/** Cancellation primitives shared by tool execution paths. */
/** Appended when an aborted tool could not confirm cancellation. */
export declare const ABANDONED_TOOL_SUFFIX = " The tool execution could not be confirmed cancelled and may still be running.";
/**
 * Release a caller from a signal-deaf tool after one macrotask of grace.
 *
 * The grace lets an abort-aware inner operation reject with its more specific
 * error first. If the work still has not settled, its eventual result is
 * consumed and discarded so it cannot mutate the terminal conversation or
 * surface as an unhandled rejection.
 *
 * Behavior adapted from Flue v2.0.2 `packages/runtime/src/abort.ts`
 * (Apache-2.0), pinned in THIRD_PARTY_UPSTREAM.md.
 */
export declare function abandonToolOnAbort<T>(run: () => Promise<T>, signal: AbortSignal | undefined): Promise<T>;
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