Vite MCP Server

Instructions

Implementation Reference

• src/tools/browser-manager-tools.ts:226-283 (handler)

  Handler function that retrieves detailed information about a specific browser context. Fetches the browser object, current URL, activity status, and shared browser details, then returns formatted JSON response.

  async ({ contextId }) => {
    try {
      const browser = contextManager.getContext(contextId);
  
      if (!browser) {
        return {
          content: [
            {
              type: 'text',
              text: `Browser not found: ${contextId}`
            }
          ],
          isError: true
        };
      }
  
      // Get shared browser info for CDP endpoint
      const sharedBrowserInfo = contextManager.getSharedBrowserInfo();
      
      const browserInfo = {
        id: browser.id,
        type: browser.type,
        displayName: browser.displayName,
        metadata: browser.metadata,
        createdAt: browser.createdAt,
        lastUsedAt: browser.lastUsedAt,
        isActive: contextManager.hasContext(contextId),
        currentUrl: browser.page.url(),
        sharedBrowser: sharedBrowserInfo ? {
          type: sharedBrowserInfo.type,
          createdAt: sharedBrowserInfo.createdAt,
          contextCount: sharedBrowserInfo.contextCount,
          cdpEndpoint: sharedBrowserInfo.cdpEndpoint
        } : null
      };
  
      return {
        content: [
          {
            type: 'text',
            text: JSON.stringify(browserInfo, null, 2)
          }
        ]
      };
    } catch (error) {
      const errorMessage = error instanceof Error ? error.message : String(error);
      Logger.error(`Failed to get browser info for ${contextId}:`, error);
      return {
        content: [
          {
            type: 'text',
            text: `Failed to get browser info: ${errorMessage}`
          }
        ],
        isError: true
      };
    }
  }

• src/tools/browser-manager-tools.ts:223-225 (schema)

  Input schema for the 'get-context-info' tool, requiring a contextId string parameter.

  {
    contextId: z.string().describe('ID of the browser to inspect')
  },

• src/tools/browser-manager-tools.ts:220-284 (registration)

  Registration of the 'get-context-info' tool using server.tool(), including name, description, input schema, and handler function.

  server.tool(
    'get-context-info',
    'Gets detailed information about a specific browser instance',
    {
      contextId: z.string().describe('ID of the browser to inspect')
    },
    async ({ contextId }) => {
      try {
        const browser = contextManager.getContext(contextId);
  
        if (!browser) {
          return {
            content: [
              {
                type: 'text',
                text: `Browser not found: ${contextId}`
              }
            ],
            isError: true
          };
        }
  
        // Get shared browser info for CDP endpoint
        const sharedBrowserInfo = contextManager.getSharedBrowserInfo();
        
        const browserInfo = {
          id: browser.id,
          type: browser.type,
          displayName: browser.displayName,
          metadata: browser.metadata,
          createdAt: browser.createdAt,
          lastUsedAt: browser.lastUsedAt,
          isActive: contextManager.hasContext(contextId),
          currentUrl: browser.page.url(),
          sharedBrowser: sharedBrowserInfo ? {
            type: sharedBrowserInfo.type,
            createdAt: sharedBrowserInfo.createdAt,
            contextCount: sharedBrowserInfo.contextCount,
            cdpEndpoint: sharedBrowserInfo.cdpEndpoint
          } : null
        };
  
        return {
          content: [
            {
              type: 'text',
              text: JSON.stringify(browserInfo, null, 2)
            }
          ]
        };
      } catch (error) {
        const errorMessage = error instanceof Error ? error.message : String(error);
        Logger.error(`Failed to get browser info for ${contextId}:`, error);
        return {
          content: [
            {
              type: 'text',
              text: `Failed to get browser info: ${errorMessage}`
            }
          ],
          isError: true
        };
      }
    }
  );

• src/index.ts:81-83 (registration)

  Invocation of registerBrowserManagerTools which registers the 'get-context-info' tool among others to the MCP server.

  // Register new context manager tools
  const contextManager = registerBrowserManagerTools(server);