What problem does it solve? Designing a new XML document format involves dozens of decisions about naming, namespaces, schemas, and element-versus-attribute tradeoffs, and inconsistent choices produce formats that are hard to validate, parse, and extend. This Skill gives an AI agent Google's complete XML style guide so it can design or review machine-oriented XML formats against a single consistent rule set. ## Core Features & Use Cases - Format design guidance: Rules for reusing existing formats, choosing RELAX NG schemas, defining namespaces, and naming elements and attributes with lowerCamelCase. - Structure and value conventions: Constraints on mixed content, attribute limits, numeric and date value types, key-value pairs, binary data encoding, and processing instructions. - Elements vs. attributes decision criteria: Detailed considerations for deciding where each piece of data belongs, plus serialization guidelines for document instances. - Use Case: When drafting a new XML configuration or data interchange format, ask the agent to review the schema and instance documents against Google's naming, namespace, and validation conventions before publishing the format. ## Quick Start Review this XML schema and sample document against the Google XML style guide and list every naming, namespace, and structure violation.
