Clean Comments

The cheap one is noise: a comment that restates the line below it. It wastes a reader's second, nothing more.

The expensive one is a comment that LIES: a path that moved, a count that grew, a "TEMPORARY" that shipped, a "stubbed" the code refutes. It sends the next reader — human or agent — toward a wrong decision. On a real audit it outnumbered pure paraphrase in cost by a wide margin, and no grid that only asks "does this restate the code?" ever catches it.

So this skill judges truth as well as usefulness, and it protects the comments that carry a why or a constraint — those are an asset, not debt.