error cache-not-readonly

error Standard: [§10.2]

What it means#

A response cache is only correct for calls that do not change state.

oxl✓ checked in CI

service Catalog {
  @cache(ttl: 1s)       // <- cache-not-readonly
  rpc item(id: u64) -> i32
}

error

cache-not-readonly

Mark the rpc @readonly, or drop @cache.