AI product Open source
penmentor is an AI-assisted mathematics tutor for pen tablets and handwritten work in Xournal++. A keypress sends the page to a configured AI command-line agent such as Claude Code, Codex, or Antigravity; the agent marks the work on the page with colored annotations, circles the first mistake, ticks correct lines, and provides graduated hints rather than directly giving the answer. Users can select part of a problem for an interactive Manim animation, and the tool supports practice prompts such as find-the-error drills and technique identification. The project is designed for Linux on X11 and uses an Xournal++ plugin together with tools including rofi, slop, xdotool, and PyQt6. It is distributed under the MIT license.
1 use taken from transcripts — each links to the moment in the video.
A math tutor designed for pen tablets that provides AI-marked solutions on handwritten problems, offering graduated hints instead of just the answer.
1 in the library.