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Validation

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stacks-validation · Native Stacks · model-invoked

Use when implementing validation in Stacks - type guards (isString, isNumber, isBoolean, isObject, isArray, isFunction, etc.), numeric checks (isPositive, isEven, isInteger), the schema builder for model attribute validation, or request validation. Covers @stacksjs/validation.

Read the skill for the implementation workflow and its current signatures. The Native capabilities catalog maps the package to source and retained evidence; driver limits are explicit.

Inside the skill

  • Key Paths
  • Architecture
  • Type Guards (index.ts)
  • Extended Type Guards (is.ts)
  • Numeric Checks (is.ts)
  • Schema Builder (schema.ts)
  • Model Validation (validator.ts)
  • Error Reporter (reporter.ts)
  • Error Reporter Contract (from rules.ts)
  • Re-exports from @stacksjs/ts-validation
  • Validation Types (types/index.ts)
  • Gotchas
  • Request, conditional and file validation

Using it

This skill is model-invoked. Your agent can select it for matching tasks, and you can call it directly.

/stacks-validation

Source: stacks-validation/SKILL.md.

It ships in @stacksjs/defaults with its supporting files. Run buddy setup:ai to refresh the agent setup. Override it per project with app/Skills/stacks-validation/SKILL.md. See Using skills.