Under the hoodTier: how much it should matter to you
2Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
REPLArea: what it touches
Internal ChangesKind: in v2.1.248,
Internal ChangesSection of the release
What
The per-session state that drives the interactive session, commands, tools, dynamic MCP configuration, allowed agent types and the main-thread agent definition, moved out of scattered React hooks into one object with an explicit connect and dispose lifecycle. This is how the REPL works on this build; there is no flag.
Details
Exposes a subscribe/snapshot interface, memoized derivations, and a tool-pool cache keyed on the current permission context and MCP state.
Must be bound to a host screen before use and throws otherwise.
Plugin toast and status notifications route through it under plugin-toast- and plugin-status- keys.
Evidence
ReplSessionScope: used before its screen bound a host
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
