chore(per-instance-hook-scoping): archive verified+synced change

Move to openspec/changes/archive/2026-07-09-per-instance-hook-scoping/
(R100 renames preserved). 9 artifacts. Canonical openspec/specs/
service-instance-scoping/ remains. Resolves multi-instance wrong-data bug
(hooks now scope by instance.id; instance switcher re-scopes).
Carry-overs: fetchBackupDashboard untouched (design decision 5); subquery
scoping for runs/alerts (schema asymmetry).

backend/src/media_library_viewer_api/routers/backups.py

@@ -183,7 +183,10 @@ def get_backup_alerts(
     store: SettingsStore = Depends(get_settings_store),
 ) -> list[BackupAlertResponse]:
     alerts = store.list_backup_alerts(
-        job_id=job_id, acknowledged=acknowledged, severity=severity, service_id=service_id,
+        job_id=job_id,
+        acknowledged=acknowledged,
+        severity=severity,
+        service_id=service_id,
     )
     return [BackupAlertResponse(**alert) for alert in alerts]
 

backend/tests/test_backups.py

@@ -76,12 +76,8 @@ class TestBackupServiceScoping:
         job_b = store.upsert_backup_job({"name": "job-b", "service_id": "svc-b"})
         store.create_backup_run({"job_id": job_a["id"], "started_at": 1700000000, "status": "success"})
         store.create_backup_run({"job_id": job_b["id"], "started_at": 1700000000, "status": "success"})
-        store.create_backup_alert(
-            {"job_id": job_a["id"], "alert_type": "test", "severity": "warning"}
-        )
-        store.create_backup_alert(
-            {"job_id": job_b["id"], "alert_type": "test", "severity": "warning"}
-        )
+        store.create_backup_alert({"job_id": job_a["id"], "alert_type": "test", "severity": "warning"})
+        store.create_backup_alert({"job_id": job_b["id"], "alert_type": "test", "severity": "warning"})
         assert len(store.list_backup_alerts(service_id="svc-a")) == 1
         assert len(store.list_backup_alerts(service_id="svc-b")) == 1
 

frontend/src/api/backups.ts

@@ -6,7 +6,9 @@ import type {
 	BackupRun,
 } from "../types/backups";
 
-export async function fetchBackupJobs(serviceId?: string): Promise<BackupJob[]> {
+export async function fetchBackupJobs(
+	serviceId?: string,
+): Promise<BackupJob[]> {
 	return get<BackupJob[]>(
 		"/api/backups/jobs",
 		serviceId ? { service_id: serviceId } : undefined,

frontend/src/hooks/__tests__/useBackups.test.ts

@@ -3,7 +3,10 @@ import { renderHook } from "@testing-library/react";
 import { QueryClient, QueryClientProvider } from "@tanstack/react-query";
 import { createElement, type ReactNode } from "react";
 import { useBackupJobs, useBackupRuns, useBackupAlerts } from "../useBackups";
-import { useAlertmanagerAlerts, usePrometheusStatus } from "../useObservability";
+import {
+	useAlertmanagerAlerts,
+	usePrometheusStatus,
+} from "../useObservability";
 
 vi.mock("../../api/client", () => ({
 	fetchAlertmanagerAlerts: vi.fn(),
@@ -68,10 +71,9 @@ describe("per-instance hook queryKey isolation", () => {
 
 	it("useAlertmanagerAlerts includes serviceId in queryKey", () => {
 		const wrapper = createWrapper();
-		const { result: a } = renderHook(
-			() => useAlertmanagerAlerts("svc-a"),
-			{ wrapper },
-		);
+		const { result: a } = renderHook(() => useAlertmanagerAlerts("svc-a"), {
+			wrapper,
+		});
 		expect(a).toBeDefined();
 	});
 

frontend/src/hooks/useBackups.ts

@@ -1,59 +1,75 @@
 import { useMutation, useQuery, useQueryClient } from "@tanstack/react-query";
 import {
-    acknowledgeBackupAlert,
-    fetchBackupAlerts,
-    fetchBackupDashboard,
-    fetchBackupJob,
-    fetchBackupJobs,
-    fetchBackupRuns,
+	acknowledgeBackupAlert,
+	fetchBackupAlerts,
+	fetchBackupDashboard,
+	fetchBackupJob,
+	fetchBackupJobs,
+	fetchBackupRuns,
 } from "../api/backups";
 
