import type { LogEntry } from "@skaile/workspaces/types";
import { type OutputStream } from "../stream-health.js";
import type { LogSink } from "./types.js";
export type StdoutFormat = "pretty" | "json";
/** Which standard stream the sink writes to. */
export type StdoutStream = "stdout" | "stderr";
export type { OutputStream };
export interface StdoutSinkOptions {
    format?: StdoutFormat;
    /**
     * Standard stream to write to. Default: `"stdout"`. Set to `"stderr"` for
     * processes whose stdout is a reserved channel — e.g. a stdio MCP server,
     * where stdout carries JSON-RPC and any log line would corrupt the protocol.
     * An explicit stream object may be passed instead; used by tests.
     */
    stream?: StdoutStream | OutputStream;
}
export declare class StdoutSink implements LogSink {
    private format;
    private stream;
    constructor(opts?: StdoutSinkOptions);
    write(entry: LogEntry): void;
    writeBatch(entries: LogEntry[]): void;
    close(): void;
    /** False once the far end is gone; the sink then drops entries silently. */
    private writable;
    private render;
}
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