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Found 2 Skills
Use when invalid data causes failures deep in execution, requiring validation at multiple system layers - validates at every layer data passes through to make bugs structurally impossible
HTTP Parameter Pollution (HPP) and JSON key duplication auditing across Express, Django, Flask, Spring, ASP.NET, and PHP backends, analyzing how front-end validators and back-end handlers resolve duplicate parameters. Use when auditing multi-layer validation and API gateways.