Will my Slack draft be stored anywhere?

No. ClipHistory has no cloud and no account. The rewrite request goes from your Mac directly to the AI provider you configured with your own API key.

Can I keep my original message?

Yes. The rewritten text is a new clip, so your original stays in history for comparison or to revert.

Does this work outside Slack?

Yes. The copy-rewrite-paste loop works with any app — email, docs, issue trackers — since it operates on your clipboard.

How do I reuse messages I send often?

Save them as snippets. Snippets drop in instantly and survive beyond the 150-clip rolling window, just like pinned clips.

Rewrite a Slack Message with AI on Mac

You typed a Slack message, paused, and realized it lands wrong — too blunt, too rambling, or just not quite the tone for the channel. Editing it inline in Slack is fiddly. A cleaner path: copy the draft, rewrite it with AI, and paste the better version back. Here's how to do that on a Mac.

Why rewrite before you send

Slack moves fast, and once a message is posted it's read. A quick rewrite pass catches the things you'd regret: a sharp sentence to a colleague, a wall of text that buries the question, a casual line in a formal channel. The goal isn't to over-polish every message — it's to fix the ones that matter before they go out.

The copy-rewrite-paste loop

Type your draft in Slack (or anywhere), then select and Cmd+C it. Don't send yet.
Press Cmd+Shift+V to open ClipHistory.
Select the draft clip and run Rewrite.
Cmd+V the improved version back into the Slack box.
Read it once, then send.

The rewritten text comes back as a fresh clip, so your original is still in history if you want to compare or revert.

Steer the rewrite to the situation

Slack messages need different things depending on the moment:

Soften a blunt message

A frustrated "this is broken again, who changed it" becomes a question that gets help instead of defensiveness. Rewrite is good at finding the diplomatic version.

Tighten a rambling one

If you've written three paragraphs to ask one thing, Rewrite can pull the ask to the front. For aggressive shortening, the Summarize transform is the more direct tool.

Match the channel's register

A message for a leadership channel can be rewritten more formally; a quick note to your team can stay loose. You're adjusting tone, not meaning.

Your message, your AI key

Every Rewrite runs through the AI provider you've connected with your own API key — Anthropic, OpenAI, DeepSeek, Google, or a custom endpoint. The draft goes from your Mac directly to that provider and back. There's no ClipHistory cloud, no account, and no server-side copy of your message. Your clip history stays local, and the app is signed and notarized by Apple, running on macOS 12+ on Apple Silicon and Intel.

This is worth noting for work chat specifically: Slack messages often reference projects, people, and decisions you'd rather not hand to a random rewriting website. The data path here is just your Mac to your own provider.

Save your recurring messages as snippets

A lot of Slack writing repeats: standups, "heads up, deploying in 5," polite nudges on a stalled thread. Once you've rewritten one to your liking, save it as a snippet and drop it in instantly next time — no rewrite needed. Snippets, like pinned clips, persist beyond the rolling 150-clip history.

A paste stack for multi-part replies

Some Slack situations need several pieces in order — a status update, a link, and a follow-up question, posted as separate messages or assembled into one. ClipHistory's paste stack lets you queue up multiple clips and paste them in sequence, so you're not bouncing back to the clip list between each one.

Combined with Rewrite, that's a tidy workflow: rewrite each part to the right tone, line them up in the paste stack, and drop them into Slack in order. It's especially handy for the recurring "here's the update, here's the blocker, here's what I need from you" structure that work chat is full of.

Where your messages go (and don't)

To restate the privacy model plainly: ClipHistory has no account and no cloud. Your clip history — including every draft you rewrite — stays on your Mac. The app is signed and notarized by Apple and runs as a universal binary on Apple Silicon and Intel under macOS 12 or later. The only data that ever leaves your machine is the rewrite request you deliberately send, and it goes straight to the AI provider whose key you configured. Nothing about your Slack drafts is logged, synced, or stored remotely by ClipHistory. The global shortcut Cmd+Shift+V keeps the whole thing one keystroke away while you're mid-conversation.

Recap

Copy your draft instead of sending it raw.
Cmd+Shift+V, run Rewrite, steer toward the tone you need.
Paste back, read once, send.
Use the paste stack for multi-part replies.
Turn repeat messages into snippets.

A two-second rewrite pass is cheap insurance against the message you wish you'd phrased differently.

Ready to put AI to work on your clipboard? Get ClipHistory for macOS ($19.99) — a one-time payment, 12-month license, no auto-renewal. Signed and notarized by Apple, runs on macOS 12+, and everything stays local on your Mac.