diff --git a/.changeset/export-missing-image-toolchoice-types.md b/.changeset/export-missing-image-toolchoice-types.md
new file mode 100644
index 0000000..0e0f005
--- /dev/null
+++ b/.changeset/export-missing-image-toolchoice-types.md
@@ -0,0 +1,5 @@
+---
+"@openrouter/agent": patch
+---
+
+Re-export `EasyInputMessageContentInputImage`, `OutputInputImage`, and `OpenAIResponsesToolChoiceUnion` from `@openrouter/sdk/models` so consumers can use these types without a direct SDK dependency.
diff --git a/.claude/settings.json b/.claude/settings.json
new file mode 100644
index 0000000..0265f65
--- /dev/null
+++ b/.claude/settings.json
@@ -0,0 +1,14 @@
+{
+  "hooks": {
+    "stop": [
+      {
+        "command": "pnpm run lint",
+        "blocking": true
+      },
+      {
+        "command": "pnpm run typecheck",
+        "blocking": true
+      }
+    ]
+  }
+}
diff --git a/src/index.ts b/src/index.ts
index 78673ad..04d6060 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -10,6 +10,7 @@ export type {
   ChatAssistantMessage,
   ChatMessages,
   EasyInputMessage,
+  EasyInputMessageContentInputImage,
   EasyInputMessageContentUnion1,
   EasyInputMessageRoleUnion,
   // Error event
@@ -24,11 +25,13 @@ export type {
   InputsUnion,
   InputText,
   InputVideo,
+  OpenAIResponsesToolChoiceUnion,
   OpenResponsesResult,
   // Output item types (StreamableOutputItem members)
   OutputFileSearchCallItem,
   OutputFunctionCallItem,
   OutputImageGenerationCallItem,
+  OutputInputImage,
   OutputMessage,
   OutputReasoningItem,
   OutputWebSearchCallItem,