The server provides 5 well-structured tools for Pyth Network price data access. Tool names follow verb_noun convention (get_*) and are clear about their intent. All tools have descriptions (90-150 chars, within acceptable range). Input schemas are present and properly typed with enums for constrained options. However, there are notable gaps: output schemas are not documented, error handling is basic (returns generic error objects), and parameters lack some constraints. The FastMCP implementation shows good httpx error handling, but response field naming and chaining support could be improved.

• Document output schemas for all tools. Specify the structure of 'parsed' fields, binary proof objects, and price update responses. Include sample JSON structures in tool documentation.
• Implement structured error responses with error codes, categories (retryable, invalid_input, rate_limit, not_found), and recovery guidance. E.g., {"error": "invalid_price_id", "code": "INVALID_INPUT", "message": "Price ID 'abc' not found. Valid IDs must be 66 hex characters.", "retry": false}
• Add parameter constraints to descriptions: 'ids' should specify format (e.g., '66-character hex strings'), 'publish_time' should clarify valid range (e.g., 'Unix timestamp in seconds, typically within last N days'). Use JSON Schema pattern fields for validation.
• Consolidate shared parameters (encoding, parsed, include_binary, ignore_invalid_price_ids) into optional defaults or a shared options object to reduce parameter sprawl across 4 tools.
• Add examples to tool descriptions showing expected invocations and illustrative response structures (without disclosing real IDs or sensitive values).
• Implement rate-limit and timeout handling: set explicit HTTP timeouts (already 30s, good), but handle 429/rate-limit responses with Retry-After guidance and expose rate-limit headers in responses.
• Consider adding pagination/limit support if Pyth API returns large datasets (e.g., if get_price_feeds can return thousands of feeds, add limit and cursor parameters).