fix(task): respect agent task permission for nested sub-agents (#8111)

Author: malhashemi

packages/opencode/src/tool/task.ts

@@ -56,6 +56,9 @@ export const TaskTool = Tool.define("task", async (ctx) => {
 
       const agent = await Agent.get(params.subagent_type)
       if (!agent) throw new Error(`Unknown agent type: ${params.subagent_type} is not a valid agent type`)
+
+      const hasTaskPermission = agent.permission.some((rule) => rule.permission === "task")
+
       const session = await iife(async () => {
         if (params.session_id) {
           const found = await Session.get(params.session_id).catch(() => {})
@@ -76,11 +79,15 @@ export const TaskTool = Tool.define("task", async (ctx) => {
               pattern: "*",
               action: "deny",
             },
-            {
-              permission: "task",
-              pattern: "*",
-              action: "deny",
-            },
+            ...(hasTaskPermission
+              ? []
+              : [
+                  {
+                    permission: "task" as const,
+                    pattern: "*" as const,
+                    action: "deny" as const,
+                  },
+                ]),
             ...(config.experimental?.primary_tools?.map((t) => ({
               pattern: "*",
               action: "allow" as const,
@@ -146,7 +153,7 @@ export const TaskTool = Tool.define("task", async (ctx) => {
         tools: {
           todowrite: false,
           todoread: false,
-          task: false,
+          ...(hasTaskPermission ? {} : { task: false }),
           ...Object.fromEntries((config.experimental?.primary_tools ?? []).map((t) => [t, false])),
         },
         parts: promptParts,