Single tool with minimal definition quality. Tool name 'getAuthorByArticleTitle' violates verb_noun convention (should be 'get_author_by_article_title'). Description is 34 chars, below the 50-char minimum for LLM clarity. Input schema present but parameter description is generic ('The title of the article'). No output schema documented. No error handling guidance. No parameter constraints (e.g., min/max length). Tool appears functional but lacks production-grade documentation and structure.

• Rename tool to 'get_author_by_article_title' (snake_case, verb_noun pattern). This enables LLMs to parse intent from the name alone.
• Expand description to 80-150 chars: 'Retrieve author information (name, email, bio, affiliation) for a given article title. Use this to find who wrote a specific article. Returns empty if article not found.'
• Document output schema with explicit fields: { author_id: string, author_name: string, email: string, bio: string, affiliation: string }. Include which fields are always present vs. optional.
• Add parameter constraints: articleTitle must be 1-500 characters, non-empty string. Optionally accept partial matches or exact-match-only flag.
• Add error handling: 'If article not found, returns { error: "article_not_found", suggestion: "Try search_articles() with partial title" }'. Guide LLM to recovery tools.