Three tools with complete input schemas and clear descriptions. Naming follows verb_noun pattern (search_reddit, browse_subreddit, get_post_comments). Descriptions are 150-250 chars, within baseline range (p10=34, p90=392). All parameters have type definitions and descriptions. However, output schemas are not formally documented, only inferred from code comments. Error handling is basic (throws Error objects without recovery guidance). No tool annotations (readOnlyHint, etc.). Parameter descriptions lack format constraints (e.g., 'limit: 1-25' stated in description but not as JSON Schema min/max). No pagination support despite RSS feed limitations (~25 results max).

• Add formal JSON Schema output definitions for each tool. Document return type as { type: 'object', properties: { source: { type: 'string' }, count: { type: 'number' }, posts: { type: 'array', items: { type: 'object', properties: { title, author, link, published, excerpt } } } } }.
• Add minimum/maximum constraints to numeric parameters in JSON Schema: limit { type: 'number', minimum: 1, maximum: 25, default: 25 }. Remove redundant text from descriptions.
• Enhance error messages with recovery guidance. E.g., throw new Error('subreddit is required. Try search_reddit() to find a subreddit, or use "all" for cross-Reddit feed.').
• Add readOnlyHint: true to all three tools in the TOOLS array to signal to clients that these are safe, cacheable, and idempotent.
• Document RSS feed limitations (no nested comments, no scores, ~25 max) in tool descriptions and return a note field in responses explaining when to use the full OAuth API instead.