diff --git a/dist/core/sdk.js b/dist/core/sdk.js
index 0000000..1111111 100644
--- a/dist/core/sdk.js
+++ b/dist/core/sdk.js
@@ -441,6 +441,8 @@ export async function createAgentSession(options = {}) {
             }
             return key;
         },
+        // PATCH: Pass extraParams through for provider-specific features (e.g., GLM-4.7 thinking mode)
+        extraParams: options.extraParams,
     });
     time("createAgent");
     // Restore messages if session has existing data
diff --git a/dist/core/sdk.d.ts b/dist/core/sdk.d.ts
index 0000000..1111111 100644
--- a/dist/core/sdk.d.ts
+++ b/dist/core/sdk.d.ts
@@ -79,6 +79,10 @@ export interface CreateAgentSessionOptions {
     sessionManager?: SessionManager;
     /** Settings manager. Default: SettingsManager.create(cwd, agentDir) */
     settingsManager?: SettingsManager;
+    /**
+     * Extra params to pass to the provider API (e.g., Z.AI GLM thinking mode params).
+     */
+    extraParams?: Record<string, unknown>;
 }
 /** Result from createAgentSession */
 export interface CreateAgentSessionResult {