/**
 * Output Schema Registry — shared mapping from `outputSchemaRef` string to the
 * TypeBox schema that validates a runtime adapter's parsed output.
 *
 * Single source of truth for both PiAiRuntimeAdapter and OpenClawCliRuntimeAdapter
 * (and any future PDRuntimeAdapter). Extracted from pi-ai-runtime-adapter.ts so
 * the OpenClaw adapter can validate Stage A/B outputs against the correct schema
 * instead of hardcoding DiagnosticianOutputV1Schema.
 *
 * Why this matters: the split diagnostician pipeline runs three stages, each
 * producing a DIFFERENT output shape:
 *   - Stage A (diag_rootcause) → DiagRootCauseOutputV1 (causalChain, rootCauseCategory)
 *   - Stage B (diag_distiller) → DiagDistillerOutputV1 (abstractedPrinciple, rationale)
 *   - Stage C (diag_router)    → DiagnosticianOutputV1  (violatedPrinciples, recommendations)
 * Stage runners pass `outputSchemaRef` on StartRunInput to name which shape they
 * expect; adapters MUST resolve the schema from this registry rather than assume
 * DiagnosticianOutputV1 (which only matches Stage C).
 */
import type { TSchema } from '@sinclair/typebox';
/**
 * Map of `outputSchemaRef` string → TypeBox schema. Keys match the
 * `outputSchemaRef` values passed by each runner's `invokeRuntime()`.
 */
export declare const OUTPUT_SCHEMA_REGISTRY: ReadonlyMap<string, TSchema>;
/**
 * Resolve the TypeBox schema for a given `outputSchemaRef`.
 *
 * @param ref - the outputSchemaRef string passed by a runner (e.g. 'diag-rootcause-output-v1').
 * @returns the matching schema, or `undefined` when:
 *   - `ref` is undefined/null/empty (caller should apply its own default), OR
 *   - `ref` is a non-empty string not present in the registry (caller should fail loud).
 * Callers MUST distinguish these two cases: an absent ref is "use default", an
 * unknown ref is a bug (fail loud per rc-3-fail-loud-missing).
 */
export declare function resolveOutputSchema(ref: string | undefined | null): TSchema | undefined;
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