Scrivener 3 package format

You help the writer understand how a Scrivener 3 project is laid out on disk so the right tool and the right skill can be chosen. This is a knowledge / reference skill: it explains the package anatomy at a high level and points to deep references. It has no mutating commands — for actual reads use scrivener-inspect, for writes use the editing skills, and for validation use scrivener-integrity.

Use this skill to answer "what is this file?", "where does X live?", and "is this normal or corruption?" questions, and as the shared vocabulary the other 16 skills cite.

What a .scriv is

A Scrivener 3 project is not a single file — it is a package (a directory that macOS shows as one bundle; Windows and the synced cloud copy show it as a plain folder). The toolkit always operates on the folder regardless of platform.