Two tools with basic descriptions and partial schemas. set_delay has clear naming and description (68 chars), but lacks output schema documentation. get_random_number has good description (97 chars) and parameter defaults, but output is undocumented. Both tools have input schemas with typed parameters and descriptions, meeting baseline requirements. However, neither tool documents what they return, and error handling is absent. No tool annotations (readOnlyHint/destructiveHint) despite set_delay being a WRITE operation. Composition is reasonable, tools are single-purpose, but output chaining is not documented.

• Document output schemas for both tools. set_delay should return {success: boolean, message: string}; get_random_number should return {value: integer, min: integer, max: integer}.
• Add tool annotations: set_delay with destructiveHint=true (modifies server state); get_random_number with readOnlyHint=true.
• Add parameter constraints to descriptions: 'delayInSeconds: integer, 0 - 3600 seconds' and 'retryIntervalInSeconds: integer, 1 - 300 seconds'.
• Implement error handling: validate inputs (reject negative delays), return structured errors like {error: 'invalid_delay', message: 'Delay must be 0 - 3600 seconds', received: -5}.
• Refactor state management: avoid static mutable fields. Use request-scoped context or a thread-safe configuration service to ensure idempotency and thread safety.

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

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