Agent Skills: editing

Use when copy already exists and an editor runs its ship-gate checks before the copy clears — line (reads clean), voice (sounds like this product), slop (nothing generic), or strategy (earns the next step). Holds the four disjoint check groups, the sole de-slop checklist, and the additive distinctiveness check. TRIGGER when reviewing, sweeping, tightening, proofing, or de-slopping a draft, or when an editor agent loads it by name. DO NOT TRIGGER for writing new copy from a brief — that's copywriting.