/**
 * SMI-4408: Indexer blocklist for non-skill repos.
 *
 * Loads data/indexer-blocklist.json and produces a BlocklistMatcher consumed
 * by the main() CLI in import-github-skills.ts. The filter runs between
 * deduplicateSkills() and saveOutput() so blocked repos never reach
 * data/imported-skills.json.
 *
 * Tactical fix for known-bad repos. The structural fix (require a
 * signal-of-intent signal per ingested repo) is tracked as Tier 2
 * follow-up under ADR-109 SPARC.
 *
 * Design invariants:
 * - Exact-match only (`owner/name`, case-sensitive) — no wildcards. Keeps
 *   scope tight and auditable. If wildcards become necessary, file a
 *   follow-up issue rather than widening this module.
 * - Malformed entries throw at load (fail-safe toward ingestion rejection
 *   would be wrong here — ingestion should NOT proceed with an unverified
 *   blocklist file).
 * - version=1 contract: future schema changes must bump and handle migration.
 */
export interface BlocklistEntry {
    /** GitHub full_name: `owner/name`. Exact match, case-sensitive. */
    repo: string;
    /** Why this entry is blocked — human-readable, required. */
    reason: string;
    /** Who added the entry — required for audit trail. */
    addedBy: string;
    /** YYYY-MM-DD string — required. */
    addedAt: string;
}
export interface BlocklistFile {
    version: 1;
    updatedAt: string;
    blocked: BlocklistEntry[];
}
export interface BlocklistMatcher {
    /**
     * True when `repo` (format: `owner/name`) appears in the blocklist. Exact
     * match, case-sensitive.
     */
    isBlocked(repo: string): boolean;
    /** Expose entries for audit-logging in the import summary. */
    entries(): readonly BlocklistEntry[];
}
/**
 * Parse a raw blocklist file object. Throws on malformed shape or missing
 * required fields. Callers must catch.
 */
export declare function parseBlocklistFile(raw: unknown): BlocklistFile;
/**
 * Empty matcher — blocks nothing. Used when the blocklist file is absent or
 * callers want to opt out without conditional plumbing.
 */
export declare const EMPTY_BLOCKLIST: BlocklistMatcher;
/**
 * Load + validate a blocklist JSON file and return a matcher.
 *
 * If `path` does not exist, returns EMPTY_BLOCKLIST (no-op). A malformed
 * file throws so the importer refuses to proceed with a corrupt blocklist.
 */
export declare function loadBlocklist(path: string): BlocklistMatcher;
/** Build a matcher from an in-memory entry list (test + inline use). */
export declare function buildBlocklist(entries: BlocklistEntry[]): BlocklistMatcher;
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