feersum

Enforce ASCII-only section headers and comment banners. Use when writing or reviewing code comments, section dividers, or banner headers in any source file. Do not use Unicode box-drawing characters.

Ensure F# source code is formatted cleanly with Fantomas before finishing a task. Use when writing or editing any F# source file, before committing changes, or when CI lint failures need to be fixed. Run Fantomas to reformat, then verify tests still pass.

Write a new compiler design document in docs/design-docs/. Use when the user asks to document a design, write a design doc, or record architectural decisions for the Feersum compiler.