 export function useBackupJobs(serviceId?: string) {
-    return useQuery({
-        queryKey: ["backups", "jobs", serviceId ?? ""],
-        queryFn: () => fetchBackupJobs(serviceId),
-        refetchInterval: 30_000,
-    });
+	return useQuery({
+		queryKey: ["backups", "jobs", serviceId ?? ""],
+		queryFn: () => fetchBackupJobs(serviceId),
+		refetchInterval: 30_000,
+	});
 }
 
 export function useBackupJob(jobId: string) {
-    return useQuery({
-        queryKey: ["backups", "jobs", jobId],
-        queryFn: () => fetchBackupJob(jobId),
-        enabled: !!jobId,
-    });
+	return useQuery({
+		queryKey: ["backups", "jobs", jobId],
+		queryFn: () => fetchBackupJob(jobId),
+		enabled: !!jobId,
+	});
 }
 
-export function useBackupRuns(jobId?: string, status?: string, serviceId?: string) {
-    return useQuery({
-        queryKey: ["backups", "runs", jobId, status, serviceId ?? ""],
-        queryFn: () => fetchBackupRuns(jobId, status, serviceId),
-        refetchInterval: 15_000,
-    });
+export function useBackupRuns(
+	jobId?: string,
+	status?: string,
+	serviceId?: string,
+) {
+	return useQuery({
+		queryKey: ["backups", "runs", jobId, status, serviceId ?? ""],
+		queryFn: () => fetchBackupRuns(jobId, status, serviceId),
+		refetchInterval: 15_000,
+	});
 }
 
-export function useBackupAlerts(jobId?: string, acknowledged?: boolean, severity?: string, serviceId?: string) {
-    return useQuery({
-        queryKey: ["backups", "alerts", jobId, acknowledged, severity, serviceId ?? ""],
-        queryFn: () => fetchBackupAlerts(jobId, acknowledged, severity, serviceId),
-        refetchInterval: 30_000,
-    });
+export function useBackupAlerts(
+	jobId?: string,
+	acknowledged?: boolean,
+	severity?: string,
+	serviceId?: string,
+) {
+	return useQuery({
+		queryKey: [
+			"backups",
+			"alerts",
+			jobId,
+			acknowledged,
+			severity,
+			serviceId ?? "",
+		],
+		queryFn: () => fetchBackupAlerts(jobId, acknowledged, severity, serviceId),
+		refetchInterval: 30_000,
+	});
 }
 
 export function useAcknowledgeAlert() {
-    const queryClient = useQueryClient();
-    return useMutation({
-        mutationFn: acknowledgeBackupAlert,
-        onSuccess: () => {
-            queryClient.invalidateQueries({ queryKey: ["backups", "alerts"] });
-        },
-    });
+	const queryClient = useQueryClient();
+	return useMutation({
+		mutationFn: acknowledgeBackupAlert,
+		onSuccess: () => {
+			queryClient.invalidateQueries({ queryKey: ["backups", "alerts"] });
+		},
+	});
 }
 
 export function useBackupDashboard() {
-    return useQuery({
-        queryKey: ["dashboard", "backups"],
-        queryFn: fetchBackupDashboard,
-        refetchInterval: 30_000,
-    });
+	return useQuery({
+		queryKey: ["dashboard", "backups"],
+		queryFn: fetchBackupDashboard,
+		refetchInterval: 30_000,
+	});
 }

frontend/src/pages/service-tabs/AlertsTab.tsx

@@ -110,7 +110,9 @@ export function AlertsTab({ instance }: { instance: ServiceInstance }) {
 		isLoading: alertsLoading,
 		error: alertsError,
 	} = useAlertmanagerAlerts(instance.id);
-	const { data: status, isLoading: statusLoading } = useAlertmanagerStatus(instance.id);
+	const { data: status, isLoading: statusLoading } = useAlertmanagerStatus(
+		instance.id,
+	);
 
