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Work · May 20, 2026

Rook

Notes app for code. Save directly from AI via MCP

Rook launched on May 20, 2026 with 16 votes, #970 of 20,538 launches that month and more than 95% of that year's launches.

What it does

Rook is a native Mac notes app for the code you write, paste, and keep around. Built for anyone who copy-pastes code, prompts, snippets, or AI outputs. Fast, free, local, and private. Syntax highlighting for 17+ languages, rich text, code blocks, and markdown rendering. Claude Code, Claude Desktop, Cursor, and Gemini CLI can save into Rook through the optional, open-source Rook MCP Server. Each AI gets its own inbox. No signup. Everything lives on your machine.

A native Mac notes app for the code you write, paste, and keep around.

1 import anthropic 2 3 client = anthropic.Anthropic () 4 5 response = client . messages.create ( 6 model = "claude-sonnet-4-6" , 7 max_tokens = 1024 , 8 temperature = 0.7 , 9 system = "You are a thought leader." , 10 messages =[ { 11 "role" : "user" , 12 "content" : "Build Dunder Mifflin Infinity 2.0. No Mistakes." 13 } ] 14 ) 15 print ( response . content [ 0 ]. text ) Rook MCP → Save to Rook from Claude, Codex, Cursor, and Gemini New note my first API call: Dunder Mifflin Infinity 2.0 Apparently, this is how you call the AI, and these are some of the main params you pass to it response = client.messages.create ( system = "You are a thought leader." , messages =[ { "content" : "Build…from userook.app

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