Frances Vaughan

Frances Vaughan writes about JSON at the specification level, covering what the format officially supports, where it falls short, and how implementations interpret the rules differently. Her articles tend to be structured around a specific question, like whether a certain value type is valid or how a parser should handle duplicate keys. She prefers primary sources and will reference the spec directly when a behavior is ambiguous or contested.

She spends considerable time on issues that sit at the boundaries of the standard, such as number representation, null handling, and the inconsistent treatment of comments across parsers. Frances also looks at how real-world JSON deviates from spec compliance, particularly in APIs that accept relaxed syntax for convenience. Conformance testing results and documented parser differences frequently appear in her work because she believes readers benefit from seeing where tools disagree.

Her writing is informational and grounded in publicly available documentation, not a substitute for professional judgment about system design or data governance. She explains what the specification says and how tools behave, but stops short of advising readers on compliance, security, or architectural decisions. Anyone working in a regulated context should treat her articles as background reading rather than guidance.