dir-sim: bounded numeric substrate — 64k u16 ordinals, Dn128, ValueId - #1327
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Aligns the merged simulator (#1325) to the operator ruling. Semantics of create / delete / reconcile / compare-and-set / membership guards / canonical order are unchanged; the representation under them changes. - Two populations, users and groups, each <= 65,536 nodes with its own dense u16 ordinal space (UserOrdinal, GroupOrdinal). No u16 value is reserved: a membership whose endpoint does not resolve is kept by identity in a side table, never as a lane value. Past the bound, observation fails (TooManyUsers / TooManyGroups) and a create fails (PopulationFull). - Membership stays sparse (user, group) rows. The lanes are u32 holding u16 values: mask-risc has no 16-bit lane. - Location is Dn128 (16 x u8, explicit depth) under the observation's DirectoryScope. subtree() is one program: located AND depth >= d AND Cmp::MatchFacet16Strided over the [[u8;16]] lane, read in place; a query in another scope is refused. from_ad converts OuHhtl and fails closed at a 257th child. - Strings stop at ingress. Dicts is the cold label/value store (append- only for the store's lifetime); ValueId / KeyId flow through Change, NodeState, Violation and the plan. VersionStore::intern / value / key_of / key_label are the only string boundary. simulate() no longer interns. - lance-graph-quack: expose Cmp::MatchFacet16Strided (mask-risc already had Pred::MatchFacet16Strided); test reads all 16 bytes. Allocation (tests/alloc.rs) at 1,000 / 16,384 / 65,536 users is flat for every mutation; only the delete guard grows 1k -> 16k, by one scratch tile. Recorded, not changed: from_ad still reads a missing userAccountControl as enabled; AD + Entra merge policy stays open. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01G22yT6htkcdyXsihxxXdrg
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📝 WalkthroughWalkthroughThe directory simulator now uses separate user and group populations, interned attribute values, and scoped DN locations. Its query, simulation, diff, and validation paths use these updated representations. Quack adds a strided 16-byte comparison, and tests cover the new limits and query behavior. ChangesDirectory Simulation
Priority: ➖ Normal Estimated code review effort: 4 (Complex) | ~45 minutes Change: Feature Sequence Diagram(s)sequenceDiagram
participant QueryCaller
participant Dicts
participant users_with_key
QueryCaller->>Dicts: Resolve literal to KeyId
Dicts-->>QueryCaller: Return KeyId
QueryCaller->>users_with_key: Query users with KeyId
users_with_key->>users_with_key: Evaluate numeric equality program
Suggested reviewers: Merge Risk: 🟡 Moderate · up to Most of the move to bounded user and group populations looks consistent. One gap remains: if an observed membership points to a user or group that does not yet exist, creating that missing node does not make the membership resolve. Validation can then reject the version as dangling, and group rules can propose duplicate memberships. Resolve this before merging or explicitly accept the limitation. 🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (4 passed)
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Alignment with the existing report boundary (lance-graph-report's boundary.rs / string_fence.rs), not a new mechanism: - Dicts gains DictCounters (interns / lookups / resolutions, relaxed atomics, as report's BoundaryCounters) and non-minting lookup / key_lookup. key_lookup normalizes the literal once and returns the KeyId; an unseen literal is refused at the boundary. - key_eq_program(KeyId) and users_with_key(view, attr, key): one Quack Cmp::EqU32 -> mask-risc Pred::EqU32 over the base key lane (deleted and overridden users gated out), the same program over created users, and a delta-sized check of overrides. - tests/where_eq.rs: one lookup at the boundary, the program holds only the key, execution leaves every text counter unchanged, and the answer covers observed, overridden-away, overridden-onto and created owners. - tests/string_fence.rs: exec / view / validate / rule / lib carry no text types or normalization, with a can-fire half. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01G22yT6htkcdyXsihxxXdrg
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01G22yT6htkcdyXsihxxXdrg
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Review comments at @crates/lance-graph-dir-sim/src/validate.rs:
- Around line 119-130: Update unresolved-membership handling so a live pair is
treated as resolved when both its user and group endpoints now exist. In
crates/lance-graph-dir-sim/src/validate.rs:119-130, skip such pairs during
dangling validation; in crates/lance-graph-dir-sim/src/rule.rs:36-46, include
them in membership counts; and in
crates/lance-graph-dir-sim/src/view.rs:505-524, allow the author to resolve a
removed pair by treating it as resolved when endpoints exist or recording the
re-add in ov.added.
