/**
 * Returns a consistent ANSI color code for the given project key.
 * Each unique key gets the next color in the cycle.
 */
export declare function getProjectColor(projectKey: string): string;
/** Reset project color assignments (for testing). */
export declare function resetProjectColors(): void;
/**
 * Prepend each line of `text` with a colored project prefix.
 * Partial last lines (no trailing newline) are also prefixed.
 */
export declare function prefixLines(text: string, prefix: string): string;
/**
 * Strip ANSI cursor-movement and erase escape sequences from `text`.
 * SGR color/formatting codes (`\x1b[...m`) are intentionally preserved.
 */
export declare function stripCursorCodes(text: string): string;
/**
 * Creates a stateful line-buffering writer that ensures each output line
 * is prefixed atomically. Chunks that don't end with a newline are held in
 * a buffer until the next chunk completes the line, preventing interleaved
 * output from concurrent projects from splitting a single line across writes.
 *
 * @param prefix  The colored project prefix string to prepend to each line.
 * @param write   The underlying write function (e.g. process.stdout.write).
 * @returns A function that accepts raw text chunks.
 */
export declare function makeLinePrefixer(prefix: string, write: (s: string) => void): (chunk: string) => void;
/** Mask secrets in log messages */
export declare function maskSecrets(message: string): string;
/**
 * Structured context fields attached to a log entry (e.g. tenantCode,
 * projectCode, agentId). String values are masked for secrets; non-string
 * values are passed through unchanged.
 */
export type LogContext = Record<string, unknown>;
/** Enable or disable JSON structured output at runtime. */
export declare function setJsonMode(enabled: boolean): void;
/** Whether JSON structured output is currently enabled. */
export declare function isJsonMode(): boolean;
export declare const logger: {
    setVerbose(enabled: boolean): void;
    info(message: string, context?: LogContext): void;
    warn(message: string, context?: LogContext): void;
    error(message: string, context?: LogContext): void;
    debug(message: string, context?: LogContext): void;
    success(message: string, context?: LogContext): void;
};
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