Server has 6 tools with basic descriptions and parameter schemas. However, descriptions are inconsistent in quality, some bilingual (English/German) and verbose, others minimal. Parameter descriptions exist but lack actionable constraints (enums, ranges, formats). No output schemas documented. Error handling is absent from visible code. Tool naming follows verb_noun pattern (generate_card, validate_card, discover, search, register, schema) which is good, but composition could be tighter, generate_card accepts a raw tools array rather than discovering/validating first. No evidence of idempotency guarantees, rate limiting, or permission gates. The register tool is destructive (WRITE) but lacks confirmation or dry-run support.

• Document output schemas for all tools. E.g., generate_card returns {name: string, description: string, tools: array, ...}. search returns {results: [{name, description, tools}], total: number, next_cursor?: string}.
• Add enums and constraints to parameters. E.g., pricing: enum [free, freemium, paid, open-source]; transport: enum [stdio, http, both]; categories: array of strings matching /^[a-z-]+$/.
• Rewrite descriptions in English only, 50 - 150 characters, action-focused. E.g., 'Generate a .well-known/mcp-server-card.json with metadata for agent discovery' instead of bilingual verbose text.
• Add confirmation/dry-run to register tool. Return {preview: card, action: 'register', confirm_token: '...'} and require a confirm_register(confirm_token) call before persisting.
• Implement error handling with recovery guidance. E.g., 'URL not found. Ensure the server is running and accessible at https://example.com/.well-known/mcp-server-card.json' for discover failures.