Modernizing complex legacy code with AI agents
Agent migration case study · Mistral AI · Intermediate to advanced
You want Mistral's September 9, 2026 field report on migrating 40,000 lines of Fortran 77 to C++, including a parity harness built before migration, agent-generated documentation, planner-coder-tester-reviewer workflows, and the human checkpoints needed for maintainable results.
mistral, coding agents, legacy modernization, parity testing, agent workflows