pipeline:apply_object_schema/2 (+ stage_object_schema/1 factory) — the
object-schema stage between activity-type validation and the kernel
append (plans/fed-sx-host-types.md step 4). When an inbound activity's
:object declares a refinement type ({type, TypeName}), resolve it
(Cfg type_index: TypeName -> TypeCid; then peer_types:lookup_or_fetch/2,
a local hit or a wire fetch) and apply the record's refinement schema
to the object's :field_values, rejecting on schema-fail with
{error, {validation_failed, object_schema}}.
The schema is either a 1-arity Erlang predicate (substrate stand-in,
locally stored) or a term_codec-safe {required, [Field,...]} constraint
(so a wire-fetched record validates too). Default
strict_object_schema = false: an unresolvable type is let through (the
skip is where a validation_skipped log belongs); strict rejects.
Objects with no declared type, and names absent from the local index,
are skipped (open-world).
Test: next/tests/object_schema.sh (15) — local hit, wire fetch, fetch
failure strict/non-strict, no peer_types, untyped object, undeclared
name, fun + data schema forms, no-schema record, stage composition.
No regression: pipeline_signature, pipeline_driver green. Plan doc
steps 1-4 marked done.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Two new DefineActivity-form genesis activity-types for host-type
federation (plans/fed-sx-host-types.md step 1):
- next/genesis/activity-types/define_type.sx — DefineType verb; schema
accepts an :object with a string :name and optional list :fields.
- next/genesis/activity-types/subtype_of.sx — SubtypeOf verb; schema
accepts an :object carrying string :child-type-cid + :parent-type-cid.
Schema bodies use nested `get` (not keyword-threading) so they are
directly evaluatable — keywords are not callable getters in the kernel.
Both registered in manifest.sx (activity-types now 7); the four bootstrap
suites' bundle counts bumped (5->7, total 36->38).
Tests: next/tests/define_type.sh (7), subtype_of.sh (6) — parse shape,
schema accept/reject, term_codec envelope round-trip.
Also load follower_graph + delivery in bootstrap_start.sh: its check-26
publish path exercises outbox:compute_delivery_set/3 (follower_graph:new
+ delivery:delivery_set), which an m2 substrate change had left unloaded
in that suite — a pre-existing red unrelated to the count bump.
Conformance 771/771; all touched next/tests green.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
