/**
 * Env vars a diff stops reading, and the infrastructure that still sets them
 * (change: add-iac-code-binding).
 *
 * A name read in a changed code file at the base and read nowhere in the working tree is a
 * removed (or renamed) read. Each one is paired with the declaration sites that still set the old
 * name — the manifests an agent renaming `DATABASE_URL` in code would otherwise miss.
 *
 * Read-only and offline: base blobs via git, working-tree files, a `git grep` to confirm the name
 * is not read elsewhere, and the manifest scan of `env-declaration-scan.ts` (run only when a
 * removed read exists).
 */
import type { ChangedFile } from '../../types/index.js';
export interface StaleEnvDeclaration {
    /** The env var the diff no longer reads. */
    name: string;
    /** Infrastructure sites that still set it (key and location; never the value). */
    sites: Array<{
        ecosystem: string;
        resource: string;
        file: string;
        line: number;
    }>;
}
export interface EnvRenameCheck {
    /** Names read at the base in a changed file and read nowhere in the working tree. */
    removedReads: string[];
    stillSet: StaleEnvDeclaration[];
    boundaries: string[];
}
export declare function checkEnvRenames(root: string, baseRef: string, entries: ReadonlyArray<Pick<ChangedFile, 'path' | 'status' | 'oldPath'>>): Promise<EnvRenameCheck>;
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