Critical failures across all dimensions. The single tool 'execute_skill_action' has a minimal description (67 chars, below the 194-char baseline), vague parameter descriptions, and no documented output schema. The implementation is a stub that prints JSON and exits, no actual tool logic is visible. Tool definition appears inferred rather than explicitly registered via MCP protocol. Parameters lack type constraints (no enums, ranges, or validation rules). No error handling, recovery guidance, or security considerations. This server does not meet production-grade standards.

• Explicitly register the tool via MCP protocol with a proper tool definition object (name, description, inputSchema). The current stub does not register tools, it only prints a JSON status message.
• Expand tool description to 150 - 250 characters. Include WHAT it does (AST-based code migration), WHEN to use it (refactoring large codebases), and WHAT it returns (files modified, transforms applied, status). Current 67-char description is insufficient.
• Add detailed parameter descriptions with constraints: 'migration_rule' should explain valid patterns (e.g., 'React class → hooks', 'TypeScript 4 → 5 syntax'); 'target_file_pattern' should document glob syntax and provide examples (e.g., 'src/**/*.tsx', 'lib/**/*.ts').
• Document the output schema explicitly. Specify that the response includes 'files_modified_count' (integer), 'ast_transforms_applied' (integer), and 'migration_status' (enum: MIGRATION_COMPLETED_TESTS_PASSING, MIGRATION_FAILED, PARTIAL_SUCCESS). Include what each field means.
• Add error handling guidance. Describe failure modes (invalid rule, no files matched, AST parse error) and recovery steps. E.g., 'If migration_status is MIGRATION_FAILED, check the migration_rule syntax or try a simpler pattern first.'