Server has 27 tools with schemas and descriptions present, but quality is inconsistent. Naming follows verb_noun convention well (list_*, get_*, create_*, update_*, delete_*). However, descriptions are bilingual (Chinese/English) and often generic (e.g., 'List all Zones' is 14 chars, below the 20-char minimum). Parameter descriptions exist but lack detail on constraints, formats, and valid ranges. Output schemas are not documented, LLMs cannot predict response structure. Error handling is absent from visible code. No tool annotations (readOnlyHint, destructiveHint) despite clear risk levels. Composition is reasonable (single responsibility per tool), but chaining support is weak, responses don't guarantee all IDs needed for downstream calls.

• Expand all tool descriptions to 50 - 200 characters. Example: 'list_zones' → 'List all domains (zones) in your Cloudflare account. Call this first to get zone_id for other operations.' This provides context for selection and dependency hints.
• Add output schema documentation to every tool. Example: 'Returns: {id: string, type: string, name: string, content: string, ttl: integer, proxied: boolean}'. Use JSON Schema format in tool definition.
• Add tool annotations to all tools. Use readOnlyHint: true for GET/LIST operations, destructiveHint: true for DELETE operations, idempotentHint: true for operations safe to retry. This enables LLM reasoning about safety.
• Specify enum values and ranges for parameters. Example: record_type should list valid values (A, AAAA, CNAME, MX, TXT, NS, SOA, SRV, CAA). ttl should specify range (1 - 86400 or 1 for auto). Add these to parameter descriptions.
• Add error recovery hints to tool descriptions. Example: 'If zone_id is invalid, call list_zones() to find the correct ID.' This guides LLM multi-step planning and reduces failed retries.