dsh-pubmed: An Advanced PubMed Search Toolkit

dsh-pubmed is the first plugin in the DeepSeek Harness (DSH) ecosystem specifically designed for the biomedical database PubMed. It requires no API key and connects directly to NCBI's interfaces, providing seven core tools: literature search, bulk metadata retrieval, author publication analysis, name disambiguation, institutional statistics, advisor-student matching, and retraction verification. The plugin can be invoked through natural-language instructions, supports Chinese search queries, and includes built-in rate limiting to comply with NCBI usage policies, making it suitable for developers conducting academic investigations and data analysis.