MagicTeX — a LaTeX editor for AI agents (Claude Code): live PDF preview, PDF comments that drive edits, Visual (WYSIWYG) mode, and git-tracked history. No local TeX install.
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MagicTeX is a LaTeX editor built for AI agents — an Overleaf-like one-window workspace for Claude Code, served by an MCP server, with no local TeX install and no Overleaf account: live PDF preview, a source editor with a Visual (WYSIWYG) mode, change history, and comments you anchor on the rendered PDF that become edit instructions for the agent. (npm package: magictex-mcp.)
It compiles with a WASM TeX Live 2026 engine (texlyre-busytex) running inside a headless browser, so there's nothing multi-gigabyte to install — just a one-time WASM asset download.
A guided walkthrough of the comment → agent loop lives at zoelin.dev/tools/magictex, built from real tool output. It's a replay, not a hosted instance — the TeX engine is a one-time ~650 MB download and the agent half is Claude itself, so MagicTeX runs next to your project rather than in a web page.
One browser window (inspired by Typst's one-surface editor and LiquidText's anchored annotations):
- Comment → Claude loop (the point of it all). Review the rendered document like a supervisor marking up a printout: select text, attach a comment ("tighten this paragraph"). Then tell Claude to "address my comments" — it pulls them via checkcomments as located work items (page + quoted passage + the source file:line it anchors to + your ask), edits the source, and resolves each card with a note. You interact with the document; Claude interacts with the source. Run it hands-off with /loop — see docs/AGENT-LOOP.md. - Editable source panel. A CodeMirror LaTeX e
From the project README.
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