[loganj]

🤖

Summary

• Stacked on refactor(pi): split the Pi harness into runtime and UI #1723. This starts the second layer of the agent host work: the app's screens reach the agents service only through a client, so the service can later run in a hidden webview.
• It is a type-only change. No runtime code changes.

Details

• New AgentsClient type in features/agents/service.ts. It is Agents without what only running agents and plugin entries use: register, present, addTool, tools, wake, handle, relay, core, storage, note, addAttentionSource and attentionProviders.
• Screens, hooks (features/agents/react.ts), AgentsContext, the Settings and sidebar props, and the huddle composer bridge now take AgentsClient in place of Agents.
• Plugin entries still get the full ctx.agents. They pass it to their screens, which accept the narrower type.
• It typechecks with no other change, so no screen uses a runtime-only member today. From now on, a screen that reaches for one fails to compile.

What comes next

• Later PRs move the screens' synchronous reads (memberships, joinable, interruptible, sessionState, previewRetype, and the type functions called in render) onto data a client can hold. Then a message-port client implements AgentsClient.

Testing

• tsc --noEmit passes, and Biome passes on the changed files.

🤖 Generated with Claude Code

[loganj]

🤖 Closing: the Manager/Runner split replaces this design (#1748 → #1839, with more to come). The branch stays in place because #1737, #1743 and #1744 are still stacked on it. They will move onto the new stack in the hidden-page step.