Fix agent event ordering: update state before emitting events

Previously, Agent.emit() was called before state was updated (e.g., appendMessage).
This meant event handlers saw stale state - when message_end fired,
agent.state.messages didn't include the message yet.

Now state is updated first, then events are emitted, so handlers see
consistent state that matches the event.

packages/agent/src/agent.ts

@@ -255,25 +255,20 @@ export class Agent {
 				cfg,
 				this.abortController.signal,
 			)) {
-				// Pass through all events directly
-				this.emit(ev as AgentEvent);
-
-				// Update internal state as needed
+				// Update internal state BEFORE emitting events
+				// so handlers see consistent state
 				switch (ev.type) {
 					case "message_start": {
-						// Track streaming message
 						partial = ev.message;
 						this._state.streamMessage = ev.message;
 						break;
 					}
 					case "message_update": {
-						// Update streaming message
 						partial = ev.message;
 						this._state.streamMessage = ev.message;
 						break;
 					}
 					case "message_end": {
-						// Add completed message to state
 						partial = null;
 						this._state.streamMessage = null;
 						this.appendMessage(ev.message as AppMessage);
@@ -293,7 +288,6 @@ export class Agent {
 						break;
 					}
 					case "turn_end": {
-						// Capture error from turn_end event
 						if (ev.message.role === "assistant" && ev.message.errorMessage) {
 							this._state.error = ev.message.errorMessage;
 						}
@@ -304,6 +298,9 @@ export class Agent {
 						break;
 					}
 				}
+
+				// Emit after state is updated
+				this.emit(ev as AgentEvent);
 			}
 
 			// Handle any remaining partial message

packages/coding-agent/test/rpc.test.ts

@@ -172,7 +172,7 @@ describe.skipIf(!process.env.ANTHROPIC_API_KEY && !process.env.ANTHROPIC_OAUTH_T
 		// Find assistant's response
 		const messageEndEvents = events.filter((e) => e.type === "message_end") as AgentEvent[];
 		const assistantMessage = messageEndEvents.find(
-			(e) => e.type === "message_end" && (e as any).message?.role === "assistant",
+			(e) => e.type === "message_end" && e.message?.role === "assistant",
 		) as any;
 
 		expect(assistantMessage).toBeDefined();

pi-mono.code-workspace

@@ -1,22 +1,8 @@
 {
 	"folders": [
-		{
-			"name": "sitegeist",
-			"path": "../sitegeist"
-		},
 		{
 			"name": "pi-mono",
 			"path": "."
-		},
-		{
-			"name": "mini-lit",
-			"path": "../mini-lit"
-		},
-		{
-			"path": "../../agent-tools/browser-tools"
-		},
-		{
-			"path": "../pi-terminal-bench"
 		}
 	],
 	"settings": {}