export type WorkerKillDecision = {
    kill: false;
    elapsedMs: number;
    idleMs: number;
} | {
    kill: true;
    kind: "timeout" | "log_stall";
    reason: string;
    elapsedMs: number;
    idleMs: number;
};
export type McpHandshakeFailure = {
    kind: "mcp_handshake";
    server: string | null;
    line: string | null;
};
export declare function detectMcpHandshakeFailure(logText: unknown): McpHandshakeFailure | null;
export declare function shouldKillWorker(input: {
    nowEpochMs: number;
    startedAtEpochMs: number;
    logUpdatedAtEpochMs: number;
}, limits: {
    timeoutMs: number;
    stallMs: number;
}): WorkerKillDecision;