/**
 * Embedding policy — "no more stubs" enforcement.
 *
 * Every embedder in the codebase tries REAL models first (Lattice WASM →
 * ruvector ONNX → AgentDB bridge → transformers.js) and only falls back to a
 * deterministic HASH embedding when none loads. A hash embedding has no semantic
 * meaning — it silently degrades similarity search into noise.
 *
 * This module makes that failure mode a POLICY choice instead of a silent
 * default. With RUFLO_REQUIRE_REAL_EMBEDDINGS truthy, any hash last-resort throws
 * loudly ("no stubs") rather than returning a meaningless vector — fail-closed,
 * so a broken embedding substrate is a hard error, not corrupt retrieval.
 *
 * Default (unset): unchanged behavior (warn + degrade), so nothing breaks for
 * installs where a real embedder genuinely can't load. Set the flag in any
 * environment that must never serve pseudo-embeddings.
 */
export declare function requireRealEmbeddings(): boolean;
/** Throw the canonical "no stubs" error if strict mode is on; else no-op. */
export declare function enforceNoStub(where: string): void;
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