Tapa

Your notes and docs already live in Markdown. The moment you want an AI agent to read or edit them, though, you are usually handing that folder to a tool that wants an account, a sync service, and your telemetry.

Tapa is a reader-first, native, MIT-licensed Markdown editor built with Rust and Tauri. The folder you open is the same one your agents read, search and edit over MCP (Claude Code, Codex, Cursor), read-only by default with writes you turn on. The tradeoff I chose on purpose: Markdown rendering runs in JS while the native layer owns the window and the file I/O, so the app boots instantly instead of reinventing a renderer. No account and no sync; nothing phones home.

The file is the API. The honest limit: today it is a reader with a door for agents, heading toward an open, pluggable workspace, not there yet. See the dedicated page for the current build.