Server has 8 well-named tools with complete input schemas and descriptions. All tools follow verb_noun naming (get_*) and are READ_ONLY. Schemas include proper types, descriptions, and constraints (min/max for numeric params, enums for time filter). However, output schemas are not documented, LLMs cannot predict response structure. Parameter descriptions are adequate but generic (e.g., 'ID of the post' lacks format guidance). No error handling guidance visible in tool definitions. Missing tool annotations (readOnlyHint present implicitly via Risk field, but not in MCP schema). Tool composition is sound, each tool has one responsibility and names distinguish clearly (hot vs new vs top vs rising posts).

• Document output schemas for all tools. Example: 'Returns an object with fields: posts (array of {id, title, author, score, created_at, url}), total_count (number)'. This enables LLMs to extract and chain data.
• Add format constraints to parameter descriptions. Example: 'subreddit_name: Name of the subreddit (alphanumeric, no spaces, case-insensitive, e.g., Python, news)'. Use enums or regex patterns for strict validation.
• Add error recovery guidance to tool descriptions. Example: 'If subreddit not found, try search_subreddits() with a partial name or check spelling.' This guides agent self-correction.
• Expose readOnlyHint in tool definitions via MCP schema. Add 'readOnlyHint: true' to each tool's capabilities declaration so clients can infer safety properties automatically.
• Clarify result limits and pagination in descriptions. Example: 'Returns up to limit posts (default 10). For large result sets, consider pagination or filtering by time range to reduce token usage.'