import { type ModelInfo } from "./model-info.ts";
type SubagentExecutionContext = "fresh" | "fork";
interface BranchSessionEntry {
    type: string;
    id?: string;
    parentId?: string | null;
    timestamp?: string;
    message?: {
        role?: string;
        content?: unknown;
        provider?: string;
        api?: string;
        model?: string;
    };
    thinkingLevel?: string;
}
interface BranchSessionManager {
    createBranchedSession(leafId: string): string | undefined;
    getHeader?: () => BranchSessionEntry | null;
    getEntries?: () => BranchSessionEntry[];
}
interface ForkableSessionManager {
    getSessionFile(): string | undefined;
    getLeafId(): string | null;
    getSessionDir?(): string;
    openSession?: (path: string, sessionDir?: string) => BranchSessionManager;
}
interface ForkContextResolverOptions {
    openSession?: (path: string, sessionDir?: string) => BranchSessionManager;
    /** Decide per child index whether a sanitized transcript must also disable the child's
     * thinking. Defaults to true (the pre-existing conservative behavior) when omitted. */
    forceThinkingOffForIndex?: (index: number) => boolean;
}
interface ForkContextResolver {
    sessionFileForIndex(index?: number): string | undefined;
    thinkingOverrideForIndex(index?: number): "off" | undefined;
}
export declare function resolveSubagentContext(value: unknown): SubagentExecutionContext;
/** Decide whether a resolved child model uses Anthropic's provider or message API, which
 * requires the sanitized fork to disable thinking. Unknown models stay conservative. */
export declare function forkedChildRequiresThinkingOff(model: string | undefined, availableModels?: ModelInfo[], preferredProvider?: string): boolean;
export declare function createForkContextResolver(sessionManager: ForkableSessionManager, requestedContext: unknown, options?: ForkContextResolverOptions): ForkContextResolver;
export {};
//# sourceMappingURL=fork-context.d.ts.map