K-STAY provides 16 well-named, read-only tools with consistent verb_noun naming (get_*, search_*). All tools have descriptions (avg ~150 chars, within baseline 194). However, input schemas are partially visible but lack complete parameter descriptions in the source code provided. Output schemas are not documented. Error handling is minimal, no recovery guidance or actionable error messages. Tools are domain-focused (Korean tourism/lodging) but lack composition guidance for multi-step workflows. No tool annotations (readOnlyHint, etc.) despite all being read-only.

• Add explicit output schemas for all tools. Document the structure of returned objects (e.g., search_hanok_listings returns array of {name, lat, lng, address, ...}). This enables LLMs to chain tools and extract fields correctly.
• Provide enum lists for all constrained parameters. E.g., get_stats 'category' should list all valid values: ['foreigner_city_homestays', 'hanok_experience', 'tourist_accommodations', 'rural_homestays', 'tourist_pensions', 'all']. Avoid free-form strings.
• Add readOnlyHint: true to all tool schemas. Since all 16 tools are read-only and idempotent, declare this explicitly so LLMs know they are safe to retry without side effects.
• Document error scenarios and recovery paths. E.g., 'If sido is invalid, call get_stats with no sido parameter to see available regions.' This guides LLMs to self-correct.
• Clarify pagination and result limits. E.g., 'Default limit=100. Max 5000. If results are truncated, use offset/limit to paginate.' Include total_count in responses so LLMs know if more data exists.