Good foundation with clear naming and mostly complete schemas. Tool names follow verb_noun pattern (search_designs, get_design, list_components, compare_designs, add_design, reindex). Descriptions are present and contextual (avg ~150 chars). Input schemas use Zod with proper types and enums. However, output schemas are undocumented, LLMs cannot predict response structure. Error handling is minimal (generic fail() wrapper). Parameters lack some constraints (e.g., 'query' in search_designs has no length limit; 'folder' in add_design has no path validation guidance). Missing tool annotations (readOnlyHint, destructiveHint). add_design and reindex are write operations but lack confirmation/dry-run patterns.

• Document output schemas for all tools. Add a 'Returns' section to each tool description listing fields, types, and examples. E.g., search_designs returns [{slug: string, title: string, domain: string, tags: string[], snippet?: string, thumbnail_url: string}].
• Add tool annotations: readOnlyHint=true for search_designs, get_design, list_components, compare_designs, list_tags; destructiveHint=true for add_design, reindex. Enables clients to warn users before executing risky operations.
• Implement confirmation pattern for write operations. add_design should accept a 'dry_run' parameter (default false) that returns what would be captured without writing. reindex should require explicit 'confirm=true' parameter.
• Tighten parameter constraints. Add maxLength to 'query' (e.g., 500 chars). Add pattern validation to 'folder' (must be absolute path, no .. traversal). Document why limit=15 for list_components (token budget, UI rendering).
• Enhance error messages with recovery guidance. E.g., 'Design slug "xyz" not found. Available slugs: [list]. Try search_designs() to find by title or tags.' Categorize errors: retryable (network timeout), user-fixable (invalid slug), fatal (disk full).