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📒 Files selected for processing (17)
.claude/board/entries/2026-10-05-text-to-numeric-boundary-inventory.md.claude/board/entries/README.mdcrates/lance-graph-dir-sim/src/exec.rscrates/lance-graph-dir-sim/src/lib.rscrates/lance-graph-dir-sim/src/observe.rscrates/lance-graph-dir-sim/src/rule.rscrates/lance-graph-dir-sim/src/snapshot.rscrates/lance-graph-dir-sim/src/store.rscrates/lance-graph-dir-sim/src/validate.rscrates/lance-graph-dir-sim/src/view.rscrates/lance-graph-dir-sim/tests/alloc.rscrates/lance-graph-dir-sim/tests/bounds.rscrates/lance-graph-dir-sim/tests/nodes.rscrates/lance-graph-dir-sim/tests/sim.rscrates/lance-graph-dir-sim/tests/string_fence.rscrates/lance-graph-dir-sim/tests/where_eq.rscrates/lance-graph-quack/src/lib.rs
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Review finding (OGAR#317): Dn128 has no scope, so identical OU paths from two domains are identical codes. from_ad took the caller's scope and ignored DirRecord::scope_guid, silently merging a mixed-domain batch. The scope stays external context, as ruled; it is enforced at the edges: - from_ad refuses a record whose scope_guid is not the observation's (ObserveError::ForeignScope; the location error becomes ObserveError::Location). - VersionStore::diff refuses two versions of different scopes (SimError::ScopeMismatch); plan refuses a latest observation in another scope than the desired version (PlanError::ScopeMismatch). - tests/bounds.rs: same OU path in two scopes -> same Dn128, refused at ingress, at diff and at plan. Ingress tests now encode records under the observation's scope. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01G22yT6htkcdyXsihxxXdrg
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Review finding (CodeRabbit / Codex on #1327): a membership observed with a missing endpoint stayed in the snapshot's unresolved table after a version created that endpoint. is_member said yes, but dangling still reported it (so promote_desired refused the repair) and member_counts / ImplyGroup did not see it. added_rows now resolves the live observed pairs together with the overlay's added pairs, against the current view: pairs whose endpoints both exist become delta-sized ordinal lanes, the rest stay dangling. dangling, member_counts and ImplyGroup all read that one split. Test: create the missing group -> valid, counted, seen by ImplyGroup; remove + re-add round-trips to an empty diff. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01G22yT6htkcdyXsihxxXdrg
The upload step already sets fail_ci_if_error: false, but a TLS handshake failure inside codecov-action itself throws before the uploader runs and still failed the job (EPROTO, SSL alert 40, on #1327 and #1328) after every test had passed. continue-on-error makes the step non-blocking as intended; test failures still fail the cargo llvm-cov step above. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01G22yT6htkcdyXsihxxXdrg
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Depends on AdaWorldAPI/OGAR#317 (merge that first; CI builds against the OGAR checkout).
This aligns the merged simulator (#1325) to the operator ruling. The semantics of create/delete, delta-sized overlays, reconciliation, compare-and-set delete, membership guards and canonical change order are unchanged. The representation underneath them is what changes.
Delta
Populations, each with at most 65,536 nodes and its ownUserOrdinal(u16)/GroupOrdinal(u16). No u16 value is reserved.BuildError::TooManyUsers/TooManyGroupsat observation, andApplyError::PopulationFullon create.(user, group)rows sorted by user, never a dense matrix.[[u8;16]]lane plus a depth lane and a presence plane, underObservation.scope: DirectoryScope.subtree(view, scope, kind, prefix)is one program:located ∧ depth ≥ d ∧ Cmp::MatchFacet16Strided. The 16 bytes are read in place.from_adconvertsOuHhtland fails closed at a 257th child (LocationError).ValuePooloffsets are per batch and not deduplicated, so they are not a stable identity.Dictsis append-only for the store's lifetime, so it is reused as the cold store.VersionStore::intern, the observation) and leave only at egress (value,key_label).Change, compare-and-set, uniqueness (byKeyId) and plan ordering are all numeric.simulate()no longer interns.simand 19nodestests pass after being ported to ids.lance-graph-quack: exposes
Cmp::MatchFacet16Strided; mask-risc already had the predicate. Its test constrains byte 14, past the 12-byte facet.Alignment with the existing text → numeric boundary (df9d30a, 7614c4a)
The pattern already ran in production before this PR.
lance-graph-reporthas aCatalog→FieldIdand CAM ordinal →Cmp::EqU32→Pred::EqU32, fenced bystring_fence.rsand by counters inreference_workload.rs.lance-graph-sap(CatsQuery) also lowers through Quack. dir-sim now follows the same shape:Dictsgains counters, the same shape as report'sBoundaryCounters, plus non-mintinglookup/key_lookup.key_eq_program(KeyId)+users_with_key:WHERE smtp = '…'becomes one QuackEqU32→Pred::EqU32.tests/where_eq.rschecks four things:tests/string_fence.rschecks thatexec,view,validate,ruleandlibcontain no text types.The ids were not unified, on purpose.
ValueIdis its exact text: a different text is aSetAttribute. It lives for the store's lifetime and is persisted inChangeand in plans.Using the CAM ordinal as
ValueIdwould let a rename silently retarget a plan's compare-and-set. The full table of who binds what, with which id, under which lifetime, is in.claude/board/entries/2026-10-05-text-to-numeric-boundary-inventory.md.Java: production lowering is
plan_lower.rs, not Quack. In that crate, Quack is a dev-dependency.lowering_convergenceproves the two give the same answers, not the same Programs. Moving Java onto Quack would be convergence, not invention.Allocation (
tests/alloc.rs, 1k / 16,384 / 65,536 users)The delete guard grows only between 1k and 16,384, by one
Countscratch tile; a tile is capped at 16,384 rows. 100k and 200k directories are no longer representable.Tests
The new
tests/bounds.rscovers:Gates: crate tests 57/57 (
sim24,nodes19,bounds8,alloc1,string_fence2,where_eq1, doctests 2), quack tests pass, clippy-D warningsand fmt are clean.Disable runs (each one red, then restored):
from_ou_hhtlfail-closedwhere_eqoverride-ontowhere_eqoverride-awaywhere_eqcreated rowsOpen, not decided here
ValueIdshould converge onto the contract'sContentId. That id is content identity and stable across reopen, but it is u64 and would need a collision policy.from_adstill reads a missinguserAccountControlas enabled. This is recorded in the module doc and in the OGAR POC doc, not changed.🤖 Generated with Claude Code
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