export declare function traceHeaders(): Record<string, string>;
/**
 * Redact a string for anything that leaves this process (diagnostic lines,
 * execution traces).
 *
 * Kept in lockstep with ab-agent's `lib/telemetry.cleanText` — the two feed the
 * same `media_chat_turn_trace` table, and a table whose rows were sanitized by
 * two different rulesets is a table nobody can reason about. ANSI stripping,
 * e-mail and phone redaction were added here to close that gap.
 *
 * `max` caps the result in BYTES, keeping the head. Callers that need the tail
 * (a command's decisive line is its last one) slice before calling.
 */
export declare function cleanDiagnosticText(value: string, max?: number): string;
/**
 * Exit code → the outcome vocabulary of the logging contract.
 *
 * Exported because the execution trace (project/trace.ts) reports the same
 * verdict for the same run: two mappings would let a run be `failure` in the
 * diagnostic line and `success` in the database.
 */
export declare function outcomeOf(exitCode: number): 'success' | 'cancelled' | 'rejected' | 'failure';
/** Opt-in line framing for hosts; stdout is exclusively the existing skill protocol. */
export declare function diagnostic(exitCode: number, durationMs: number, error?: unknown): void;