import { z } from "zod";
export declare const TERMINAL_ACTIVITY_STATES: readonly ["idle", "working", "attention"];
export declare const TERMINAL_ACTIVITY_ATTENTION_REASONS: readonly ["finished", "needs_input"];
export type TerminalActivityState = (typeof TERMINAL_ACTIVITY_STATES)[number];
export type TerminalActivityAttentionReason = (typeof TERMINAL_ACTIVITY_ATTENTION_REASONS)[number];
export declare const TerminalActivitySchema: z.ZodObject<{
    state: z.ZodCatch<z.ZodEnum<{
        idle: "idle";
        working: "working";
        attention: "attention";
    }>>;
    attentionReason: z.ZodCatch<z.ZodOptional<z.ZodNullable<z.ZodEnum<{
        finished: "finished";
        needs_input: "needs_input";
    }>>>>;
    changedAt: z.ZodNumber;
}, z.core.$strip>;
export type TerminalActivity = z.infer<typeof TerminalActivitySchema>;
export type TerminalActivityStatusBucket = "running" | "needs_input" | "attention";
export declare function deriveTerminalActivityStatusBucket(activity: TerminalActivity | null | undefined): TerminalActivityStatusBucket | null;
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