feat: rename sidebar-agent-list to sidebar-workspace-list and emit workspace updates on agent removal

packages/server/src/server/session.ts

@@ -4544,10 +4544,12 @@ export class Session {
     }
 
     const removedAgents = new Set<string>()
+    const affectedWorkspaceCwds = new Set<string>([targetPath])
     const agents = this.agentManager.listAgents()
     for (const agent of agents) {
       if (this.isPathWithinRoot(targetPath, agent.cwd)) {
         removedAgents.add(agent.id)
+        affectedWorkspaceCwds.add(agent.cwd)
         try {
           await this.agentManager.closeAgent(agent.id)
         } catch {
@@ -4565,6 +4567,7 @@ export class Session {
     for (const record of registryRecords) {
       if (this.isPathWithinRoot(targetPath, record.cwd)) {
         removedAgents.add(record.id)
+        affectedWorkspaceCwds.add(record.cwd)
         try {
           await this.agentStorage.remove(record.id)
         } catch {
@@ -4591,6 +4594,8 @@ export class Session {
       })
     }
 
+    await this.emitWorkspaceUpdatesForCwds(affectedWorkspaceCwds)
+
     return Array.from(removedAgents)
   }
 
@@ -5671,6 +5676,25 @@ export class Session {
     })
   }
 
+  private async emitWorkspaceUpdatesForCwds(cwds: Iterable<string>): Promise<void> {
+    if (!this.workspaceUpdatesSubscription) {
+      return
+    }
+
+    const uniqueWorkspaceCwds = new Set<string>()
+    for (const cwd of cwds) {
+      const normalized = this.normalizeWorkspaceId(cwd)
+      if (!normalized) {
+        continue
+      }
+      uniqueWorkspaceCwds.add(normalized)
+    }
+
+    for (const workspaceCwd of uniqueWorkspaceCwds) {
+      await this.emitWorkspaceUpdateForCwd(workspaceCwd)
+    }
+  }
+
   private async handleFetchAgents(
     request: Extract<SessionInboundMessage, { type: 'fetch_agents_request' }>
   ): Promise<void> {

packages/server/src/server/session.workspaces.test.ts

@@ -264,4 +264,29 @@ describe('workspace aggregation', () => {
       id: '/tmp/repo',
     })
   })
+
+  test('workspace update fanout for multiple cwd values is deduplicated', async () => {
+    const session = createSessionForWorkspaceTests() as any
+    session.workspaceUpdatesSubscription = {
+      subscriptionId: 'sub-dedupe',
+      filter: undefined,
+      isBootstrapping: false,
+      pendingUpdatesByWorkspaceId: new Map(),
+    }
+
+    const emitWorkspaceUpdateForCwd = vi.fn(async () => {})
+    session.emitWorkspaceUpdateForCwd = emitWorkspaceUpdateForCwd
+
+    await session.emitWorkspaceUpdatesForCwds([
+      '/tmp/repo',
+      '/tmp/repo/',
+      '  /tmp/repo  ',
+      '/tmp/repo/sub',
+      '/tmp/repo/sub/',
+    ])
+
+    expect(emitWorkspaceUpdateForCwd).toHaveBeenCalledTimes(2)
+    expect(emitWorkspaceUpdateForCwd).toHaveBeenNthCalledWith(1, '/tmp/repo')
+    expect(emitWorkspaceUpdateForCwd).toHaveBeenNthCalledWith(2, '/tmp/repo/sub')
+  })
 })