/**
 * design/130 P2b — soft per-call wall-clock deadline (deadline execution hardening).
 *
 * The runner passes an absolute soft deadline into each provider call (`StreamOptions.callDeadlineMs`);
 * a brain that observes the wall clock crossing it CUTS the stream deliberately (like the degenerate-
 * repetition cutoff) instead of letting the generation ride into the runner's hard abort — the salvaged
 * prefix is real work, and the loop gets a bounded write-out turn before the hard deadline.
 *
 * The sentinel below is the cross-layer contract (brain → loop recovery → assembler), mirroring
 * `DEGENERATE_MESSAGE` in ./repetition.js: match on THIS constant, never on prose fragments.
 */
/** Stamped as `errorMessage` on a turn the brain cut at the soft wall-clock deadline. */
export declare const WALLTIME_CUTOFF_MESSAGE = "walltime cutoff: the response crossed the task's soft wall-clock deadline and was cut off to preserve a write-out window";
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