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MCP Server implementation with YouTube playlist management tools and prompts. Defines 8 tools for video/playlist operations and 2 prompts for AI-assisted curation
This server demonstrates solid definition quality with clear naming conventions, well-structured schemas using Zod validation, and comprehensive parameter descriptions. All 10 tools follow verb_noun naming patterns (search, create, delete, add, remove, get, curate, summarize). Schemas are consistently defined with type constraints and descriptions. However, output schemas are not explicitly documented in the tool definitions, and error handling lacks recovery guidance. The tool set is well-composed with minimal overlap, though some tools could benefit from richer error context.
Add a video to a playlist.
Add multiple videos to a playlist in sequence.
Create a new playlist in the authenticated YouTube account.
Fetch recommended guidance for building a themed playlist.
Delete a playlist by ID.
List playlists owned by the authenticated user.
List videos inside a playlist.
Output schemas not documented. Tools return formatted text responses, but the structure and fields available in responses are not explicitly documented in tool definitions. LLMs cannot plan downstream operations or extract structured data without knowing response schema.
Error handling lacks recovery guidance. No visible error classification (retryable vs fatal), no actionable error messages, and no suggestions for what the LLM should do next. For example, if a playlist is not found or if quota is exceeded, the response provides no recovery path.
| Scored | Grade | Overall | Spec posture | Rubric |
|---|---|---|---|---|
| 2026-09-22 | C | 65 | 2025-06-18+ | v2 |
| 2026-03-09 | F | 46 | - | v1 |
Remove a video from a playlist by video ID.
Search YouTube for videos matching a query.
Summarize the contents of a playlist in natural language.
Destructive operations (deletePlaylist) lack confirmation/dry-run support. No confirmation step documented or implemented before irreversible deletion. Agents can accidentally delete playlists without a chance to verify intent.
curatePlaylist description is vague. 'Fetch recommended guidance for building a themed playlist' does not clearly state that this tool returns AI-generated recommendations or how it differs from searchVideos. LLMs may conflate it with search functionality.
summarizePlaylist description lacks clarity on summarization approach. Does it use LLM summarization, metadata aggregation, or video description extraction? The method and any cost implications are not documented.
Pagination not explicitly documented for list tools. getMyPlaylists and getPlaylistItems accept maxResults but do not document pagination strategy (offset/cursor), total count in response, or how to retrieve next batch. LLMs cannot confidently paginate large result sets.
Tool annotations missing. Destructive tools (deletePlaylist) should be marked with destructiveHint=true. Read-only tools should have readOnlyHint=true. Idempotent operations should be marked accordingly. This metadata helps agents make safer decisions.