index.ts

/**
 * @nationaldesignstudio/rampart
 *
 * Client-side PII filter for LLM chat. Strips names, SSNs, card numbers, and
 * every other PII class out of text before it leaves the device — keeping only
 * {city, state, zip} — so raw PII never reaches our servers or logs.
 *
 * Layers: offset-preserving heuristics + validators (structured PII, any
 * separator form), an optional small wasm token-classifier (contextual PII),
 * a default-deny keep-set policy, and a reversible placeholder/rehydrate
 * session table for coherent multi-turn chat.
 */

export {
  ChatGuard,
  createGuard,
  DEFAULT_ALIASES,
  DEFAULT_MAX_INPUT_CHARS,
  DEFAULT_WORKER_TIMEOUT_MS,
  type GuardOptions,
  type NerDetector,
} from "./src/guard";
export {
  StreamingReveal,
  createRevealTransform,
  type PlaceholderResolver,
} from "./src/streaming";
export {
  SessionEntityTable,
  PLACEHOLDER_PATTERN,
  neutralizePlaceholders,
  type ScrubResult,
  type PlaceholderAliases,
} from "./src/session";
export { detectHeuristics } from "./src/heuristics";
export { mergeSpans, applyPolicy } from "./src/policy";
export { premask, projectMaskedSpan, sentinelFor, type PremaskResult } from "./src/premask";
export { KEEP_LABELS, resolveKeepLabels, shouldRedact, type PiiLabel, type Span } from "./src/types";
export {
  detectNer,
  loadNerClassifier,
  CURTAIN_MODEL_NAME,
  NER_TOKEN_BUDGET,
  NER_TOKEN_OVERLAP,
  type NerOptions,
  type TokenClassifier,
  type TokenCounter,
} from "./src/ner/classifier";
export { registerNerWorker, createWorkerClassifier } from "./src/ner/worker";
export { isLuhnValid, isValidSsn } from "./src/validators";