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+# DeliveryOperations Discovery and Compatibility Audit
+
+**Status:** Discovery and Audit Baseline
+**Verdict:** PACKAGE AUDIT COMPLETE - WITH EXPLICIT HOST-USAGE VERIFICATION GAP
+
+## 1. Audited State
+
+- **Date:** 2026-07-23
+- **Audited main SHA:** `3d6abd502d7d82ac05828ac0beb2066e3dfc35d0`
+- **Governing Documents Inspected:** `AGENTS.md`, `EVENT_LOGGING_PACKAGE_REFERENCE.md`, `CHANGELOG.md`, `docs/standards/PACKAGE_BUILDING_STANDARD.md`, `docs/architecture/ADMIN_QUERY_API_ARCHITECTURE.md`, `docs/roadmap/ADMIN_QUERY_API_ROADMAP.md`, `docs/audits/ADMIN_QUERY_PHASE_1_RUNTIME_COMPATIBILITY_INVENTORY.md`, `docs/audits/DOCUMENTATION_INVENTORY.md`
+- **Released Baseline:** Tag `v1.0.0`
+- **Inspected Paths:** `src/DeliveryOperations/`, `tests/Unit/DeliveryOperations/`, `tests/Integration/DeliveryOperations/`, `src/Provider/`, `src/Factory/`, `src/Bootstrap/`, `schema/`, `EVENT_LOGGING_PACKAGE_REFERENCE.md`
+- **Verification Gaps:** Host repositories are inaccessible in this environment.
+
+## 2. Complete DeliveryOperations Inventory
+
+### Current implementation (`src/DeliveryOperations/`)
+- `src/DeliveryOperations/Command/RecordDeliveryOperationCommand.php` - Protected contract
+- `src/DeliveryOperations/Contract/DeliveryOperationsLoggerInterface.php` - Protected contract
+- `src/DeliveryOperations/Contract/DeliveryOperationsPolicyInterface.php` - Protected contract
+- `src/DeliveryOperations/Contract/DeliveryOperationsQueryInterface.php` - Protected contract
+- `src/DeliveryOperations/DTO/DeliveryOperationRecordDTO.php` - Protected contract
+- `src/DeliveryOperations/DTO/DeliveryOperationsQueryDTO.php` - Protected contract
+- `src/DeliveryOperations/DTO/DeliveryOperationsViewDTO.php` - Protected contract
+- `src/DeliveryOperations/Database/schema.maa_event_logging_delivery_operations.sql` - Protected contract (Schema)
+- `src/DeliveryOperations/Enum/DeliveryActorTypeInterface.php` - Protected contract
+- `src/DeliveryOperations/Enum/DeliveryChannelEnum.php` - Protected contract
+- `src/DeliveryOperations/Enum/DeliveryOperationTypeEnum.php` - Protected contract
+- `src/DeliveryOperations/Enum/DeliveryStatusEnum.php` - Protected contract
+- `src/DeliveryOperations/Exception/DeliveryOperationsStorageException.php` - Protected contract
+- `src/DeliveryOperations/Infrastructure/Mysql/DeliveryOperationsLoggerMysqlRepository.php` - Protected published Runtime surface (internals may be refactored if behavior remains compatible)
+- `src/DeliveryOperations/Infrastructure/Mysql/DeliveryOperationsQueryMysqlRepository.php` - Protected published Runtime surface (internals may be refactored if behavior remains compatible)
+- `src/DeliveryOperations/README.md` - Historical/irrelevant to Admin Query (current supporting documentation, not part of the protected Runtime compatibility surface)
+- `src/DeliveryOperations/Recorder/DeliveryOperationsDefaultPolicy.php` - Protected published Runtime surface (internals may be refactored if behavior remains compatible)
+- `src/DeliveryOperations/Recorder/DeliveryOperationsRecorder.php` - Protected contract (Write boundary)
+
+### Tests
+- `tests/Integration/DeliveryOperations/DeliveryOperationsRepositoryTest.php`
+- `tests/Unit/DeliveryOperations/Command/RecordDeliveryOperationCommandTest.php`
+- `tests/Unit/DeliveryOperations/DTO/DeliveryOperationRecordDTOTest.php`
+- `tests/Unit/DeliveryOperations/DTO/DeliveryOperationsQueryDTOTest.php`
+- `tests/Unit/DeliveryOperations/DTO/DeliveryOperationsViewDTOTest.php`
+- `tests/Unit/DeliveryOperations/Recorder/DeliveryOperationsDefaultPolicyTest.php`
+- `tests/Unit/DeliveryOperations/Recorder/DeliveryOperationsRecorderTest.php`
+- `tests/Unit/DeliveryOperations/Repository/DeliveryOperationsLoggerMysqlRepositoryTest.php`
+- `tests/Unit/DeliveryOperations/Repository/DeliveryOperationsQueryMysqlRepositoryTest.php`
+
+### Package Reference Sections
+- Sections reviewed: Domain index `DeliveryOperations`, `DeliveryOperationsFactory` instantiation reference, Domain query capabilities (primitive `DeliveryOperationsQueryInterface` and `DeliveryOperationsQueryDTO`), Domain-specific policy interface `DeliveryOperationsPolicyInterface`, Exceptions boundary `DeliveryOperationsStorageException`, and Fail-open at recorder boundary references in `EVENT_LOGGING_PACKAGE_REFERENCE.md`.
