diff --git a/docs/release-workflow.md b/docs/release-workflow.md
index 06ccc471b0..68a0dc05d2 100644
--- a/docs/release-workflow.md
+++ b/docs/release-workflow.md
@@ -94,6 +94,14 @@ flowchart LR
       #2959 bumped an `apps/docs` dependency and cut 1.0.4.
   - A **`workflow_dispatch` run always publishes.** That is the escape hatch
     when a docs-only change has to go out as a release anyway.
+- **Tests and stories stay out of `dist/types`.** Every release build shares
+  `publishedDtsOptions` from `packages/core`, whose `exclude` keeps
+  `*.stories.*`, `*.test.*`, `src/tests/**` and `e2e/**` out of the declaration
+  emit; before that, 196 of `@mittwald/flow-remote-react-components@1.1.10`'s
+  799 tarball entries were `dist/types/tests/**`, and no `exports` path reached
+  them. A story's helper still ships (`Button/stories/lib.tsx`), because
+  `dev/createDocPropertiesJson.ts` parses every `.tsx` under `src/` and ignores
+  only `*.stories.tsx`.
 - **The build runs after the version bump.** Both publish workflows version
   first, then `pnpm build`, then publish. Some bundles bake their own version in
   at build time (vite `define` over `package.json` — `remote-react-components`'
diff --git a/packages/components/vite.build.config.ts b/packages/components/vite.build.config.ts
index 1cbb54e97e..b2b4f9488d 100644
--- a/packages/components/vite.build.config.ts
+++ b/packages/components/vite.build.config.ts
@@ -5,7 +5,7 @@ import { defineConfig, mergeConfig } from "vite";
 import { flowComponentsLayerPlugin } from "./dev/vite/flowComponentsLayerPlugin.ts";
 import { layerOrderPlugin } from "./dev/vite/layerOrderPlugin.ts";
 import { stylesheetVariantsPlugin } from "./dev/vite/stylesheetVariantsPlugin.ts";
-import { preserveUseClientBanner } from "../core";
+import { preserveUseClientBanner, publishedDtsOptions } from "../core";
 
 export default mergeConfig(
   baseConfig,
@@ -65,10 +65,7 @@ export default mergeConfig(
       externalizeDeps({
         except: ["@mittwald/flow-design-tokens/**/*", "@mittwald/flow-core"],
       }),
-      dts({
-        include: ["src"],
-        outDirs: "dist/types",
-      }),
+      dts(publishedDtsOptions),
     ],
   }),
 );
diff --git a/packages/core/src/index.ts b/packages/core/src/index.ts
index c59cec4d27..b48e6d4b3e 100644
--- a/packages/core/src/index.ts
+++ b/packages/core/src/index.ts
@@ -1,2 +1,3 @@
 export * from "./preserveUseClientBanner";
+export * from "./publishedDtsOptions";
 export * from "./vitestBrowserTestConfig";
diff --git a/packages/core/src/publishedDtsOptions.ts b/packages/core/src/publishedDtsOptions.ts
new file mode 100644
index 0000000000..6cf1c2e2cc
--- /dev/null
+++ b/packages/core/src/publishedDtsOptions.ts
@@ -0,0 +1,37 @@
+/**
+ * The `unplugin-dts` options every package's release build shares.
+ *
+ * `include: ["src"]` alone emits declarations for ALL of `src` — stories and
+ * tests with it. Those are dead files: no `exports` path reaches them, nothing
+ * imports them, and they made up 196 of the 799 entries in
+ * `@mittwald/flow-remote-react-components@1.1.10` (#3023). `exclude` keeps them
+ * out, which also lets the release-relevance guard skip a test-only change
+ * honestly instead of arguing about tarball membership
+ * (`.github/scripts/release-relevance-lib.mjs`).
+ *
+ * The globs match story and test FILES, not the directories around them. A
+ * helper beside a story stays: `dev/createDocPropertiesJson.ts` parses every
+ * `.tsx` under `src/` and ignores only `*.stories.tsx`, so
+ * `components/Button/stories/lib.tsx` really does contribute to the published
+ * `dist/assets/doc-properties.json` — five of its entries. Keep this list and
+ * the guard's denylist in step; they answer the same question.
+ *
+ * The globs cannot move into the shared tsconfig preset instead: its `exclude`
+ * governs `tsc --noEmit` too, and dropping tests from `test:compile` would stop
+ * type-checking the largest surface in the repository.
+ *
+ * `exclude` REPLACES the tsconfig's own list rather than extending it, so
+ * `node_modules` and `dist` are repeated here.
+ */
+export const publishedDtsOptions = {
+  include: ["src"],
+  exclude: [
+    "node_modules/**",
+    "dist/**",
+    "**/tests/**",
+    "**/e2e/**",
+    "**/*.stories.*",
+    "**/*.test.*",
+  ],
+  outDirs: "dist/types",
+};
diff --git a/packages/ext-bridge/package.json b/packages/ext-bridge/package.json
index 23e19feb31..b3792baffd 100644
--- a/packages/ext-bridge/package.json
+++ b/packages/ext-bridge/package.json
@@ -47,6 +47,7 @@
     "zod": "^4.4.3"
   },
   "devDependencies": {
+    "@mittwald/flow-core": "workspace:*",
     "@mittwald/typescript-config": "workspace:*",
     "@types/node": "^25.9.3",
     "@types/react": "^19.2",
diff --git a/packages/ext-bridge/vite.build.config.ts b/packages/ext-bridge/vite.build.config.ts
index ffa65ab709..ff9aa7d523 100644
--- a/packages/ext-bridge/vite.build.config.ts
+++ b/packages/ext-bridge/vite.build.config.ts
@@ -3,6 +3,7 @@ import { defineConfig, mergeConfig } from "vite";
 import dts from "unplugin-dts/vite";
 import { externalizeDeps } from "vite-plugin-externalize-deps";
 import baseConfig from "./vite.config";
+import { publishedDtsOptions } from "../core";
 
