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+# C1 fix design — memory-bounded terminal retention
+
+Status: APPROVED at decision gate (A+B+C, D deferred) with binding conditions:
+(1) parked-SSH reveal must verify per-pty-class that a main-side headless
+emulator actually backs `pty:getMainBufferSnapshot` (accept only
+`source === 'headless'`); degrade to relay replay otherwise — never a
+blank/stale paint. (2) Separable commits A→B→C, each independently
+revertable behind its own kill switch; A/B default ON. (3) Budget defaults
+12-hidden + 45-min TTL as named constants with sizing comments grounded in
+the measured 2.5–19 MB numbers. (4) Preserve the damping conventions in §1.2;
+add a flip-loop regression test for eviction. (5) Tests must cover SSH
+park+reveal round-trip fidelity, folder workspaces, remote-runtime eviction,
+fail-open exemption, and C demotion+restore. (6) Explicit non-claim recorded
+below.
+
+**Non-claim and residual (gate condition 6):** this fix does NOT claim H1
+alone reaches 3.5 GB. It bounds the retained-pane fleet, which also bounds
+every per-pane accumulator. The named residual is the uncapped
+`pendingSideEffects` queue (`terminal-pane/pty-transport.ts:157`, H2 in the
+diagnosis) — it still grows without bound inside a *visible or warm* pane
+under background timer throttling and needs its own cap + drain fix as a
+follow-up. H3 (premature ack) is already fixed at HEAD (#10012) but absent
+from the 1.4.15x field builds.
+All cites at HEAD `9eff3728a3` in this worktree. Companion diagnosis:
+`crash-c1-heap-leak-diagnosis/C1_DIAGNOSIS.md` (other worktree, read-only).
+
+---
+
+## 1. Confirmed mechanism at HEAD (Phase-1 re-verification)
+
+The H1 mechanism holds at HEAD exactly as diagnosed at v1.4.155; the only
+change to the two core files since v1.4.155 was #10179 and its revert.
+
+- `Terminal.tsx:1018` — `mountedWorktreeIdsRef.current.add(...)` on every
+  activation, permanently; removal only when the worktree ceases to exist
+  (`:1031-1037`). Both render paths mount panes for every id in the set
+  (`:2071` split, `:2124` legacy).
+- The mounted set also grows **without user action**: background mounts from
+  agent launches (`launch-agent-background-session.ts:303`), sleeping-agent
+  wakes (`wake-sleeping-agents-in-background.ts:83`), mobile tab subscriptions
+  (`useIpcEvents.ts:1694`), CLI-driven tab creation (`useIpcEvents.ts:1767`),
+  and browser-automation bootstrap leases which mount the **whole worktree**
+  with no tab restriction (`useIpcEvents.ts:222`). This is what survives
+  `renderer_recovery_reload` and re-populates the set overnight.
+- Sole eviction lever is cold parking, and eligibility is all-or-nothing:
+  `canParkTerminalWorktreeRenderers` (`terminal-hidden-view-parking.ts:70-108`)
+  requires `isSnapshotBackedTerminalPty` (`:56-68`) for EVERY tab. HEAD adds a
+  further veto absent from the v155 diagnosis: a worktree with any
+  **watcher-uncoverable** tab never parks (`Terminal.tsx:875-880`).
+- Un-parkable classes at HEAD (each ⇒ unlimited retention of the whole
+  worktree): SSH ptys, remote-runtime ptys, null ptyIds
+  (`ssh-target-cleanup.ts:127` mints exactly that), separator-less
+  daemon-fail-open ids, ptys minted under another worktreeId
+  (`terminal-hidden-view-parking.ts:56-68`), tabs with pending
+  startup/activation spawns (`:99-106`), and any watcher-uncoverable tab
+  (`terminal-parked-tab-watchers.ts:92-109`).
+- Caps compose per-worktree: `TERMINAL_TAB_HOT_RETAIN_LIMIT = 12` is enforced
+  per overlay-layer instance, i.e. per worktree
+  (`use-terminal-tab-cold-parking.ts:136`), on top of the 8-worktree warm cap
+  — and neither cap sees un-parkable worktrees at all.
