import type { Model } from "@openclaw/llm-core";
/** Strict-tool policy inputs for OpenAI-compatible routes. */
export interface OpenAIStrictToolSettingOptions {
    transport?: "stream" | "websocket";
    supportsStrictMode?: boolean;
}
/** Narrow host ports consumed by the built-in provider adapters. */
export interface AiTransportHost {
    /**
     * Builds a policy-guarded fetch for one model request.
     * Returning undefined keeps the provider SDK's default fetch.
     */
    buildModelFetch(model: Model, timeoutMs?: number, options?: {
        sanitizeSse?: boolean;
    }): typeof fetch | undefined;
    /** Resolves host-owned process-local secret sentinel substrings immediately before egress. */
    resolveSecretSentinel(value: string): string;
    /** Redacts secrets inside structured tool-result payloads. */
    redactSecrets<T>(value: T): T;
    /** Redacts secret-bearing text in tool payload strings. */
    redactToolPayloadText(text: string): string;
    /**
     * Resolves the host strict-tool default for OpenAI-compatible routes.
     * undefined lets the request omit the strict flag entirely.
     */
    resolveOpenAIStrictToolSetting(model: Pick<Model, "provider" | "api" | "baseUrl" | "id"> & {
        compat?: unknown;
    }, options?: OpenAIStrictToolSettingOptions): boolean | undefined;
    /**
     * Emits one transport diagnostic; build runs only when the host logs it and
     * may return null to suppress the entry (e.g. de-duplication).
     */
    logDebug(subsystem: string, build: () => {
        message: string;
        data?: Record<string, unknown>;
    } | null): void;
}
/** Installs host implementations for the transport policy ports. */
export declare function configureAiTransportHost(host: Partial<AiTransportHost>): void;
/** Returns the active transport host (inert defaults unless configured). */
export declare function getAiTransportHost(): AiTransportHost;
/** Resolves sentinel substrings in custom headers at a no-fetch adapter boundary. */
export declare function resolveAiTransportHeaderSentinels(headers: Record<string, string> | undefined): Record<string, string> | undefined;