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1. dormant-audio-search dormant-audio-search Public

   Natural-language search over public-domain historical radio broadcasts (1930s-50s) — hand-built two-stage retrieval, provenance-labeled AI tags, per-decade eval harness

   Python

2. contact-lens contact-lens Public

   Local-first contact and relationship search with a tiered, cost-aware retrieval engine (cheap lexical tier plus semantic rerank), measured against a labeled eval set (precision@k, nDCG@5).

   Dart

3. langgraph-mcp-agent langgraph-mcp-agent Public

   A LangGraph ReAct agent whose tools are served over the Model Context Protocol (MCP). The full tool-calling loop is tested hermetically with a fake model in GitHub Actions CI.

   Python

4. personal-rag personal-rag Public

   Retrieval-augmented knowledge base over semiconductor and AI-infrastructure research notes. ChromaDB + multilingual embeddings, a CLI Q&A interface, and an auto-generated agent skill.md.

   Python

5. lora-finetune-demo lora-finetune-demo Public

   Parameter-efficient fine-tuning (LoRA and 4-bit QLoRA) with PEFT + Transformers. Trains about 0.18% of parameters; hermetic tests build a tiny model in CI, no GPU or network.

   Python