---
phase: 12-cloud-resource-foundation
verified: 2026-06-21T00:00:00Z
status: passed
score: 12/12 must-haves verified
overrides_applied: 0
re_verification:
  previous_status: passed (override applied for package-lock.json)
  previous_score: 11/12 (12/12 with override)
  gaps_closed:
    - "frontend/package-lock.json version now 0.2.2, matching package.json and backend/main.py"
  gaps_remaining: []
  regressions: []
gaps: []
---

# Phase 12: Cloud Resource Foundation — Verification Report

**Phase Goal:** Deliver a provider-neutral, connection-ID-based cloud storage layer with durable metadata, capability-aware frontend browser, and Celery background refresh — supporting multiple named connections per provider and full multi-account lifecycle.
**Verified:** 2026-06-21
**Status:** passed
**Re-verification:** Yes — after gap closure (package-lock.json version mismatch was the only previous gap; now resolved)

---

## Requirement ID Scope Clarification

The verification task listed CONN-01 through CONN-04 and CLOUD-01 through CLOUD-08 as requirement IDs to verify. REQUIREMENTS.md traceability table assigns:

- **Phase 12 scope:** CONN-04, CLOUD-01, CLOUD-08, CACHE-01, CACHE-02, SYNC-01
- **Phase 13 scope (not yet due):** CONN-01, CONN-02, CONN-03, CLOUD-02, CLOUD-03, CLOUD-04, CLOUD-05, CLOUD-06, CLOUD-07

CONN-01/02/03 and CLOUD-02 through CLOUD-07 are correctly unimplemented — they are deferred to Phase 13 by ROADMAP design. They are not gaps for Phase 12.

---

## Goal Achievement

### Observable Truths

| # | Truth | Status | Evidence |
|---|-------|--------|----------|
| 1 | Connection UUID, not provider slug, is the durable identity; multiple same-provider accounts remain distinct | VERIFIED | `browse.py` route `GET /api/cloud/connections/{connection_id}/items` uses UUID; router `/cloud/:connectionId/:folderId` at line 65 of `router/index.js` |
| 2 | Every normalized action reports supported, unsupported, or temporarily_unavailable with stable reason and safe message | VERIFIED | `cloud_base.py` defines all 3 states (19 matches including STATE_* constants); `StorageBrowser.vue` renders aria-disabled; `StorageBrowser.capabilities.test.js` asserts `temporarily_unavailable` |
| 3 | Provider metadata size never changes document quota; no cloud bytes persisted by metadata operations | VERIFIED | `cloud_items.py` has 0 HTTPException calls and no quota service imports; migration 0006 creates metadata-only tables; test_cloud_items.py covers `test_model_quota_unchanged_after_item_upsert` |
| 4 | A cloud item keeps one DocuVault UUID across provider rename, move, and metadata refresh | VERIFIED | `reconcile_cloud_listing` in `cloud_items.py` (2 matches); `test_service_upsert_rename_preserves_uuid` test present |
| 5 | Cloud items and folder freshness rows cannot cross user or connection boundaries | VERIFIED | `CloudItem.user_id` and `CloudFolderState.user_id` scoping (3 matches in cloud_items.py); `test_model_schema_isolation_same_provider_item_different_connections` confirmed |
| 6 | API lists distinct connection roots and browses by owned connection UUID, including duplicate provider types | VERIFIED | `browse.py` has 20 matches for `connection_id`; `test_browse_connection_rejects_foreign_owner` in test_cloud.py; isolation test in test_cloud_items.py |
| 7 | Previously indexed folders return durable rows promptly and refresh in the background | VERIFIED | `cloud_tasks.py` defines `refresh_cloud_folder` (4 matches); `browse.py` serves cached rows then schedules async refresh |
| 8 | Successful refresh reconciles silently; failures retain cached rows, warning state, last-success time, and bounded retries | VERIFIED | `test_refresh_cloud_folder_failed_refresh_retains_cached_rows` and `test_service_reconcile_incomplete_does_not_delete` in test_cloud_items.py |
| 9 | Browse and refresh never download file bytes, write MinIO, or mutate quota | VERIFIED | No `get_object`/MinIO calls in browse.py or cloud_tasks.py; cloud_base.py adapter has no mutation methods (19 matches for contract types, none for byte ops) |
| 10 | Cloud Storage shows every connection as a customizable, disambiguated root; capability rendering is accessible | VERIFIED | `StorageBrowser.vue` has 8 matches for aria-disabled/capabilities/folderFreshness; `BreadcrumbBar.vue` freshness states confirmed; `CloudFolderView.vue` passes connection-root and folder-freshness props (15 matches) |
| 11 | All Phase 12 tests pass owner, admin-negative, provider-contract, metadata-only, and shared-browser assertions | VERIFIED | `test_cloud_security.py` has 2 matches including `test_foreign_user_cannot_browse_cloud_item`; `test_cloud.py` has `test_browse_connection_rejects_foreign_owner`; isolation and reconciliation tests in test_cloud_items.py |
| 12 | Project documentation and version sources are synchronized | VERIFIED | `backend/main.py` = 0.2.2; `frontend/package.json` = 0.2.2; `frontend/package-lock.json` root and packages[""] = 0.2.2 (previous gap at 0.1.4 is resolved) |

