nice find. unfortunately I don't think an MCP server will do the trick here. Here's what goose says needs to be done;

Based on my analysis of the Goose Desktop application's message rendering system, here's how hard it would be to add LaTeX support:

Current Message Rendering Architecture
The message rendering system in Goose Desktop is well-structured:

GooseMessage.tsx - Main component for rendering assistant messages
MarkdownContent.tsx - Handles markdown rendering using react-markdown with remark-gfm
ProgressiveMessageList.tsx - Manages message display with progressive loading
Adding LaTeX Support - Difficulty Assessment: Medium 🟡
What needs to be done:
Add LaTeX dependencies to package.json:

"katex": "^0.16.9",
"remark-math": "^6.0.0",
"rehype-katex": "^7.0.0"
Modify MarkdownContent.tsx to include LaTeX plugins:

import remarkMath from 'remark-math';
import rehypeKatex from 'rehype-katex';
import 'katex/dist/katex.min.css';

// In the ReactMarkdown component:
remarkPlugins={[remarkGfm, remarkMath]}
rehypePlugins={[rehypeKatex]}
Update CSS to ensure KaTeX styles work with the existing dark/light theme system

Why it's "Medium" difficulty:
Pros (making it easier):

✅ Already uses react-markdown with plugin system
✅ Well-structured component hierarchy
✅ Existing syntax highlighting infrastructure
✅ TypeScript setup is already configured
Challenges:

⚠️ Need to ensure KaTeX CSS works with existing Tailwind/theme system
⚠️ May need to handle LaTeX rendering errors gracefully
⚠️ Bundle size will increase (~200KB for KaTeX)
⚠️ Need to test with both inline ($...$) and block ($$...$$) math
⚠️ Should verify performance with large documents containing lots of math
Implementation Steps:
Install the LaTeX packages
Modify MarkdownContent.tsx to add the plugins
Import KaTeX CSS and ensure it plays nicely with the theme system
Test with various LaTeX expressions
Handle edge cases and errors
The existing codebase is well-architected for this kind of enhancement, so while there are some considerations around styling and performance, it's definitely achievable with a moderate amount of work.

with mcp-ui it may be possible now with an MCP

mind if we shift this to a discussion: https://github.com/block/goose/discussions ?