/**
 * EVO-1 inbox-wake — pure decision core (durable bug #3). Given the ids already
 * woken on and the current inbox, decide whether there is something new and
 * format an **h2a-tagged, human-visible wake line** to inject into an idle host.
 *
 * Pure + dep-free (no store, no clock — `nowIso` is injected). The process /
 * driver wiring (mcp-serve --wake hook, watch-inbox loop) lives in @sentropic/h2a
 * and reuses nativeBackchannelDriver + formatSignedDriveInstruction.
 */
import type { H2AEnvelope } from "./types.js";
export declare const H2A_WAKE_REASON_INBOX: "inbox";
export interface InboxWakeInput {
    /** Envelope ids already woken on (persisted across ticks). */
    readonly seen: readonly string[];
    readonly inbox: readonly H2AEnvelope[];
    /** Reference time (ISO) stamped in the wake tag — injected for determinism. */
    readonly nowIso: string;
}
export interface InboxWakeDecision {
    /** New (unseen) envelopes that triggered the wake. */
    readonly fresh: H2AEnvelope[];
    /** The wake line to inject (tag + neutral sentence). */
    readonly wake: string;
    /** Updated seen set (prior + fresh ids) for the next tick. */
    readonly seen: string[];
}
/**
 * Format the wake line. The bracketed tag is machine-parseable + always visible
 * (no silent injection); the sentence is the neutral human reason.
 */
export declare function formatWakeLine(fresh: readonly H2AEnvelope[], nowIso: string): string;
/** Decide a wake from new inbox envelopes; null when nothing is unseen. */
export declare function decideInboxWake(input: InboxWakeInput): InboxWakeDecision | null;
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