/writing-great-skills

PurposeA writing reference skill — the methodology and principles for writing and editing Agent Skills. Defines predictability as the root virtue, detailing invocation type selection (user-invoked vs model-invoked), description writing, information hierarchy (in-skill step / in-skill reference / external reference), split strategies, pruning methods, leading words usage, and failure modes (premature completion, duplication, sediment, sprawl, no-op, negation). The skill itself extensively applies the principles it describes.