chore: add storybook to .mcp.json (#25352)

.mcp.json

@@ -1,36 +1,40 @@
 {
-  "mcpServers": {
-    "go-language-server": {
-      "type": "stdio",
-      "command": "go",
-      "args": [
-        "run",
-        "github.com/isaacphi/mcp-language-server@latest",
-        "-workspace",
-        "./",
-        "-lsp",
-        "go",
-        "--",
-        "run",
-        "golang.org/x/tools/gopls@latest"
-      ],
-      "env": {}
-    },
-    "typescript-language-server": {
-      "type": "stdio",
-      "command": "go",
-      "args": [
-        "run",
-        "github.com/isaacphi/mcp-language-server@latest",
-        "-workspace",
-        "./site/",
-        "-lsp",
-        "pnpx",
-        "--",
-        "typescript-language-server",
-        "--stdio"
-      ],
-      "env": {}
-    }
-  }
-}
+	"mcpServers": {
+		"go-language-server": {
+			"type": "stdio",
+			"command": "go",
+			"args": [
+				"run",
+				"github.com/isaacphi/mcp-language-server@latest",
+				"-workspace",
+				"./",
+				"-lsp",
+				"go",
+				"--",
+				"run",
+				"golang.org/x/tools/gopls@latest"
+			],
+			"env": {}
+		},
+		"typescript-language-server": {
+			"type": "stdio",
+			"command": "go",
+			"args": [
+				"run",
+				"github.com/isaacphi/mcp-language-server@latest",
+				"-workspace",
+				"./site/",
+				"-lsp",
+				"pnpx",
+				"--",
+				"typescript-language-server",
+				"--stdio"
+			],
+			"env": {}
+		},
+		"storybook": {
+			"type": "http",
+			"url": "http://localhost:6006/mcp"
+		}
+	}
+}

site/AGENTS.md

@@ -26,6 +26,19 @@ When investigating or editing TypeScript/React code, always use the TypeScript l
 - `pnpm playwright:test` - Run playwright e2e tests. When running e2e tests, remind the user that a license is required to run all the tests
 - `pnpm format` - Format frontend code. Always run before creating a PR
 
+## Storybook MCP
+
+The `.mcp.json` at the repo root includes a Storybook MCP server
+(`http://localhost:6006/mcp`). It provides tools for searching components,
+reading stories, and capturing screenshots directly from Storybook.
+
+Because it is an HTTP-type MCP server, Storybook must already be running
+before the MCP client can connect. Start it first:
+
+```sh
+pnpm storybook --no-open
+```
+
 ## Failure artifacts
 
 Playwright writes per-test failure artifacts to `site/test-results/` when