This is a comprehensive Office 365 integration with 33 well-defined tools. Strengths: all tools have explicit descriptions in Portuguese; Zod schemas are present for every tool with proper type definitions; tool naming follows verb_noun conventions consistently (list-, create-, send-, etc.); parameters are mostly well-described. Weaknesses: descriptions are inconsistent in length and detail across the suite; output schemas are not documented (responses formatted via separate formatters, but return structure is not declared to the LLM); error handling is generic (safeTool wrapper suppresses detail); no pagination or limit enforcement documented in tool descriptions for large result sets (list-emails, list-events accept 'top' but no guidance on max); parameter descriptions often lack format/constraint detail (e.g., 'ISO 8601' mentioned but no validation guidance); no actionable error messages visible in error paths. Naming is strong (configure, login, list-events, create-event, send-email, read-file-content are all clear), but some tools blur boundaries (read-file-content and read-shared-file-content are very similar; upload-file lacks a download-file counterpart). STDIO transport caps protocol readiness at 50, so overall score reflects definition quality only. Average per-tool score: 61.

• Document output schemas for every tool. In the tool description or a separate schema field, state the structure of the response: 'Returns an object { events: Array<{id, subject, start, end, attendees}>, count: number }.' This allows the LLM to plan downstream calls (e.g., pass event.id to update-event).
• Enhance error handling in safeTool wrapper. Catch specific error types and return structured errors with recovery guidance: { error: 'user_not_found', message: 'User with email [email protected] not found.', suggestion: 'Try search_users() with a partial name or domain.' }
• Add explicit constraints to parameter descriptions. E.g., change 'Número máximo de eventos (padrão: 20)' to 'Max 50 events per call (default: 20). Larger values risk context overflow.'
• Translate descriptions to English. Rewrite all 33 tool and parameter descriptions in English to improve LLM comprehension and support international users.
• Add tool annotations (readOnlyHint, destructiveHint, idempotentHint) to the Zod schemas. E.g., for delete-event, add .describe('...').hint('destructive'). This signals operation safety to the LLM without extra reasoning.
• Consolidate read-file-content and read-shared-file-content into a single tool with an optional driveId parameter. Simplify the LLM's tool selection.
• Add delete-file, batch_create_events, and batch_send_emails tools to support bulk operations without loops.
• Document pagination strategy. For list-* tools, state: 'Call with skip=0 and top=20 to fetch the first 20 items. Repeat with skip=20 to get the next page.' Provide an example of chaining list-emails calls.