+
+Corrections to the established framing (things the fix should NOT build for):
+
+1. **The legacy non-split path is effectively dead.**
+   `anyMountedWorktreeHasLayout` synthesizes a layout from merely having one
+   group (`split-group-mount.ts:7-23,33-45`); groups are created on first
+   `addTab` (`tab-group-state.ts:57-80`) and hydration always writes both
+   (`tabs-hydration.ts:271-284`). The legacy branch is reachable only when
+   every mounted worktree has zero tabs and zero groups. Per-tab-parking
+   parity for it, or retiring it, is not a C1 lever (kept out of scope).
+2. **No parking flip-loop ever existed.** The first parking attempt
+   (`1ab6b87c7f`, reverted `8eee59c084`) was pulled for going *silent* (no
+   byte watchers), not for oscillating. The two real React #185 loops
+   (`9038a78d37` overlay measure↔fit; `e8452c8c50` Activity portal
+   reconciliation) are adjacent, and their post-mortems define the damping
+   conventions any new lever must keep: verdict excluded from its own effect
+   deps (`Terminal.tsx:911-921`), set-equality bail-outs returning the
+   previous reference (`Terminal.tsx:153-163`), strictly-positive recheck
+   delays (`terminal-hidden-view-parking.ts:269-284`), and monotone
+   consumption edges. The one genuinely bidirectional verdict input is
+   Activity-portal readiness; the watcher-coverage veto reads module state
+   written at unmount (`terminal-parked-watcher-registry.ts:25-35`) and sits
+   in no dep array.
+3. **SSH exclusion is about reveal fidelity, not observability.** Fact-mode
+   parked watchers subscribe main-computed side-effect facts and work for any
+   pty whose bytes transit local main — which includes SSH; only a non-null
+   `runtimeEnvironmentId` disqualifies
+   (`terminal-side-effect-facts-handler.ts:44-62`). And main already
+   maintains a headless emulator (~5000-row model) for every pty it ingests,
+   SSH included: `runtime.onPtyData` → `trackHeadlessTerminalData` →
+   `getOrCreateHeadlessTerminal` (`orca-runtime.ts:7484,7528,9026-9044,
+   9105-9113`), served over `pty:getMainBufferSnapshot`
+   (`src/main/ipc/pty.ts:4058-4116`). **The SSH reattach path simply never
+   consults it** — it paints the relay's rolling 100 KiB raw-byte buffer
+   (`src/relay/pty-handler.ts:175,472-480`) after an unconditional clear
+   (`pty-connection.ts:7378-7391`).
+4. **Remote-runtime is the genuinely hard class.** No bytes transit main (no
+   emulator, no facts); the desktop subscribe snapshot is screen-only —
+   `scrollbackRows: 0` (`src/main/runtime/rpc/methods/terminal.ts:682-696`)
+   — even though the runtime host holds scrollback and serves it to mobile
+   (`:697-714`).
+
+## 2. Quantification (what a retained hidden pane actually costs)
+
+Measured empirically with the repo's own `@xterm/headless@6.1.0-beta.287`
+(agent-CLI-like SGR output, 200 cols; steady state after scrollback wrap):
+
+| scrollback | V8 heap (counts toward the 3586 MB ceiling) | ArrayBuffers (off-heap, invisible to `usedJSHeapSize`) |
+|---|---|---|
+| 5 000 rows (default) | ~2.5 MB | ~12 MB |
+| 50 000 rows (max) | ~19 MB | ~115 MB |
+
+Cost plateaus once scrollback wraps (120k lines into a 50k buffer = same as
+60k). On top of the xterm graph, each mounted-but-hidden pane retains: all six
+addons, ResizeObservers, React fiber tree, the PTY IPC subscription, a
+background write queue capped at max(2 MiB, rows×120) chars — up to ~6 MB at
+50k rows (`terminal-scrollback-policy.ts:37-46`,
+`pane-terminal-output-scheduler.ts:102,124`) — and the **uncapped**
+`pendingSideEffects` array (`terminal-pane/pty-transport.ts:157`, H2), which
+is per-pane closure state and grows without bound under background timer
+throttling. Only worktree-level hiding releases WebGL; a tab hidden behind a
+sibling in the active worktree keeps its GL context
+(`terminal-visibility-resume.ts:103-137`). Nothing trims scrollback or
+addons on hide.
