/**
 * `o11y/` domain — observability primitives for the backend platform.
 *
 * Currently scoped to W3C trace-context management. The three tools let the
 * agent pin a trace id on the session so subsequent <request_*> calls share
 * one correlation root without per-call plumbing:
 *
 *   - <o11y_new-trace-id> — generate + pin
 *   - <o11y_set-trace-context> — set / clear specific values
 *   - <o11y_get-trace-context> — inspect the current pin
 *
 * The session pin is shadowed by `_metadata.traceId` (MCP client) and by
 * per-call `traceId` arguments — see <src/platform/backend/tools/request/trace.ts>
 * for the precedence rule.
 */
import { Tool } from '../../../../tools';
import { BackendToolSessionContext } from '../context';
export declare const tools: Tool<BackendToolSessionContext>[];