/**
 * Deep-scan a parsed `.claude/settings.json` object for any
 * `_managedBy: "cadence"` entry — the marker the host adapter writes on the
 * lifecycle hooks it installs. Shared by `doctor`'s `checkHostHooks` and the
 * `config explain` gather so the two never drift.
 */
export declare function hasManagedCadence(value: unknown): boolean;
/**
 * Best-effort: whether the Claude Code adapter's CADENCE-managed hook entries
 * are present in `<root>/.claude/settings.json`. Returns `false` on an absent,
 * unreadable, or invalid-JSON file — never throws. (Callers that need to
 * distinguish *invalid JSON* from *no marker* — like `doctor` — read the file
 * themselves and reuse {@link hasManagedCadence}.)
 */
export declare function hostHooksInstalled(root: string): Promise<boolean>;
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