Three well-named tools with clear, detailed descriptions (150 - 250 chars each). All tools have complete input schemas with typed properties and required fields. Naming follows verb_noun pattern (list_, get_, search_). Descriptions explain WHAT, WHEN, and domain context (US politics, keyless, ~250 markets). Output structure is documented in descriptions. However, parameter descriptions lack format constraints (e.g., 'limit' has no min/max bounds stated), and no output schema is formally documented. Error handling is basic (generic error objects). No tool annotations (readOnlyHint, idempotentHint) despite all being read-only operations.

• Add min/max constraints to parameter descriptions: 'limit: integer, 1 - 60 (default 25)' and 'query: non-empty string, max 100 chars'.
• Document output schema for each tool. E.g., list_markets returns {count: number, markets: [{id, name, short_name, url, contract_count, contracts: [{id, name, implied_probability_pct, ...}]}]}.
• Add readOnlyHint and idempotentHint annotations to all three tools in the tool definition.
• Enhance error messages with recovery guidance: 'Market 9999 not found. Try list_markets() to see available markets or search_markets(query="...") to find by name.'
• Add pagination support to list_markets: accept offset/limit and return total_count so agents can iterate through all ~250 markets.