ARC skill: space

DID Space is Arc’s durable data plane: path-addressed objects that apps can treat as the default persistence layer so they do not need a separate database plus object storage. Space is an AFS implementation optimized for that model — not “another cloud drive.”

Offline booklet only. Prefer live explain / /.knowledge after a daemon is up (arc skill show daemon, arc skill show afs).

Prefer

1. arc skill list → this booklet when the task is store / list / persist
2. Live paths: arc afs explain /spaces, arc afs read /.knowledge
3. CLI ops: arc space --help (verify flags; do not invent subcommands)

Product rules (do not invent ontology)