Release Notes

Improved Magic Prompt

Get faster, smarter suggestions for improving your prompts.

Release Date
Mar 18, 2026
Categories
Assistant
Release Type
Regional Availability
US, EU, AU

What’s New

We’ve made several enhancements to the Improve function in Assistant so that prompt suggestions lead to higher quality responses.

  • Smarter model: Improve is now powered by Claude Sonnet 4.6, a state-of-the-art model optimized for speed and performance.
  • Better rewrites: Suggestions include deeper contextual edits and style improvements.
  • Knowledge source mentions: If users select sources, Improve adds @mentions in the rewritten prompt and tells Harvey how to use them.
  • Streaming: Rewrites now appear as they’re generated, so you can review and iterate faster.
  • More relevant suggestions: Improve uses your profile context to tailor rewrites to your work and use cases.
  • Fewer placeholders: Placeholders are used selectively to keep prompts specific and actionable.

Why It Matters

Improve turns rough prompts into clear, structured instructions, helping you get high-quality results faster with fewer revisions.

How to Use

Simply enter your initial prompt in Assistant, then select Improve.

image of roles settings and claude enabled features