/**
 * Turn the dependencies a model described into the step ids a plan uses.
 *
 * The model is shown `depends_on: string[]` on every plan step, described to
 * it as "Step descriptions this depends on" — descriptions, because that is
 * the only handle it has. Step ids are minted at execute time (`step_1`,
 * `step_2`, ...), so the model cannot name one and should not be asked to.
 *
 * The translation between the two was never written. `approve_plan` passed
 * `dependsOn: []` for every step, so whatever ordering the model declared
 * was dropped at the one place it entered the system. The visible cost is
 * not scheduling — `PlanManager.getNextPendingStep` holds the dependency
 * gate and currently has no callers — it is the APPROVAL: `dependsOn` is
 * serialized into the `plan_approval` payload a human reads before saying
 * yes, so a reviewer was shown a plan whose steps all looked independent
 * however carefully the model had ordered them.
 */
/** What the model said, before ids exist. */
export interface DescribedStep {
    readonly description: string;
    readonly depends_on?: readonly string[];
}
export type ResolvedDependencies = {
    readonly ok: true;
    readonly dependsOn: readonly (readonly string[])[];
} | {
    readonly ok: false;
    readonly error: string;
};
/**
 * Resolve every step's declared dependencies to step ids, or refuse.
 *
 * Returns one id array per input step, positionally.
 *
 * **Refusing beats dropping.** Every failure here means the model expressed
 * an ordering it cannot have and the plan does not mean what it says; the
 * old behaviour — discard silently — is what put an empty dependency list in
 * front of a human approver. The error text names the offending description
 * so the model can correct it and call again, which is the same shape every
 * other recoverable tool failure in this kernel uses.
 */
export declare function resolvePlanDependencies(steps: readonly DescribedStep[], idOf: (index: number) => string): ResolvedDependencies;
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