DeepSeek Harness Plugin: Kestrel Deep Research Engine

Kestrel is a deep research engine designed for DeepSeek Harness, aiming to address credibility issues in traditional tools such as fabricated citations and non-independent sources. It enforces mechanical validation at the code level, requiring citations to include an exact original quote—quotes shorter than 24 characters are rejected—and uses hash matching to verify citation authenticity. Kestrel does not treat the number of sources as a measure of truth; instead, it uses algorithms such as MinHash to compute the number of independent origins, enabling it to identify reposts from the same source and assess source credibility. The plugin can be used directly in DSH or invoked as a standalone library for its validation and graph analysis features, making it suitable for developers who require high-confidence research.