+
+**Honest magnitude statement.** Static H1 retention alone reaches GB scale
+only with ~10⁲ big-scrollback panes (e.g. 20 SSH worktrees × 5 agent tabs ≈
+0.4–1.9 GB depending on scrollback setting, plus per-pane floors). The
+observed multi-hour monotone climbs and the codeg-dev 1.7 GB-in-20-min boot
+burst are best explained as **H1 × per-pane accumulators**: H1 supplies an
+unbounded, streaming, never-evicted pane fleet; H2 (and, in the 1.4.15x field
+builds, H3 premature-ack) supply per-pane growth that never plateaus.
+Bounding the fleet bounds the class — every per-pane accumulator dies with
+its pane. If the gate wants a pure-H1 story, this design does not claim one;
+the instrumentation branch (`crash-c1-heap-leak-diagnosis` @ 57f39c369b:
+precise memory + paneTerminals census + terminalOutputQueue contributor)
+confirms attribution on the next field cycle and composes with this fix
+unchanged.
+
+Field fit: the zero-git OOM bundle (`1biDRoy…`, 6.6 MB/min for 10 h) is an
+SSH workspace with 7 worktree activations — the exact "nothing can ever
+park" profile.
+
+## 3. Consumers/assumptions of "mounted forever" (eviction blast-radius map)
+
+What unmounting a pane already handles correctly (verified disposal chain:
+`use-terminal-pane-lifecycle.ts:1587-1680`, `pane-lifecycle.ts:213-300`,
+`pty-connection.ts:8264-8377`): PTY survives (detach, never kill,
+`pty-transport.ts:906-916`); store tab entry, `tab.ptyId`, layouts, and
+`capturedPanesByTabId` persist; exit observers stay registered.
+
+What breaks or degrades if a worktree is evicted without further work:
+
+| surface | behavior after eviction | mitigation available |
+|---|---|---|
+| Bells/titles/completions/PR links | dark unless a watcher covers the tab; watcher predicate today requires snapshot-backed pty (`terminal-parked-tab-watchers.ts:92-109`) | fact-mode works for SSH/local/fail-open (bytes transit main); only remote-runtime lacks the channel |
+| Agent status (sidebar) | main-side `agentDetector`/OSC processing runs at ingestion regardless of panes (`orca-runtime.ts:7500-7505`); remote-runtime status flows via runtime graph | verify per-surface in tests |
+| Reveal content, local daemon-backed | full daemon snapshot reattach — today's parked path (`pty-connection.ts:7892-7933`) | none needed |
+| Reveal content, SSH | relay replay: last 100 KiB raw bytes, no dimension match; empty after relay restart; `SSH_SESSION_EXPIRED` → blank fresh shell (`ssh-pty-session-reattach.ts:39-81`, `pty-connection.ts:7746-7752`) | main headless snapshot upgrade (Option A) |
+| Reveal content, remote-runtime | current screen only, zero scrollback | RPC change to request scrollback rows (exists server-side for mobile) |
+| Reveal content, daemon-fail-open (separator-less id) | generic path fresh-spawns, **orphaning the live pty** (`pty-connection.ts:7885,8106`) | exempt from eviction, or accept + 512 KB capture painted as cold-restore |
+| OSC 133;D / Command Code facts | already dropped for parked tabs today (watcher omits `onCommandFinished`/`onCommandCode*`, cf. `pty-connection.ts:2212-2234`) — pre-existing gap, unchanged | out of scope |
+| Snapshot restore fidelity, folder workspaces | folder-workspace ids are worktree-shaped; `isSnapshotBackedTerminalPty` passes identically (`pty-session-id.ts:21-25`) — no special-case needed | covered by tests |
+| Input during eviction | impossible (hidden worktree has no focused pane); parked-tab input path already routes `window.api.pty.write` (`terminal-parked-tab-watchers.ts:143`) | n/a |
+
+## 4. Options
+
+### Option A — Make SSH worktrees parkable (fidelity upgrade + eligibility)
+
+Convert the largest un-parkable class into ordinary parked citizens.
