feat(plugin): integrate omo_task tool and prevent recursion in subagents

Register omo_task tool in main plugin and disable it for explore/librarian agents to prevent infinite recursion.

- Export createOmoTask from src/tools/index.ts
- Initialize omo_task in main plugin with ctx
- Spread omo_task into builtinTools export
- Add recursion prevention: disable omo_task tool for explore agent config
- Add recursion prevention: disable omo_task tool for librarian agent config

🤖 GENERATED WITH ASSISTANCE OF [OhMyOpenCode](https://github.com/code-yeongyu/oh-my-opencode)

src/index.ts

@@ -36,7 +36,7 @@ import {
   getCurrentSessionTitle,
 } from "./features/claude-code-session-state";
 import { updateTerminalTitle } from "./features/terminal";
-import { builtinTools } from "./tools";
+import { builtinTools, createOmoTask } from "./tools";
 import { createBuiltinMcps } from "./mcp";
 import { OhMyOpenCodeConfigSchema, type OhMyOpenCodeConfig } from "./config";
 import { log } from "./shared/logger";
@@ -162,8 +162,13 @@ const OhMyOpenCodePlugin: Plugin = async (ctx) => {
 
   updateTerminalTitle({ sessionId: "main" });
 
+  const omoTask = createOmoTask(ctx);
+
   return {
-    tool: builtinTools,
+    tool: {
+      ...builtinTools,
+      omo_task: omoTask,
+    },
 
     "chat.message": async (input, output) => {
       await claudeCodeHooks["chat.message"]?.(input, output)
@@ -188,6 +193,19 @@ const OhMyOpenCodePlugin: Plugin = async (ctx) => {
         ...config.tools,
       };
 
+      if (config.agent.explore) {
+        config.agent.explore.tools = {
+          ...config.agent.explore.tools,
+          omo_task: false,
+        };
+      }
+      if (config.agent.librarian) {
+        config.agent.librarian.tools = {
+          ...config.agent.librarian.tools,
+          omo_task: false,
+        };
+      }
+
       const mcpResult = (pluginConfig.claude_code?.mcp ?? true)
         ? await loadMcpConfigs()
         : { servers: {} };

src/tools/index.ts

@@ -22,6 +22,8 @@ import { glob } from "./glob"
 import { slashcommand } from "./slashcommand"
 import { skill } from "./skill"
 
+export { createOmoTask } from "./omo-task"
+
 export const builtinTools = {
   lsp_hover,
   lsp_goto_definition,