Add Leiden community detection and LightRAG dual-level retrieval#2

Merged

ronaldmannak merged 12 commits into

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claude/graphrag-rs-port-j0im9e

Jul 4, 2026

Commits on Jul 4, 2026

Add Leiden community detection and LightRAG dual-level retrieval
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Address Gemini review: reuse embeddings, determinism, concurrency, robustness
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Address Codex review: cache stores, real source grounding, collision-proof merge
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Address Codex review: gate LightRAG on a successful build, cap fallback keywords
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Address Codex review: clamp keyword limit, keep short terms, honor 0 iterations
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Address Codex review: offline high-level search, mention grounding, build race
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Address Codex review: offline fallback tokenization/caps, topK guards, grounding
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Address Codex review: short-circuit topK<=0 in engine, guard embedding dimension
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Fix CI: add missing isAvailable() to FailingEmbedder test double
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Address Codex review: reject keyword-only LightRAG, short-circuit maxKeywords=0
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Fix CI: reference self.config.approach in lightRAG()
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Document LightRAG's independence from GraphRAG hybrid-path Config (Codex review)
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