The server defines 2 tools with adequate naming (verb_noun pattern) and clear, descriptive descriptions. However, parameter descriptions are sparse or missing entirely, input schemas lack type constraints (enums, min/max), and output schemas are not formally documented. The search_papers tool performs a WRITE operation but lacks idempotent hints or dry-run support. extract_info returns unstructured JSON strings instead of typed objects, forcing LLM parsing. No error handling guidance is present, failures return raw strings without recovery hints. Logging is present but not integrated with error responses.

• Add min/max bounds to 'max_results' in the schema (e.g., minimum: 1, maximum: 100) and document in the description: 'Maximum number of results to return (1-100, default 5).'
• Add minLength/maxLength constraints to 'topic': 'Research topic to search for (1-100 chars, alphanumeric + spaces).'
• Formally document output schemas. For search_papers, return a typed object: { papers: [{ id: string, title: string, authors: [string], published: string }], total: number }. For extract_info, return a typed PaperMetadata object instead of a JSON string.
• Add idempotentHint: false or destructiveHint: true annotation to search_papers to signal that it persists state.
• Implement structured error responses. Replace 'No papers database found' with: { error: 'no_database', message: 'Papers database not found. Call search_papers(topic=...) to create one.', next_steps: ['Try calling search_papers with a topic of interest'] }.
• Add a parameter description to extract_info's paper_id: 'The arXiv paper ID to extract information for (e.g., 2301.12345). Retrieve IDs from search_papers results.'
• Link resources to tools in prompt templates. Modify the generate_search_prompt to include: 'First, check available topics via the papers://folders resource. Then call search_papers for your topic.'
• Implement pagination or result limits for extract_info if summary fields are large. Cap the summary at 500 chars and include a truncated flag.

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

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