Each tool has a clearly distinct purpose: audit_ai_visibility performs a comprehensive composite audit, check_ai_bot_access focuses solely on robots.txt and bot access, check_llm_mention checks LLM responses for brand mentions, and compare_competitors runs audits across multiple domains. No two tools overlap in functionality.

All tool names follow a consistent verb_noun pattern: audit_ai_visibility, check_ai_bot_access, check_llm_mention, compare_competitors. The verbs (audit, check, compare) clearly indicate the action, and nouns describe the target.

With 4 tools, the server covers its core domain—AI visibility auditing—without being excessive or insufficient. Each tool contributes a distinct operation: detailed audit, specific check, LLM search, and competitive comparison.

The tool surface is complete for the domain: it includes a comprehensive audit (robots, sitemap, JSON-LD, llms.txt), a specific robots.txt check, LLM mention analysis, and competitor comparison. No obvious missing operations like per-resource checks are needed, as they are covered by the composite audit.