+
+1. **Eligibility:** extend the parking predicate so an SSH pty
+   (`parseAppSshPtyId`) counts as restorable, gated on a per-pty "main model
+   available" signal rather than blanket exclusion. Keep remote-runtime,
+   separator-less, foreign-worktree, null exclusions unchanged.
+2. **Watcher coverage:** relax `canWatcherCoverParkedTerminalTab` for SSH to
+   the fact-mode availability predicate (bytes transit main). No new watcher
+   machinery: fact consumers already work for SSH.
+3. **Reveal fidelity:** on parked-SSH reveal, keep relay `pty.attach` as the
+   liveness authority (unchanged — respects the SSH reattach recovery chain),
+   but paint from `pty:getMainBufferSnapshot` (≈5000-row dimension-matched
+   serialized model, incl. `pendingEscapeTailAnsi`) when it returns non-null,
+   falling back to today's 100 KiB relay replay when it returns null (main
+   returns null after a delivery gap when only a tail is retained —
+   `src/main/ipc/pty.ts:4082-4090`). The fetch/apply/dedupe machinery exists
+   (`applyMainBufferSnapshot`, `pty-connection.ts:6561-6711`; seq-bounded via
+   `pendingDeliveryStartSeq`).
+
+- **Data loss / UX:** strictly better than today's *unmount* outcome and
+  bounded vs today's *retention* outcome: a re-activated parked SSH worktree
+  shows ~5k rows of scrollback instead of (a) full renderer buffer at
+  unbounded memory cost, or (b) 100 KiB raw replay. Bells/titles/completions
+  stay live via facts. Scroll position restored as bottom-offset intent like
+  local parks.
+- **Flip-loop surface:** none new — same verdict machinery, one more class
+  passes the existing (damped) filter. The eligibility signal must be stable
+  (derive from pty id shape + a monotone capability latch, never from
+  fetch-time success/failure).
+- **Blast radius:** parking predicate, watcher predicate, SSH reveal paint
+  path. No main-process changes required (snapshot IPC exists).
+- **Rollback:** the existing `terminalHiddenViewParking` kill switch disables
+  the whole lever; a class-scoped flag (`parkSshTerminals`) can gate just
+  this.
+- **Limit:** does nothing for remote-runtime / fail-open / foreign-pty /
+  uncoverable classes; retention stays eligibility-bounded for them.
+
+### Option B — Hard mounted-worktree budget applied BEFORE parkability (the actual memory bound)
+
+The task's stated goal — memory-bounded rather than eligibility-bounded —
+requires an eviction lever that does not consult eligibility.
+
+1. In the existing worktree-parking effect (`Terminal.tsx:822-921`), after
+   the parked-set selection, rank **all** hidden mounted worktrees (parkable
+   or not) by `hiddenSinceMs`, with the same exemptions parking already
+   honors (visible, measurable, portal-holding, pending startup/activation
+   spawn, last-active). Beyond a budget `MAX_MOUNTED_HIDDEN_WORKTREES`
+   (proposed 12) **or** past a long TTL (proposed 45 min) for un-parkable
+   ones, **evict**: delete from `mountedWorktreeIdsRef`, drop restriction
+   maps and `hiddenSince` (the deletion path that already exists for removed
+   worktrees, `Terminal.tsx:1031-1037`), bump a revision state guarded by
+   set-equality.
+2. Eviction = full unmount; re-activation is identical to first activation
+   after boot (reattach per class; Option A upgrades the SSH case). Start
+   fact-mode watchers for evicted tabs where the transport exists (SSH,
+   local, fail-open); remote-runtime tabs go dark for bells/titles (agent
+   status still flows via the runtime graph) — accepted, documented loss.
+3. Class carve-outs: separator-less daemon-fail-open tabs are exempt from
+   eviction (remount would fresh-spawn and orphan the live pty,
+   `pty-connection.ts:8106`) — they fall to Option C instead.
