Method connectServer

extensions/cli/src/services/MCPService.ts:239–341

(serverConfig: MCPServerConfig)

  }

  private async connectServer(serverConfig: MCPServerConfig) {
    const connection: ServerConnection = {
      config: serverConfig,
      client: null,
      prompts: [],
      tools: [],
      status: "connecting",
      warnings: [],
    };
    const serverName = serverConfig.name;
    this.connections.set(serverName, connection);
    this.updateState();

    const vars = getTemplateVariables(JSON.stringify(serverConfig));
    const secretVars = vars.filter((v) => v.startsWith("secrets."));
    const unrendered = secretVars.map((v) => {
      return decodeFQSN(v.replace("secrets.", "")).secretName;
    });

    try {
      if (unrendered.length > 0) {
        const message = `${serverConfig.name} MCP Server has unresolved secrets: ${unrendered.join(", ")}
For personal use you can set the secret in the hub at https://continue.dev/settings/secrets or pass it to the CLI environment.
Org-level secrets can only be used for MCP by Background Agents (https://docs.continue.dev/hub/agents/overview) when \"Include in Env\" is enabled for the secret.`;
        if (this.isHeadless) {
          throw new Error(message);
        } else {
          connection.warnings.push(message);
        }
      }

      const client = await this.getConnectedClient(serverConfig, connection);

      connection.client = client;
      connection.status = "connected";
      this.updateState();

      const capabilities = client.getServerCapabilities();

      if (capabilities?.prompts) {
        try {
          connection.prompts = await this.withTokenRefresh(
            serverName,
            async () => {
              const conn = this.connections.get(serverName);
              if (!conn?.client) {
                throw new Error(`Client for ${serverName} not available`);
              }
              return (await conn.client.listPrompts()).prompts;
            },
          );
        } catch (error) {
          const errorMessage = getErrorString(error);
          connection.warnings.push(`Failed to load prompts: ${errorMessage}`);
          logger.warn("Failed to load MCP prompts", {
            name: serverName,
            error: errorMessage,
          });