 	const statusDetail = status?.up
 		? status.version

frontend/src/pages/service-tabs/__tests__/AlertsTab.test.tsx

@@ -58,12 +58,12 @@ vi.mock("../../../hooks/useObservability", () => ({
 describe("AlertsTab", () => {
 	it("passes instance.id to scoped hooks", () => {
 		render(<AlertsTab instance={instance} />);
-		expect(vi.mocked(useObservability.useAlertmanagerAlerts)).toHaveBeenCalledWith(
-			"am-1",
-		);
-		expect(vi.mocked(useObservability.useAlertmanagerStatus)).toHaveBeenCalledWith(
-			"am-1",
-		);
+		expect(
+			vi.mocked(useObservability.useAlertmanagerAlerts),
+		).toHaveBeenCalledWith("am-1");
+		expect(
+			vi.mocked(useObservability.useAlertmanagerStatus),
+		).toHaveBeenCalledWith("am-1");
 	});
 
 	it("renders the alert count and alert names", () => {

openspec/changes/archive/2026-07-09-per-instance-hook-scoping/archive-report.md

@@ -0,0 +1,246 @@
+# Archive Report — `per-instance-hook-scoping`
+
+> Phase: **archive** · Change: `per-instance-hook-scoping` · Repo: `/home/user/manage`
+> Mode: file-backed (`artifactStore: openspec`). No source-code edits; only OpenSpec artifacts
+> were touched. **Not committed** — the parent/orchestrator owns the archive commit. No push, no `gh`.
+
+**Status: ARCHIVED.** All eight lifecycle phases are complete (proposal → spec → design → tasks →
+apply → verify → sync → **archive**). Every archive precondition is verified PASS (see §2). The
+canonical `openspec/specs/service-instance-scoping/spec.md` (a **new** domain created by
+`sdd-sync` — pure `## ADDED Requirements`, 21 requirements PI-101 … PI-121) remains in place as the
+durable end-state spec and is **not** moved (archive never moves canonical specs). The change folder
+was moved to `openspec/changes/archive/2026-07-09-per-instance-hook-scoping/` via `git mv` to
+preserve history.
+
+**This change is a correctness fix:** it resolves the multi-instance wrong-data bug where service
+tabs (Alerts/Metrics/Jobs) showed data for whichever instance resolved first *globally* instead of
+the instance whose page the operator was viewing (see §7.1).
+
+---
+
+## 0. Archive disposition
+
+- **Disposition: `archived`.** The parent explicitly requested the `git mv` and owns the commit, so
+  the move is executed here and left staged for the parent's explicit-path commit.
+- **Archive convention:** OpenSpec SDD archive contract for `openspec` mode — completed file-backed
+  sync → write the in-folder archive report → move the change folder to
+  `openspec/changes/archive/YYYY-MM-DD-{change}/`. No standalone manifest/index exists under
+  `openspec/` (only `config.yaml`, `changes/`, `specs/`), so the folder move **is** the archive
+  mechanism. No `rules.archive` override exists in `openspec/config.yaml` (verified: no `archive`
+  key under `rules`).
+- **Target archived path:** `openspec/changes/archive/2026-07-09-per-instance-hook-scoping/`
+- **Archive date:** `2026-07-09` (ISO).
+- **Canonical spec left in place (not moved):** `openspec/specs/service-instance-scoping/spec.md` —
+  21 requirements (PI-101 … PI-121). Verified present and untouched after the move (sha256
+  `d5176362bc0f3c4adbbad44ee5c0b52699e7f71d69af661ea5be1e886a5a0709`, unchanged pre/post move).
+- **The other canonical domains are also left untouched:** `openspec/specs/web-ui/spec.md`,
+  `openspec/specs/prometheus-charting/spec.md`, `openspec/specs/service-storage/spec.md`,
+  `openspec/specs/service-credential-testing/spec.md`.
+- **Audit-trail integrity:** the change folder was moved as a whole, including the legacy flat
+  `spec.md`, the per-domain delta `specs/service-instance-scoping/spec.md`, `apply-progress.md`,
+  `verify-report.md`, and `sync-report.md`, which travel with the record. Nothing was silently
+  deleted or rewritten.
+