+4. Best-effort capture at eviction: run the existing 512 KB
+   `shutdownBufferCaptures` serialization (`TerminalPane.tsx:2347-2389`,
+   `terminal-shutdown-layout-capture.ts:49-152`) into
+   `layout.buffersByLeafId` before unmount, so even a snapshot-less remount
+   paints last-known content cold-restore-style rather than blank.
+
+- **Data loss / UX:** an evicted worktree re-activates like after an app
+  restart: local = full snapshot; SSH = 5k rows (with A) or 100 KiB replay;
+  remote-runtime = current screen + captured tail. Worst case is strictly
+  the app-restart experience users already have.
+- **Flip-loop surface:** the new verdict follows every existing damping rule:
+  computed in the same effect, excluded from its own deps, set-equality
+  guard, positive-delay recheck timers, and eviction is monotone (a worktree
+  leaves the set; only real activation/background-mount events re-add it).
+  The one cyclical risk is a periodic background-mount re-mounting an evicted
+  worktree (browser-automation lease, mobile subscribe); cadence is bounded
+  below by the 30 s hysteresis + TTL, and the eviction ranking must treat a
+  re-mounted worktree as freshly hidden (it does — `hiddenSince` restarts).
+- **Blast radius:** Terminal.tsx effect, watcher predicate (shared with A),
+  capture call, new policy function + constants in
+  `terminal-hidden-view-parking.ts`. No main changes.
+- **Rollback:** new setting `terminalMountedWorktreeBudget` (0/absent =
+  disabled) independent of the parking kill switch; ship default-on in rc,
+  flip default via settings if the field disagrees.
+
+### Option C — Scrollback demotion for eviction-exempt hidden panes
+
+For panes that must stay mounted (fail-open class; any future exempt class):
+after the hot-retain TTL hidden, set `terminal.options.scrollback` to 1 000
+and back on reveal. Reclaims ~80 % of the xterm graph (19 MB → ~2.5 MB at
+50k settings) with zero mount-topology change, zero coverage change, zero
+flip-loop surface (no React state involved; a pane-manager pass over hidden
+panes). Cost: trimmed history for long-hidden panes of that class; does not
+bound pane count, fibers, or the H2 queue.
+
+### Option D — Byte-weighted hot-retain budget (refinement, not proposed now)
+
+Replace count caps with a byte budget using `terminal.buffer.active.length`
+per mounted pane. With A+B in place the count caps stop being the binding
+constraint; defer unless field data shows the warm set itself is the residual
+problem. (Also candidates for follow-up hygiene, not this fix: making the
+12-tab cap global rather than per-worktree; capping `pendingSideEffects`,
+which is H2's own fix.)
+
+## 5. Recommendation (ranked)
+
+**Ship A + B together, C as the carve-out companion, D deferred.**
+
+- A alone fixes the dominant observed class (SSH; the zero-git OOM bundle)
+  with the smallest risk, but leaves retention eligibility-bounded — any new
+  pty class silently re-opens unlimited retention.
+- B alone bounds everything but delivers a worse SSH reveal (100 KiB replay)
+  than A makes possible, and SSH is the class users will actually hit.
+- A+B: retention is memory-bounded for every class, and the highest-traffic
+  class re-activates at near-local fidelity. C covers the one class B must
+  exempt. All three are independently kill-switchable.
+
+Suggested landing order (single branch, separable commits): policy module +
+tests → A (eligibility + watcher predicate + SSH paint) → B (budget +
+eviction + capture) → C (demotion). If the gate wants a smaller first slice:
+A alone is shippable and reversible; B follows in the same release train.
+
+## 6. Test plan
+
+Unit (vitest):
+- `terminal-hidden-view-parking.test.ts` extensions: SSH ids eligible under
+  the new predicate; remote/fail-open/foreign still excluded; eviction
+  ranking (budget, TTL, exemptions, last-active, determinism); set-equality
+  no-op on unchanged recompute (currently untested, per the flip-loop
+  report); recheck-delay positivity for the new deadlines.
