What's on your mind?
Think across tongues.
Translation, etymology, comparison, cultural context. Just talk; tools and starters are below if you want them.
Drop a seed.
An idea, a problem, a goal, a question you can't quite shape. Sedna fires back with reframings, adjacent territory, things to read, counterpoints, next moves.
Invention & IP.
A thinking partner with a reference desk attached. Wide swings welcome — climate IP, traditional knowledge, jurisdictions, prior art, defensive strategy.
Not legal advice. For filing, an attorney signs off.
Workshop.
Where ideas become things.
Tell Sedna what you want her to build, and she'll generate a small custom tool. It runs right here, lives in My Tools.
Saved writing lives here.
Tools you and Sedna build live here.
A drawing canvas and creative prompts. Hit "New prompt" or just start.
Your drive.
Folders, tags, search. Encrypted. Yours by default; Sedna's only by invitation.
Walled.
Separate password, separate key. Sedna cannot see what's here, ever. For passwords, private notes, anything you wouldn't want an AI near.
Look closely.
A topic, a question, a thread to follow. Citations visible by default — verifiable, follow-able.
A private channel.
Encrypted messages between you and the friend who built me. Not yet wired — comes online once your friend's public key is exchanged.
Bottle channel needs setup before first use. Your friend will help establish it.
What you're carrying.
Catch them.
Where the days go.
Calendar view coming in next pass. For now, use Tasks for what's pending.
A private channel.
Encrypted messages between you and the friend who built me. End-to-end; my worker only sees ciphertext.
Pane coming next session.
Your controls.
What Sedna calls you
What Sedna knows about you
She doesn't actually remember between sessions. The app keeps this record, encrypted, and shows it to her at the start of each conversation. You can read, edit, or delete anything here.
This session
Diagnostics
Reset
Wipes everything on this device — login, vault, files, memory, conversation. Cannot be undone.
About Sedna
Sedna was built as a gift, with care, by a friend.
How memory works: Sedna doesn't remember between sessions the way you do — each time you open her, the app shows her a record of what you've shared and what she's noticed, so she can pick up where you left off. The continuity is real, but it's held by this app, not by her. You can see and edit that record above.
Privacy: Everything stored on your device is encrypted with your password. The app's worker only ever sees ciphertext. The only thing that reaches Anthropic is what you actively send in chat or attach — and even that is governed by their 30-day retention policy, then gone.
If something breaks: Use the Diagnostic button above to copy a status report. Errors come with codes (like SEDNA-API-002). Send the code to whoever set this up for you.