+
+### External Tests
+- Searched entire `tests/` outside `tests/*/DeliveryOperations/` for Factory/Provider/Bindings references.
+- Exact search returned no tests covering DeliveryOperations bindings outside its own domain folder.
+
+### Factories and Bindings
+- `src/Factory/DeliveryOperationsFactory.php` - Protected contract
+- `src/Provider/EventLoggingProvider.php` (accessor) - Protected contract
+- `src/Provider/EventLoggingProviderFactory.php` - Protected contract
+- `src/Bootstrap/EventLoggingBindings.php` - Protected contract
+
+*Note: No DeliveryOperations Regression test file exists.*
+
+## 3. Protected Primitive Query Contract
+
+### Interface: `DeliveryOperationsQueryInterface`
+- `public function find(DeliveryOperationsQueryDTO $query): array;`
+- **Exceptions:** `@throws DeliveryOperationsStorageException`
+
+### Request DTO: `DeliveryOperationsQueryDTO`
+- **Constructor:**
+  ```php
+  public function __construct(
+      public ?\DateTimeImmutable $after = null,
+      public ?\DateTimeImmutable $before = null,
+      public ?string $actorType = null,
+      public ?int $actorId = null,
+      public ?string $targetType = null,
+      public ?int $targetId = null,
+      public ?string $channel = null,
+      public ?string $operationType = null,
+      public ?string $status = null,
+      public ?string $requestId = null,
+      public ?string $correlationId = null,
+      public ?\DateTimeImmutable $cursorOccurredAt = null,
+      public ?int $cursorId = null,
+      public int $limit = 50
+  )
+  ```
+- **Rules:** Performs no validation or normalization. Empty strings remain equality-filter values (no implicit normalization). Zero/negative actor, target, and cursor IDs are not rejected by the query DTO.
+- Serializes keys: `after`, `before`, `actorType`, `actorId`, `targetType`, `targetId`, `channel`, `operationType`, `status`, `requestId`, `correlationId`, `cursorOccurredAt`, `cursorId`, `limit`.
+
+### View DTO: `DeliveryOperationsViewDTO`
+- Fully maps `maa_event_logging_delivery_operations` columns.
+- **Constructor:**
+  ```php
+  public function __construct(
+      public int $id,
+      public string $eventId,
+      public string $channel,
+      public string $operationType,
+      public ?string $actorType,
+      public ?int $actorId,
+      public ?string $targetType,
+      public ?int $targetId,
+      public string $status,
+      public int $attemptNo,
+      public ?\DateTimeImmutable $scheduledAt,
+      public ?\DateTimeImmutable $completedAt,
+      public ?string $correlationId,
+      public ?string $requestId,
+      public ?string $provider,
+      public ?string $providerMessageId,
+      public ?string $errorCode,
+      public ?string $errorMessage,
+      public ?array $metadata,
+      public \DateTimeImmutable $occurredAt
+  )
+  ```
+- Timestamps serialize using `DATE_ATOM`.
+- **Selected Columns:** The repository currently uses `SELECT *`; it does **not** use an explicit selected-column list.
+
+### Implementation: `DeliveryOperationsQueryMysqlRepository`
+- **Constructor:** `public function __construct(private readonly PDO $pdo)`
+- **Filters:** independent bindings for `actor_type`, `actor_id`, `target_type`, `target_id`, `channel`, `operation_type`, `status`, `request_id`, `correlation_id`, `after`, `before`.