+- Watcher predicate: fact-mode coverage accepted for SSH pty ids; remote
+  runtime still uncoverable; capture-staleness on pty re-mint unchanged.
+- Eviction reducer/helper: restriction maps and hiddenSince cleaned;
+  fail-open exemption; capture invoked before unmount.
+- SSH reveal paint: snapshot-preferred, relay-replay fallback on null, seq
+  dedupe bound honored (mock transport).
+
+E2E (Playwright, existing harness `tests/e2e/terminal-hidden-view-parking.spec.ts`
+patterns + `terminal-parked-memory.spec.ts`):
+- SSH-workspace park/reveal fidelity (extend the existing SSH e2e rig);
+  bell/title while an SSH worktree is parked.
+- Eviction: activate N>budget worktrees with streaming tabs, assert panes
+  beyond budget unmount (`terminalElements` census), reveal restores, and
+  memory falls (parked-memory spec pattern).
+- Folder-workspace park/evict/reveal parity (project rule).
+- Flip-loop guard: drive 25 evict/re-activate cycles (mirror of the existing
+  25-cycle park spec `:467`), assert no React #185 and byte-for-byte restore
+  where snapshot-backed.
+- Legacy path: not covered (dead code; assert only that the worktree-level
+  verdict still compiles it out — no new machinery).
+
+Gates: `oxfmt --check -c .oxfmtrc.json` on changed files, oxlint, typecheck,
+targeted vitest suites; no max-lines disables.
+
+## 7. Rollout / rollback
+
+- Three independent switches: existing `terminalHiddenViewParking` (master),
+  new `parkSshTerminals` (A), new `terminalMountedWorktreeBudget` (B; 0
+  disables, also disables C's TTL demotion). Defaults on in rc.
+- Composes with the instrumentation branch: its `paneTerminals` census and
+  precise-memory highwater directly measure this fix's effect in the field
+  (expected signature: `paneTerminals.live` plateaus at the budget; heap
+  staircase flattens after the warm window).
+- Revert story: each option is a separable commit; B's eviction is additive
+  to the parking effect and reverts cleanly; A's paint change falls back to
+  the relay-replay branch which remains intact.
diff --git a/src/renderer/src/components/Terminal.tsx b/src/renderer/src/components/Terminal.tsx
index 237dbafae23..8314f7271bf 100644
--- a/src/renderer/src/components/Terminal.tsx
+++ b/src/renderer/src/components/Terminal.tsx
@@ -272,6 +272,7 @@ function Terminal(): React.JSX.Element | null {
   const tabsByWorktree = useAppStore((s) => s.tabsByWorktree)
   const pendingStartupByTabId = useAppStore((s) => s.pendingStartupByTabId)
   const terminalParkingEnabled = useAppStore((s) => s.settings?.terminalHiddenViewParking !== false)
+  const terminalSshParkingEnabled = useAppStore((s) => s.settings?.terminalSshViewParking !== false)
   const terminalTitleSnapshotAuthorityEnabled = useAppStore((s) =>
     isMainTerminalSideEffectAuthorityForPty({
       settings: s.settings,
@@ -883,6 +884,7 @@ function Terminal(): React.JSX.Element | null {
       pendingStartupByTabId,
       parkingEnabled: terminalParkingEnabled,
       nowMs,
+      restorePolicy: { sshParkingEnabled: terminalSshParkingEnabled },
       ...overrides
     })
     // Why: a worktree with any watcher-uncoverable tab must never park, or it goes silent for bells/titles/completions (sank the first parking attempt).
@@ -931,6 +933,7 @@ function Terminal(): React.JSX.Element | null {
     tabsByWorktree,
     terminalParkingEnabled,
     terminalParkingRevision,
+    terminalSshParkingEnabled,
     workspaceSurfaces
   ])
   // Why: gate on workspaceSessionReady so TerminalPane doesn't mount and spawn a duplicate PTY before reconnectPersistedTerminals() finishes.
