feat: increase maximum concurrency for parallel agents to enhance performance

src/app/workflow/engine.rs

@@ -320,9 +320,9 @@ pub fn run_workflow_tracked(
     }
 
     let concurrency_cap = if script.options.max_concurrency > 0 {
-        script.options.max_concurrency.min(8) // allow up to 8 parallel agents
+        script.options.max_concurrency.min(10) // allow up to 10 parallel agents
     } else {
-        4
+        10
     };
 
     let live_ref = live.as_ref();

src/tool/spawn.rs

@@ -43,8 +43,8 @@ impl Tool for SpawnAgents {
                 },
                 "max_concurrency": {
                     "type": "integer",
-                    "description": "Maximum number of agents to run simultaneously (default: 4, max: 8).",
-                    "default": 4
+                    "description": "Maximum number of agents to run simultaneously (default: 10, max: 10).",
+                    "default": 10
                 }
             },
             "required": ["agents"]
@@ -68,8 +68,8 @@ impl Tool for SpawnAgents {
 
         let max_concurrency = args.get("max_concurrency")
             .and_then(|v| v.as_u64())
-            .map(|v| v.min(8) as usize)
-            .unwrap_or(4);
+            .map(|v| v.min(10) as usize)
+            .unwrap_or(10);
 
         let agent_count = agents.len();
         let primitives: Vec<ScriptPrimitive> = agents