Module complexity 

Query complexity analysis and DoS prevention.

Structs

ComplexityConfig

Configuration for query complexity limits.

QueryMetrics

Metrics returned by the AST-based analyzer.

RequestValidator

AST-based GraphQL request validator.

Enums

ComplexityValidationError

GraphQL query validation error types (depth, complexity, aliases).

Constants

DEFAULT_MAX_ALIASES

Default maximum number of aliases per query (alias amplification protection).

MAX_VARIABLES_COUNT

Maximum number of variables per request (DoS protection).