Personal blog, write-ups, and notes by Abdur Rafay.https://blog.abdurrafay.tech/en-ushttps://blog.abdurrafay.tech/blog/patchwork-v1-1-scaffolding-and-scaling/https://blog.abdurrafay.tech/blog/patchwork-v1-1-scaffolding-and-scaling/What happened when I fixed reflection blind spots, resolved sandbox import bugs, and scaled Patchwork from 3B (60%) to 7B (76%): which bugs were agent flaws, which were model limits, and how confirmation bias shrank.Sat, 07 Nov 2026 00:00:00 GMThttps://blog.abdurrafay.tech/blog/patchwork-automated-program-repair/https://blog.abdurrafay.tech/blog/patchwork-automated-program-repair/How an execution-guided LangGraph reflection loop boosted a 4-bit Qwen2.5-Coder-3B model from 38% Pass@1 to 58% Pass@overall, and the confirmation-bias blind spot it uncovered.Thu, 10 Sep 2026 00:00:00 GMThttps://blog.abdurrafay.tech/blog/insafdost-legal-rag-pipeline/https://blog.abdurrafay.tech/blog/insafdost-legal-rag-pipeline/Engineering an asynchronous LangGraph pipeline with Groq 20B/120B dynamic routing, Qdrant vector retrieval, and thread-offloaded cross-encoder reranking.Fri, 28 Aug 2026 00:00:00 GMThttps://blog.abdurrafay.tech/blog/til-python-rstrip-trap/https://blog.abdurrafay.tech/blog/til-python-rstrip-trap/Why Python's str.rstrip('.com') does not remove a suffix, how it silently mangles strings, and why 3B-parameter models hit 0% accuracy on string stripping.Fri, 14 Aug 2026 00:00:00 GMT