Secret taunts the AI will react to

• 33 - Stop slinging resources. If slinging is requested early and is immediately canceled it may mess up the strategy.
• 38 - Sling Resources. Human player only, stops any unit production except for civilian units.
• 100 - Forbids the AI to resign.
• 101 - Cancels the 100 taunt.
• 200 - Enables resource cheats - only works on 'hardest' difficulty.
• 222 - Same as 31 (give me your extra resources), but more likely to help (only taunt this if you really need it).
• 230 - Tells the AI to go for a monk rush (taunt only works on civs who have good monks).
• 231-238 - Chat 230+[enemy player number e.g. player 8 would be 238] to make the AI target this enemy for 10 minutes.
• 250 - Chats information about the current strategy.

^source