Server has 25 tools with complete input schemas and descriptions present for all. However, descriptions are generic and lack LLM-optimized guidance on WHEN to use each tool vs. alternatives. Parameter descriptions are minimal (avg ~30 chars, well below 72-char baseline). No output schemas documented. Error handling is absent, tools return raw API responses without recovery guidance. Tool names follow verb_noun convention well (initialize_client, list_labs, create_lab), but composition issues exist: console tools (open_console_session, close_console_session, send_console_command) should be unified into a single stateful session manager. No tool annotations (readOnlyHint, destructiveHint, idempotentHint) despite clear risk levels. Secrets (base_url, username, password) exposed as parameters in initialize_client, should use server-side injection.

• Move credentials (base_url, username, password) out of initialize_client parameters. Inject via environment variables (CML_BASE_URL, CML_USERNAME, CML_PASSWORD) or a server-side config file. Return only a success/failure status from initialize_client.
• Document output schemas for all tools. E.g., list_labs should return {labs: [{id: string, title: string, description: string, status: string}], total: number}. Include all fields needed for downstream tool calls (lab_id for get_lab_details, node_id for configure_node).
• Add error handling with recovery guidance. E.g., 'Lab not found. Call list_labs() to see available labs.' Categorize errors as retryable (network timeout) vs. user-fixable (invalid lab_id) vs. fatal (auth failure).
• Add tool annotations: mark delete_lab with destructiveHint=true; mark start_lab, stop_lab, create_lab, add_node, link_nodes, configure_node with idempotentHint=true (if they are idempotent) or false (if not). Mark all READ_ONLY tools with readOnlyHint=true.
• Unify console session tools. Wrap open_console_session, send_console_command, close_console_session into a single execute_console_commands tool that accepts {lab_id, node_id, commands: [string], auto_close: boolean}. Or document strict sequencing rules and add a session_id parameter to track state.