Method callTool

apps/sim/lib/mcp/client.ts:180–222

(toolCall: McpToolCall)

  }

  async callTool(toolCall: McpToolCall): Promise<McpToolResult> {
    if (!this.isConnected) {
      throw new McpConnectionError('Not connected to server', this.config.name)
    }

    const consentRequest: McpConsentRequest = {
      type: 'tool_execution',
      context: {
        serverId: this.config.id,
        serverName: this.config.name,
        action: toolCall.name,
        description: `Execute tool '${toolCall.name}' on ${this.config.name}`,
        dataAccess: Object.keys(toolCall.arguments || {}),
        sideEffects: ['tool_execution'],
      },
      expires: Date.now() + 5 * 60 * 1000,
    }

    const consentResponse = await this.requestConsent(consentRequest)
    if (!consentResponse.granted) {
      throw new McpError(`User consent denied for tool execution: ${toolCall.name}`, -32000, {
        consentAuditId: consentResponse.auditId,
      })
    }

    try {
      logger.info(`Calling tool ${toolCall.name} on server ${this.config.name}`, {
        consentAuditId: consentResponse.auditId,
        protocolVersion: this.getNegotiatedVersion(),
      })

      const sdkResult = await this.client.callTool(
        { name: toolCall.name, arguments: toolCall.arguments },
        undefined,
        { timeout: getMaxExecutionTimeout() }
      )

      return sdkResult as McpToolResult
    } catch (error) {
      logger.error(`Failed to call tool ${toolCall.name} on server ${this.config.name}:`, error)
      throw error
    }
  }

  async ping(): Promise<{ _meta?: Record<string, any> }> {
    if (!this.isConnected) {