Soul found commit 2 didn't pass (docs/cultnet-selection-cut.md, 2026-09-22):
empty/blank schemas-keys still reached the evaluator, the shard snapshot ran
its own loop instead of the evaluator, Mesh's v0 wire silently dropped v1-only
selection terms, the Mesh one-pass read could return the wrong schema's
record at a shared key, two decode rules for a foreign schema id disagreed,
dead identity-comparison code from the _projectRecord removal was still live,
and a disposed-socket race could abort a mutation run instead of recording
NO VERDICT. This is Self's fix batch for all of it.
- CultNetSelection.Validate now refuses a blank/whitespace entry inside
schemas or keys, not just an empty array. CultNetSelectionEvaluator no
longer treats [] as "no filter" (the door already refuses it before
evaluation). CultNetV0SelectionLowering is the one place that lowers an
empty or all-blank v0 list to null; CreateRawSnapshotResponse and
CreateShardSnapshotResponse both route through it, and CultMesh's own
Clean() now delegates to it instead of duplicating the rule.
- CreateShardSnapshotResponse no longer carries a private loop or its own
schema/key matching: it builds a CultNetSelection and answers through
CultNetDocumentRegistry.SelectPage (the same evaluator path as the
non-shard snapshot), with the shard's own membership check as a row
filter. Binding-alias expansion now runs on both paths identically.
- ResolveDefaultSelection decides "no schema filter" from the cleaned
recordKeys, not the raw array length. OverlaySelection stops deciding what
a missing override means: any explicit schemaIds/recordKeys override
replaces the default selection wholesale; no override keeps the default
untouched.
- CultMeshSnapshotRequestOptions.Selection is now checked by
EnsureV0Compatible before every send: fields, cites, cited, limit, cursor,
descending, and any non-default projection are refused typed
(CultNetSelectionInvalidException), never silently dropped from the v0
wire message. Mesh sending v1 is FU-Mesh-v1, not this cut.
- CultMeshHotBodySubscription.Selection returns a defensive copy on every
read so its arrays can't be mutated out from under the stored selection.
- ReadDocumentFromSnapshotResponse now searches candidates at one recordKey
in one order - exact schema, then alias, then a foreign schema id decoded
from the payload - instead of one OR'd condition where a case-insensitive
or structurally-lucky candidate could win first. The foreign-id decode
reads the payload's embedded schema version with the registry's shared
CultNetDocumentRegistry.TryReadSchemaVersion and alias-matches it against
the caller's own descriptor directly, rather than resolving to "whichever
registered type owns this schema string" - that resolution is ambiguous
when two document types alias the same schema id (MeshNoteDocument and
MeshNoteAliasDocument in the existing fixtures), which is what broke on
the first pass; TryResolveDescriptorByPayloadSchema stays for its existing
caller (ResolveDescriptorForRawDocument) with a note on when not to use it.
DecodeSnapshotDocuments and the Mesh copy of the payload-schema decode
(RawSnapshotPayloadMatchesSchema/TryReadSchemaVersion) are deleted in
favour of the shared one.
- CultNetDatabaseSubscriptionServer: the dead RecordKey/SchemaId identity
comparisons in Reconcile and ApplyProjectedChange, and the duplicate-key
throw in CreateProjectedSnapshot, are deleted - they can no longer fire
now that a projection's dictionary key is always the record's own key.
A new test flips authorizeRecord per key while the whole request stays
authorized (so DemandActive never toggles) and proves both halves of the
remaining diff: the removal of a now-unauthorized key and the add loop
picking up a newly-authorized one.
- Every NetworkingTests.cs test that starts an IsBackground poll thread now
joins it before its server disposes (about 20 tests; one already did).
- scripts/mutate-dotnet.ps1: a dotnet-test-host crash writing to stderr no
longer throws the whole run away under PowerShell 5.1's
$ErrorActionPreference = 'Stop' (2>&1 on a native command wraps stderr in
a terminating NativeCommandError); Run-Tests catches it and the entry loop
records NO VERDICT instead of aborting every remaining entry.
