Kubernetes MCP server has basic tool definitions with schemas and descriptions, but significant quality gaps limit production readiness. All 7 tools have descriptions (10-70 chars, mostly short) and input schemas with types. However, descriptions lack actionable context for LLM selection, parameter descriptions are minimal, output schemas are undocumented, and error handling is absent. No tool annotations (readOnlyHint/destructiveHint) despite clear risk distinctions. Naming is verb-first and clear (list_pods, get_pod, create_deployment), following conventions. Critical issue: get_pod and get_deployment descriptions say 'default namespace' but list_pods accepts a namespace parameter, inconsistent API surface. No pagination support on list_pods despite returning potentially large result sets. Error responses are plain text concatenation, not structured.

• Add tool annotations: mark create_deployment and patch_deployment with destructiveHint=true; mark all read tools with readOnlyHint=true. Use mcp.WithDestructiveHint() and mcp.WithReadOnlyHint() in tool definitions.
• Document output schemas for all tools. Define structured return types (e.g., Pod object with name, status, creationTimestamp fields) instead of plain text. Update handlers to return mcp.NewToolResultJSON() with typed objects.
• Add pagination to list_pods: introduce limit (default 20, max 100) and offset parameters. Return total_count and next_offset in response. Describe in tool description: 'Returns up to 20 pods per call; use offset to paginate.'
• Unify namespace handling: add optional namespace parameter to get_pod and get_deployment (default 'default'). Update descriptions to clarify namespace scope. Ensure all three tools can operate on any namespace.
• Enhance error messages with recovery guidance. E.g., 'Pod not found in namespace kube-system. Call list_pods(namespace="kube-system") to see available pods.' Use structured error objects with error_code, message, and suggested_action fields.