Legal practice demands an unbroken chain between facts, statutory doctrine, analytical reasoning, and client-ready work product. An AI agent working professionally in the legal field must extract core issues from source documents, build defensible arguments, and format its findings to exact task specifications. Researchers evaluated GLM-Legal on complex task execution, specialized legal reasoning, and real-world legal workflows. It achieved a 19.2% all-pass rate on Harvey LAB while matching frontier closed-source models on LegalBench and PLawBench despite running on a significantly leaner parameter footprint.