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Penmentor uses AI to mark up handwritten math and offer hints

github.com Editor score 6/10

Penmentor sends handwritten work from Xournal++ to Claude, Gemini or GPT for annotated feedback, hints and optional animations. It is a useful example of multimodal AI in a focused learning workflow, though the excerpt provides no evaluation.

What
Penmentor is a tool that uses an AI agent to mark up handwritten math and provide hints, feedback, and animations.
How
A xournal++ plugin shares the current page with an agent; users can box work to request an interactive manim animation.
Why it matters
The workflow connects handwritten work with AI feedback while letting learners keep control of the next step.
shares page boxed work xournal++ plugin AI command-lineagent manim
The plugin shares handwritten work with an AI agent, which can produce a manim animation. Sketched from the article's own text.

Read on github.com → Hacker News · 7 comments

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