import * as Schema from "effect/Schema";
import type { SuggestedAction } from "./suggested-action.js";
export type OutputFormat = "text" | "json";
export declare const ProgressEventSchema: Schema.Struct<{
    readonly type: Schema.Literal<"progress">;
    readonly phase: Schema.String;
    readonly percent: Schema.Number;
    readonly message: Schema.String;
    /** Unit identity, terminal state, waiting reason, and a monotonic timestamp for lifecycle progress. */
    readonly unit: Schema.optional<Schema.String>;
    readonly state: Schema.optional<Schema.String>;
    readonly reason: Schema.optional<Schema.String>;
    readonly atMs: Schema.optional<Schema.Number>;
}>;
export type ProgressEvent = typeof ProgressEventSchema.Type;
export declare const LogEventSchema: Schema.Struct<{
    readonly type: Schema.Literal<"log">;
    readonly level: Schema.Literals<readonly ["info", "warn", "error"]>;
    readonly message: Schema.String;
}>;
export type LogEvent = typeof LogEventSchema.Type;
export declare const ErrorEventSchema: Schema.Struct<{
    readonly type: Schema.Literal<"error">;
    readonly code: Schema.String;
    readonly message: Schema.String;
}>;
export type ErrorEvent = typeof ErrorEventSchema.Type;
/**
 * Construct an NDJSON `error` event — the single source of truth for the
 * machine-mode error event shape. The full structured detail (title, metadata,
 * suggestions) lives in the stdout envelope; the stream event carries only the
 * stable `code` and a human `message`.
 */
export declare const makeErrorEvent: (code: string, message: string) => ErrorEvent;
export declare const SuggestionEventSchema: Schema.Struct<{
    readonly type: Schema.Literal<"suggestion">;
    readonly description: Schema.String;
    readonly cmd: Schema.optional<Schema.String>;
    readonly url: Schema.optional<Schema.String>;
}>;
export type SuggestionEvent = typeof SuggestionEventSchema.Type;
/**
 * Construct an NDJSON `suggestion` event — the single source of truth for the
 * machine-mode suggestion event shape, shared by the renderer and error paths.
 */
export declare const makeSuggestionEvent: (suggestion: SuggestedAction) => SuggestionEvent;
export type StreamEvent = ProgressEvent | LogEvent | ErrorEvent | SuggestionEvent;
export declare const emitEvent: (event: StreamEvent) => import("effect/Effect").Effect<void, never, never>;
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