+- **Inclusive Date Boundaries:** `occurred_at >= :after` and `occurred_at <= :before`.
+- **Cursor Logic:** `< cursor_at OR (= cursor_at AND id < cursor_id)`. Cursor filtering activates only when both cursor values are non-null; a partial cursor is ignored.
+- **Sort Order:** `occurred_at DESC, id DESC`.
+- **Limit Rules:** Behavior is `max(1, $query->limit)` with no maximum clamp.
+- **Placeholders:** The cursor SQL reuses `:cursor_at` twice. Native-PDO distinct-placeholder compatibility is therefore **not proven** and the current implementation conflicts with the repository distinct-placeholder rule. This is a factual primitive implementation gap for later correction.
+- **Hydration:** Corrupt JSON returns `null`. Scalar JSON and numeric-list JSON also return `null` by code behavior, but existing tests only directly prove the corrupt-JSON case. Timestamps are hydrated as UTC `DateTimeImmutable`. `channel`, `operationType`, and `status` are hydrated as raw strings, passing through unknown persisted values rather than invoking enum fallback.
+- **Transactions:** The repository does not begin, commit, or roll back transactions. Caller-owned transactions are preserved by code structure, but no direct transaction test currently proves it.
+- **Serialization Evidence:** DTO JSON serialization uses `DATE_ATOM` and does not preserve six-digit microseconds in serialized output. Exact microsecond preservation is not directly proven by current tests.
+- **Exception Boundary:** `PDOException` maps to the `Failed to query DeliveryOperations records:` prefix. Non-PDO mapping/hydration failures map through the separate `Throwable` catch to `Failed to map DeliveryOperations row:`. Previous throwable is preserved in both cases.
+
+## 4. Write-Side Compatibility Boundary
+
+- **`DeliveryOperationsRecorder`:**
+  - `public function __construct(private readonly DeliveryOperationsLoggerInterface $writer, private readonly ClockInterface $clock, private readonly ?LoggerInterface $fallbackLogger = null, ?DeliveryOperationsPolicyInterface $policy = null)`
+  - **Constructor behavior:** The class owns `private readonly DeliveryOperationsPolicyInterface $policy`, assigned inside the constructor to `$policy ?? new DeliveryOperationsDefaultPolicy()`.
+  - `public function record(DeliveryChannelEnum|string $channel, DeliveryOperationTypeEnum|string $operationType, DeliveryStatusEnum|string $status, int $attemptNo = 0, DeliveryActorTypeInterface|string|null $actorType = null, ?int $actorId = null, ?string $targetType = null, ?int $targetId = null, ?DateTimeImmutable $scheduledAt = null, ?DateTimeImmutable $completedAt = null, ?string $correlationId = null, ?string $requestId = null, ?string $provider = null, ?string $providerMessageId = null, ?string $errorCode = null, ?string $errorMessage = null, ?array $metadata = null): void`
+  - Fail-open boundary. Catches all `Throwable` errors during validation, metadata size checking (64KB default limit), JSON encoding, or PDO log operations. Best-effort reports to PSR-3 fallback logger and does not crash the caller.
+- **`DeliveryOperationsLoggerInterface`:**
+  - `public function log(DeliveryOperationRecordDTO $dto): void`
+- **`DeliveryOperationsLoggerMysqlRepository`:**
+  - `public function __construct(private readonly PDO $pdo)`
+  - Throws `DeliveryOperationsStorageException` on database write or metadata encoding failure. Message prefixes: 'Database write failed: ' and 'Metadata encoding failed: '.
+- **`DeliveryOperationsPolicyInterface`:**
+  - `public function normalizeActorType(DeliveryActorTypeInterface|string $actorType): string;`
+  - `public function validateMetadataSize(string $json): bool;`
+- **`DeliveryOperationsDefaultPolicy`:**
+  - Uppercases every actor type. It recognizes the documented list ('SYSTEM', 'ADMIN', 'USER', 'SERVICE', 'API_CLIENT', 'ANONYMOUS') but does not reject or remap values outside that list. Max metadata size 64KB.
+- **`DeliveryOperationsFactory`:**
+  - `public static function create(PDO $pdo, ClockInterface $clock, ?LoggerInterface $psrLogger = null, ?DeliveryOperationsPolicyInterface $policy = null): DeliveryOperationsRecorder`
+  - Instantiates logger repository and recorder.
+- **`EventLoggingProvider` / `EventLoggingProviderFactory`:**
+  - Exposes `deliveryOperations(): DeliveryOperationsRecorder`. Uses Factory.
