arcadia check ROOT [--json]
arcadia lint ROOT [--json]
arcadia stabilize ROOT [--write] [--json]
arcadia rename-alias ROOT OLD NEW [--write] [--json]

ROOT is an explicit .arcadia entry file; includes resolve relative to it.
Mutation commands preview by default. --write applies this invocation's candidate.
Missing UUIDs in a preview are provisional until written. No canonical formatting.
Exit: 0 valid/success (engineering warnings allowed), 1 invalid source or semantic
command rejection, 2 usage, 3 disk/path/conflict/pending-journal/output failure.
No implicit journal recovery. Limits: 64 MiB, 256 files, include depth32/edges1024,
100000 graph objects, 250000 records, 500000 ordered references.
