I will build one local Python command-line workflow that combines up to three agreed CSV or plain-text processing steps, such as exact-key list comparison, duplicate removal and generating an audit report. Deliverables: Python source code, a README with setup and run instructions, synthetic example inputs and outputs, and tests for the agreed acceptance criteria. Includes one revision within the agreed workflow. I use AI-assisted development and review and test the code. Before accepting, we will agree on input format, rules, output and a representative sample. Excludes browser bots, account logins, paid APIs, production deployment, GUI apps, advanced Excel macros and ongoing hosting or support.