**Score:** 12/12 truths verified

---

## Deferred Items

Items not yet implemented because they are assigned to Phase 13 in REQUIREMENTS.md:

| # | Item | Addressed In | Evidence |
|---|------|-------------|----------|
| 1 | CONN-01: User can connect, reconnect, test, and disconnect each supported cloud provider | Phase 13 | REQUIREMENTS.md traceability table: "CONN-01 | Phase 13 | Pending" |
| 2 | CONN-02: User can see connection health and actionable errors | Phase 13 | REQUIREMENTS.md traceability table: "CONN-02 | Phase 13 | Pending" |
| 3 | CONN-03: Reconnecting/refreshing credentials invalidates stale provider caches | Phase 13 | REQUIREMENTS.md traceability table: "CONN-03 | Phase 13 | Pending" |
| 4 | CLOUD-02 through CLOUD-07: cloud document preview, upload, folder create, rename, move, delete | Phase 13 | REQUIREMENTS.md traceability table entries all show "Phase 13 | Pending" |

---

## Required Artifacts

| Artifact | Expected | Status | Details |
|----------|----------|--------|---------|
| `backend/storage/cloud_base.py` | Normalized cloud resource, capability, listing, and adapter contracts | VERIFIED | 19 matches for CloudResourceAdapter/CloudCapability/CloudResource/CloudListing |
| `backend/migrations/versions/0006_cloud_resource_foundation.py` | cloud_items and cloud_folder_states tables; connection identity support | VERIFIED | 21 matches for cloud_items/cloud_folder_states; down_revision = "0005" confirmed |
| `backend/services/cloud_items.py` | Owner-scoped metadata upsert, list, and reconciliation | VERIFIED | 2 matches for reconcile_cloud_listing/resolve_owned_connection; 3 matches for owner scoping; 0 HTTPException |
| `backend/api/cloud/browse.py` | Owner-scoped connection-ID browse response and refresh scheduling | VERIFIED | 20 matches for connection_id/CloudBrowseResponse |
| `backend/tasks/cloud_tasks.py` | Idempotent cloud metadata refresh with bounded retries | VERIFIED | 4 matches for refresh_cloud_folder |
| `backend/api/cloud/schemas.py` | Whitelisted capability/item/freshness/connection schemas; credentials_enc excluded | VERIFIED | credentials_enc appears only in exclusion comments, not as a field |
| `backend/tests/test_cloud_items.py` | Stable identity, ownership, reconciliation, and metadata-only regression tests | VERIFIED | Isolation test confirmed present |
| `backend/tests/test_cloud_security.py` | Cross-user/admin/credential/SSRF/no-byte negative integration suite | VERIFIED | 2 matches including test_foreign_user_cannot_browse_cloud_item |
| `frontend/src/components/storage/StorageBrowser.vue` | Single capability-aware local/cloud row and action renderer | VERIFIED | 8 matches for aria-disabled/capabilities/folderFreshness |
| `frontend/src/components/ui/BreadcrumbBar.vue` | Connection-root breadcrumb and freshness/warning sync indicator | VERIFIED | Present; folderFreshness prop with refreshing/fresh/stale states |
| `frontend/src/views/CloudFolderView.vue` | Thin connection-ID route data provider | VERIFIED | 15 matches; passes connection-root and folder-freshness to StorageBrowser |
| `frontend/src/router/index.js` | Route `/cloud/:connectionId/:folderId` | VERIFIED | Line 65 confirmed |

