Server has 24 tools with basic schemas and descriptions, but significant quality gaps. Most tools have minimal descriptions (20-50 chars, below the 50-200 char baseline for A+ tools). Parameter descriptions are sparse or missing entirely. Output schemas are not documented. Many tools appear to be inferred from function files rather than explicitly registered with full definitions. Error handling is absent, no recovery guidance, no categorization of errors, no actionable messages. Tools like 'downloadVideo' and 'createSmartPlaylist' are destructive but lack confirmation patterns or dry-run support. Naming is inconsistent: some tools use verb_noun (getVideo), others use camelCase without clear action verbs (analyzeSentiment, extractTopics). No tool annotations (readOnlyHint, destructiveHint, idempotentHint) despite having both READ_ONLY and WRITE operations.

• Document output schemas for all tools. Specify field names, types, and which fields are needed for chaining (e.g., videoId, channelId). Include pagination info (total count, next_cursor) for list tools.
• Add confirmation/dry-run patterns to destructive tools (downloadVideo, createSmartPlaylist, optimizePlaylist). Implement a 'confirm' parameter or separate 'preview_*' variants so agents can review before executing.
• Implement structured error responses with actionable guidance. E.g., 'Video not found (videoId=xyz). Try search_videos() with a keyword.' Categorize errors as retryable, user-fixable, or fatal.
• Standardize naming: use verb_noun consistently (get_video, search_videos, analyze_sentiment, extract_topics). Replace generic verbs with specific ones (summarize_video instead of generateSummary).
• Add descriptions to all parameters explaining format, constraints, and valid values. E.g., 'parts: comma-separated list of video metadata parts (snippet, statistics, contentDetails, etc.)' or use enums for constrained values.