/**
 * The lease machine — engagement advances one pass at a time, by evidence.
 *
 * Pattern: pure reducer. `advanceEngagement(plan, prior, pass)` returns the
 *          next state, the injection ids to suppress this pass, and the
 *          standing changes for the record. No I/O, no clock, no model.
 * Role:    the kernel's law. A TENTATIVE engagement (a regex or classifier
 *          guess) is renewed only by concrete evidence — the map's own tool
 *          called, the cursor routed by the system, the model asking by
 *          name. Without corroboration for `renewalGrace` consecutive
 *          passes it is PARKED: its cursor stays exactly where the map put
 *          it, and its prompt and tools simply stop riding the next calls.
 *          An engagement backed by explicit or structural evidence stands.
 *
 * Recovery is evidence too: any explicit or structural evidence while parked
 * re-engages the map on the spot — the model's accepted `read_skill` pick is
 * the recovery door, so parking is never a trap. That door is real as of
 * 9.59.0: the reachability gate used to refuse a pick of the node the cursor
 * already occupies, which for a single-member map (or any map parked where
 * the model wants to return) made parking permanent for the rest of the turn.
 * A pick is now routed by INTENT — of a PARKED map's member it is a
 * RE-ENGAGEMENT, which changes engagement and not position.
 *
 * Measured grounding: in the recorded 30-call stuck turn (an entry regex
 * matched a noun), the map's four tools were never called and 29 of 30 moves
 * were "stay". Under grace 3 this reducer parks it on call four, saving the
 * remaining ~26 calls from re-serving ~7k characters of the wrong map.
 */
import { type EngagementPass } from './evidence.js';
import type { EngagementChange, EngagementPlan, MapEngagement } from './types.js';
/** What one pass of the reducer hands back. */
export interface EngagementAdvance {
    /** Next engagement state — write it back to scope under the alias key. */
    readonly next: MapEngagement;
    /** Injection ids whose contributions are suppressed THIS pass (parked maps' members). */
    readonly parkedInjectionIds: readonly string[];
    /**
     * Tool NAMES held off the wire this pass — every tool contributed by a
     * parked map's members (9.59.0).
     *
     * The engagement axis suppresses tools on its OWN authority, independently
     * of `scopeTools`. The two are orthogonal and always were: `scopeTools`
     * answers "do this map's tools follow the CURSOR?", parking answers "is this
     * map talking at all?". Before this field, parking answered only the first
     * half of its own promise — with `scopeTools` false (the default for flat
     * graphs) a parked map's prompt stopped and all four of its
     * tool schemas kept riding, so the wire actively contradicted the park.
     */
    readonly parkedToolNames: readonly string[];
    /** Standing changes this pass, for the typed events. Empty on a quiet pass. */
    readonly changes: readonly EngagementChange[];
}
/**
 * Advance every mounted map's engagement by one pass.
 *
 * Laws, in order:
 * 1. A map first earns a record when its cursor lands on a member or a member
 *    activates; the founding strength is the winning clause's strength.
 * 2. Renewal evidence resets `idle` and may UPGRADE the standing's strength
 *    (never downgrade — a guess later confirmed by the system stops decaying).
 *    An upgrade is a CHANGE: it emits, and `foundedBy`/`foundedAt` keep the
 *    cause the engagement actually started on.
 * 3. A tentative engagement with no evidence counts one idle pass when ALL
 *    THREE clauses hold: its contribution was served last pass, none of its
 *    tools was called, and the model called something else instead. At
 *    `renewalGrace` it parks. A pass with no tool calls at all counts nothing
 *    (the model was thinking, not ignoring), and neither does a pass where
 *    the map's contribution never reached the wire (it cannot be ignored if
 *    it was not there).
 * 4. `nonParkable` maps never park, whatever the count.
 * 5. Explicit or structural evidence re-engages a parked map immediately.
 */
export declare function advanceEngagement(plan: EngagementPlan, prior: MapEngagement | undefined, pass: EngagementPass): EngagementAdvance;