What problem does it solve? Building Windmill flows by hand leads to structural errors like misplaced preprocessor modules, missing input transforms, and invalid result references. This Skill guides the AI agent to scaffold flows correctly with the wmill CLI and author valid flow.yaml definitions that conform to the OpenFlow schema. ## Core Features & Use Cases - CLI-Based Scaffolding: Runs wmill flow new with the correct path and summary flags so the folder suffix and flow.yaml shell match workspace settings. - OpenFlow Schema Guidance: Enforces structural rules for modules, loops, branches, approval steps, preprocessor and failure handlers, and input transforms. - Preview and Deploy Workflow: Distinguishes wmill flow preview for local iteration from wmill flow run and wmill sync push for deployed execution. - Use Case: A developer asks to build a flow that fetches data, loops until a condition is met, and requests approval. The Skill scaffolds the flow, writes a valid whileloopflow with module-level stop_after_if, adds a suspend step, and previews it locally. ## Quick Start Ask the agent to create a new Windmill flow at a given path with a short summary, then let it scaffold, fill in flow.yaml, and preview the result.