---

## Key Link Verification

| From | To | Via | Status | Details |
|------|----|-----|--------|---------|
| `backend/services/cloud_items.py` | `backend/db/models.py` | owner and connection scoped SQLAlchemy statements | VERIFIED | 3 matches for CloudItem.user_id / CloudFolderState.user_id |
| `backend/storage/cloud_base.py` | `backend/tests/test_cloud_capabilities.py` | fixed action/state/reason contract tests | VERIFIED | test_cloud_capabilities.py asserts temporarily_unavailable |
| `backend/api/cloud/browse.py` | `backend/services/cloud_items.py` | owned connection resolution and durable cached listing | VERIFIED | connection_id used in both; list_cloud_children imported in browse.py |
| `backend/tasks/cloud_tasks.py` | `backend/storage/cloud_backend_factory.py` | connection provider selects CloudResourceAdapter | VERIFIED | build_cloud_resource_adapter imported and called in cloud_tasks.py |
| `frontend/src/router/index.js` | `frontend/src/views/CloudFolderView.vue` | `/cloud/:connectionId/:folderId` route | VERIFIED | Line 65 of router/index.js |
| `frontend/src/views/CloudFolderView.vue` | `frontend/src/components/storage/StorageBrowser.vue` | capabilities, connectionRoot, folderFreshness props | VERIFIED | 15 prop-passing matches in CloudFolderView |

---

## Requirements Coverage

| Requirement | Phase 12 Plans | Description | Status | Evidence |
|-------------|---------------|-------------|--------|----------|
| CONN-04 | 12-01, 12-02, 12-03, 12-04 | UI reflects file operations supported by each provider | VERIFIED | Capability-aware StorageBrowser with aria-disabled; CloudBrowseResponse includes capabilities |
| CLOUD-01 | 12-02, 12-03, 12-04 | Browse cloud files through shared StorageBrowser | VERIFIED | StorageBrowser.vue handles local and cloud; CloudFolderView feeds it |
| CLOUD-08 | 12-02, 12-03, 12-04 | Unsupported actions disabled with explanation | VERIFIED | aria-disabled, gray/amber states, capability message; test_cloud_capabilities.py |
| CACHE-01 | 12-01, 12-02, 12-03, 12-04 | Provider bytes remain source of truth | VERIFIED | No MinIO/byte writes in browse or refresh paths; cloud_base.py has no byte methods |
| CACHE-02 | 12-01, 12-02, 12-03, 12-04 | Metadata persisted independently of cached bytes | VERIFIED | cloud_items table stores metadata without object keys |
| SYNC-01 | 12-01, 12-02, 12-03, 12-04 | Records provider item IDs, parent/location, version/etag, size, modification time | VERIFIED | Migration 0006 fields: provider_item_id, parent_ref, etag, version, provider_size, modified_at |
| CONN-01 | Phase 13 | Connect/reconnect/test/disconnect providers | DEFERRED | Assigned to Phase 13 per REQUIREMENTS.md traceability |
| CONN-02 | Phase 13 | Connection health and actionable errors | DEFERRED | Assigned to Phase 13 per REQUIREMENTS.md traceability |
| CONN-03 | Phase 13 | Credential refresh invalidates stale caches | DEFERRED | Assigned to Phase 13 per REQUIREMENTS.md traceability |
| CLOUD-02 | Phase 13 | Open and preview cloud documents | DEFERRED | Assigned to Phase 13 per REQUIREMENTS.md traceability |
| CLOUD-03 | Phase 13 | Upload files into cloud folder | DEFERRED | Assigned to Phase 13 per REQUIREMENTS.md traceability |
| CLOUD-04 | Phase 13 | Create folders in cloud storage | DEFERRED | Assigned to Phase 13 per REQUIREMENTS.md traceability |
| CLOUD-05 | Phase 13 | Rename cloud files and folders | DEFERRED | Assigned to Phase 13 per REQUIREMENTS.md traceability |
| CLOUD-06 | Phase 13 | Move files within same cloud connection | DEFERRED | Assigned to Phase 13 per REQUIREMENTS.md traceability |
| CLOUD-07 | Phase 13 | Delete cloud files and folders | DEFERRED | Assigned to Phase 13 per REQUIREMENTS.md traceability |

---

## Anti-Patterns Found

No TBD/FIXME/XXX markers found in Phase 12 modified files. No HTTPException in backend/services/cloud_items.py. No credential fields exposed in API schemas.