- Two probe tests: CultNetDatabase_ShardAndNonShardSnapshot_Agree{On
UnfilteredRequest,OnBindingSchemaIdOverride} prove the shard and non-shard
snapshot paths agree, including shard-membership exclusion of a document
outside the shard's key prefix and a binding schema-id override matching
on both paths.
- Mutation entries updated/added to match: the stale NET-D4-FourthMatcher
entry (its anchor was the private loop this batch deleted, not refactored)
is replaced by NET-D4-ShardMembership-Revert; the Mesh entries file's
header miscount ("two of three" loosening entries when there are only
two) is corrected and both previously-surviving loosening mutants
(MESH-DEFAULT-Loosening, MESH-KEY-Loosening) now have killing fixtures;
scripts/mutate-cultnet-selection-fixbatch2.entries.ps1 is new, covering
Reconcile's remaining two mutants.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
_projectRecord (CultNetDatabaseSubscriptionServer.cs) reached no production
caller and ran after authorization with no wire consumer. Removed the field,
constructor parameter, and both call sites in Watch() and
CreateProjectedSnapshot(); projection is a value on a v1 selection now, not a
delegate. The two tests that used projectRecord to simulate a record's
identity changing for the reconcile diff
(DatabaseSubscriptionServer_AuthorizesRequestAndFiltersSnapshotAndLiveRecords,
…ReconcilesDeliveredProjectionAndBodyDemandWhenAuthorityChanges) are rewritten
to drive a real rename through the database (delete the old key, put the new
one) instead, so they still prove authorization filtering and the Reconcile()
diff/body-demand behavior.
Self's ruling (docs/cultnet-selection-cut.md, 2026-09-22): the fourth
schema-matching copy at CultNetDatabase.cs, serving CreateShardSnapshotResponse
and SchemaMatchesCatalogFilter (MatchesRequestedSchema + a duplicate
InferSchemaName), collapses into CultNetSchemaAliasMatching.MatchesAny, the one
matcher landed in commit 1.
Networking tests: 162/162 (was 162/162 after commit 1; no count change, two
tests rewritten not added). Negative grep: _projectRecord|projectRecord empty;
MatchesRequestedSchema gone (one remaining substring hit is
RawSnapshotPayloadMatchesSchema in CultMeshSnapshots.cs, the Mesh copy this
commit does not touch — collapses in the next commit).
Mesh collapse (§4/§11 of the map, ~365 gross lines across CultMesh.cs,
CultMeshSnapshots.cs, CultMeshClient.cs, CultMeshBodyDemand.cs) is not in this
commit; it is large enough to build on its own and follows as commit 2b.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
docs/cultnet-selection-cut.md section 2/4/6/7/8: CultNetSelection (schemas,
keys, fields, cites, cited, projection, descending, limit, cursor) with its
door validation (S1), and CultNetSelectionEvaluator: the single-row Matches
fast path (D6) and the full Select (order, hop, cursor, paging). Neither
reflects over a document; both read only through the cache's public surface
(commit 0).
Three v1 messages beside v0 (cultnet.snapshot_request.v1,
cultnet.database_subscribe.v1, cultnet.snapshot_response_raw.v1), their
schema files under contracts/cultnet, registry entries and dispatch arms.
CultNetSchemaAliasMatching goes internal -> public (D4), the one alias
matcher. CultNetDatabase gains LastWriteSequence(schemaId, key), confirmed
at the one append site (AppendMutationLogEntry) that every committed write
takes a shard-log sequence, including a local PutAsync outside any shard.
Three engines deleted, one evaluator wired in their place:
- CultNetDocumentRegistry: CreateRawSnapshotResponse's reflection loop over
cache.AllEntries and MatchesRequestedSchema gone; cache.AllStoredDocuments
replaces the reflection entirely. v0 lowers into a Selection and walks the
evaluator's own pages so a v0 caller still sees its whole matching set
(D3: v0 has no engine of its own). CreateSelectionResponse/SelectPage/
ToRawRecord/CreateSnapshotRequestV1 added.
