import type { PostToolOutputResponse } from "./types.js";
/**
 * Why a governed call ran WITHOUT a decision from ACP (acp-governance-sdks#6).
 *
 *   not-configured — no context bound; wrap the handler in withContext()
 *   unreachable    — the gateway could not be reached (network / timeout)
 *   gateway-error  — the gateway answered without a decision (5xx, 401…)
 *
 * Fail-open is deliberate: governance must never be the single point of
 * failure for an agent. Fail-open *silently* is the failure mode this SDK
 * exists to eliminate — so every lapse is announced once per cause per
 * process (console.warn), names its cause in the returned reason, and
 * leaves a line in the lapse log for every call it let through.
 */
export type UngovernedCause = "not-configured" | "unreachable" | "gateway-error";
/** Test seam: forget which causes have been announced. */
export declare function _resetUngovernedWarningsForTests(): void;
/**
 * Ask ACP whether a tool call should proceed. POSTs to /govern/tool-use.
 *
 * Fails open: when no decision could be obtained the result is `allow` with
 * reason `"fail-open (<cause>): <detail>"` — announced once per cause on
 * console.warn, and recorded in the lapse log for every such call.
 */
export declare function preToolUse(toolName: string, toolInput?: unknown): Promise<{
    allowed: boolean;
    reason: string;
    decision: "allow" | "deny" | "ask";
}>;
/**
 * Report the result of a tool call to ACP. POSTs to /govern/tool-output.
 *
 * Fire-and-forget by default. If the response indicates redaction or block,
 * it is returned so the caller can optionally swap `tool_output` for the
 * server-redacted version or drop the result. Returns null when no answer
 * could be obtained — the pre-call already announced the lapse.
 */
export declare function postToolOutput(toolName: string, toolInput: unknown, toolOutput: unknown): Promise<PostToolOutputResponse | null>;
//# sourceMappingURL=hook.d.ts.map