Draftmux with a pull request description open: Markdown on the left, its GitHub preview in the middle and the agent chat on the right

Polish what your agent writes before it goes out

Apple silicon, macOS 11 or later · Linux

or from the terminal

$curl -fsSL https://raw.githubusercontent.com/raine/draftmux/main/install.sh | sh

Your agent knows the context, so it should write the PR description, the issue or the Slack update. Refining that message inside an agent harness is the hard part.

Draftmux is an editor for iterating on a message with an agent, next to a live preview of how it will look where it's going.

Hand-off from your session

/draftmux Slack update for the team forks the conversation, and the fork writes the first draft from what you've already discussed.

Edit beside a preview

Write Markdown and see it as GitHub, Slack, rich text or plain text, the way it will look where it's going.

Selection actions

Select text to get alternatives, Shorten or Tighten. With text selected, a chat message changes only that part.

Chat with the draft's agent

Ask for changes in plain words. The agent knows the session the draft came from.

Copy or hand back

Copy formatted for the target with ⌘⇧C, or tell your agent "done, file the issue".

Edit files

draftmux README.md opens a file as a draft, with its own agent session in the file's directory.