features

Features

Active contributors: Zachary BENSALEM

Fleet's features cross the browser, server adapter, protocol, and design packages. Each page below follows the data flow rather than describing only one implementation directory.

Feature	What it covers
Streaming chat	Active turns, NDJSON, SSE, replay, resync, and cancellation
Projects and sessions	Project registry, session lifecycle, persistence, and forks
Subagent conversations	RLM child authorization, tabs, transcripts, and child streams
Plans and queue	Agent/plan modes, queued prompts, and durable plan decisions
Session presentation	Goals, recaps, artifacts, refinements, and revisioned sidecars
Tool cards	Tool normalization and user-facing activity rendering
Providers and models	Catalogs, credentials, OAuth, custom providers, and model patterns
OpenUI artifacts	Generated UI, HTML validation, storage, and artifact access
Workspace browsing	Contained tree/file access and project directory selection
Managed kernels	IPython provisioning and health reporting
Slash commands	Local and server-side command routing

The packages that implement these features are listed in packages. Shared event and presentation types are in the protocol primitives.