codex - 💡(How to fix) Fix Codex Desktop: support deep links to Markdown headings from chat and rendered docs

Bug / Feature Request

Codex Desktop renders local Markdown file links from chat well enough to open the target file, but heading anchors do not appear to work.

For example, a chat link to:

C:/Users/chris/GitHub/service-gpt-copy-paste/gpt/models/container-part.model.md#preconditions

opens the Markdown file, but does not navigate to the ## Preconditions heading. The same problem appears inside rendered Markdown docs themselves: links from a table of contents to headings in the same document do not jump to the target section.

Expected Behavior

Markdown links with heading fragments should navigate to the heading target:

• From Codex chat into a local Markdown file heading.
• From one local Markdown doc to another local Markdown doc heading.
• From a local Markdown doc to a heading in the same rendered doc.

Actual Behavior

The file opens, but the #heading-fragment is ignored.

Why This Matters

We are using gpt/models/*.md files as durable design models and commit-note references. Codex chat can already provide useful clickable file links, but without heading support, model docs become harder to navigate as they grow.

This would make model-heavy workflows much better: Codex could draft a note in chat with deep links to exact model sections, then publish those same links into the docs.

Example Workflow

A commit note includes links to sections such as:

• Container Part Model
• Preconditions
• STL Name Basis
• STL Argument Order
• JS Overload Names
• Member Index
• Lexeme Index

Each item should link directly to its section in gpt/models/container-part.model.md.

Environment

• Codex Desktop app
• Windows
• Local workspace Markdown files
• Links generated from Codex chat and from rendered Markdown docs