+- **`EventLoggingBindings`:**
+  - Provides DI bindings for `DeliveryOperationsQueryInterface` and `DeliveryOperationsRecorder` using PHP callables.
+- **Event ID Generation:** `Uuid::uuid4()->toString()`
+- **Enum Handling:** Normalizes BackedEnums and UnitEnums to strings dynamically.
+- **Timestamp Assignment:** Done internally.
+- **Sanitization:** Truncates strings based on schema maximum lengths (e.g. 32, 64, 36, 128 characters).
+
+## 5. Schema and Index Audit
+
+**Table:** `maa_event_logging_delivery_operations`
+- `id` BIGINT UNSIGNED AUTO_INCREMENT PRIMARY KEY (No explicit default)
+- `event_id` CHAR(36) NOT NULL UNIQUE (No explicit default). Retained for lookups.
+- `channel` VARCHAR(32) NOT NULL (No explicit default)
+- `operation_type` VARCHAR(64) NOT NULL (No explicit default)
+- `actor_type` VARCHAR(32) NULL (Effective default NULL), `actor_id` BIGINT NULL (Effective default NULL)
+- `target_type` VARCHAR(64) NULL (Effective default NULL), `target_id` BIGINT NULL (Effective default NULL)
+- `status` VARCHAR(32) NOT NULL (No explicit default)
+- `attempt_no` INT UNSIGNED NOT NULL DEFAULT 0 (Explicit default). Relevance: Useful for tracking retries.
+- `scheduled_at`, `completed_at` DATETIME(6) NULL (Effective default NULL). Relevance: Optional lifecycle timestamps.
+- `correlation_id` CHAR(36) NULL (Effective default NULL), `request_id` VARCHAR(64) NULL (Effective default NULL)
+- `provider` VARCHAR(64) NULL (Effective default NULL), `provider_message_id` VARCHAR(128) NULL (Effective default NULL). Relevance: Optional external delivery identifiers.
+- `error_code` VARCHAR(64) NULL (Effective default NULL), `error_message` TEXT NULL (Effective default NULL). Relevance: Best-effort failure details.
+- `metadata` JSON NOT NULL (No explicit default). Relevance: Additional structured data.
+- `occurred_at` DATETIME(6) NOT NULL (No explicit default)
+
+**Indices:**
+- `idx_delivery_ops_time` (occurred_at, id)
+- `idx_delivery_ops_actor_time` (actor_type, actor_id, occurred_at)
+- `idx_delivery_ops_channel_time` (channel, occurred_at)
+- `idx_delivery_ops_type_time` (operation_type, occurred_at)
+- `idx_delivery_ops_status_time` (status, occurred_at)
+- `idx_delivery_ops_target_time` (target_type, target_id, occurred_at)
+- `idx_delivery_ops_correlation_time` (correlation_id, occurred_at)
+- `idx_delivery_ops_request_time` (request_id, occurred_at)
+
+## 6. Existing Pagination-Artifact Search
+
+- Searched entire repository (`src/`, `tests/`, `docs/`) for `AdminQuery`, `PaginatedQuery`, `PdoPaginator`, `QueryCursorDTO`, `QueryPageDTO`, `PaginatedQueryService`, `PaginationQueryDescriptor`.