+## 1. Native `sdd-status` read & discrepancy statement
+
+The native `gentle-pi.sdd-status` engine supplied by the parent reports **stale, non-actionable
+state for this archive**: `state: blocked`, `dependencies.sync: blocked`,
+`dependencies.archive: blocked`, `nextRecommended: "sdd-verify"` (it is one phase behind reality).
+The reported `blockedReasons` are carried over from an earlier point in the lifecycle and do **not**
+reflect the current filesystem: the engine still believes domain specs are missing and the legacy
+flat spec is present without a delta, when in fact the domain delta (`specs/service-instance-scoping/`)
+and the canonical domain both exist and are synced.
+
+**Discrepancy with the parent's authoritative confirmed state — RESOLVED in favor of the parent.**
+The parent physically verified (and this executor re-confirmed directly against the filesystem in
+§2) that all 17 tasks are ticked, `apply-progress.md` is present and records the work, the verify
+report confirms functional completion (21/21 PASS), and the sync report confirms a SYNCED canonical
+domain. Per the archive contract's non-authoritative-store carve-out guidance and the parent's
+explicit instruction ("native sdd-status may report stale blockers — DISREGARD; parent verified.
+PROCEED"), the stale `sync: blocked` / `archive: blocked` labels are **disregarded** and the archive
+**proceeds**.
+
+Direct filesystem re-validation (§2) is the source of truth for this report.
+
+## 2. Archive preconditions (validated directly against the filesystem)
+
+| Precondition | Evidence | Result |
+|---|---|---|
+| Verify report present | `verify-report.md` | ✓ verdict **PASS (functionally)** — 21/21 requirements PASS |
+| Verify clearly passing — no unresolved `FAIL`/`BLOCKED`/`CRITICAL` | verify's single CRITICAL was a **reconcilable archive-only** item (17 unchecked boxes + missing `apply-progress.md`), now **resolved**; no unresolved critical verification issue remains | ✓ |
+| Sync report present & successful | `sync-report.md` → **Status: SYNCED** | ✓ |
+| Canonical spec exists (sync target, created) | `openspec/specs/service-instance-scoping/spec.md` (21 requirements, PI-101 … PI-121) | ✓ |
+| Change-side domain delta exists | `specs/service-instance-scoping/spec.md` (`## ADDED Requirements`) | ✓ |
+| Delta op-class = pure additive (ADDED; new domain; no MODIFIED/REMOVED) | ADDED=21, MODIFIED=0, REMOVED=0, RENAMED=0 | ✓ |
+| Requirement-ID parity (flat ↔ delta ↔ canonical) | 21 == 21 == 21; identical IDs PI-101 … PI-121 | ✓ |
+| proposal / design / tasks artifacts present | all populated | ✓ |
+| **Final Task Completion Gate — zero unchecked `- [ ]`** | `grep -cE '^\s*- \[ \]' tasks.md` → **0**; `grep -cE '^\s*- \[x\]'` → **17** | ✓ |
+| `apply-progress.md` present & records the work | present; status "complete — all 17 tasks done, all gates green, verified"; single slice documented | ✓ |
+| No active same-domain (`service-instance-scoping`) collision | new domain; `sameDomainActiveChanges: []`, `collisions: []` (per sync-report §5) | ✓ |
+
+**Stale-checkbox reconciliation note.** At verify time, all 17 implementation/verification checkboxes
+were unchecked and `apply-progress.md` did not exist (verify BLOCKER-1). That condition was
+reconciled **before** archive: `apply-progress.md` was authored documenting the single landed slice
+(commit `3bc7ce5`, +268/−73, 12 files) and the gate results, and all 17 boxes are now ticked.
+`apply-progress.md` plus the verify report prove every previously-unchecked task complete. No
+archive-time mechanical checkbox repair was needed — the gate now passes on the persisted `tasks.md`
+as-is (0 unchecked). No partial-archive approval applies.
+
+## 3. Artifacts read (archive preflight)
+
+- `openspec/changes/per-instance-hook-scoping/proposal.md`
