@reviewpipe/provider-lexicon

Zero-dependency lexicon sentiment provider for reviewpipe — the Tier -1 baseline. Scores sentiment offline with a bundled AFINN-style word list; no API key, no network, no ML dependency.

npm install @reviewpipe/provider-lexicon

import { Pipeline } from '@reviewpipe/core';
import { LexiconProvider } from '@reviewpipe/provider-lexicon';

const result = await new Pipeline()
  .source(adapter)
  .provider(new LexiconProvider())
  .run(input);

capabilities: { sentiment: true, embeddings: false, summarization: false, customPrompts: false }.

Scoring sums AFINN valences with a simple negation window and squashes to [-1, 1]; empty or no-match text returns a no-signal neutral (score 0, confidence 0) rather than throwing. Also exports scoreSentiment(text) and a hand-written TF-IDF extractKeywords(documents) utility.

License

Apache-2.0