Bug: `agentcore dev` fails with `[TsAgent] Failed to start: spawn npx ENOENT` on Windows

[ravindrasinghshah]

Description

Running agentcore dev on Windows encounters a spawn npx ENOENT error when attempting to launch the local TsAgent dev server.

Steps to Reproduce

1. Install AgentCore CLI on Windows using NVM for Windows.
2. Create a TypeScript agent project using agentcore create.
3. Run agentcore dev.

Expected Behavior

The local development server should start successfully and compile/run the agent using npx.

Actual Behavior

The server fails to start with the error [TsAgent] Failed to start: spawn npx ENOENT because Node child_process spawning does not append .cmd or run within a shell context on Windows.

CLI Version

No response

Operating System

Windows

Additional Context

No response