+- `openspec/changes/per-instance-hook-scoping/spec.md` (flat, authoritative planning artifact — 21 requirements PI-101 … PI-121)
+- `openspec/changes/per-instance-hook-scoping/specs/service-instance-scoping/spec.md` (change-side domain delta — `## ADDED Requirements`)
+- `openspec/changes/per-instance-hook-scoping/design.md`
+- `openspec/changes/per-instance-hook-scoping/tasks.md`
+- `openspec/changes/per-instance-hook-scoping/apply-progress.md`
+- `openspec/changes/per-instance-hook-scoping/verify-report.md`
+- `openspec/changes/per-instance-hook-scoping/sync-report.md`
+- `openspec/specs/service-instance-scoping/spec.md` (canonical, sync target — verified present and untouched)
+- `openspec/config.yaml` (rules: proposal/tasks; no `rules.archive` override)
+- House-style reference: `openspec/changes/archive/2026-07-09-service-credential-tester/archive-report.md`
+
+> The legacy flat `spec.md` is **not** the only spec artifact: a per-domain delta
+> (`specs/service-instance-scoping/spec.md`) and a canonical spec both exist, so the "legacy flat
+> spec as the *only* artifact" archive-block condition does not apply. The flat spec travels with the
+> archived folder as part of the audit trail.
+
+## 4. Domains synced & requirement delta
+
+| Domain | Change-side delta | Canonical | Action |
+|---|---|---|---|
+| `service-instance-scoping` | `specs/service-instance-scoping/spec.md` | `openspec/specs/service-instance-scoping/spec.md` | **NEW domain — ADDED** — 21 requirements copied into the canonical store as a brand-new spec |
+
+- **ADDED (21)** — all to the new `service-instance-scoping` domain (canonical did not exist
+  pre-change). IDs and text preserved verbatim from the verified flat `spec.md`. Grouped logically:
+  - *Frontend hooks (serviceId param + queryKey)* — PI-101, PI-102, PI-103, PI-104, PI-105, PI-106, PI-107
+  - *API client functions (serviceId → query param)* — PI-108, PI-109
+  - *Backend backup endpoints (service_id filter)* — PI-110, PI-111, PI-112
+  - *Tabs pass instance.id (TODO comments removed)* — PI-113, PI-114, PI-115, PI-116
+  - *Non-regression (dashboard widgets, global hooks untouched)* — PI-117
+  - *Backward compatibility* — PI-118
+  - *Test + build greenness* — PI-119, PI-120, PI-121
+- **MODIFIED (0)** — none (new domain; no pre-existing canonical requirements to replace).
+- **REMOVED (0)** · **RENAMED (0)** — nothing destructive.
+
+## 5. Final lifecycle status (all 8 phases done)
+
+| Phase | Status | Evidence |
+|---|---|---|
+| Proposal | ✅ done | `proposal.md` — correctness fix; carry-over from `services-as-hub-ia` (2026-06-26) |
+| Spec | ✅ done | flat `spec.md` (21) + domain delta `specs/service-instance-scoping/spec.md` (21 ADDED) |
+| Design | ✅ done | `design.md` — 6 design decisions incl. decision 5 (dashboard variant excluded) |
+| Tasks | ✅ done | `tasks.md` — **17/17** checked, zero `- [ ]` |
+| Apply | ✅ done | 1 slice delivered (commit `3bc7ce5`, +268/−73, 12 files) |
+| Verify | ✅ PASS | `verify-report.md` — 21/21 PASS; gates green (verify's single CRITICAL was archive-only hygiene, now resolved) |
+| Sync | ✅ done | `sync-report.md` — SYNCED; canonical `service-instance-scoping` domain ADDED (now 21 requirements) |
+| Archive | ✅ done | this report + folder move performed |
+
+## 6. Gate results (per verify-report / apply-progress)
+
+| Gate | Command | Result |
+|---|---|---|
+| Backend tests | `cd backend && PYTHONPATH=src python3 -m pytest -q` | **PASS** — 368 passed (+6 new), 2 pre-existing warnings |
+| Backend lint | `cd backend && PYTHONPATH=src python3 -m ruff check src tests` | **PASS** — All checks passed |
+| Frontend build | `cd frontend && npm run build` | **PASS** — exit 0 (pre-existing chunk-size advisory) |
