import type { ModelProfileDefinition } from "../config/model-profiles";
export { SYNTHETIC_PROVIDER_ID } from "./model-profile-namespace";
/**
 * Display metadata used for synthetic rows whose profile default model cannot
 * be resolved to a registered model. Mirrors the shared unknown-model
 * constants from `@gajae-code/ai`; the real model's window is authoritative.
 */
export declare const SYNTHETIC_UNKNOWN_CONTEXT_WINDOW = 222222;
export declare const SYNTHETIC_UNKNOWN_MAX_TOKENS = 8888;
export declare function isSyntheticModelId(modelId: string): boolean;
export declare function buildSyntheticModelId(profileName: string): string;
/**
 * Parse a synthetic model id losslessly. Only the first namespace slash is
 * consumed; the full suffix (which may itself contain slashes or punctuation,
 * matching the configured-profile contract) is the profile id.
 */
export declare function parseSyntheticModelId(modelId: string): {
    profileName: string;
} | undefined;
/** A bounded SDK `invalid_input`-coded error for the synthetic selection branch. */
export declare function syntheticModelInputError(message: string): Error;
export interface ResolvedSyntheticModelSelection {
    /** The raw profile suffix after the first namespace slash. */
    profileName: string;
    /** The canonical profile id (legacy aliases resolved, errors fail closed). */
    canonicalName: string;
}
/**
 * Canonicalize a synthetic model id against the merged profile registry.
 * Profile/registry failures are converted to the SDK's `invalid_input` code so
 * the ACP adapter's existing `invalid_input -> invalidParams` mapping applies.
 */
export declare function resolveSyntheticModelSelection(modelId: string, profiles: ReadonlyMap<string, ModelProfileDefinition>, registryError?: unknown): ResolvedSyntheticModelSelection;
/**
 * True when a real registry entry shadows the reserved logical namespace.
 * Callers must omit synthetic rows (and reject synthetic selection) in that
 * case instead of silently shadowing or misrouting the user's provider.
 */
export declare function syntheticNamespaceCollision(models: readonly {
    provider: string;
}[], configuredProviderIds?: readonly string[]): boolean;
/**
 * Resolve the set of providers with usable credentials across every profile's
 * strict requirements and alternative groups. This is the single availability
 * derivation shared by the Q10 synthetic facade and the Q27 profile catalog so
 * both surfaces agree; `kNoAuth` counts as available and per-provider lookup
 * failures simply exclude that provider.
 */
export declare function collectAuthenticatedProfileProviders(profiles: ReadonlyMap<string, ModelProfileDefinition>, getApiKeyForProvider: (provider: string) => Promise<string | undefined>): Promise<ReadonlySet<string>>;