/**
 * Runtime-v1 provider section validation (issue #1136).
 *
 * `validateRuntimeProviderSection` takes a validated `provider` section, resolves every
 * `extends` chain, and validates all profile/pool references up front — unknown references,
 * cyclic `extends`, and profiles missing provider/model fail fast at compile time (before any
 * agent runs), never via a silent fallback.
 *
 * Runtime-v1 resolution itself (defaults/personas/tags/steps → provider/model, plus the
 * same-priority tag conflict fail-fast) is compiled into the shared engine-options bundle by
 * `environment.ts` and enforced at the single per-step resolution seam
 * (`resolveStepProviderModel`); this module only performs the up-front reference validation.
 */
import type { RuntimeProviderSection, RuntimeProviderProfile } from './schema.js';
export interface FlatProfile {
    provider?: string;
    model?: string;
    options?: Record<string, unknown>;
    capabilities?: string | string[];
    capabilitiesOriginProfile?: string;
    permissionMode?: 'readonly' | 'edit' | 'full';
}
/**
 * Validate every profile/pool reference in the section up front. Throws on unknown
 * references, cyclic `extends`, and referenced profiles missing `provider`/`model`.
 */
export declare function validateRuntimeProviderSection(section: RuntimeProviderSection): void;
/** Resolve every `extends` chain into flat profiles; throw on cycles and unknown parents. */
export declare function flattenProfiles(profiles: Record<string, RuntimeProviderProfile>): Map<string, FlatProfile>;
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