Observed arrival · 2026-11-15
Chalk puts Claude Code’s plan on a Mac whiteboard
Chalk is a macOS whiteboard for steering Claude Code: mark up its plan beside your terminal, and the app says Claude can respond to those marks before writing code.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Claude Code users on macOS
- Worth noticing
- A big X is described as a stop signal: Claude pauses and asks what should change.
Field notes
The page describes Chalk as a Mac app that sits beside a terminal and lets a Claude Code session place its plan on a board. Users can cross out, circle, drag, or add a question; the page says these marks carry explicit meanings back to Claude, which can respond beside them and update the plan before coding. The landing page includes a demo and lists macOS 13 or newer, Apple silicon and Intel support, and a $24 one-time in-app purchase.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
$PaidCommerce or pricing visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
One card from the complete issue