feat(vision-handoff): implement vision for capable models and universal vision handoff

3 files changed, 13 insertions, 1 deletions

diff --git a/packages/host-bin/package.json b/packages/host-bin/package.json
index 65ea305..b5ab954 100644
--- a/packages/host-bin/package.json
+++ b/packages/host-bin/package.json
@@ -33,6 +33,7 @@
     "@dispatch/surface-loaded-extensions": "workspace:*",
     "@dispatch/surface-registry": "workspace:*",
     "@dispatch/transport-ws": "workspace:*",
-    "@dispatch/system-prompt": "workspace:*"
+    "@dispatch/system-prompt": "workspace:*",
+    "@dispatch/vision-handoff": "workspace:*"
   }
 }
diff --git a/packages/host-bin/src/main.ts b/packages/host-bin/src/main.ts
index 8633052..a5dabab 100644
--- a/packages/host-bin/src/main.ts
+++ b/packages/host-bin/src/main.ts
@@ -43,6 +43,7 @@ import { extension as toolWriteFileExt } from "@dispatch/tool-write-file";
 import { extension as toolYoutubeTranscriptExt } from "@dispatch/tool-youtube-transcript";
 import { createTransportHttpExtension } from "@dispatch/transport-http";
 import { createTransportWsExtension } from "@dispatch/transport-ws";
+import { extension as visionHandoffExt } from "@dispatch/vision-handoff";
 import type { ChildHandle } from "./collector-supervisor.js";
 import { createCollectorSupervisor } from "./collector-supervisor.js";
 import { configMapToAccess, envToConfigMap } from "./config.js";
@@ -204,6 +205,13 @@ async function boot(): Promise<void> {
   const extensions: Extension[] = [
     ...CORE_EXTENSIONS,
     createCredentialStoreExtension({ credentials }),
+    // vision-handoff activates AFTER credential-store (it resolves the
+    // credential-store service at activate time to find vision-capable models).
+    // Placed here, not in CORE_EXTENSIONS, so the service is available when it
+    // activates. The session-orchestrator resolves its service LAZILY
+    // (per-turn), so activation order between it and session-orchestrator
+    // doesn't matter.
+    visionHandoffExt,
     ...externalExtensions,
   ];
 
diff --git a/packages/host-bin/tsconfig.json b/packages/host-bin/tsconfig.json
index 2b1edf5..305274c 100644
--- a/packages/host-bin/tsconfig.json
+++ b/packages/host-bin/tsconfig.json
@@ -60,6 +60,9 @@
     },
     {
       "path": "../transport-ws"
+    },
+    {
+      "path": "../vision-handoff"
     }
   ]
 }