Implement v18 property projection reads

CHANGELOG.md

@@ -9,6 +9,18 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Added
 
+- V18 query reads now route linear node property reads, edge property reads,
+  and edge-list property payloads through projection-backed compatibility
+  records instead of decoding raw property keys in the query controller.
+- V18 legacy property projection now exposes `EdgePropertyProjection`, a
+  deterministic read projection from visible `WarpState` edge properties to
+  runtime-backed compatibility records with edge-birth filtering.
+- V18 legacy property projection now exposes `NodePropertyProjection`, a
+  deterministic read projection from visible `WarpState` node properties to
+  runtime-backed compatibility records.
+- V18 legacy property projection now exposes runtime-backed node property key,
+  edge property key, property value, visible node property record, visible
+  edge property record, and projection collection nouns.
 - V18 planning now records detailed design documents for slices 26 through 45,
   covering legacy property projection, property write intents, graph-model
   migration dry-run tooling, genesis replay equivalence, and the next
@@ -58,6 +70,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Fixed
 
+- V18 property projection review follow-up now preserves tolerant public
+  property-query misses, scopes targeted projection materialization to requested
+  owners, skips malformed edge-property projection entries, shares legacy
+  content key constants, and rejects class-instance property carriers.
 - V18 content attachment projection now preserves existing same-patch metadata
   lineage semantics when `_content`, `_content.mime`, and `_content.size` are
   separate operations in one patch.

docs/BEARING.md

@@ -39,14 +39,14 @@ of handwritten adapter folklore.
 
 Current branch state at this boundary:
 
-- Branch: `v18-continuum-slices-26-45-design`
+- Branch: `v18-continuum-slices-26-30`
 - Base branch: `main`
-- Current `origin/main`: `e288c113`
-- Latest merged PR: #97, v18 Continuum slices 21 through 25
+- Current `origin/main`: `c66f1a49`
+- Latest merged PR: #98, v18 design documents for slices 26 through 45
 - Latest released package line: `17.0.1`
 - Latest completed implementation cycle:
-  `0173-v18-content-write-intent-cutover`
-- Current work: documentation-only planning for slices 26 through 45
+  `0178-v18-query-property-projection-reads`
+- Current work: implementation branch `v18-continuum-slices-26-30`
 
 The current v18 graph-model posture is:
 
@@ -79,10 +79,14 @@ PRs #94 through #96 had already landed the earlier v18 evidence posture,
 generated-family readiness, runtime-boundary source facts, node and edge
 records, generic attachment substrate, and graph-op algebra groundwork.
 
+PR #98 landed the detailed design documents for slices 26 through 45 and
+reset this bearing around the property-projection, migration dry-run, and
+genesis-equivalence runway.
+
 ## What Feels Wrong
 
-- Property reads still have direct raw legacy property interpretation in
-  places such as query reads and state-reader context code.
+- Some non-query read surfaces still have direct raw legacy property
+  interpretation, especially state-reader context code.
 - Generic property writes still lower directly to legacy property operations;
   content writes are intent-backed, but property writes are not.
 - Content persistence still uses legacy `_content*` compatibility properties.
@@ -160,15 +164,15 @@ and concrete checks live in `docs/invariants/`.
 - [x] 23. Add content attachment projection.
 - [x] 24. Route public content reads through content projection.
 - [x] 25. Route content writes through typed write intent.
-- [ ] 26. Reset the post-25 property projection runway:
+- [x] 26. Reset the post-25 property projection runway:
   [0174](design/0174-v18-post-25-property-projection-runway/v18-post-25-property-projection-runway.md).
-- [ ] 27. Add legacy property projection nouns:
+- [x] 27. Add legacy property projection nouns:
   [0175](design/0175-v18-legacy-property-projection-nouns/v18-legacy-property-projection-nouns.md).
-- [ ] 28. Add node property projection:
+- [x] 28. Add node property projection:
   [0176](design/0176-v18-node-property-projection/v18-node-property-projection.md).
-- [ ] 29. Add edge property projection:
+- [x] 29. Add edge property projection:
   [0177](design/0177-v18-edge-property-projection/v18-edge-property-projection.md).
-- [ ] 30. Route query property reads through projection:
+- [x] 30. Route query property reads through projection:
   [0178](design/0178-v18-query-property-projection-reads/v18-query-property-projection-reads.md).
 - [ ] 31. Route state-reader property views through projection:
   [0179](design/0179-v18-state-reader-property-projection/v18-state-reader-property-projection.md).

docs/design/0174-v18-post-25-property-projection-runway/v18-post-25-property-projection-runway.md

@@ -1,11 +1,12 @@
 ---
 cycle: 0174
 task_id: V18_post_25_property_projection_runway
-status: Planned
+status: Complete
 sponsors:
   human: James
   agent: Codex
 started_at: 2026-05-23
+completed_at: 2026-05-23
 release_home: v18.0.0
 bearing_task: 26
 promotes_backlog:
@@ -84,8 +85,8 @@ work needed to make that claim later.
 
