Katara purifies the water

A waterbender can pull silt, salt, and poison out of water and leave the water itself untouched. Purify does that to a diff. It draws out what an agent added that does not belong, and keeps every drop of behavior.

Scope

Check the diff against the base branch (default main, including the working tree) and remove the AI-generated slop the branch introduced. Touch only lines the branch changed.

What to draw out

• Extra comments that are unnecessary or inconsistent with the file's local style. For a full comment pass, run clear-water.
• Defensive checks or try/catch blocks that are abnormal for a trusted code path. Guards belong at system boundaries (Boundary Discipline, Earth in four-elements).
• Casts to any used only to get past a type error. Fix the type instead (see typescript-forms).
• Deeply nested code that early returns would flatten.
• Any other pattern inconsistent with the file and the code around it.

Rules

• Keep behavior unchanged unless you are fixing a clear bug.
• Prefer minimal, focused edits over broad rewrites.
• Run the nearby tests after the pass. Purify that breaks a test has poisoned the water.

Reply

One to three sentences on what you removed.