* fix lint and update config.example.json

cmd/picoclaw/internal/gateway/helpers.go

@@ -226,7 +226,8 @@ func setupCronTool(
 	// Create and register CronTool if enabled
 	var cronTool *tools.CronTool
 	if cfg.Tools.IsToolEnabled("cron") {
-		cronTool, err := tools.NewCronTool(cronService, agentLoop, msgBus, workspace, restrict, execTimeout, cfg)
+		var err error
+		cronTool, err = tools.NewCronTool(cronService, agentLoop, msgBus, workspace, restrict, execTimeout, cfg)
 		if err != nil {
 			log.Fatalf("Critical error during CronTool initialization: %v", err)
 		}

config/config.example.json

@@ -225,24 +225,41 @@
     }
   },
   "tools": {
+    "allow_read_paths": null,
+    "allow_write_paths": null,
     "web": {
+      "enabled": true,
       "brave": {
         "enabled": false,
         "api_key": "YOUR_BRAVE_API_KEY",
         "max_results": 5
       },
+      "tavily": {
+        "enabled": false,
+        "api_key": "",
+        "base_url": "",
+        "max_results": 0
+      },
       "duckduckgo": {
         "enabled": true,
         "max_results": 5
       },
       "perplexity": {
         "enabled": false,
-        "api_key": "pplx-xxx",
+        "api_key": "",
         "max_results": 5
       },
-      "proxy": ""
+      "glm_search": {
+        "enabled": false,
+        "api_key": "",
+        "base_url": "https://open.bigmodel.cn/api/paas/v4/web_search",
+        "search_engine": "search_std",
+        "max_results": 5
+      },
+      "fetch_limit_bytes": 10485760
     },
     "cron": {
+      "enabled": true,
       "exec_timeout_minutes": 5
     },
     "mcp": {
@@ -311,19 +328,84 @@
       }
     },
     "exec": {
-      "enable_deny_patterns": false,
+      "enabled": true,
-      "custom_deny_patterns": []
+      "enable_deny_patterns": true,
+      "custom_deny_patterns": null,
+      "custom_allow_patterns": null
     },
     "skills": {
+      "enabled": true,
       "registries": {
         "clawhub": {
           "enabled": true,
           "base_url": "https://clawhub.ai",
-          "search_path": "/api/v1/search",
+          "auth_token": "",
-          "skills_path": "/api/v1/skills",
+          "search_path": "",
-          "download_path": "/api/v1/download"
+          "skills_path": "",
+          "download_path": "",
+          "timeout": 0,
+          "max_zip_size": 0,
+          "max_response_size": 0
         }
+      },
+      "max_concurrent_searches": 2,
+      "search_cache": {
+        "max_size": 50,
+        "ttl_seconds": 300
       }
+    },
+    "media_cleanup": {
+      "enabled": true,
+      "max_age_minutes": 30,
+      "interval_minutes": 5
+    },
+    "append_file": {
+      "enabled": true
+    },
+    "cron_tool": {
+      "enabled": true
+    },
+    "edit_file": {
+      "enabled": true
+    },
+    "exec_tool": {
+      "enabled": true
+    },
+    "find_skills": {
+      "enabled": true
+    },
+    "i2c": {
+      "enabled": false
+    },
+    "install_skill": {
+      "enabled": true
+    },
+    "list_dir": {
+      "enabled": false
+    },
+    "message": {
+      "enabled": true
+    },
+    "read_file": {
+      "enabled": true
+    },
+    "spawn": {
+      "enabled": true
+    },
+    "spi": {
+      "enabled": false
+    },
+    "subagent": {
+      "enabled": true
+    },
+    "web_fetch": {
+      "enabled": true
+    },
+    "web_search": {
+      "enabled": true
+    },
+    "write_file": {
+      "enabled": true
     }
   },
   "heartbeat": {