Critical gaps across naming, descriptions, and schemas. Tool definitions are inferred from code rather than explicitly registered with MCP schemas. Nine tools listed but only 2 unique implementations visible (delegate_to_pricing, delegate_to_purchasing, create_po in coordinator; get_price_history in pricing). Duplicate tool names (get_quotes appears twice, check_inventory twice, get_history once) indicate inconsistent registration. Descriptions are present but generic (10-60 chars, below 194-char baseline). Input schemas visible in code but lack proper JSON Schema type declarations and parameter descriptions. No output schemas documented. No error handling guidance. No tool annotations (readOnlyHint, destructiveHint). Coordinator agent uses Strands framework with @tool decorator, but actual MCP server registration code not visible, cannot verify tool definitions are properly exposed via MCP protocol.

• Consolidate duplicate tools: merge get_quotes variants into one canonical tool with clear parameter descriptions (sku: string, quantity: integer with min/max bounds).
• Add explicit output schemas for all tools. Example for delegate_to_pricing: {delegated_to: string, a2a_endpoint: string, task: {action, sku, quantity}, delegation_context: object, chain_depth: integer, scope: {tools: [string], read_only: boolean}}.
• Expand parameter descriptions to 50-150 chars with format/constraint hints. E.g., 'sku: Product SKU identifier (alphanumeric, 3-20 chars, e.g. SKU-12345)' instead of 'Product SKU identifier.'
• Add tool annotations: mark get_quotes, get_price_history, check_inventory with readOnlyHint=true; mark delegate_to_purchasing and create_po with destructiveHint=true.
• Document error recovery paths. For delegate_to_purchasing DENIED error, suggest: 'Amount exceeds delegation cap. Try with lower quantity or request higher cap from coordinator.'

Inferred effective spec: <=2025-11-25.

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