diff --git a/src/main/runtime/workspaces/workspace-host-notifications.test.ts b/src/main/runtime/workspaces/workspace-host-notifications.test.ts
new file mode 100644
index 00000000000..e05cd0779ed
--- /dev/null
+++ b/src/main/runtime/workspaces/workspace-host-notifications.test.ts
@@ -0,0 +1,31 @@
+import { describe, expect, it } from 'vitest'
+import type { Repo } from '../../../shared/repo-types'
+import type { RuntimeClientEvent } from '../../../shared/runtime-client-events'
+import { OrcaRuntimeService } from '../orca-runtime'
+import type { RuntimeStore } from '../runtime-store-contract'
+
+function catalogEventsFor(repo: Repo): RuntimeClientEvent[] {
+  const store: Pick<RuntimeStore, 'getRepos'> = { getRepos: () => [repo] }
+  // oxlint-disable-next-line typescript/consistent-type-assertions -- SAFETY: the catalog notification reads only repos.
+  const runtime = new OrcaRuntimeService(store as RuntimeStore)
+  const events: RuntimeClientEvent[] = []
+  runtime.onClientEvent((event) => events.push(event))
+  runtime.notifyWorktreeCatalogChangedForRemoteClients(repo.id)
+  return events.filter((event) => event.type === 'worktreesChanged')
+}
+
+const baseRepo: Repo = { id: 'r', path: '/r', displayName: 'r', badgeColor: 'blue', addedAt: 1 }
+
+describe('notifyWorktreeCatalogChangedForRemoteClients', () => {
+  it('tells remote clients about a local repo', () => {
+    expect(catalogEventsFor(baseRepo)).toHaveLength(1)
+  })
+
+  it('skips an SSH repo named only by its execution host', () => {
+    expect(catalogEventsFor({ ...baseRepo, executionHostId: 'ssh:target-1' })).toHaveLength(0)
+  })
+
+  it('skips an SSH repo named by its legacy connection id', () => {
+    expect(catalogEventsFor({ ...baseRepo, connectionId: 'target-1' })).toHaveLength(0)
+  })
+})
diff --git a/src/main/runtime/workspaces/workspace-host-notifications.ts b/src/main/runtime/workspaces/workspace-host-notifications.ts
index a69329ce337..563179c0394 100644
--- a/src/main/runtime/workspaces/workspace-host-notifications.ts
+++ b/src/main/runtime/workspaces/workspace-host-notifications.ts
@@ -176,7 +176,7 @@ export abstract class OrcaRuntimeWithNotifySshStateChanged extends OrcaRuntimeWi
   notifyWorktreeCatalogChangedForRemoteClients(repoId: string): void {
     this.invalidateWorktreeScanCacheForRepo(repoId)
     const matchingRepos = this.store?.getRepos().filter((repo) => repo.id === repoId) ?? []
-    if (matchingRepos.length !== 1 || matchingRepos[0]?.connectionId) {
+    if (matchingRepos.length !== 1 || getRepoRoutingConnectionId(matchingRepos[0])) {
       return
     }
     this.notifyWorktreesChangedForRemoteClients(repoId)