Three tools with basic schemas and descriptions, but significant gaps in parameter documentation and output specification. Tool names follow verb_noun pattern (get, set, delete) which is good. Descriptions are present but minimal (10-60 chars, below the 50-200 char baseline for LLM optimization). Critical issue: no output schemas documented anywhere, LLMs cannot plan downstream calls or extract return values. Parameters lack descriptions for all fields. No error handling guidance. No idempotency or confirmation patterns for destructive operations.

• Add output schemas for all tools. Document return type (e.g., {"type": "object", "properties": {"value": {"type": "string"}, "ttl_remaining": {"type": "integer"}}} for get). This enables LLM planning.
• Expand tool descriptions to 80-150 chars. Example: 'Get a value from Momento cache by key. Returns the cached value and remaining TTL. Returns null if key not found or expired.'
• Add descriptions to all parameters. Example for 'key': 'Cache key (1-512 chars, alphanumeric + underscore). Case-sensitive.' For 'ttl': 'Time-to-live in seconds (1-3600). Omit for no expiration.'
• Add error handling guidance. Example: 'If key not found, returns {"value": null, "error": "key_not_found"}. Try set() first if this is a new key.'
• Add idempotency guarantee and confirmation pattern for delete. Document: 'Idempotent, safe to retry. Consider calling with dry_run=true first to confirm the key exists.'