+- Exact matching paths:
+  - `src/AuthoritativeAudit/Contract/AuthoritativeAuditAdminQueryInterface.php` (Protected Admin Query)
+  - `src/AuthoritativeAudit/Infrastructure/Mysql/AuthoritativeAuditAdminQueryMysqlRepository.php` (Protected Admin Query)
+  - `src/AuditTrail/Contract/AuditTrailAdminQueryInterface.php` (Protected Admin Query)
+  - `src/AuditTrail/Infrastructure/Mysql/AuditTrailAdminQueryMysqlRepository.php` (Protected Admin Query)
+  - `src/BehaviorTrace/Contract/BehaviorTraceAdminQueryInterface.php` (Protected Admin Query)
+  - `src/BehaviorTrace/Infrastructure/Mysql/BehaviorTraceAdminQueryMysqlRepository.php` (Protected Admin Query)
+  - `src/DiagnosticsTelemetry/Contract/DiagnosticsTelemetryAdminQueryInterface.php` (Protected Admin Query)
+  - `src/DiagnosticsTelemetry/Infrastructure/Mysql/DiagnosticsTelemetryAdminQueryMysqlRepository.php` (Protected Admin Query)
+  - `src/SecuritySignals/Contract/SecuritySignalsAdminQueryInterface.php` (Protected Admin Query)
+  - `docs/architecture/ADMIN_QUERY_API_ARCHITECTURE.md` (Architecture)
+  - `docs/architecture/ADMIN_QUERY_AUDIT_TRAIL_POC_BLUEPRINT.md` (Architecture)
+  - `docs/architecture/ADMIN_QUERY_AUTHORITATIVE_AUDIT_REBUILD_BLUEPRINT.md` (Architecture)
+  - `docs/architecture/ADMIN_QUERY_BEHAVIOR_TRACE_REBUILD_BLUEPRINT.md` (Architecture)
+  - `docs/architecture/ADMIN_QUERY_DIAGNOSTICS_TELEMETRY_BLUEPRINT.md` (Architecture)
+  - `docs/architecture/ADMIN_QUERY_SECURITY_SIGNALS_POST_V1_RETIREMENT_DECISION.md` (Architecture)
+  - `docs/architecture/ADMIN_QUERY_SECURITY_SIGNALS_REBUILD_BLUEPRINT.md` (Architecture)
+  - `docs/audits/ADMIN_QUERY_AUTHORITATIVE_AUDIT_AUDIT.md` (Audit)
+  - `docs/audits/ADMIN_QUERY_DELIVERY_OPERATIONS_AUDIT.md` (Audit)
+  - `docs/audits/ADMIN_QUERY_PHASE_1_RUNTIME_COMPATIBILITY_INVENTORY.md` (Audit)
+  - `docs/integration/ADMIN_READ_USAGE.md` (Integration Documentation)
+  - `src/AuditTrail/Contract/AuditTrailAdminQueryInterface.php` (Protected Admin Query)
+  - `src/AuditTrail/DTO/AuditTrailAdminQueryRequestDTO.php` (Protected Admin Query DTO)
+  - `src/AuditTrail/Exception/AuditTrailAdminQueryExecutionException.php` (Exception)
+  - `src/AuditTrail/Exception/AuditTrailAdminQueryInvalidArgumentException.php` (Exception)
+  - `src/AuditTrail/Infrastructure/Mysql/AuditTrailAdminQueryMysqlRepository.php` (Protected Admin Query)
+  - `src/AuditTrail/Infrastructure/Mysql/Pagination/AuditTrailAdminQueryDescriptorBuilder.php` (Internal Builder)
+  - `src/AuditTrail/README.md` (Domain Docs)
+  - `src/AuthoritativeAudit/Contract/AuthoritativeAuditAdminQueryInterface.php` (Protected Admin Query)
+  - `src/AuthoritativeAudit/DTO/AuthoritativeAuditAdminQueryRequestDTO.php` (Protected Admin Query DTO)
+  - `src/AuthoritativeAudit/Exception/AuthoritativeAuditAdminQueryExecutionException.php` (Exception)
+  - `src/AuthoritativeAudit/Exception/AuthoritativeAuditAdminQueryInvalidArgumentException.php` (Exception)
+  - `src/AuthoritativeAudit/Infrastructure/Mysql/AuthoritativeAuditAdminQueryMysqlRepository.php` (Protected Admin Query)
+  - `src/AuthoritativeAudit/Infrastructure/Mysql/Pagination/AuthoritativeAuditAdminQueryDescriptorBuilder.php` (Internal Builder)
+  - `src/AuthoritativeAudit/README.md` (Domain Docs)
+  - `src/BehaviorTrace/Contract/BehaviorTraceAdminQueryInterface.php` (Protected Admin Query)
+  - `src/BehaviorTrace/DTO/BehaviorTraceAdminQueryRequestDTO.php` (Protected Admin Query DTO)
+  - `src/BehaviorTrace/Exception/BehaviorTraceAdminQueryExecutionException.php` (Exception)