 export default mergeConfig(
   baseConfig,
@@ -10,10 +11,7 @@ export default mergeConfig(
     plugins: [
       preserveDirectives(),
       externalizeDeps(),
-      dts({
-        include: ["src"],
-        outDirs: "dist/types",
-      }),
+      dts(publishedDtsOptions),
     ],
     build: {
       minify: false,
diff --git a/packages/mstudio-ext-react-components/vite.build.config.ts b/packages/mstudio-ext-react-components/vite.build.config.ts
index d86dc90e70..ec87f74541 100644
--- a/packages/mstudio-ext-react-components/vite.build.config.ts
+++ b/packages/mstudio-ext-react-components/vite.build.config.ts
@@ -1,7 +1,7 @@
 import preserveDirectives from "rollup-preserve-directives";
 import { defineConfig, mergeConfig } from "vite";
 import dts from "unplugin-dts/vite";
-import { preserveUseClientBanner } from "../core";
+import { preserveUseClientBanner, publishedDtsOptions } from "../core";
 import { externalizeDeps } from "vite-plugin-externalize-deps";
 import baseConfig from "./vite.config";
 
@@ -32,10 +32,7 @@ export default mergeConfig(
     plugins: [
       preserveDirectives(),
       externalizeDeps(),
-      dts({
-        include: ["src"],
-        outDirs: "dist/types",
-      }),
+      dts(publishedDtsOptions),
     ],
   }),
 );
diff --git a/packages/react-tunnel/vite.build.config.ts b/packages/react-tunnel/vite.build.config.ts
index ea9fa480b7..5eaf9ba7f0 100644
--- a/packages/react-tunnel/vite.build.config.ts
+++ b/packages/react-tunnel/vite.build.config.ts
@@ -1,18 +1,12 @@
 import { defineConfig, mergeConfig } from "vite";
-import { preserveUseClientBanner } from "../core";
+import { preserveUseClientBanner, publishedDtsOptions } from "../core";
 import dts from "unplugin-dts/vite";
 import baseConfig from "./vite.config";
 import { externalizeDeps } from "vite-plugin-externalize-deps";
 
 export default defineConfig(
   mergeConfig(baseConfig, {
-    plugins: [
-      externalizeDeps(),
-      dts({
-        include: ["src"],
-        outDirs: "dist/types",
-      }),
-    ],
+    plugins: [externalizeDeps(), dts(publishedDtsOptions)],
     build: {
       emptyOutDir: false,
       lib: {
diff --git a/packages/remote-core/package.json b/packages/remote-core/package.json
index 807048d678..35e64e26cc 100644
--- a/packages/remote-core/package.json
+++ b/packages/remote-core/package.json
@@ -36,6 +36,7 @@
   },
   "devDependencies": {
     "@mittwald/ext-bridge": "workspace:*",
+    "@mittwald/flow-core": "workspace:*",
     "@mittwald/flow-react-components": "workspace:*",
     "@mittwald/typescript-config": "workspace:*",
     "@types/node": "^25.9.3",
diff --git a/packages/remote-core/vite.build.config.ts b/packages/remote-core/vite.build.config.ts
index faefd8cad9..6bc9c90bfd 100644
--- a/packages/remote-core/vite.build.config.ts
+++ b/packages/remote-core/vite.build.config.ts
@@ -3,6 +3,7 @@ import { defineConfig, mergeConfig } from "vite";
 import dts from "unplugin-dts/vite";
 import { externalizeDeps } from "vite-plugin-externalize-deps";
 import baseConfig from "./vite.config";
+import { publishedDtsOptions } from "../core";
 
