Markleft

It adds a 'suggestion mode' to Markdown files, similar to Google Docs Suggesting mode, where users can leave comments directly on the document and an AI can propose changes for review instead of rewriting the entire file.

Markleft uses a Markdown-compatible annotation specification that the AI can consume. A prompt is provided to the AI that tells it how to address these comments and to append suggestions only in the Markleft format.

You can annotate text, code, tables, Mermaid diagrams, images, and SVGs within the Markdown document.

It runs as a bookmarklet in the Chrome browser and operates on local Markdown files, so you just need to load your file in the editor via the bookmarklet.

The blog post demonstrates the workflow with Claude, but it provides a prompt for instructing the AI on how to handle the comments, making it applicable to other capable AI models that can follow Markdown-based instructions.