Three tools with complete input schemas and clear descriptions. All parameters are typed and documented. However, output schemas are not formally documented, responses are inferred from code. Tool names lack action verbs (search, news, places are nouns/gerunds, not verb_noun pattern). Parameter descriptions include example values (e.g., 'best espresso machine 2026'), which LLMs tend to reuse literally. No error recovery guidance or actionable error messages. Missing pagination support despite potential for large result sets. API key handling via _apiKey parameter violates secret-injection pattern, should use server-side injection.

• Rename tools to verb_noun pattern: 'search_web', 'search_news', 'search_places'. This clarifies intent and aligns with production baselines (90% of A+ tools start with action verbs).
• Remove _apiKey parameter and implement server-side secret injection. Accept API key via environment variable (SERPER_API_KEY) or configuration, never as a tool parameter.
• Document output schemas explicitly in tool descriptions. E.g., 'Returns: {answer_box: object|null, knowledge_graph: object|null, organic: [{title, link, snippet, position}]}'.
• Replace example values in descriptions with formal constraints. E.g., 'Search query (1-2048 chars, alphanumeric + spaces)' instead of 'e.g. "best espresso machine 2026"'.
• Add pagination support: accept 'offset' and 'limit' parameters, return 'total_results' and 'has_more' fields. Document result limits in descriptions (e.g., 'Returns up to 20 results per page').