Assistants
How Sunny identity, models, tools, and thread routing work in Sundial.
Sunny is the AI collaborator users talk to from text threads. Workspaces can host multiple Sunny identities, shown as globally numbered Sunny profiles when a thread needs more than one lane.
Sunny identity
Each Sunny has a name, instructions, model preference, connected apps, and workspace access. Authorship is tracked on edits so users can see which Sunny or human changed a document.
Thread routing
In iMessage/RCS group threads, users can route future messages with commands like/switch Sunny #2. The selected Sunny becomes the active responder for that chat until the route changes again.
Models
Sundial uses a Claude backend and a LiteLLM-compatible backend. Model selection is stored per chat so a workspace can keep a fast default while using stronger models where needed.
Tools and apps
Sunny uses workspace tools for files, tasks, secrets, GitHub actions, connected-app auth links, and messaging flows. High-value integrations keep tokens server-side instead of exposing them as raw environment variables.