/**
 * Spawn-time model reference normalization for AgentManager. Extracted from
 * manager.ts to keep that file under its line-cap ceiling.
 *
 * When `modelCandidates` (the live registry's model list) is supplied, a
 * bare id resolves via the shared resolver (model-id-resolution.ts): unique
 * across the registry -> auto-qualify; ambiguous/unknown -> a rich error
 * naming real candidates. Storage stays provider-qualified either way.
 * Omitted `modelCandidates` falls back to the prior format-only validation
 * so a caller that hasn't threaded the registry through yet is unaffected.
 */
import { type ModelIdCandidate } from '../../providers/model-id-resolution.js';
export declare function requireProviderQualifiedModel(modelId: string | undefined, label: string, modelCandidates?: readonly ModelIdCandidate[], contextProviderId?: string | undefined): string | undefined;
export declare function normalizeProviderQualifiedModelList(models: readonly string[] | undefined, label: string, modelCandidates?: readonly ModelIdCandidate[]): string[] | undefined;
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