diff --git a/packages/opencode/src/tool/task.ts b/packages/opencode/src/tool/task.ts
index f2a83507fa6..af130a70d91 100644
--- a/packages/opencode/src/tool/task.ts
+++ b/packages/opencode/src/tool/task.ts
@@ -64,6 +64,7 @@ export const TaskTool = Tool.define("task", async (ctx) => {
       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 hasTodoWritePermission = agent.permission.some((rule) => rule.permission === "todowrite")
 
       const session = await iife(async () => {
         if (params.task_id) {
@@ -75,11 +76,15 @@ export const TaskTool = Tool.define("task", async (ctx) => {
           parentID: ctx.sessionID,
           title: params.description + ` (@${agent.name} subagent)`,
           permission: [
-            {
-              permission: "todowrite",
-              pattern: "*",
-              action: "deny",
-            },
+            ...(hasTodoWritePermission
+              ? []
+              : [
+                  {
+                    permission: "todowrite" as const,
+                    pattern: "*" as const,
+                    action: "deny" as const,
+                  },
+                ]),
             ...(hasTaskPermission
               ? []
               : [
@@ -131,7 +136,7 @@ export const TaskTool = Tool.define("task", async (ctx) => {
         },
         agent: agent.name,
         tools: {
-          todowrite: false,
+          ...(hasTodoWritePermission ? {} : { todowrite: false }),
           ...(hasTaskPermission ? {} : { task: false }),
           ...Object.fromEntries((config.experimental?.primary_tools ?? []).map((t) => [t, false])),
         },