diff --git a/.oxfmtrc.json b/.oxfmtrc.json
index fa3458fee14e..69973902038b 100644
--- a/.oxfmtrc.json
+++ b/.oxfmtrc.json
@@ -30,6 +30,7 @@
     "code/lib/codemod/src/transforms/__testfixtures__",
     "code/frameworks/angular/template/**",
     "code/lib/eslint-plugin",
+    "docs/versions/*.json",
     ".prettierrc",
     "test-storybooks",
     "*.yml",
diff --git a/CHANGELOG.md b/CHANGELOG.md
index bebcb8ad665f..90932989236e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,10 @@
+## 10.3.5
+
+- Core: Disable component manifest by default - [#34408](https://github.com/storybookjs/storybook/pull/34408), thanks @yannbf!
+
+> [!NOTE]
+> [Version >=0.5.0 of `@storybook/addon-mcp`](https://github.com/storybookjs/mcp/releases/tag/%40storybook%2Faddon-mcp%400.5.0) enables component manifests again. If you're upgrading Storybook from version >= 10.3.0 to >= 10.3.5 and are using the MCP addon, you should also upgrade `@storybook/addon-mcp` to keep the docs toolset in the MCP server.
+
 ## 10.3.4
 
 - Addon-a11y: Clear status transition timer on unmount to prevent test flake - [#34203](https://github.com/storybookjs/storybook/pull/34203), thanks @mixelburg!
diff --git a/code/addons/docs/docs/props-tables.md b/code/addons/docs/docs/props-tables.md
index 8fd7d0fe07bc..cf01c8c0ecba 100644
--- a/code/addons/docs/docs/props-tables.md
+++ b/code/addons/docs/docs/props-tables.md
@@ -90,7 +90,7 @@ Props tables are automatically inferred from your components and stories, but so
 
 Props tables are rendered from an internal data structure called `ArgTypes`. When you declare a story's `component` metadata, Docs automatically extracts `ArgTypes` based on the component's properties.
 
-You can can customize what's shown in the props table by [customizing the `ArgTypes` data](#customizing-argtypes). This is currently available for `DocsPage` and `<ArgsTable story="xxx">` construct, but not for the `<ArgsTable of={component} />` construct,
+You can customize what's shown in the props table by [customizing the `ArgTypes` data](#customizing-argtypes). This is currently available for `DocsPage` and `<ArgsTable story="xxx">` construct, but not for the `<ArgsTable of={component} />` construct,
 
 ### Customizing ArgTypes
 
diff --git a/code/core/src/core-server/presets/common-preset.ts b/code/core/src/core-server/presets/common-preset.ts
index c3479f2e42b1..6ec5a6a20343 100644
--- a/code/core/src/core-server/presets/common-preset.ts
+++ b/code/core/src/core-server/presets/common-preset.ts
@@ -216,7 +216,7 @@ export const features: PresetProperty<'features'> = async (existing) => ({
   outline: true,
   measure: true,
   sidebarOnboardingChecklist: true,
-  componentsManifest: true,
+  componentsManifest: false,
 });
 
 export const csfIndexer: Indexer = {
diff --git a/code/core/src/csf-tools/README.md b/code/core/src/csf-tools/README.md
index 220294de2b92..064ce3c717ad 100644
--- a/code/core/src/csf-tools/README.md
+++ b/code/core/src/csf-tools/README.md
@@ -6,7 +6,7 @@ An experimental library to read, analyze, transform, and write CSF programmatica
 - Analyze - Extract its metadata & stories based on the Babel AST
 - Write - Write the AST back to a file
 
-It can can parse MDX into CSF.
+It can parse MDX into CSF.
 
 Coming soon:
 
diff --git a/code/core/src/shared/universal-store/index.ts b/code/core/src/shared/universal-store/index.ts
index 37a8ebef9697..216fbefbb1f0 100644
--- a/code/core/src/shared/universal-store/index.ts
+++ b/code/core/src/shared/universal-store/index.ts
@@ -216,7 +216,7 @@ export class UniversalStore<
   /**
    * The syncing construct is used to keep track of if the instance's state has been synced with the
    * other instances. A leader will immediately have the promise resolved. A follower will initially
-   * be in a PENDING state, and resolve the the leader has sent the existing state, or reject if no
+   * be in a PENDING state, and resolve when the leader has sent the existing state, or reject if no
    * leader has responded before the timeout.
    */
   private syncing?: {
diff --git a/code/core/src/types/modules/core-common.ts b/code/core/src/types/modules/core-common.ts
index cc399717e7d2..75b35132d159 100644
--- a/code/core/src/types/modules/core-common.ts
+++ b/code/core/src/types/modules/core-common.ts
@@ -510,7 +510,7 @@ export interface StorybookConfigRaw {
     /**
      * Enable component manifest generation for MCP and other tooling integrations.
      *
-     * @default true
+     * @default false
      */
     componentsManifest?: boolean;
 
