import Database from "better-sqlite3";
export declare function getGlobalDb(): InstanceType<typeof Database> | null;
export interface GlobalDecisionInput {
    projectRoot: string;
    decision: string;
    rationale?: string | null;
    tags?: string[] | null;
    timestamp: string;
}
export declare function writeGlobalDecision(input: GlobalDecisionInput): number | null;
export declare function writeGlobalConvention(projectRoot: string, category: string, rule: string, timestamp: string): number | null;
export interface GlobalDecisionRow {
    id: number;
    project_root: string;
    decision: string;
    rationale: string | null;
    tags: string | null;
    timestamp: string;
}
export interface GlobalConventionRow {
    id: number;
    project_root: string;
    category: string;
    rule: string;
    timestamp: string;
}
export declare function queryGlobalDecisions(query?: string, limit?: number): GlobalDecisionRow[];
export declare function queryGlobalConventions(limit?: number): GlobalConventionRow[];
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