.json
+++ b/package.json
@@ -120,6 +120,7 @@
     "build": "tsx scripts/build.ts",
     "catwalk": "tsx scripts/catwalk.ts",
     "icons": "tsx scripts/icons.ts",
+    "integrity": "tsx scripts/integrity.ts",
     "lint": "eslint .",
     "lint:fix": "eslint . --fix",
     "pack": "vsce package --no-dependencies",
diff --git a/scripts/build.ts b/scripts/build.ts
index 36509f6a..250e6034 100644
--- a/scripts/build.ts
+++ b/scripts/build.ts
@@ -1,3 +1,7 @@
+/**
+ * Build themes and extension.
+ */
+
 import { cp, readdir, writeFile } from 'node:fs/promises'
 import { basename, join } from 'node:path'
 import { exit } from 'node:process'
diff --git a/scripts/catwalk.ts b/scripts/catwalk.ts
index 6f1ff00f..6d6f3013 100644
--- a/scripts/catwalk.ts
+++ b/scripts/catwalk.ts
@@ -1,3 +1,7 @@
+/**
+ * Generate main preview using Catwalk.
+ */
+
 import { exec } from 'node:child_process'
 import { readdir, writeFile } from 'node:fs/promises'
 import { join, resolve } from 'node:path'
diff --git a/scripts/icons.ts b/scripts/icons.ts
index 95a8a7e7..01212d85 100644
--- a/scripts/icons.ts
+++ b/scripts/icons.ts
@@ -1,3 +1,7 @@
+/**
+ * CLI for icon SVG file manipulation.
+ */
+
 import { readFileSync, readdirSync, writeFileSync } from 'node:fs'
 import { readFile, readdir, writeFile } from 'node:fs/promises'
 import { join, resolve } from 'node:path'
diff --git a/scripts/integrity.ts b/scripts/integrity.ts
new file mode 100644
index 00000000..6bad9a1c
--- /dev/null
+++ b/scripts/integrity.ts
@@ -0,0 +1,44 @@
+/**
+ * Ensure all default associations refer to existing icons.
+ */
+
+import { readdir } from 'node:fs/promises'
+import { basename, join, resolve } from 'node:path'
+import { exit } from 'node:process'
+import { consola } from 'consola'
+import { fileIcons } from '~/defaults/fileIcons'
+import { folderIcons } from '~/defaults/folderIcons'
+
+let exitCode = 0
+
+const ICONS = 'icons'
+const flavors = await readdir(resolve(ICONS))
+
+consola.info('Running integrity check...')
+
+await Promise.all(flavors.map(async (f) => {
+  const icons = await readdir(resolve(join(ICONS, f)))
+
+  Object.keys(fileIcons).forEach((fi) => {
+    if (!icons.some(i => basename(i, '.svg') === fi)) {
+      consola.error(`Missing ${f} icon for ${fi}`)
+      exitCode++
+    }
+  })
+
+  Object.keys(folderIcons).forEach((fi) => {
+    if (!icons.some(i => basename(i, '.svg') === `folder_${fi}`)) {
+      consola.error(`Missing ${f} folder icon for ${fi}`)
+      exitCode++
+    }
+    if (!icons.some(i => basename(i, '.svg') === `folder_${fi}_open`)) {
+      consola.error(`Missing ${f} open folder icon for ${fi}`)
+      exitCode++
+    }
+  })
+}))
+
+if (exitCode === 0)
+  consola.success('Integrity check passed.')
+
+exit(exitCode)
diff --git a/src/defaults/fileIcons.ts b/src/defaults/fileIcons.ts
index 5d84f4f3..da9428f3 100644
--- a/src/defaults/fileIcons.ts
+++ b/src/defaults/fileIcons.ts
@@ -2607,4 +2607,4 @@ const { languageIds, fileExtensions, fileNames } = Object.entries(fileIcons).red
   },
 )
 
-export { languageIds, fileExtensions, fileNames }
+export { languageIds, fileExtensions, fileNames, fileIcons }
diff --git a/src/defaults/folderIcons.ts b/src/defaults/folderIcons.ts
index 0e8a8cb2..cb08601c 100644
--- a/src/defaults/folderIcons.ts
+++ b/src/defaults/folderIcons.ts
@@ -652,4 +652,4 @@ const { folderNames } = Object.entries(folderIcons).reduce(
   },
 )
 
-export { folderNames }
+export { folderNames, folderIcons }