FAQ and limits

Getting started

Do I need an account? No. The desktop app edits local folders and runs Claude Code or Codex with no account. You need one to share, to use Sundial Agent, or to use the web app.

Which agent is it using? The composer names it. Claude Code or Codex when one is installed, otherwise Sundial Agent once you sign in. In a local project a chat keeps its agent once it has messages; to switch, start a new chat.

The chat says Sign in to chat with Sunny. Install Claude Code or Codex and sign in to it in your terminal, then start a new chat, or sign in to Sundial to use Sundial Agent.

Is Sunny the same as Sundial Agent? Yes; in a comment it answers to @Agent. Ask Sunny for help is the separate support chat.

How much does it cost? The desktop app needs no account and no plan; only Sundial Agent, inline AI and autocomplete spend Sundial credits (Quick start). Storage: 5 GB per free workspace, 50 GB on Pro.

Where are my files? In the folder you opened. Sundial writes plain files back to disk; nothing is locked in a database. Sundial's own data for a local project (chats, settings) lives under ~/.sundial/desktop. Quit or uninstall the app and your folder is untouched.

Editing

The agent changed the text directly instead of suggesting. The chat was in Edit mode. Switch the control next to the composer back to Suggest. To undo, open the turn's diff from the diff button on its message, or restore from History.

How do I undo an agent's suggestion? Reject it. Hover the change, or use Reject all at the bottom of the document.

Can I see everything an agent changed today? The Review panel lists changes across the project; filter it to today, a chat, or an author. Show authorship colors every line by who wrote it.

My Obsidian vault has wikilinks and frontmatter. They render in place. Open the vault folder as a project.

Does it do LaTeX? Yes. The source opens beside a live PDF, compiled on your machine.

I cloned a repository: who commits? You do, with git as usual, or ask Claude Code or Codex in a chat, which has your shell.

Which key is it, Cmd+Option+M or Cmd+Alt+M? Cmd+Alt+M; the app and the Shortcuts table use that spelling.

Privacy and your data

What leaves my machine? Your text leaves your machine in three cases: you share it, you use Sundial Agent, or you use inline AI. Privacy and security lists every connection the app makes.

Can Claude Code run commands on my machine from Sundial, and will it ask first? Claude Code and Codex can run shell commands in the project folder without asking each time, the way they do in your terminal. Their shell runs as you, so like a terminal it can read what you can read. The rest is on Privacy and security.

Does Sundial train on my documents? Inline AI keeps the passage you selected, the paragraphs around it, the variants and your choice. Chats and files that never leave your machine are never seen by Sundial. For everything else, see /privacy and /terms.

Can I use Sundial for work under an NDA? With Claude Code or Codex, no sharing and no inline AI, Sundial holds none of your text; the three exceptions are on Privacy and security.

Can I turn off what the app reports about itself? Yes. Send anonymous usage and error reports, in the account menu of the desktop app, turns off both error reports and usage analytics.

Does the app work offline or behind a firewall? The interface loads from www.sundial.md on every launch, so the app needs to reach it to open. Claude Code and Codex chats then need Anthropic or OpenAI, nothing else; your files never leave your disk for that.

How do I delete a workspace or my account? Delete a workspace from its row menu on the dashboard (owner only). Delete your account from the profile page in a browser; that removes your account, tokens and workspaces. More on Privacy and security.

Sharing and sync

Someone I shared with sees an old version. Sharing syncs live while the share is on. Check that the file is inside the shared scope, and that neither of you is offline.

I saved a .env in a shared folder and it never synced. From the desktop app, .env and .env.* files, and folders like node_modules/ and .git/, never sync.

How do two people work on a desktop project? Sharing needs a Sundial account for the person sharing; the other person opens the document at sundial.md in a browser at the role you gave them.

What Sundial cannot do yet

<!-- mirrors content/support-limits.md; change both -->

Cloud only. These work only in cloud workspaces on sundial.md, not in the desktop app: two-way GitHub sync (edits become commits, pushes arrive as edits), scheduled tasks that post a prompt into a chat on a cadence, skills installed from a URL, LaTeX with a full TeX Live compiler, and export to PDF and Word. So do Overleaf sync, workspace secrets and the agent's sandbox shell.

On a phone. The phone layout is a reader and a chat surface, not the full editor: no tabs or splits, panels open full screen, settings cannot be opened, Open with is unavailable, and the layout is not remembered between visits.

Files. Only the listed text formats are live documents; everything else syncs as a file with no diff and no edit history. A text file over 10 MB is stored as a file. LaTeX compiles only from a .tex root. Office files preview as PDF.

Getting help

Ask Sunny for help, in the sidebar, opens a support chat with the Sundial team. It sends your message, any attachments you add (up to 5 files, 100 MB each and 200 MB total), the workspace id, and your email if you are signed in or one you type, so the reply can reach your inbox. On these docs pages, the Ask a question panel answers from this documentation.