fix(mcp): pass timeout to SDK callTool to override 60s default

[waleedlatif1]

Summary

• The MCP SDK has a hardcoded 60-second default timeout (DEFAULT_REQUEST_TIMEOUT_MSEC)
• Pass our configured timeout (600000ms = 10 min) to callTool to override it

Type of Change

• Bug fix

Testing

Tested manually

Checklist

• Code follows project style guidelines
• Self-reviewed my changes
• No new warnings introduced
• I confirm that I have read and agree to the terms outlined in the Contributor License Agreement (CLA)

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1 Skipped Deployment

Project	Deployment	Actions	Updated (UTC)
docs	Skipped		Feb 1, 2026 1:36am

[greptile-apps]

Greptile Overview

Greptile Summary

Added timeout parameter to the MCP SDK's callTool method to override its hardcoded 60-second default timeout with the configured timeout value (defaults to 600000ms/10 minutes if not specified).

Key Changes:

• Modified McpClient.callTool() to pass timeout options as the third parameter to this.client.callTool()
• Uses this.config.timeout || 600000 to ensure a sensible fallback
• Addresses issue where long-running MCP tool calls were timing out prematurely at 60s despite server configs having different timeout values (typically 30s default or custom values)

Confidence Score: 5/5

• This PR is safe to merge with minimal risk
• The change is a straightforward bug fix that correctly passes the timeout parameter to the SDK method. The implementation follows the SDK's API signature, uses existing configuration values with a sensible fallback, and addresses a real issue where tool calls were timing out prematurely.
• No files require special attention

Important Files Changed

Filename	Overview
apps/sim/lib/mcp/client.ts	Added timeout parameter to SDK callTool method to override the SDK's 60s default with configured timeout (defaults to 600000ms/10min)

Sequence Diagram

sequenceDiagram
    participant Service as McpService
    participant Client as McpClient
    participant SDK as MCP SDK Client
    participant Server as MCP Server
    
    Note over Service: Config has timeout: 30000ms or custom
    Service->>Client: createClient(config)
    Note over Client: Stores config with timeout
    Client->>SDK: new Client()
    Service->>Client: callTool(toolCall)
    Note over Client: Uses this.config.timeout || 600000
    Client->>SDK: callTool(params, undefined, {timeout})
    Note over SDK: Overrides 60s DEFAULT_REQUEST_TIMEOUT_MSEC
    SDK->>Server: HTTP Request with configured timeout
    Server-->>SDK: Tool result
    SDK-->>Client: sdkResult
    Client-->>Service: McpToolResult

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