+  - `src/BehaviorTrace/Exception/BehaviorTraceAdminQueryInvalidArgumentException.php` (Exception)
+  - `src/BehaviorTrace/Infrastructure/Mysql/BehaviorTraceAdminQueryMysqlRepository.php` (Protected Admin Query)
+  - `src/BehaviorTrace/Infrastructure/Mysql/Pagination/BehaviorTraceAdminQueryDescriptorBuilder.php` (Internal Builder)
+  - `src/BehaviorTrace/README.md` (Domain Docs)
+  - `src/DiagnosticsTelemetry/Contract/DiagnosticsTelemetryAdminQueryInterface.php` (Protected Admin Query)
+  - `src/DiagnosticsTelemetry/DTO/DiagnosticsTelemetryAdminQueryRequestDTO.php` (Protected Admin Query DTO)
+  - `src/DiagnosticsTelemetry/Exception/DiagnosticsTelemetryAdminQueryExecutionException.php` (Exception)
+  - `src/DiagnosticsTelemetry/Exception/DiagnosticsTelemetryAdminQueryInvalidArgumentException.php` (Exception)
+  - `src/DiagnosticsTelemetry/Infrastructure/Mysql/DiagnosticsTelemetryAdminQueryMysqlRepository.php` (Protected Admin Query)
+  - `src/DiagnosticsTelemetry/Infrastructure/Mysql/Pagination/DiagnosticsTelemetryAdminQueryDescriptorBuilder.php` (Internal Builder)
+  - `src/DiagnosticsTelemetry/README.md` (Domain Docs)
+  - `src/SecuritySignals/Contract/SecuritySignalsAdminQueryInterface.php` (Protected Admin Query)
+  - `src/SecuritySignals/DTO/SecuritySignalsAdminQueryRequestDTO.php` (Protected Admin Query DTO)
+  - `src/SecuritySignals/Exception/SecuritySignalsAdminQueryExecutionException.php` (Exception)
+  - `src/SecuritySignals/Exception/SecuritySignalsAdminQueryInvalidArgumentException.php` (Exception)
+  - `src/SecuritySignals/Infrastructure/Mysql/Pagination/SecuritySignalsAdminQueryDescriptorBuilder.php` (Internal Builder)
+  - `src/SecuritySignals/Infrastructure/Mysql/SecuritySignalsAdminQueryMysqlRepository.php` (Protected Admin Query)
+  - `src/SecuritySignals/README.md` (Domain Docs)
+  - `tests/Integration/AuditTrail/AuditTrailAdminQueryMysqlRepositoryTest.php` (Integration Test)
+  - `tests/Integration/AuthoritativeAudit/AuthoritativeAuditAdminQueryMysqlRepositoryTest.php` (Integration Test)
+  - `tests/Integration/BehaviorTrace/BehaviorTraceAdminQueryMysqlRepositoryTest.php` (Integration Test)
+  - `tests/Integration/DiagnosticsTelemetry/DiagnosticsTelemetryAdminQueryMysqlRepositoryTest.php` (Integration Test)
+  - `tests/Integration/SecuritySignals/SecuritySignalsAdminQueryMysqlRepositoryTest.php` (Integration Test)
+  - `tests/Regression/AuditTrail/AuditTrailQueryMysqlRepositoryRegressionTest.php` (Regression Test)
+  - `tests/Regression/BehaviorTrace/BehaviorTraceQueryMysqlRepositoryRegressionTest.php` (Regression Test)
+  - `tests/Regression/DiagnosticsTelemetry/Infrastructure/Mysql/DiagnosticsTelemetryQueryMysqlRepositoryRegressionTest.php` (Regression Test)
+  - `tests/Regression/SecuritySignals/SecuritySignalsQueryMysqlRepositoryRegressionTest.php` (Regression Test)
+  - `tests/Unit/AuditTrail/DTO/AuditTrailAdminQueryRequestDTOTest.php` (Unit Test)
+  - `tests/Unit/AuditTrail/DTO/AuditTrailQueryCursorDTOTest.php` (Unit Test - Post-v1 Artifact)
+  - `tests/Unit/AuditTrail/DTO/AuditTrailQueryPageDTOTest.php` (Unit Test - Post-v1 Artifact)
+  - `tests/Unit/AuditTrail/Exception/AuditTrailAdminQueryExceptionTest.php` (Unit Test)
+  - `tests/Unit/AuditTrail/Infrastructure/Mysql/AuditTrailAdminQueryMysqlRepositoryTest.php` (Unit Test)
+  - `tests/Unit/AuditTrail/Infrastructure/Mysql/Pagination/AuditTrailAdminQueryDescriptorBuilderTest.php` (Unit Test)
+  - `tests/Unit/AuthoritativeAudit/DTO/AuthoritativeAuditAdminQueryRequestDTOTest.php` (Unit Test)