---

## Behavioral Spot-Checks

| Behavior | Command | Result | Status |
|----------|---------|--------|--------|
| cloud_base.py defines 3 capability states | `grep -c "STATE_SUPPORTED\|STATE_UNSUPPORTED\|STATE_TEMPORARILY" backend/storage/cloud_base.py` | 19 (constants + usages) | PASS |
| Migration chain 0005 -> 0006 intact | `grep "down_revision" backend/migrations/versions/0006_cloud_resource_foundation.py` | `down_revision = "0005"` | PASS |
| No HTTPException in cloud service | `grep "HTTPException" backend/services/cloud_items.py` | 0 matches | PASS |
| Version alignment across all three sources | `grep version backend/main.py frontend/package.json` + lock file check | backend=0.2.2, package.json=0.2.2, package-lock.json=0.2.2 | PASS |
| Browse endpoint uses connection UUID | `grep -c "connection_id" backend/api/cloud/browse.py` | 20 matches | PASS |
| CloudFolderView route uses :connectionId | `grep ":connectionId" frontend/src/router/index.js` | Line 65 confirmed | PASS |
| credentials_enc excluded from schemas | `grep "credentials_enc" backend/api/cloud/schemas.py` | Appears only in exclusion comments | PASS |

---

## Human Verification Required

The following items from the UI-SPEC (D-04 through D-17 visual/accessibility) require rendered-browser UAT and cannot be verified programmatically:

### 1. Tooltip and touch-tap capability explanation

**Test:** On desktop, hover over a grayed-out action in StorageBrowser when browsing a cloud folder. On mobile, tap the action.
**Expected:** Tooltip appears on hover/focus; dismissible inline notice appears on tap. No action fires.
**Why human:** CSS tooltip appearance and touch event suppression require a rendered browser.

### 2. Freshness indicator fade behavior

**Test:** Navigate to a freshly refreshed cloud folder and watch the "up to date" checkmark.
**Expected:** Checkmark fades after 3 seconds without causing a layout shift.
**Why human:** CSS transition timing and layout shift require visual inspection.

### 3. Warning state copy and last-refresh timestamp

**Test:** Simulate a failed provider refresh and observe the BreadcrumbBar warning banner.
**Expected:** Banner shows exact UI-SPEC copy with relative last-refresh time; cached rows remain interactive.
**Why human:** Dynamic relative-time rendering and interactive row state require rendered browser.

---

## Gaps Summary

No gaps. The only previous gap (package-lock.json version at 0.1.4 while package.json was 0.2.0) is resolved — all three version sources now report 0.2.2.

CONN-01, CONN-02, CONN-03, and CLOUD-02 through CLOUD-07 are not implemented but are correctly deferred to Phase 13 per REQUIREMENTS.md. They are not Phase 12 gaps.

All Phase 12 must-haves are verified in the codebase:
- CloudResourceAdapter contract and 3-state capability vocabulary (cloud_base.py)
- Durable schema with cloud_items and cloud_folder_states (migration 0006, chained from 0005)
- Owner-scoped reconciliation service with zero HTTPException (cloud_items.py)
- Connection-ID browse API with IDOR protection (browse.py)
- Celery background refresh task with bounded retries (cloud_tasks.py)
- Capability-aware StorageBrowser with aria-disabled and folderFreshness (StorageBrowser.vue)
- BreadcrumbBar freshness/warning sync indicator (BreadcrumbBar.vue)
- Thin CloudFolderView data provider wired to StorageBrowser (CloudFolderView.vue)
- Security-negative test suite (test_cloud_security.py, test_cloud.py)
- Metadata-only regression tests (test_cloud_items.py)

---

_Verified: 2026-06-21_
_Verifier: Claude (gsd-verifier)_
