Ng command ran from angular/cli MCP server is failing on windows.

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@amishne 已经在做这个了。

开始于 2026年2月4日。

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描述

area: @angular/cli freq1: low severity3: broken type: bug/fix
Command

version

Is this a regression?
  • Yes, this behavior used to work in the previous version
The previous version in which this bug was not present was

No response

Description

I am just reporting a bug I experienced on windows when trying the new experimental tools of the angular/cli mcp server.

On the latest angular/cli 21.1.2 when using the mcp server with experimental tools like modernize or build the mcp server fails to run the "ng" command on windows.
I don't experience any issues on linux systems.

The ng command is working fine in cmd or powershell with local or global angular/cli installation.

I asked my AI agent for feedback on the actual error and i got this :

{
  "status": "failure",
  "logs": [
    "Process failed with error: spawn ng ENOENT"
  ]
}

It seems to be related to the spawn method not working properly on windows when shell option is set to false.

I hope it helps.

Minimal Reproduction

Use experimental tools with the angular/cli mcp server that involves the ng command with spawn (like modernize or build) on windows.

Exception or Error
{
  "status": "failure",
  "logs": [
    "Process failed with error: spawn ng ENOENT"
  ]
}
Your Environment
Angular CLI       : 21.1.2
Node.js           : 24.12.0
Package Manager   : npm 11.6.2
Operating System  : win32 x64
Anything else relevant?

No response

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