# IPolicyValidationContextBeta1

Context available to the validation plugin.

- Source: [`core/lib/validation/validation.ts`](https://github.com/aws/aws-cdk/blob/v2.275.0/packages/aws-cdk-lib/core/lib/validation/validation.ts#L181)
- Type last changed: v2.258.0 · 4 Jun 2026

## Properties

- `appConstruct`: [IConstruct](/cdk/api/v2/docs/constructs.IConstruct.html) — The root construct of the app being validated.

  Plugins may walk this tree for typed L1 property access and token
  resolution via `Stack.of(node).resolve()`. The tree is finalized and
  should be treated as read-only; mutations have no effect on synthesized
  output.

- `templatePaths`: string[] — The absolute path of all templates to be processed.