Both tools lack input schemas entirely and have minimal descriptions. channel_open and channel_close are defined with descriptions under 200 chars but no parameter documentation, type definitions, or output schemas. No evidence of JSON Schema registration in the source code provided. Tool names lack clear verb-noun structure ('channel_open'/'channel_close' are vague about what 'channel' means in context). No error handling guidance, no idempotency markers, no security scoping. This server does not meet baseline quality for production agent use.

• Add explicit JSON Schema input definitions for both tools. At minimum, document any required parameters (e.g., port override, timeout, session identifier) with type, description, and constraints.
• Rename tools to be more specific: 'open_live_canvas_listener' and 'close_live_canvas_listener' clarify that these manage an HTTP listener for a specific UI overlay, not generic channels.
• Expand descriptions to 100-200 chars each. For channel_open: 'Start an HTTP listener on LIVE_CANVAS_PORT (default 8788) to receive feedback POSTs from the browser overlay. Only the calling session owns the port; other sessions block. Returns the listening port and connection status.' For channel_close: 'Stop the HTTP listener and release LIVE_CANVAS_PORT. Closes the feedback channel and rejects new overlay POSTs. Returns success status and cleanup details.'
• Document output schemas. channel_open should return {port: number, status: 'listening'|'error', message?: string}. channel_close should return {status: 'closed'|'error', message?: string}.
• Add error handling guidance in descriptions: 'If port is already in use, try channel_close() first or specify a different port. If permission denied, check process privileges. If network error, verify LIVE_CANVAS_PORT is not blocked by firewall.'