+  - `tests/Unit/AuthoritativeAudit/Exception/AuthoritativeAuditAdminQueryExecutionExceptionTest.php` (Unit Test)
+  - `tests/Unit/AuthoritativeAudit/Exception/AuthoritativeAuditAdminQueryInvalidArgumentExceptionTest.php` (Unit Test)
+  - `tests/Unit/AuthoritativeAudit/Infrastructure/Mysql/Pagination/AuthoritativeAuditAdminQueryDescriptorBuilderTest.php` (Unit Test)
+  - `tests/Unit/BehaviorTrace/DTO/BehaviorTraceAdminQueryRequestDTOTest.php` (Unit Test)
+  - `tests/Unit/BehaviorTrace/Exception/BehaviorTraceAdminQueryExecutionExceptionTest.php` (Unit Test)
+  - `tests/Unit/BehaviorTrace/Exception/BehaviorTraceAdminQueryInvalidArgumentExceptionTest.php` (Unit Test)
+  - `tests/Unit/BehaviorTrace/Infrastructure/Mysql/BehaviorTraceAdminQueryMysqlRepositoryTest.php` (Unit Test)
+  - `tests/Unit/BehaviorTrace/Infrastructure/Mysql/Pagination/BehaviorTraceAdminQueryDescriptorBuilderTest.php` (Unit Test)
+  - `tests/Unit/DiagnosticsTelemetry/DTO/DiagnosticsTelemetryAdminQueryRequestDTOTest.php` (Unit Test)
+  - `tests/Unit/DiagnosticsTelemetry/Exception/DiagnosticsTelemetryAdminQueryExecutionExceptionTest.php` (Unit Test)
+  - `tests/Unit/DiagnosticsTelemetry/Exception/DiagnosticsTelemetryAdminQueryInvalidArgumentExceptionTest.php` (Unit Test)
+  - `tests/Unit/DiagnosticsTelemetry/Infrastructure/Mysql/DiagnosticsTelemetryAdminQueryMysqlRepositoryTest.php` (Unit Test)
+  - `tests/Unit/DiagnosticsTelemetry/Infrastructure/Mysql/Pagination/DiagnosticsTelemetryAdminQueryDescriptorBuilderTest.php` (Unit Test)
+  - `tests/Unit/SecuritySignals/DTO/SecuritySignalsAdminQueryRequestDTOTest.php` (Unit Test)
+  - `tests/Unit/SecuritySignals/Exception/SecuritySignalsAdminQueryExecutionExceptionTest.php` (Unit Test)
+  - `tests/Unit/SecuritySignals/Exception/SecuritySignalsAdminQueryInvalidArgumentExceptionTest.php` (Unit Test)
+  - `tests/Unit/SecuritySignals/Infrastructure/Mysql/Pagination/SecuritySignalsAdminQueryDescriptorBuilderTest.php` (Unit Test)
+  - `tests/Unit/SecuritySignals/Infrastructure/Mysql/SecuritySignalsAdminQueryMysqlRepositoryTest.php` (Unit Test)
+- **Conclusion:** No DeliveryOperations Admin or paginated artifact exists. No superseded post-v1 pagination experiment or partial implementation exists for this domain.
+
+## 7. Current Test Evidence and Gaps
+
+| Behavior | Status |
+| --- | --- |
+| Empty result | PROVEN |
+| Every independent filter | PARTIAL |
+| Combined filters | PARTIAL |
+| Actor type-only and ID-only | NOT PROVEN |
+| Target type-only and ID-only | NOT PROVEN |
+| Inclusive date boundaries | NOT PROVEN |
+| Exact microseconds | NOT PROVEN |
+| Cursor ordering | PARTIAL (Integration test exists but can be skipped if DB unavailable) |
+| Limit normalization | NOT PROVEN |
+| Corrupt/scalar/numeric-array JSON | PARTIAL (only corrupt JSON proven) |
+| Invalid enum-like persisted values | NOT PROVEN (applicable because channel, operationType, and status hydrate as raw strings bypassing fallback, but no explicit test proves unknown passthrough behavior) |
+| Storage failure translation | PARTIAL (PDO failure proven, hydration mapping prefix/throwable NOT fully proven directly) |
+| Caller-owned transaction preservation | NOT PROVEN (applicable but not proven) |
+| Native PDO named-placeholder compatibility | NOT PROVEN |
+| Custom policy hydration | NOT APPLICABLE (query repository has no policy dependency) |
+
+## 8. Host-Usage Search
+
+- Repositories attempted: None (0 repositories searched).