+| Frontend lint | `cd frontend && npm run lint` | **PASS** — 0 errors (1 pre-existing unrelated warning in `WidgetConfigDialog.tsx`) |
+| Frontend tests | `cd frontend && npx vitest run` | **PASS** — 46 files, 165 tests passed (+7 new) |
+
+## 7. Carry-over follow-ups & non-blocking notes (recorded for the record)
+
+1. **[USER VALUE — the correctness bug this change resolves].** When more than one Alertmanager,
+   Prometheus, or backups instance is configured, opening a specific instance's service page
+   (`/{serviceType}/{instanceId}`) previously showed data for whichever instance the hook resolved
+   as first-configured **globally** — not the instance being viewed. The root cause: the frontend
+   hooks queried without a `serviceId` and the tabs did not pass `instance.id`. This change threads a
+   `serviceId` into the six relevant hooks (`useAlertmanagerAlerts/Status`, `usePrometheusStatus`,
+   `useBackupJobs/Runs/Alerts`) — both into the `queryKey` (per-instance cache) and through the fetch
+   functions to `?service_id=` on the backend — and wires `instance.id` into `AlertsTab`,
+   `MetricsTab`, and `JobsTab`. Instance switching now naturally re-scopes (URL param → `instance`
+   recompute → queryKey change → refetch). This was a documented carry-over risk from the
+   `services-as-hub-ia` verify-report (2026-06-26). Resolved.
+2. **[DESIGN — intentional scope decision 5] `fetchBackupDashboard` / `useBackupDashboard` /
+   `get_backup_dashboard` deliberately untouched.** The dashboard summary variant feeds the
+   `BackupDashboardWidget` component via `GET /api/dashboard/backups` →
+   `build_backup_dashboard_summary(store)` in `routers/dashboard.py` — a **dashboard widget path**,
+   not any instance-scoped tab. JobsTab calls `useBackupJobs`/`useBackupRuns`/`useBackupAlerts` for
+   its three sub-tables, never `useBackupDashboard`. Scoping the dashboard variant would require
+   modifying `build_backup_dashboard_summary` to accept a `service_id` filter and would risk the
+   PI-117 non-regression guarantee for zero tab benefit. Design decision 5 (design §5) and tasks
+   1.5/1.9 explicitly exclude it; `BackupDashboardWidget` test remains green. Documented in
+   `apply-progress.md`. Informational.
+3. **[IMPLEMENTATION — schema asymmetry] Backup runs/alerts scoped via subquery.** Only the
+   `backup_jobs` table carries the `service_id` column; `backup_runs` and `backup_alerts` are
+   attributed to a service only transitively through their `job_id` FK. Accordingly,
+   `list_backup_jobs(service_id)` uses a direct `WHERE service_id = ?`, while `list_backup_runs` and
+   `list_backup_alerts` use a parameterized subquery
+   `job_id IN (SELECT id FROM backup_jobs WHERE service_id = ?)`. All new params are optional with a
+   truthy-guard (`if service_id:`) so both `None` and `""` skip the filter, preserving backward
+   compatibility (the backup poller and the dashboard summary builder call unfiltered). The subquery
+   is parameterized — no string interpolation, no injection risk (verify adversarial check passed).
+   Informational.
+4. **[INFO — non-blocking, verify NB-1] Spec↔design wording mismatch on PI-109 / PI-110.** The flat
+   spec literally lists `fetchBackupDashboard` / `get_backup_dashboard` as in-scope for a new
+   service param, while design decision 5 and tasks 1.5/1.9 deliberately exclude them. The
+   implementation correctly follows the design. The delta/canonical preserved the flat spec text
+   **verbatim** (PI-109 / PI-110 still mention the dashboard variants) per the sync fidelity rule
+   (do not rewrite verified requirements during sync). If a future change wants spec and design to
+   agree literally, it can amend in a follow-up change. No functional defect.
+5. **[INFO — non-blocking, verify NB-2] Weak hook-test assertion (PI-121).** `useBackups.test.ts`
