feat: add settings for parallelToolCalls and enableSleeptime (#80)

Co-authored-by: Letta <noreply@letta.com>

src/agent/create.ts

@@ -28,6 +28,8 @@ export async function createAgent(
   updateArgs?: Record<string, unknown>,
   forceNewBlocks = false,
   skillsDirectory?: string,
+  parallelToolCalls = true,
+  enableSleeptime = false,
 ) {
   // Resolve model identifier to handle
   let modelHandle: string;
@@ -214,10 +216,8 @@ export async function createAgent(
     include_base_tools: false,
     include_base_tool_rules: false,
     initial_message_sequence: [],
-    // TODO: enable as default
-    parallel_tool_calls: true,
-    // TODO: enable via flag --sleeptime
-    // enable_sleeptime: true,
+    parallel_tool_calls: parallelToolCalls,
+    enable_sleeptime: enableSleeptime,
   });
 
   // Apply updateArgs if provided (e.g., reasoningEffort, contextWindow, etc.)

src/headless.ts

@@ -100,6 +100,8 @@ export async function handleHeadlessCommand(
       updateArgs,
       forceNew,
       skillsDirectory,
+      settings.parallelToolCalls,
+      settings.enableSleeptime,
     );
   }
 
@@ -139,6 +141,8 @@ export async function handleHeadlessCommand(
       updateArgs,
       false,
       skillsDirectory,
+      settings.parallelToolCalls,
+      settings.enableSleeptime,
     );
   }
 

src/index.ts

@@ -363,6 +363,8 @@ async function main() {
             updateArgs,
             forceNew,
             skillsDirectory,
+            settings.parallelToolCalls,
+            settings.enableSleeptime,
           );
         }
 
@@ -407,6 +409,8 @@ async function main() {
             updateArgs,
             false,
             skillsDirectory,
+            settings.parallelToolCalls,
+            settings.enableSleeptime,
           );
         }
 

src/settings-manager.ts

@@ -12,6 +12,8 @@ export interface Settings {
   uiMode: UIMode;
   lastAgent: string | null;
   tokenStreaming: boolean;
+  parallelToolCalls: boolean;
+  enableSleeptime: boolean;
   globalSharedBlockIds: Record<string, string>;
   permissions?: PermissionRules;
   env?: Record<string, string>;
@@ -34,6 +36,8 @@ const DEFAULT_SETTINGS: Settings = {
   uiMode: "simple",
   lastAgent: null,
   tokenStreaming: false,
+  parallelToolCalls: true,
+  enableSleeptime: false,
   globalSharedBlockIds: {},
 };