run datomic console

Without console: Entity 0 (also called :db.part/db) references all partitions and schema, so you can query or pull from it. You can also just query attribute attributes (like :db/valueType for eg) directly. All schema lives alongside data in the same database as mostly-normal entities

This is our snippet, on datomic-cloud:

(defn- our-attr? [attr]
  (and
    (not (.startsWith (namespace attr) "db"))
    (not (.startsWith (namespace attr) "fressian"))))

(defn schema
  "Returns a data representation of db schema."
  [db]
  (->> (d/pull db '{:eid 0 :selector [{:db.install/attribute [*]}]})
    :db.install/attribute
    (map #(update % :db/valueType :db/ident))
    (map #(update % :db/cardinality :db/ident))))

(defn our-schema
  "Returns a data representation of our schema, excluding Datomic attrs."
  [db]
  (filter
    #(our-attr? (:db/ident %))
    (schema db)))

And this from @U0508JRJC needs more visibility: https://github.com/JarrodCTaylor/schema-cartographer-cloud and https://schema-cartographer.com/

I’m overwhelmed by the support here. Sincerely, thank you.