+- Result: Host search was unperformed. Host usage is preserved as an unresolved verification gap.
+
+## 9. Blueprint Decision Matrix
+
+| Question | Status |
+| --- | --- |
+| Admin Query public interface name | EVIDENCE DETERMINES |
+| Request DTO fields | OWNER DECISION REQUIRED |
+| Page-result DTO fields and serialization order | EVIDENCE DETERMINES |
+| Actor type and actor ID independence | EVIDENCE DETERMINES |
+| Target type and target ID independence | EVIDENCE DETERMINES |
+| Approved Admin filters | OWNER DECISION REQUIRED |
+| Is `eventId` filterable? | OWNER DECISION REQUIRED |
+| Provider/attempt filters included? | OWNER DECISION REQUIRED |
+| Scheduled/completed timestamps as filters vs. output | OWNER DECISION REQUIRED |
+| Allowed sort fields | OWNER DECISION REQUIRED |
+| Selected column list | EVIDENCE DETERMINES |
+| Mapper and policy reuse | OWNER DECISION REQUIRED |
+| Pagination ownership by `maatify/persistence` | EVIDENCE DETERMINES |
+| Exception translation | EVIDENCE DETERMINES |
+| Strict MySQL test matrix | EVIDENCE DETERMINES |
+| Schema-change requirement | OWNER DECISION REQUIRED (Current evidence does not justify schema change, but remains unresolved until filters/sorts approved) |
+
+## 10. Recommended Blueprint Scope
+
+**AUDIT RECOMMENDATION — NOT OWNER APPROVAL**
+
+The recommended scope for the upcoming Blueprint is to define `DeliveryOperationsAdminQueryInterface`, `DeliveryOperationsAdminQueryRequestDTO`, `DeliveryOperationsAdminPageResultDTO`, and a `DeliveryOperationsAdminQueryMysqlRepository`. The Repository must use `PdoPaginator` from `maatify/persistence` to provide offset-based pagination while preserving the domain exception boundary. The exact allowed filters and sort mechanisms require Owner approval. No changes should be made to the schema or primitive write/query logic.
diff --git a/docs/audits/DOCUMENTATION_INVENTORY.md b/docs/audits/DOCUMENTATION_INVENTORY.md
index c71ba20..6709127 100644
--- a/docs/audits/DOCUMENTATION_INVENTORY.md
+++ b/docs/audits/DOCUMENTATION_INVENTORY.md
@@ -47,6 +47,7 @@
 | `./docs/audits/PHASE_5_VALIDATION_GATE.md` | Historical Audit Docs | Historical | Past audit record (not active) | Historical wording: mentions generic logger/recorder/repo, framework bindings (Slim, PHP-DI, etc) |
 | `./docs/audits/PHASE_J_MAATIFY_CORE_CONTRACTS_ALIGNMENT_AUDIT.md` | Historical Audit Docs | Historical | Past audit record (not active) | Historical wording: mentions generic logger/recorder/repo, RuntimeException as storage exception, Common ClockInterface, framework bindings (Slim, PHP-DI, etc) |
 | `./docs/audits/POST_PHASE_J_RELEASE_READINESS_AUDIT.md` | Historical Audit Docs | Historical | Past audit record (not active) | Historical wording: mentions SQLite support, RuntimeException as storage exception, Common ClockInterface, framework bindings (Slim, PHP-DI, etc) |
+| `./docs/audits/ADMIN_QUERY_DELIVERY_OPERATIONS_AUDIT.md` | Active Audit Docs | Active | Audit and baseline for DeliveryOperations Admin Query | Active evidence document. Not an architecture authority. Not an implemented Runtime contract. |
 | `./docs/audits/STANDALONE_WORDING_CLARIFICATION_AUDIT.md` | Historical Audit Docs | Historical | Past audit record (not active) | Historical wording: mentions zero-dependency standalone, self-contained, dependency-free |
 | `./docs/audits/ADMIN_QUERY_AUTHORITATIVE_AUDIT_AUDIT.md` | Historical Audit Docs | Historical | Historical audit for AuthoritativeAudit remediation | Historical/resolved. Superseded by approved Blueprint. |
 | `./docs/audits/WHOLE_LIBRARY_GAP_AUDIT.md` | Historical Audit Docs | Historical | Past audit record (not active) | Historical wording: mentions SQLite support, RuntimeException as storage exception, Common ClockInterface, framework bindings (Slim, PHP-DI, etc), host app namespaces (App, Athar, EP4N) |