@stll/anonymize-chat

Shared contracts for reversible, placeholder-safe anonymization of text before it crosses a third-party boundary.

The package configures @stll/anonymize-wasm, preserves literal placeholder tokens, supports caller-supplied exact sensitive values, and returns one placeholder-to-original map for controlled restoration.

import {
  findChatAnonPlaceholders,
  runChatAnonPipeline,
} from "@stll/anonymize-chat";

const result = await runChatAnonPipeline({
  runtime,
  dictionaries,
  text,
  workspaceId,
  forcedSensitiveValues: [internalReference],
});

const allowedResponsePlaceholders = new Set([
  ...result.redactionMap.keys(),
  ...findChatAnonPlaceholders(text),
]);

Runtime bindings and dictionaries are dependency-injected so browser workers, servers, and tests can own their loading strategy.

Before restoring provider responses, hosts can scan them with findChatAnonPlaceholders and reject tokens absent from the allowed set. Source placeholders belong in that set because the pipeline preserves literal tokens.

Install

bun add @stll/anonymize-chat @stll/anonymize-wasm

License

Apache-2.0