Discord Client

This tool interacts with the Discord API v10 to list channels in a guild, send messages to a channel, and retrieve channel message history using an HTTP execution backend. It accepts inputs op (listChannels, sendMessage, getHistory), botToken, guildId, channelId, content, and limit, then performs the appropriate HTTP GET or POST calls and parses the JSON responses. The final output must strictly validate against the system-provided structured output schema.