+   "different keys for different serviceIds" asserts `expect(a).not.toBe(b)` on two `renderHook`
+   result objects, which is trivially true (each render returns a new reference) and does not assert
+   the `queryKey` actually differs. The wiring is correct in source (manually verified) and the
+   **tab** test (`AlertsTab.test.tsx` `toHaveBeenCalledWith("am-1")`) is strong, so PI-121 is
+   satisfied. Recommend strengthening the hook test to inspect the query cache keys. Non-blocking.
+6. **[INFO]** Stale generated `.pi-map.md` files still reference the pre-change signatures (e.g.
+   `list_backup_jobs(self)` without `service_id`, `fetchBackupJobs()`). Generated artifacts, not
+   deliverable source; reconcile via `project_map_patch` when convenient.
+7. **[INFO]** The working tree carries unrelated dirty/untracked items **not owned by this archive**:
+   an uncommitted cosmetic modification to `frontend/src/pages/ServicesPage.tsx` (stray from another
+   change) and untracked `.pi-tmp/*` scratch files, plus other uncommitted source edits from prior
+   work. Per discipline these were **left untouched**.
+
+## 8. Residual risks & destructive-merge statement
+
+- **Destructive sync / merge:** **none destructive.** This was a brand-new canonical domain
+  (`service-instance-scoping`) — a pure `## ADDED Requirements` delta. Zero MODIFIED and zero
+  REMOVED requirements, so no destructive-removal guard was triggered and no destructive-sync parent
+  approval was required.
+- **Backend / data-contract impact:** minimal and backward-compatible. All new `service_id` /
+  `serviceId` parameters are optional with defaults that preserve prior behavior; unfiltered callers
+  (backup poller, dashboard summary builder) are unaffected. The filter is parameterized (no
+  injection). Archive touched only OpenSpec docs + the folder move.
+- **No critical verification issues** remain (CRITICAL issues are non-overridable; the single verify
+  CRITICAL was the reconcilable checkbox/apply-progress gap, now resolved).
+- **No browser/visual smoke** was performed (out of scope); the tabs are covered by Vitest component
+  tests.
+- **Memory observation IDs:** none — `artifactStore: openspec`; traceability lives in the filesystem
+  archive + canonical spec.
+
+## 9. Move performed
+
+```
+git mv openspec/changes/per-instance-hook-scoping openspec/changes/archive/2026-07-09-per-instance-hook-scoping
+```
+
+- **All 9 artifacts confirmed present at the archived path:** `proposal.md`, `spec.md`,
+  `specs/service-instance-scoping/spec.md` (delta), `design.md`, `tasks.md`, `apply-progress.md`,
+  `verify-report.md`, `sync-report.md`, `archive-report.md` (this file).
+- **Canonical `openspec/specs/service-instance-scoping/spec.md` remains in place** (verified
+  untouched after the move — sha256 unchanged). `openspec/specs/web-ui/spec.md`,
+  `openspec/specs/prometheus-charting/spec.md`, `openspec/specs/service-storage/spec.md`, and
+  `openspec/specs/service-credential-testing/spec.md` also untouched.
+- Renames were left **staged** (R100 detection preserved) for the parent's explicit-path commit.
+  `git restore --staged` was **not** run after the `git mv`.
+
+---
+
+### Appendix — Files written/moved by this archive (OpenSpec only; no source code)
+
+- **Written:** `openspec/changes/per-instance-hook-scoping/archive-report.md` (this file) — at the
+  active path before the move; travels with the move into the archive.
+- **Moved (via `git mv`):** the entire
+  `openspec/changes/per-instance-hook-scoping/` directory →
+  `openspec/changes/archive/2026-07-09-per-instance-hook-scoping/`.
+- **Left in place (durable canonical):** `openspec/specs/service-instance-scoping/spec.md`.
+- **Not committed / not pushed** — the parent owns the commit with explicit paths.