18 tools with basic schemas and descriptions, but significant gaps in parameter documentation, error handling, and output schema clarity. Most tools lack descriptions of what they return. Parameter descriptions are minimal (e.g., 'Name of the tmux session' without format/constraint guidance). No error recovery guidance. Destructive tools (kill_session, execute_libtmux_command) lack confirmation patterns. Tool naming is generally verb-first but some are redundant (switch_window, switch_window_by_name, switch_window_by_index). Output schemas inferred from models.py but not explicitly documented in tool definitions. Average tool description ~60 chars, below the 194-char baseline for A+ tools.

• Add explicit output schema documentation to every tool. Example: 'Returns TmuxSession with fields: session_id (str), session_name (str), windows (list of TmuxWindow), session_attached (bool).'
• Consolidate switch_window* tools into a single 'switch_window' tool that accepts either window_name (string) or window_index (integer) as mutually exclusive parameters, with clear documentation of which to use.
• Implement confirmation pattern for destructive tools: add a 'confirm' boolean parameter (default false) to kill_session() and execute_libtmux_command(). When false, return a summary of what would happen; when true, execute.
• Enhance error handling with recovery guidance. When a session/window/pane is not found, return structured error: {'error': 'not_found', 'message': 'Session X not found', 'suggestions': ['Try list_sessions() to see available sessions', 'Available sessions: [...]']}.
• Add parameter constraints to descriptions. Example: 'session_name (string, 1-255 chars, alphanumeric + hyphens/underscores), the name of the tmux session to query.'

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

• Relies on Logging (deprecated) - log to stderr or use OpenTelemetry