/**
 * WAW054: ECR Tag Mutability Not Immutable
 *
 * Flags ECR repositories without ImageTagMutability: IMMUTABLE — mutable tags
 * let a previously deployed/scanned/signed tag (e.g. "prod") silently point at
 * different image content later.
 */
import type { PostSynthCheck, PostSynthContext, PostSynthDiagnostic } from "@intentius/chant/lint/post-synth";
export declare function checkEcrTagImmutability(ctx: PostSynthContext): PostSynthDiagnostic[];
export declare const waw054: PostSynthCheck;
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