# Function validateExpressions

Workflows exports - Workflow engine with parallel execution Split from index.ts for file size compliance (Issue #285)

- validateExpressions(input: unknown, context: WorkflowExecutionContext): string[]

  Validates that all expressions in a value can be resolved. Does not actually resolve them, just checks validity.

  #### Parameters

  - input: unknown

    Value containing potential expressions

  - context: WorkflowExecutionContext

    Execution context

  #### Returns string[]

  Array of validation errors (empty if all valid)

  - Defined in packages/nexus-agents/src/workflows/expression-resolver.ts:188