fix: bym optimizing

utils/tools/SendAvatarTool.js

@@ -41,5 +41,5 @@ export class SendAvatarTool extends AbstractTool {
     return `the ${pictures.length > 1 ? 'users: ' + qq + '\'s avatar' : 'avatar'} has been sent to group ${target}`
   }
 
-  description = 'Useful when you want to send the user avatar to the group. Note that if you want to process user\'s avatar, it is advisable to utilize the ProcessPictureTool and input the qq of target user.'
+  description = 'Useful when you want to send the user avatar to the group. Note that if you want to process user\'s avatar, it is advisable to utilize the ProcessPictureTool and input the qq of target user. If no extra description needed, just reply <EMPTY> at the next turn'
 }

utils/tools/SendBilibiliTool.js

@@ -63,7 +63,7 @@ export class SendVideoTool extends AbstractTool {
     }
   }
 
-  description = 'Useful when you are allowed to send a video. You must use searchVideo to get search result and choose one video and get its id'
+  description = 'Useful when you are allowed to send a video. You must use searchVideo to get search result and choose one video and get its id.  If no extra description needed, just reply <EMPTY> at the next turn'
 }
 
 export async function getBilibili (bvid) {

utils/tools/SendMessageToSpecificGroupOrUserTool.js

@@ -46,5 +46,5 @@ export class SendMessageToSpecificGroupOrUserTool extends AbstractTool {
     }
   }
 
-  description = 'Useful when you want to send a text message to specific user or group'
+  description = 'Useful when you want to send a text message to specific user or group.  If no extra description needed, just reply <EMPTY> at the next turn'
 }

utils/tools/SendMusicTool.js

@@ -34,5 +34,5 @@ export class SendMusicTool extends AbstractTool {
     }
   }
 
-  description = 'Useful when you want to share music. You must use searchMusic first to get the music id'
+  description = 'Useful when you want to share music. You must use searchMusic first to get the music id.  If no extra description needed, just reply <EMPTY> at the next turn'
 }

utils/tools/SendPictureTool.js

@@ -56,5 +56,5 @@ export class SendPictureTool extends AbstractTool {
     }
   }
 
-  description = 'Useful when you want to send one or more pictures.'
+  description = 'Useful when you want to send one or more pictures.  If no extra description needed, just reply <EMPTY> at the next turn'
 }