Comment by agilebyte

Markdown format with a comment saying what the file path is. So:

This is src/components/Foo.tsx

```tsx // code goes here ```

OR

```tsx // src/components/Foo.tsx // code goes here ```

These seem to work the best.

I tried diff syntax, but Gemini 2.5 just produced way too many bugs.

I also tried using regex and creating an AST of the markdown doc and going from there, but ultimately settled on calling gpt-4.1-mini-2025-04-14 with the beginning of the code block (```) and 3 lines before and 3 lines after the beginning of the code block. It's fast/cheap enough to work.

Though I still have to make edits sometimes. WIP.