Three tools with basic schemas and descriptions, but significant gaps in parameter documentation and output schema clarity. Tool names follow verb_noun convention (watch, unwatch, list_watched), which is good. However, descriptions lack depth on prerequisites, return values, and error conditions. The 'allowed_senders' parameter in 'watch' has minimal guidance on format. No documented output schemas for any tool. Error handling and recovery guidance absent. Schemas are present but sparse, 'list_watched' has empty properties object, suggesting incomplete definition.

• Document output schema for each tool. Example: 'watch returns {success: boolean, subscription_id: string, message: string}'. This enables the agent to extract and use the subscription ID in follow-up calls.
• Expand 'allowed_senders' description: 'Array of Beeper user IDs (format: @user:beeper.local) allowed to send messages. Omit to allow all chat participants except this account.'
• Add error recovery guidance to 'watch': 'If chat_id is invalid, call list_watched() to see available chats. If permission denied, verify you are a participant in the chat.'
• Clarify side effects in 'watch' description: 'Starts a subscription to the chat. Messages will be delivered via notifications/claude/channel. Call unwatch() to stop.'
• Document 'list_watched' return structure: 'Returns {watched_chats: [{chat_id: string, allowed_senders: string[]}]}' so the agent knows what fields to expect.

Inferred effective spec: <=2025-11-25.

• Relies on Dynamic Client Registration (deprecated) - use Client ID Metadata Documents (CIMD)