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Preferences shape how Mesa behaves in every conversation you have. They come in two parts: Custom Instructions, which you write yourself, and Memories, which Mesa builds automatically from your past conversations. Together, they make Mesa feel like it already knows how you work.

Custom instructions vs. memories

Custom InstructionsMemories
SourceYou write them manuallyMesa records them automatically
When appliedEvery conversationEvery conversation
How to editEdit directly in the textboxClick the three dots next to any memory
Best forExplicit standing rules: tone, format, jurisdictionPatterns Mesa has observed from past conversations

Set custom instructions

On your Customization page, write your custom instructions in the textbox. Mesa applies them to every conversation.
Instructions that tend to pay off:
  • Your role or practice area: “I’m a corporate associate focused on M&A transactions.”
  • Your preferred output format: “Structure answers as memos with headings.”
  • Jurisdiction defaults: “Apply New York law unless told otherwise.”
  • Keep them concise so Mesa can apply them consistently.

Manage memories

Mesa generates memories automatically from your conversations. On the same Customization page, you can review every memory it has saved. Click the three dots next to a memory to edit it, or delete it if it’s outdated or wrong.
You also control memories as a whole from the Memories section:
  • Turn memories on or off with the toggle. Switching it off stops Mesa from creating new memories. Existing memories are kept and still applied until you remove them.
  • Delete all memories clears everything Mesa has saved about you in one step. This can’t be undone.
Review your memories periodically to make sure Mesa’s assumptions about your work are still accurate.

Skills

Create reusable instructions for specific recurring tasks.

Organization customization

Apply shared preferences across your whole workspace.

Writing effective prompts

Pair standing preferences with well-written individual prompts.
Last modified on July 8, 2026