Critical failures across all dimensions. Tool definitions are inferred from test script only, no explicit MCP server implementation visible. No input schemas, parameter descriptions, or output schemas documented. Tool descriptions are trivial (5-30 chars), far below the 10-1024 char baseline. No error handling, validation, or recovery guidance. No security controls visible. This appears to be a proof-of-concept test harness, not a production MCP server.

• Create explicit MCP server implementation with proper tool registration, capability negotiation, and JSON Schema input/output definitions for all 12 tools.
• Expand all tool descriptions to 50-200 chars, following pattern:tool-description. Example: 'approvals.get' → 'Retrieve approval request details including status, requester, approver, and timestamps. Use after approvals.request to check progress or after approvals.list to get full details.'
• Define complete input schemas with typed parameters, enums for constrained values, and descriptions for each parameter. Example: approvals.request should specify approval_type enum, required_approvers array, and deadline format.
• Add output schemas documenting returned fields, types, and pagination (limit/offset/total_count for list operations). Ensure downstream tools receive IDs needed for chaining (e.g., approval_id for approvals.get).
• Implement error handling per pattern:recovery-guide: categorize errors as retryable/user-fixable/fatal, include invalid values and constraints in messages, and provide actionable next steps (e.g., 'Approval not found. Call approvals.list() to see available approvals.').