/**
 * get_handoff_briefing — session succession as a computed receipt (change: add-session-handoff-briefing).
 *
 * When a session ends mid-change (context exhausted, cleared, compacted, or moved), the successor
 * should not have to trust a prose summary. This composes the in-flight state from existing
 * lookups into one deterministic briefing: the same repository state gives the same bytes.
 *
 *   1. touched symbols: the working-tree diff's changed symbols (with callers, via `blast_radius`)
 *      and, when a session ledger is live, the symbols this session edited and already committed;
 *   2. anchored memories and decisions in scope: fresh ones listed, drifted ones flagged, orphaned
 *      ones withheld and counted (the recall discipline);
 *   3. drifted specs, and the open `openspec/changes/*` whose proposal or tasks name a touched file,
 *      with their unchecked task lines quoted;
 *   4. the tests that reach the touched set;
 *   5. unfinished receipts: uncommitted files (staged, unstaged, untracked), the index lease, and
 *      the session ledger's open facts.
 *
 * Every element carries `expand`: the tool call that returns its full detail, so the successor pays
 * only for what it needs. A token budget trims the least central sections first, each with an
 * omission receipt. Nothing is persisted, and no conversation transcript is read.
 *
 * NoRedundantConclusions: `blast_radius` reviews a pending diff, `briefing_since` catches up on
 * others' landed changes, and `orient` starts a session; this one hands an in-flight change over.
 */
export interface HandoffInput {
    directory: string;
    /** Approximate token budget for the whole briefing (default 1,500; 300–8,000). */
    tokenBudget?: number;
}
export declare function handleGetHandoffBriefing(input: HandoffInput): Promise<Record<string, unknown>>;
/** A plain-text rendering for a hook or a terminal. */
export declare function renderHandoff(b: Record<string, unknown>): string;
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