Server has 8 tools with mostly complete schemas (Zod-based) and reasonable descriptions. Naming follows verb_noun convention well (list_*, get_*, invite_*). However, critical issues undermine quality: (1) Output schemas are NOT documented, tools return JSON.stringify'd text without declaring expected fields, making it impossible for LLMs to plan downstream calls or extract data reliably. (2) Error handling is minimal and non-actionable, catch-all error messages like 'Error fetching workspaces: {message}' provide no recovery guidance. (3) No pagination documentation despite tools accepting page_size/current_page parameters, unclear if tools return total counts, next_cursor, or other pagination signals. (4) Missing parameter constraints, e.g., get_user_stats has numeric filters but no explicit min/max bounds. (5) Sensitive operations (invite_user) lack dry-run/confirmation patterns. (6) No audit logging or permission gates visible. Tools are well-named and most input schemas are present (via Zod), but the lack of output schema documentation and weak error handling are significant gaps for production use.

• Document output schemas for every tool. For list_all_users, declare: 'Returns array of {id, email, role, first_name, last_name, created_at, status}'. For analytics tools, declare: 'Returns {data: [{timestamp, cost, request_count, ...}], total_cost, average_cost_per_request, next_cursor?}'. This enables LLMs to chain tools without guessing field names.
• Replace generic error messages with actionable recovery guidance. E.g., invite_user catch block: 'Failed to invite user: {message}. Verify email is valid and not already invited. Call list_all_users to confirm.' Error responses should categorize as retryable vs user-fixable vs fatal.
• Add explicit pagination documentation. For list_workspaces: 'Returns up to page_size items. Include next_cursor in response if more items exist. Call again with next_cursor to fetch next page.' Declare whether list_all_users and list_configs support pagination or return all items unconditionally.
• Add numeric bounds to parameter descriptions. E.g., page_size: 'Number of results per page (1-100, default 20)', total_units_min: 'Minimum tokens (0-10000000)', cost_min: 'Minimum cost in cents (0-1000000)'. Use Zod.number().min(0).max(100) to enforce.
• Add idempotent/destructive hints to tool descriptions. invite_user: '[WRITE] Sends an invitation email and creates a pending user account. This operation is not reversible from the API, call list_all_users afterward to verify.' list_all_users: '[READ-ONLY]'.
• Implement dry-run for invite_user. Add optional 'dry_run' boolean parameter. When true, validate the request but do not send the invitation. Return what would be created, letting the agent confirm before executing.