 export default mergeConfig(
   baseConfig,
@@ -12,10 +13,7 @@ export default mergeConfig(
       externalizeDeps({
         except: ["@quilted/threads"],
       }),
-      dts({
-        include: ["src"],
-        outDirs: "dist/types",
-      }),
+      dts(publishedDtsOptions),
     ],
 
     build: {
diff --git a/packages/remote-elements/package.json b/packages/remote-elements/package.json
index c0eea77c67..d2376d045b 100644
--- a/packages/remote-elements/package.json
+++ b/packages/remote-elements/package.json
@@ -32,6 +32,7 @@
     "type-fest": "^5.7.0"
   },
   "devDependencies": {
+    "@mittwald/flow-core": "workspace:*",
     "@mittwald/flow-react-components": "workspace:*",
     "@mittwald/typescript-config": "workspace:*",
     "@types/node": "^25.9.3",
diff --git a/packages/remote-elements/vite.build.config.ts b/packages/remote-elements/vite.build.config.ts
index 4f30a09ac9..9b9c19bbff 100644
--- a/packages/remote-elements/vite.build.config.ts
+++ b/packages/remote-elements/vite.build.config.ts
@@ -3,6 +3,7 @@ import { defineConfig, mergeConfig } from "vite";
 import dts from "unplugin-dts/vite";
 import { externalizeDeps } from "vite-plugin-externalize-deps";
 import baseConfig from "./vite.config";
+import { publishedDtsOptions } from "../core";
 
 export default mergeConfig(
   baseConfig,
@@ -10,10 +11,7 @@ export default mergeConfig(
     plugins: [
       preserveDirectives(),
       externalizeDeps(),
-      dts({
-        include: ["src"],
-        outDirs: "dist/types",
-      }),
+      dts(publishedDtsOptions),
     ],
     build: {
       minify: false,
diff --git a/packages/remote-react-components/vite.build.config.ts b/packages/remote-react-components/vite.build.config.ts
index 1cff480ee2..937cdb768f 100644
--- a/packages/remote-react-components/vite.build.config.ts
+++ b/packages/remote-react-components/vite.build.config.ts
@@ -1,6 +1,6 @@
 import preserveDirectives from "rollup-preserve-directives";
 import { mergeConfig } from "vite";
-import { preserveUseClientBanner } from "../core";
+import { preserveUseClientBanner, publishedDtsOptions } from "../core";
 import dts from "unplugin-dts/vite";
 import { externalizeDeps } from "vite-plugin-externalize-deps";
 import baseConfig from "./vite.config";
@@ -29,12 +29,5 @@ export default mergeConfig(baseConfig, {
       },
     },
   },
-  plugins: [
-    preserveDirectives(),
-    externalizeDeps(),
-    dts({
-      include: ["src"],
-      outDirs: "dist/types",
-    }),
-  ],
+  plugins: [preserveDirectives(), externalizeDeps(), dts(publishedDtsOptions)],
 });
diff --git a/packages/remote-react-renderer/vite.build.config.ts b/packages/remote-react-renderer/vite.build.config.ts
index 7c84dc8947..dcd6d4193e 100644
--- a/packages/remote-react-renderer/vite.build.config.ts
+++ b/packages/remote-react-renderer/vite.build.config.ts
@@ -1,6 +1,6 @@
 import preserveDirectives from "rollup-preserve-directives";
 import { defineConfig, mergeConfig } from "vite";
-import { preserveUseClientBanner } from "../core";
+import { preserveUseClientBanner, publishedDtsOptions } from "../core";
 import dts from "unplugin-dts/vite";
 import { externalizeDeps } from "vite-plugin-externalize-deps";
 import baseConfig from "./vite.config";
@@ -13,10 +13,7 @@ export default mergeConfig(
       externalizeDeps({
         except: [/^@mittwald\/remote-dom-react(?:\/.+)?$/],
       }),
-      dts({
-        include: ["src"],
-        outDirs: "dist/types",
-      }),
+      dts(publishedDtsOptions),
     ],
     build: {
       minify: false,
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index f79974859e..65c3b9e29a 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -852,6 +852,9 @@ importers:
         specifier: ^4.4.3
         version: 4.4.3
     devDependencies:
+      '@mittwald/flow-core':
+        specifier: workspace:*
+        version: link:../core
       '@mittwald/typescript-config':
         specifier: workspace:*
         version: link:../typescript-config
@@ -1100,6 +1103,9 @@ importers:
       '@mittwald/ext-bridge':
         specifier: workspace:*
         version: link:../ext-bridge
+      '@mittwald/flow-core':
+        specifier: workspace:*
+        version: link:../core
       '@mittwald/flow-react-components':
         specifier: workspace:*
         version: link:../components
@@ -1146,6 +1152,9 @@ importers:
         specifier: ^5.7.0
         version: 5.8.0
     devDependencies:
+      '@mittwald/flow-core':
+        specifier: workspace:*
+        version: link:../core
       '@mittwald/flow-react-components':
         specifier: workspace:*
         version: link:../components