- CultNetDatabaseServer: CreateChangeMessage/CreateRawDocumentRecord/Matches/
MatchesSchema/InferSchemaName (122 lines) deleted; CreateSubscription lowers
v0 into a Selection and matches through the evaluator.
- CultNetDatabaseSubscriptionServer: CreateAuthorizedChange/CreateChange/
CreateChangeCore/ResolveWireSchemaId/MatchesRequestedSchema/CreateRawRecord
(92 lines) deleted, replaced by CreateMatchedRecord. _projectRecord and
CreateProjectedSnapshot's collapse are commit 2's, per the map's own
deletion line, and are untouched here.
Discrepancy found and fixed (not in the map): CultNetDocumentBinding can
carry a schema id different from its descriptor's own
(CultNetDocumentBinding.ForDocument's schemaId override), which the old
per-engine matchers checked and a descriptor-only evaluator cannot see by
design (it stays decoupled from CultNetDocumentRegistry). Fixed at the two
call sites and in CultNetDocumentRegistry.SelectPage by resolving the
binding's schema id into the effective selection before evaluation
(CultNetSchemaAliasMatching.WithBindingSchemaAlias,
CultNetDocumentRegistry.ExpandSchemaBindingAliases), not in the evaluator.
Found by DatabaseSubscription_FiltersLiveChangesByWireSchemaBinding timing
out; both call sites now pass.
Second discrepancy, reported not fixed: CultNetDatabase.cs:1707 has a fourth,
undocumented copy of schema-matching logic (MatchesRequestedSchema, private,
serving CreateShardSnapshotResponse), which the map's section 1 audit did not
name among "three separate selector engines". Left untouched this commit:
it is out of the map's explicit deletes list and touching it risks shard
snapshot behavior with no budgeted verification.
Verification: dotnet test tests/GameCult.Networking.Tests - 162 passed (150
existing + 12 new), 0 failed; the seven map-named tests all still pass, two
rewritten for the new signatures (CreateChangeMessage now takes
CultNetSelection; CreateChange/CreateAuthorizedChange collapsed into
CreateMatchedRecord, returning CultNetRawDocumentRecord? directly).
tests/GameCult.Mesh.Tests - 252 passed, 1 pre-existing skip, 0 failed (no
Mesh source touched this commit). tests/GameCult.Caching.Tests - unaffected
(188, unchanged from commit 0).
Negative greps: GetProperty|GetField|GetCustomAttribute in
GameCult.Networking - only against the generic `object change` dispatch
(CultNetDatabaseChange<T>) and CultRecordHandle<T> construction, pre-existing
and out of this cut's scope, never against a document's declared values.
_projectRecord survives in CultNetDatabaseSubscriptionServer.cs (expected,
commit 2). CultNetSchemaAliasMatching is the only schema matcher outside the
one reported discrepancy.
scripts/mutate-dotnet.ps1: the caching mutation runner generalized into a
shared dotnet/NUnit harness (Target/TestProject/Entries/ControlFilter),
replacing scripts/mutate-cultnet-selection-caching.ps1 with an entries file
of the same six mutations (re-verified: all six still KILL). It is now
generic to any NUnit project in this repo, not only this campaign's two
targets - a candidate to sit beside tools/eureka-mutations.ps1 as the
dotnet-side counterpart. Nine new networking entries (S3, S5 x2, S7 x2,
S16 x2, S18) all KILLED. Not yet mutation-run: S1, S2, S6, S23 (pinned by
tests, not by a committed mutant); S9-S15 (subscription reconcile lowering,
v0 no-engine-of-its-own); S17, S20 (pinned by tests only). S19/S21/S22 are
cache-layer, covered in commit 0.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
