Server has solid foundations: all 10 tools have descriptions (194 - 250 chars, within baseline), explicit Zod schemas with typed parameters, and tool annotations (readOnlyHint/destructiveHint). However, several tools lack output schema documentation, parameter descriptions are sometimes generic, and error messages do not guide recovery. Naming is verb-forward and clear (mysql_query, read_site_file, wp_cli_run). No critical security gaps detected, write operations are gated behind env vars (MYSQL_ALLOW_WRITES, FS_ALLOW_WRITES, WPCLI_ALLOW_WRITES). Main weaknesses: (1) output schemas not documented in tool definitions; (2) some parameters lack actionable constraints (e.g., wp_cli_run 'command' param has no enum or pattern); (3) error responses are generic ('Error: {message}') and do not suggest recovery steps.

• Add explicit output schema documentation to all tool definitions. Example: 'Returns {rowCount: number, fields: [{name, type}], rows: object[]}' for mysql_query. This enables LLMs to plan chained calls.
• Constrain wp_cli_run 'command' parameter with an enum or regex pattern. Explicitly list allowed commands (plugin, option, user, core, etc.) and reject eval/eval-file/shell at schema validation time, not just in description.
• Enhance error responses with actionable recovery guidance. Example: 'File not found at app/public/wp-config.php. Try search_site_files(pattern="wp-config") to locate it.' Categorize errors as retryable vs fatal.
• Add input validation to mysql_query: reject queries containing DROP, TRUNCATE, ALTER TABLE, or other dangerous patterns before execution. Return 'Query blocked: contains DROP statement. Use MYSQL_ALLOW_WRITES=true and explicit confirmation for destructive operations.'
• Implement a dry-run or confirmation pattern for write_site_file and mysql_query (when MYSQL_ALLOW_WRITES=true). Return a preview of changes and require explicit confirmation before applying, reducing accidental data loss.