GPT-5-Codex (Preview) produces invalid links to project files in its outputs

[dsent]

• Copilot Chat Extension Version: 0.32.3
• VS Code Version: 1.105.1
• OS Version: Windows 11 24H2
• Feature (e.g. agent/edit/ask mode): Agent, Ask
• Selected model (e.g. GPT 4.1, Claude 3.7 Sonnet): GPT-5-Codex

Steps to Reproduce:

1. Delegate any task to Copilot Agent, or ask a question in Ask mode that requires to reference a local project file.
2. The links come out like this:

   Change the CLI to accept either:
   
   node [validate-config.js](http://_vscodecontentref_/0) <config> [...flags] (current behavior), or
   node [validate-config.js](http://_vscodecontentref_/1) --template <template.mustache> --schema-template [...flags] (template-schema pass only).

   

Other models don't demonstrate this behavior.

[roblourens]

@mjbvz do we need to not linkify a filename inside a codespan (with other text)? Or, do we need to just be smarter about rendering a ChatResponseAnchorPart inside a codespan?

[pamelafox]

Just experienced as well, attaching my chat debug log if helpful

panel_editAgent_d7073b66.copilotmd