[BUG] Single-dollar $...$ inline LaTeX math does not render in the desktop app

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

The Claude Code macOS desktop app renders $$...$$ math correctly — both as inline (when placed mid-paragraph) and as display (when on its own line). However, single-dollar $...$ inline math does not render at all, appearing as raw text instead.

This applies to both Claude's output and user input.

What Should Happen?

Expected behavior
Single-dollar delimiters $...$ should render as inline math, consistent with:

GitHub Flavored Markdown
Obsidian
KaTeX / MathJax defaults
claude.ai web interface

Error Messages/Logs

Steps to Reproduce

Steps to reproduce:
Open the Claude Code macOS desktop app
Send a message containing single-dollar inline math, e.g.: The function $f(x) = x^2$ is a parabola.
Observe that $f(x) = x^2$ appears as raw text with literal dollar signs
Compare with: The function $$f(x) = x^2$$ is a parabola. — this renders correctly

Claude Model

None

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

Claude 1.1.7714 (3bd6f6) 2026-03-19T14:50:53.000Z

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

Note that this applies to Claude Code on the Claude Desktop App, for MacOS