[AdaWorldAPI]

Follows the operator ruling on bounded numeric directory coordinates. Merge before the companion lance-graph PR, which builds against this vocabulary.

Delta

ogar-dir-core: dn128

• Dn128 holds 16 levels of u8 codes. Depth is stored beside the codes, so code 0 is a real level and no byte value is reserved as a terminator.
• Bytes past the depth are zero (canonical form).
• subtree_mask() returns the (pattern, care) pair for a ternary match. It has to be paired with a depth gate.
• DirectoryScope(Guid128) is the domain or tenant. It is external context and never a level.
• Dn128::from_ou_hhtl converts the ingress OuHhtl. It fails closed with ChildCodeOverflow when a parent has more than 256 children. It never hashes or truncates. OuHhtl stays as the record-wire and ingress format.

ogar-dir-sim: numeric vocabulary

• ValueId and KeyId are stable ids issued by the executor's cold label/value store.
• NodeState, Change::SetAttribute, Operation::SetAttribute, Precondition::AttributeEquals and Violation::Duplicate{Smtp,Upn} now carry ids instead of strings.
• NodeState.dn: Option<Dn128> replaces ou.
• ExecutionPlan::from_diff(…, key: Fn(ValueId) -> KeyId): rename-chain ordering compares comparison keys.
• normalize stays, and is documented as ingress-only.

docs/DIRECTORY-SIMULATION-POC.md

• V3 is closed by the Dn128 ruling.
• V4 stays open. It records, without changing it, that a missing userAccountControl currently reads as enabled.
• The allocation figures are updated to 1k / 16,384 / 65,536.

Tests

• ogar-dir-core: 13 tests, including 4 new for dn128:
  • code 0 is a level;
  • a 17th level is refused;
  • conversion fails closed at 257;
  • a subtree query needs the depth gate.
• ogar-dir-sim: 9 tests. ogar-ad: 6 tests.
• Clippy -D warnings and fmt are clean.
• Disable check: making from_ou_hhtl truncate (as u8) turns the dn128 test red here, and turns the 257-child ingress test red in lance-graph.

Open, not decided here

• The AD + Entra "active" merge policy (V4).
• Missing UAC is read as enabled. This is recorded, not fixed.

🤖 Generated with Claude Code

https://claude.ai/code/session_01G22yT6htkcdyXsihxxXdrg

---

Generated by Claude Code

Summary by CodeRabbit

• Improvements
  • Directory simulations now handle hierarchy locations consistently, with clear limits for hierarchy depth and child entries.
  • Attribute changes are compared using stable identities, improving detection of duplicate addresses and ordering of conflicting updates.
  • Plans can identify release-before-claim dependencies even when values have different identities.
• Documentation
  • Updated the simulation specification with hierarchy limits, identity handling, and snapshot capacity details.

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Reviewing files that changed from the base of the PR and between 432fbd7 and 1545025.

📒 Files selected for processing (2)

• crates/ogar-dir-sim/src/plan.rs
• docs/DIRECTORY-SIMULATION-POC.md

📝 Walkthrough

Walkthrough

The pull request adds a 16-level directory hierarchy coordinate and numeric value and comparison-key identities to the simulation model. It updates transfer ordering to use comparison keys and adjusts unspecified SurrealQL parser settings to use defaults.

Changes

Directory simulation model

Layer / File(s)	Summary
Hierarchy representation and scope crates/ogar-dir-core/src/dn128.rs, crates/ogar-dir-core/src/lib.rs, docs/DIRECTORY-SIMULATION-POC.md	The core crate exposes Dn128 and DirectoryScope. The specification describes hierarchy conversion and matching, snapshot populations and allocation measurements, and recorded model constraints.
Simulation identity types crates/ogar-dir-sim/src/change.rs, crates/ogar-dir-sim/src/lib.rs, crates/ogar-dir-sim/src/violation.rs, docs/DIRECTORY-SIMULATION-POC.md	Node state and attribute changes use ValueId; duplicate violations use KeyId. The crate exports both types, and the specification describes their use and lifecycle.
Key-based transfer ordering crates/ogar-dir-sim/src/plan.rs	ExecutionPlan::from_diff accepts a ValueId-to-KeyId mapping. Transfer ordering uses mapped keys, and tests cover release-before-claim ordering, canonical ordering, and cycles.

SurrealQL parser configuration

Layer / File(s)	Summary
Default parser configuration crates/ogar-adapter-surrealql/src/lib.rs	The parser uses Config::default() for unspecified fields while retaining its explicit depth limit and warning and feature settings.

Priority: ➖ Normal

Estimated code review effort: 3 (Moderate) | ~25 minutes

Change: Feature

Suggested reviewers: claude

Merge Risk: 🔵 Low · up to 432fb

The implementation is mergeable with a documentation correction: the specification currently gives conflicting guidance for the companion hierarchy implementation.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 78.57% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 28 functions across 7 files. (1 skipped: …	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly names the main changes: the Dn128 hierarchy coordinate and numeric ValueId vocabulary.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

Full details: Docstring Coverage

Explanation

Docstring coverage is 78.57% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 28 functions across 7 files. (1 skipped: 1 unsupported.)

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_{I’m a rabbit with a map of bytes,
Sixteen little paths through leafy gates.
Value keys hop, plans fall in line,
Defaults fill the parser’s design.
I thump and tuck this change away,
Then nibble clover through the day.}

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(requestId: d30814fa-3926-4569-af47-87e002b20ac8)

[AdaWorldAPI]

The cargo check + test failure on 108bd2f was in cargo test -p ogar-adapter-surrealql --features surrealdb-parser. This PR's diff doesn't touch that crate.

What broke: the floating AdaWorldAPI/surrealdb#main dependency (no lockfile is tracked) added three fields to surrealdb_parser::Config: quirk_redefine, quirk_block_first_no_semi and quirk_delete_permission_field. The adapter's exhaustive struct initializer stopped compiling, and main fails the same way on any fresh resolve.

Fix (ported here, 432fbd7): keep the explicit settings and fill the rest with ..Config::default(), which leaves all quirks off. Locally, the adapter's 35 tests pass with the feature on and fmt is clean.

---

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Actionable comments posted: 1

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• 🪄 Fix CodeRabbit comments on this PR

🤖 Prompt to fix review comments

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Inline comments:
Review comments at @docs/DIRECTORY-SIMULATION-POC.md:
- Around line 181-183: Update the earlier hierarchy descriptions to match the
current subtree contract: replace the active `Cmp::MatchU64` over packed
`OuHhtl` description with `MatchFacet16Strided`, and describe `NodeState` as
storing `Option<Dn128>`. Alternatively, clearly label the old matcher
description as historical; keep `OuHhtl` as the ingress and record-wire format.

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⚙️ Run configuration

• Configuration used: Organization UI
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• Run ID: ba68ff06-58b1-4d41-a00c-42896eafafe4

📥 Commits

Reviewing files that changed from the base of the PR and between 988bd16 and 432fbd7.

📒 Files selected for processing (8)

• crates/ogar-adapter-surrealql/src/lib.rs
• crates/ogar-dir-core/src/dn128.rs
• crates/ogar-dir-core/src/lib.rs
• crates/ogar-dir-sim/src/change.rs
• crates/ogar-dir-sim/src/lib.rs
• crates/ogar-dir-sim/src/plan.rs
• crates/ogar-dir-sim/src/violation.rs
• docs/DIRECTORY-SIMULATION-POC.md

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