DrMkdaddy

TypeScript, Node, Cloudflare Workers, Hono, Rust, Python. Specialist in deterministic parsing and validation for regulated formats; generalist across fintech, healthcare EDI, and e-invoicing.

Making regulated data formats (X12, ISO 20022, GS1, Peppol) safe to parse at the edge — fuzzing, adversarial corpora, and what LLM agents get wrong when you hand them parsed fields.

StanzaAPI: 13 micro-APIs plus open CC0 test-data corpora (valid and adversarial) for IBAN, X12, ISO 20022, GS1, VAT, LEI, UDI, Peppol, Factur-X, and CBAM.

Comparing notes on EDI / ISO 20022 / GS1 parsing, Cloudflare Workers architecture, or adversarial test data. Writing a parser for a regulated format? I'll send you hostile test cases.