diff --git a/code/package.json b/code/package.json
index bc07e8859d9f..66f0028ef808 100644
--- a/code/package.json
+++ b/code/package.json
@@ -195,5 +195,6 @@
         "Dependency Upgrades"
       ]
     ]
-  }
+  },
+  "deferredNextVersion": "10.3.5"
 }
diff --git a/docs/_snippets/main-config-features-components-manifest.md b/docs/_snippets/main-config-features-components-manifest.md
index 367608c2e165..f289426aa358 100644
--- a/docs/_snippets/main-config-features-components-manifest.md
+++ b/docs/_snippets/main-config-features-components-manifest.md
@@ -4,7 +4,7 @@ export default {
   framework: '@storybook/your-framework',
   stories: ['../src/**/*.mdx', '../src/**/*.stories.@(js|jsx|mjs|ts|tsx)'],
   features: {
-    componentsManifest: false,
+    componentsManifest: true,
   },
 };
 ```
@@ -17,7 +17,7 @@ const config: StorybookConfig = {
   framework: '@storybook/your-framework',
   stories: ['../src/**/*.mdx', '../src/**/*.stories.@(js|jsx|mjs|ts|tsx)'],
   features: {
-    componentsManifest: false,
+    componentsManifest: true,
   },
 };
 
@@ -32,7 +32,7 @@ export default defineMain({
   framework: '@storybook/your-framework',
   stories: ['../src/**/*.mdx', '../src/**/*.stories.@(js|jsx|mjs|ts|tsx)'],
   features: {
-    componentsManifest: false,
+    componentsManifest: true,
   },
 });
 ```
@@ -47,7 +47,7 @@ export default defineMain({
   framework: '@storybook/your-framework',
   stories: ['../src/**/*.mdx', '../src/**/*.stories.@(js|jsx|mjs|ts|tsx)'],
   features: {
-    componentsManifest: false,
+    componentsManifest: true,
   },
 });
 ```
diff --git a/docs/api/main-config/main-config-features.mdx b/docs/api/main-config/main-config-features.mdx
index 6f7d63370219..4cf9e31faa90 100644
--- a/docs/api/main-config/main-config-features.mdx
+++ b/docs/api/main-config/main-config-features.mdx
@@ -127,7 +127,7 @@ Enable the [Backgrounds](../../essentials/backgrounds.mdx) feature.
 
 Type: `boolean`
 
-Default: `true`
+Default: `false`
 
 Generate [manifests](../../ai/manifests.mdx), used by the [MCP server](../../ai/mcp/overview.mdx).
 
diff --git a/docs/versions/latest.json b/docs/versions/latest.json
index 6cf06f93e6fe..a30d03a77bcf 100644
--- a/docs/versions/latest.json
+++ b/docs/versions/latest.json
@@ -1,6 +1 @@
-{
-  "version": "10.3.4",
-  "info": {
-    "plain": "- Addon-a11y: Clear status transition timer on unmount to prevent test flake - [#34203](https://github.com/storybookjs/storybook/pull/34203), thanks @mixelburg!\n- Bug: Skip re-processing already transformed config files for CSF factories - [#34273](https://github.com/storybookjs/storybook/pull/34273), thanks @huang-julien!\n- Builder-Vite: Use djb2 hash to prevent variable name collisions in builder-vite - [#34274](https://github.com/storybookjs/storybook/pull/34274), thanks @chida09!\n- CLI: Prompt for init crash reports - [#34316](https://github.com/storybookjs/storybook/pull/34316), thanks @JReinhold!\n- CSF4: Fix duplicate preview loading issue in Vitest - [#34361](https://github.com/storybookjs/storybook/pull/34361), thanks @valentinpalkovic!\n- Core: Fix WebSocket connection for StackBlitz/WebContainers - [#34281](https://github.com/storybookjs/storybook/pull/34281), thanks @ghengeveld!\n- React-Docgen: Try .tsx fallback when resolving .js ESM imports in docgen resolvers - [#34393](https://github.com/storybookjs/storybook/pull/34393), thanks @mixelburg!\n- React-Vite: Upgrade @joshwooding/vite-plugin-react-docgen-typescript to 0.7.0 - [#34335](https://github.com/storybookjs/storybook/pull/34335), thanks @beeswhacks!"
-  }
-}
+{"version":"10.3.5","info":{"plain":"- Core: Disable component manifest by default - [#34408](https://github.com/storybookjs/storybook/pull/34408), thanks @yannbf!"}}
\ No newline at end of file
diff --git a/docs/versions/next.json b/docs/versions/next.json
index f0368f4bd7b5..fd34e332d9b5 100644
--- a/docs/versions/next.json
+++ b/docs/versions/next.json
@@ -1,6 +1 @@
-{
-  "version": "10.4.0-alpha.3",
-  "info": {
-    "plain": "- Addon-Vitest: Streamline vite(st) config detection across init and postinstall - [#34193](https://github.com/storybookjs/storybook/pull/34193), thanks @valentinpalkovic!\n- Angular: Use Story ID for renderer IDs (including standalone stories) - [#33982](https://github.com/storybookjs/storybook/pull/33982), thanks @ValentinFunk!\n- Bug: Skip re-processing already transformed config files for CSF factories - [#34273](https://github.com/storybookjs/storybook/pull/34273), thanks @huang-julien!\n- CLI: Shorten CTA link messages - [#34236](https://github.com/storybookjs/storybook/pull/34236), thanks @shilman!\n- React Native Web: Fix vite8 support by bumping vite-plugin-rnw - [#34231](https://github.com/storybookjs/storybook/pull/34231), thanks @dannyhw!"
-  }
-}
+{"version":"10.4.0-alpha.7","info":{"plain":"- CLI: Explicitly tell whether smoke tests passed or failed - [#34419](https://github.com/storybookjs/storybook/pull/34419), thanks @Sidnioulz!\n- Core: Add `ChangeDetectionService` and wire up builder-vite - [#34369](https://github.com/storybookjs/storybook/pull/34369), thanks @ghengeveld!\n- Maintenance: Extract parseFilterParam shared helper from tags and statuses modules - [#34436](https://github.com/storybookjs/storybook/pull/34436), thanks @mixelburg!\n- Sidebar: Add status-based filtering with refactored status architecture - [#34339](https://github.com/storybookjs/storybook/pull/34339), thanks @valentinpalkovic!\n- UI: Fix global shortcuts not showing region focus indicator - [#34201](https://github.com/storybookjs/storybook/pull/34201), thanks @Sidnioulz!"}}
\ No newline at end of file