Aspire CLI: Markdown errors

[lvde0]

Is there an existing issue for this?

• I have searched the existing issues

Describe the bug

I have a custom publisher that logs some debug info via ILogger<T>.LogDebug("{x}, "<some json here>"). When I run aspire deploy I receive the following error:

An unexpected error occurred: Unbalanced markup stack. Did you forget to close a
[2026-01-06T15:30:03.837Z] tag?

Expected Behavior

User arguments passed to the logger should be properly escaped to prevent markdown errors.

Steps To Reproduce

No response

Exceptions (if any)

No response

.NET Version info

10.0.101

Anything else?

No response

[MihuBot]

I'm a bot. Here is a possible related and/or duplicate issue (I may be wrong):

• CLI does not properly escape markup tags #11294

[lvde0]

Narrowed down the issue to \n and \r\n characters... It seems to choke the whole logger even when using Markup.Escape()