RMCP defines 2 tools with basic schemas and descriptions, but critical quality issues limit production readiness. Tool naming is adequate but descriptions are minimal (23 - 50 chars, well below the 194-char baseline). Schema completeness is moderate, both tools declare required/optional parameters with types, but lack detailed parameter descriptions (none of the 3 parameters across both tools include descriptions in the visible input schema). Error handling guidance is absent. The bidirectional callback pattern is architecturally interesting but exposes complex state management (session_name, callback_id) that would benefit from clearer guidance on lifecycle, timeout semantics, and failure modes. Overall, the tools are functional but underdeveloped for production agent deployment.

• Expand create_r_callback_session description to ~150 - 200 chars: 'Create a bidirectional callback session allowing R scripts to invoke Python tools. Specify the session name, list of tools R is allowed to call, and session timeout (default 5 min). Returns session_id and callback_url for R to use. Sessions expire after the specified timeout and cannot be reused.'
• Add parameter descriptions to create_r_callback_session: session_name → 'Human-readable identifier for this session (e.g., "analysis_run_1"). Used in logs and debugging.'; allowed_tools → 'Array of tool names R is permitted to invoke (e.g., ["create_plot", "summarize_data"]). Tools not in this list will be rejected.'; timeout_minutes → 'Session lifespan in minutes (1 - 60, default 5). After timeout, the session is closed and callbacks are rejected.'
• Document the output schema for create_r_callback_session. Specify returned fields: session_id (string), callback_url (URI), created_at (ISO 8601), expires_at (ISO 8601).
• Expand handle_r_callback description to ~150 chars: 'Execute a tool on behalf of an R script using a callback session. The callback_id identifies the session; tool_name is the name of the tool to invoke; parameters is a JSON object matching the tool's input schema. Returns the tool result or an error with recovery guidance.'
• Add parameter descriptions to handle_r_callback: callback_id → 'Session ID returned by create_r_callback_session. Must match an active session.'; tool_name → 'Name of the tool to execute. Must be in the session's allowed_tools list.'; parameters → 'JSON object with the tool's input parameters (e.g., {"plot_type": "scatter", "title": "Data Overview"}). Schema varies by tool.'

Inferred effective spec: 2025-06-18+.

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