Single tool with excellent naming, descriptions, and output schema documentation. Tool name 'get_fear_greed_index' follows verb_noun convention and clearly signals read-only behavior. Description is comprehensive (227 chars, within 10-1024 baseline) and explains what the tool does, when to use it, and what it returns. Input schema is empty but appropriate for a parameter-free data fetch. Output schema is fully documented with Zod types and detailed field descriptions. Error handling provides actionable messages. Main limitation: tool lacks parameter validation rules and does not expose common LLM-friendly enhancements (batch operations, pagination, filtering).

• Add optional input parameters to enable filtering: time_period enum (e.g., 'current', '1_week', '1_month', '1_year') to let LLMs request specific historical comparisons without refetching all data.
• Return only structured output (remove the JSON stringified text field in content array). The outputSchema already defines the typed data, trust it.
• Add error recovery hints to catch blocks: 'HTTP 429: Rate limited. Retry after 60 seconds.' or 'Connection timeout: Check network or try again in 30 seconds.'
• Document in the tool description that results include current index + 7 indicators and are updated daily. Set LLM expectations about freshness and latency.
• Consider capping output fields if CNN's endpoint returns metadata or internal fields, strip audit timestamps, request IDs, or raw numeric codes not relevant to user queries.