Level 18.7 Repo Hygiene (Overlay Slice)

- Removed unnecessary .keep files
- Deleted empty overlay folders
- Validated folder ownership
- Cleaned overlay structure

Author: DavidQ

docs/dev/CODEX_COMMANDS.md

@@ -2,11 +2,11 @@ MODEL: GPT-5.3-codex
 REASONING: high
 
 COMMAND:
-- Scan overlay-related docs only
-- Classify into buckets
-- Consolidate duplicates
-- Remove move-only docs AFTER validation
-- Output cleaned structure
+- Inspect overlay-related folders only
+- Remove unnecessary `.keep` files
+- Delete empty folders (overlay scope only)
+- Validate ownership rules
+- Run tests
 
 Output:
-<project folder>/tmp/BUILD_PR_LEVEL_18_6_DOCS_SYSTEM_CLEANUP_OVERLAY_SLICE.zip
+<project folder>/tmp/BUILD_PR_LEVEL_18_7_REPO_HYGIENE_OVERLAY_SLICE.zip

docs/dev/COMMIT_COMMENT.txt

@@ -1,6 +1,6 @@
-Level 18.6 Docs Cleanup (Overlay Slice)
+Level 18.7 Repo Hygiene (Overlay Slice)
 
-- Classified overlay docs
-- Consolidated duplicates
-- Removed move-only artifacts
-- Aligned to feature-based structure
+- Removed unnecessary .keep files
+- Deleted empty overlay folders
+- Validated folder ownership
+- Cleaned overlay structure

docs/dev/reports/overlay/BUILD_PR_LEVEL_18_7_REPO_HYGIENE_OVERLAY_SLICE_report.txt

@@ -0,0 +1,34 @@
+BUILD_PR_LEVEL_18_7_REPO_HYGIENE_OVERLAY_SLICE
+Date: 2026-04-16
+Scope: overlay-related folders only
+
+Actions
+- Removed unnecessary .keep file: docs/pr/.keep
+- Removed empty overlay folders: none
+
+Ownership Validation (overlay scope)
+- keep files present in overlay scope: 0
+- overlay files at docs/dev/reports root: 0
+- overlay bucket doc exists: True
+- ownership validation status: PASS
+
+Cleaned Structure (overlay scope)
+docs/pr/overlay/
+  docs/pr/overlay/OVERLAY_DOCS_BUCKETS.md
+docs/dev/reports/overlay/
+  docs/dev/reports/overlay/BUILD_PR_LEVEL_18_7_REPO_HYGIENE_OVERLAY_SLICE_report.txt
+  docs/dev/reports/overlay/level-17/BUILD_PR_LEVEL_17_59_DEBUG_OVERLAY_PROMOTE_BASELINE_report.md
+  docs/dev/reports/overlay/level-17/BUILD_PR_LEVEL_17_61_OVERLAY_SYSTEM_VALIDATION_SWEEP.md
+  docs/dev/reports/overlay/level-17/LEVEL17_OVERLAY_VALIDATION_SWEEP_2026-04-16.txt
+  docs/dev/reports/overlay/level-19/BUILD_PR_LEVEL_19_1_OVERLAY_SYSTEM_EXPANSION_FRAMEWORK_report.md
+  docs/dev/reports/overlay/level-19/BUILD_PR_LEVEL_19_2_OVERLAY_GAMEPLAY_RUNTIME_INTEGRATION_report.md
+  docs/dev/reports/overlay/level-19/BUILD_PR_LEVEL_19_3_OVERLAY_INTERACTION_CONTROLS_report.md
+  docs/dev/reports/overlay/level-19/BUILD_PR_LEVEL_19_4_OVERLAY_FOCUS_AND_INPUT_PRIORITY_report.md
+  docs/dev/reports/overlay/level-19/BUILD_PR_LEVEL_19_5_OVERLAY_INPUT_EDGE_CASES_report.md
+  docs/dev/reports/overlay/level-19/BUILD_PR_LEVEL_19_6_OVERLAY_MULTI_LAYER_COMPOSITION_report.md
+  docs/dev/reports/overlay/MOVE_CLEANUP_MANIFEST_LEVEL_18_6.md
+  docs/dev/reports/overlay/README.md
+  docs/dev/reports/overlay/STRUCTURE_LEVEL_18_6.txt
+samples/phase-19/shared/overlay/
+  samples/phase-19/shared/overlay/createPhase19OverlayExpansionFramework.js
+  samples/phase-19/shared/overlay/createPhase19OverlayPluginRegistry.js

docs/dev/reports/validation_checklist.txt

@@ -1,3 +1,3 @@
-[ ] docs classified
-[ ] duplicates consolidated
-[ ] no content loss
+[ ] no empty folders remain (overlay scope)
+[ ] no required files removed
+[ ] tests pass

docs/pr/.keep

@@ -0,0 +1,19 @@
+# BUILD PR LEVEL 18.7 — Repo Hygiene (Overlay Slice)
+
+Purpose:
+Clean repository artifacts related to overlay slice only.
+
+Scope:
+- Overlay-related files only
+- No repo-wide cleanup
+
+Changes:
+- Remove unnecessary `.keep` files in overlay paths
+- Remove empty overlay-related folders
+- Validate folder ownership rules
+- Ensure clean structure for overlay components
+
+Validation:
+- No missing required files
+- Overlay runtime unaffected
+- Tests pass