/**
 * Teaching error helpers.
 * Every error tells: what went wrong, why it matters, and what to do.
 * First-mover DX differentiator — no memory competitor does this.
 */
export declare function teachingError(what: string, why: string, fixes: string[], docUrl?: string): string;
/**
 * Pattern-match common Postgres/Supabase/embedding errors and add teaching context.
 * Used by errorResult() in tools.ts to enrich every tool error automatically.
 */
export declare function enrichError(toolName: string, err: unknown): string;
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