 ## RED Plan
 
-No regression test is required for the documentation-only slice. The failure
-condition is stale or missing planning evidence:
+No regression test was required for the documentation-only slice. The failure
+condition was stale or missing planning evidence:
 
 - `BEARING.md` still describes the pre-PR-97 branch;
 - slices 26 through 45 are not all represented by design documents;
@@ -94,9 +95,9 @@ condition is stale or missing planning evidence:
 
 ## GREEN Plan
 
-Add one design file for each slice from 26 through 45. Rewrite `BEARING.md`
-around the current main-line state, the merged slice-21-through-25 work, and
-the next twenty planned moves.
+One design file now exists for each slice from 26 through 45. `BEARING.md`
+was rewritten around the current main-line state, the merged
+slice-21-through-25 work, and the next twenty planned moves.
 
 The text must describe property bags as compatibility views and graph
 attachments as the emerging substrate. It must also preserve the honest
@@ -110,9 +111,18 @@ npx markdownlint-cli2 CHANGELOG.md docs/BEARING.md docs/design/0174-v18-post-25-
 git diff --check HEAD
 ```
 
+Observed on closeout:
+
+```text
+npx markdownlint-cli2 CHANGELOG.md docs/BEARING.md docs/design/0174-v18-post-25-property-projection-runway/v18-post-25-property-projection-runway.md
+Summary: 0 error(s)
+
+git diff --check HEAD
+```
+
 ## Closeout Criteria
 
-- `BEARING.md` names the current merged PR #97 state.
+- `BEARING.md` names the current merged PR #98 state.
 - Slices 26 through 45 are listed and linked.
 - Each planned slice has a design document.
 - The changelog records the planning update under `Unreleased`.

docs/design/0175-v18-legacy-property-projection-nouns/v18-legacy-property-projection-nouns.md

@@ -1,11 +1,12 @@
 ---
 cycle: 0175
 task_id: V18_legacy_property_projection_nouns
-status: Planned
+status: Complete
 sponsors:
   human: James
   agent: Codex
 started_at: 2026-05-23
+completed_at: 2026-05-23
 release_home: v18.0.0
 bearing_task: 27
 promotes_backlog:
@@ -80,22 +81,29 @@ hide or preserve them for the public property API.
 
 ## RED Plan
 
-Add tests that fail because no runtime-backed projection nouns exist:
+Added tests that failed because no runtime-backed projection nouns existed:
 
 - constructing a node property record from a malformed node id fails;
 - constructing an edge property record from malformed edge coordinates fails;
 - content compatibility keys are classified deterministically;
 - property records expose owner, key, and value without exposing mutable
   carrier objects.
 
+Observed RED:
+
+```text
+npx vitest run test/unit/domain/graph/LegacyPropertyProjection.test.ts --reporter=verbose
+Error: Cannot find module '../../../../src/domain/graph/LegacyEdgePropertyKey.ts'
+```
+
 ## GREEN Plan
 
-Create one file per concept. Constructors validate the smallest possible
+Created one file per concept. Constructors validate the smallest possible
 runtime boundary and freeze instances. Dispatch uses `instanceof` where the
 code needs to distinguish node and edge property records.
 
-Export the nouns through the graph substrate public surface only after tests
-prove the intended construction and read behavior.
+The nouns are exported through the graph substrate public surface after tests
+proved the intended construction and read behavior.
 
 ## Verification
 
@@ -107,6 +115,19 @@ npm run lint:sludge
 git diff --check HEAD
 ```
 
+Observed GREEN:
+
+```text
+npx vitest run test/unit/domain/graph/LegacyPropertyProjection.test.ts --reporter=verbose
+Test Files  1 passed (1)
+Tests  5 passed (5)
+
+npx eslint src/domain/graph/LegacyPropertyKeyClassification.ts src/domain/graph/LegacyNodePropertyKey.ts src/domain/graph/LegacyEdgePropertyKey.ts src/domain/graph/LegacyPropertyValue.ts src/domain/graph/VisibleNodePropertyRecord.ts src/domain/graph/VisibleEdgePropertyRecord.ts src/domain/graph/LegacyPropertyProjection.ts src/domain/graph/publicGraphSubstrate.ts test/unit/domain/graph/LegacyPropertyProjection.test.ts
+
+npm run typecheck
+npm run lint:sludge
+```
+
 ## Closeout Criteria
 
