Merge pull request #171 from storybookjs/copilot/change-export-in-storybook-mcp

Fix: expose the `get-documentation-for-story` tool in the MCP Addon

Author: JReinhold

.changeset/brave-wolves-swim.md

@@ -0,0 +1,7 @@
+---
+'@storybook/mcp': minor
+---
+
+Export `addGetStoryDocumentationTool` directly instead of renaming it to `addGetComponentStoryDocumentationTool`.
+
+**Breaking change**: If you were importing `addGetComponentStoryDocumentationTool` from `@storybook/mcp`, update your import to use `addGetStoryDocumentationTool` instead.

.changeset/calm-rivers-flow.md

@@ -0,0 +1,5 @@
+---
+'@storybook/addon-mcp': patch
+---
+
+Fix: expose the `get-documentation-for-story` tool in the MCP Addon.

apps/internal-storybook/pnpm-lock.yaml

@@ -100,7 +100,7 @@ describe('MCP Endpoint E2E Tests', () => {
 
 			expect(response.result).toHaveProperty('tools');
 			// Dev, docs, and test tools should be present
-			expect(response.result.tools).toHaveLength(5);
+			expect(response.result.tools).toHaveLength(6);
 
 			expect(response.result.tools).toMatchInlineSnapshot(`
 				[
@@ -379,6 +379,27 @@ describe('MCP Endpoint E2E Tests', () => {
 				    "name": "get-documentation",
 				    "title": "Get Documentation",
 				  },
+				  {
+				    "description": "Get detailed documentation for a specific story variant of a UI component. Use this when you need to see more usage examples of a component, via the stories written for it.",
+				    "inputSchema": {
+				      "$schema": "http://json-schema.org/draft-07/schema#",
+				      "properties": {
+				        "componentId": {
+				          "type": "string",
+				        },
+				        "storyName": {
+				          "type": "string",
+				        },
+				      },
+				      "required": [
+				        "componentId",
+				        "storyName",
+				      ],
+				      "type": "object",
+				    },
+				    "name": "get-documentation-for-story",
+				    "title": "Get Documentation for Story",
+				  },
 				]
 			`);
 		});
@@ -750,6 +771,7 @@ describe('MCP Endpoint E2E Tests', () => {
 				[
 				  "list-all-documentation",
 				  "get-documentation",
+				  "get-documentation-for-story",
 				]
 			`);
 		});