id: data-boundaries
description: Public contracts, external-data normalization, and runtime validation at untrusted boundaries.
members:
  - data-boundaries.public-contract-stability
  - data-boundaries.normalize-external-data
  - data-boundaries.runtime-validation
applicability:
  technologies: [typescript, javascript]
  filePatterns: ['**/*.ts', '**/*.tsx', '**/*.js', '**/*.jsx']
  taskIntents: [api-boundary, external-data, contract-change, runtime-validation]
  exclusions: [internal-only, documentation-only, configuration-only]
dependencies: []