 - Property compatibility has named runtime forms.
@@ -116,10 +137,11 @@ git diff --check HEAD
 
 ## SSJS Scorecard
 
-- Runtime-backed forms: green when each property concept is a frozen class.
-- Boundary validation: green when raw keys are decoded once and invalid keys
-  fail closed.
-- Behavior ownership: green when key classification lives with the projection.
+- Runtime-backed forms: green; each property concept is a frozen class.
+- Boundary validation: green; raw key values are validated by property key
+  nouns.
+- Behavior ownership: green; key classification lives with the key noun
+  concept.
 - Message parsing: green; no behavior branches on diagnostics.
 - Ambient time or entropy: green; no clocks or randomness.
 - Fake shape trust or cast-cosplay: green when no assertions or placeholder

docs/design/0176-v18-node-property-projection/v18-node-property-projection.md

@@ -1,11 +1,12 @@
 ---
 cycle: 0176
 task_id: V18_node_property_projection
-status: Planned
+status: Complete
 sponsors:
   human: James
   agent: Codex
 started_at: 2026-05-23
+completed_at: 2026-05-23
 release_home: v18.0.0
 bearing_task: 28
 promotes_backlog:
@@ -77,33 +78,52 @@ lower records back to the existing public object shape.
 
 ## RED Plan
 
-Add tests that currently fail without the projection:
+Added tests that failed without the projection:
 
 - a live node with two properties projects two immutable records;
 - a removed node's property register does not appear;
 - malformed or edge-shaped property keys are rejected or ignored according to
   the existing visible-state policy;
 - content compatibility keys are classified consistently.
 
+Observed RED:
+
+```text
+npx vitest run test/unit/domain/services/NodePropertyProjection.test.ts --reporter=verbose
+Error: Cannot find module '../../../../src/domain/services/NodePropertyProjection.ts'
+```
+
 ## GREEN Plan
 
-Implement a small projection object or service with explicit methods such as
-`projectVisibleNodeProperties(state)`. Keep supporting helpers private and
-concept-named. Avoid a `utils` file.
+Implemented `NodePropertyProjection` with explicit `fromState()` and
+`forNode()` methods. Supporting functions stay private and concept-named.
 
-The implementation should reuse existing node-record projection rather than
-recomputing node liveness in a second ad hoc way.
+The implementation reuses `WarpState.getNodeRecord()` for node liveness
+instead of recomputing liveness in a second ad hoc way.
 
 ## Verification
 
 ```text
-npx vitest run test/unit/domain/graph/NodePropertyProjection.test.ts --reporter=verbose
-npx eslint src/domain/graph test/unit/domain/graph/NodePropertyProjection.test.ts
+npx vitest run test/unit/domain/services/NodePropertyProjection.test.ts --reporter=verbose
+npx eslint src/domain/services/NodePropertyProjection.ts test/unit/domain/services/NodePropertyProjection.test.ts
 npm run typecheck
 npm run lint:sludge
 git diff --check HEAD
 ```
 
+Observed GREEN:
+
+```text
+npx vitest run test/unit/domain/services/NodePropertyProjection.test.ts --reporter=verbose
+Test Files  1 passed (1)
+Tests  4 passed (4)
+
+npx eslint src/domain/services/NodePropertyProjection.ts test/unit/domain/services/NodePropertyProjection.test.ts
+
+npm run typecheck
+npm run lint:sludge
+```
+
 ## Closeout Criteria
 
 - Visible node property projection exists as a named domain service.
@@ -113,12 +133,11 @@ git diff --check HEAD
 
 ## SSJS Scorecard
 
-- Runtime-backed forms: green when visible node properties are records, not
-  raw object fragments.
-- Boundary validation: green when legacy key decoding happens at projection
-  entry.
-- Behavior ownership: green when node visibility and property classification
-  belong to the projection.
+- Runtime-backed forms: green; visible node properties are records, not raw
+  object fragments.
+- Boundary validation: green; legacy key decoding happens at projection entry.
+- Behavior ownership: green; node visibility belongs to `WarpState` and
+  property classification belongs to the property key noun.
 - Message parsing: green; no message-string branching.
 - Ambient time or entropy: green; no clock or random source.
 - Fake shape trust or cast-cosplay: green when no assertions are needed.