Match Modes

LongProbe supports three match modes for verifying retrieved chunks.

ID Match

Exact string match on chunk/document IDs.

match_mode: "id"
required_chunks:
  - "doc_a_chunk_3"
  - "doc_b_chunk_7"

Text Match

Case-insensitive substring matching.

match_mode: "text"
required_chunks:
  - "30-day money-back guarantee"

Semantic Match

Word-frequency cosine similarity.

match_mode: "semantic"
semantic_threshold: 0.80
required_chunks:
  - "Only the CFO and CEO may authorize payments"

Choosing a Match Mode

• ID: When you control chunk IDs
• Text: For exact phrases
• Semantic: When wording may vary