diff --git a/src/renderer/src/components/terminal-pane/pty-connection.ts b/src/renderer/src/components/terminal-pane/pty-connection.ts
index 3962b06f890..fbd3fa7511e 100644
--- a/src/renderer/src/components/terminal-pane/pty-connection.ts
+++ b/src/renderer/src/components/terminal-pane/pty-connection.ts
@@ -243,6 +243,10 @@ import {
   scheduleHiddenOutputRestore
 } from './hidden-output-restore-scheduler'
 import { resolveHiddenRestoreScrollbackRows } from './terminal-hidden-restore-scrollback'
+import {
+  decideSshReattachPaintSource,
+  shouldFetchSshReattachModelSnapshot
+} from './ssh-reattach-model-restore'
 import {
   getExecutionHostIdForWorktree,
   getSettingsForWorktreeRuntimeOwner
@@ -7614,6 +7618,37 @@ export function connectPanePty(
       registerPaneSerializerFor(ptyId)
 
       let reattachPayloadApplied = !hasStructuralReplay
+      // Why (C1 SSH parking): main's headless model holds ~5k rows for SSH ptys
+      // while the relay replay is a 100KiB raw-byte tail; prefer the model on
+      // reveal. Only a non-empty 'headless'-sourced snapshot qualifies — the
+      // renderer-serializer fallback has no mounted xterm after a park.
+      const tryApplySshMainModelReattachSnapshot = async (): Promise<boolean> => {
+        const sshParkingEnabled = useAppStore.getState().settings?.terminalSshViewParking !== false
+        if (!shouldFetchSshReattachModelSnapshot({ ptyId, sshParkingEnabled })) {
+          return false
+        }
+        const snapshot = await window.api.pty
+          .getMainBufferSnapshot(ptyId, {
+            scrollbackRows: resolveHiddenRestoreScrollbackRows(pane.terminal.options.scrollback)
+          })
+          .catch(() => null)
+        if (!isCurrentReattachPayload()) {
+          // Why: a superseded attempt must not paint, but reporting true would skip the replay fallback of the live attempt.
+          return true
+        }
+        if (
+          !snapshot ||
+          decideSshReattachPaintSource({ ptyId, sshParkingEnabled, snapshot }) !==
+            'main-model-snapshot'
+        ) {
+          return false
+        }
+        rememberReattachPayloadAgentSignal(snapshot.data, { fullScreenReplay: true })
+        kittyKeyboardModes.scanReplay(snapshot.data)
+        await applyMainBufferSnapshot(snapshot)
+        sendFocusedReattachFocusInAfterReplay(ptyId, attemptGeneration)
+        return true
+      }
       const applyReattachPayload = async (): Promise<void> => {
         if (!isCurrentReattachPayload()) {
           return
@@ -7659,6 +7694,15 @@ export function connectPanePty(
             }
           }
         } else if (connectResult?.replay) {
+          if (await tryApplySshMainModelReattachSnapshot()) {
+            if (connectResult.coldRestore && !isRemoteRuntimePtyId(ptyId)) {
+              window.api.pty.ackColdRestore(ptyId)
+            }
+            return
+          }
+          if (!isCurrentReattachPayload()) {
+            return
+          }
           rememberReattachPayloadAgentSignal(connectResult.replay, { fullScreenReplay: true })
           // Relay replay may overlap xterm's pre-disconnect content; clear first to avoid duplication.
           writeReplayData('\x1b[2J\x1b[3J\x1b[H')
diff --git a/src/renderer/src/components/terminal-pane/ssh-reattach-model-restore.test.ts b/src/renderer/src/components/terminal-pane/ssh-reattach-model-restore.test.ts
new file mode 100644
index 00000000000..021b7781e16
--- /dev/null
+++ b/src/renderer/src/components/terminal-pane/ssh-reattach-model-restore.test.ts
@@ -0,0 +1,66 @@
+import { describe, expect, it } from 'vitest'
+import {
+  decideSshReattachPaintSource,
+  shouldFetchSshReattachModelSnapshot
+} from './ssh-reattach-model-restore'
+
+const SSH_PTY_ID = 'ssh:conn-1@@relay-pty-1'
+const LOCAL_PTY_ID = 'repo::/worktree@@session-1'
+
+describe('shouldFetchSshReattachModelSnapshot', () => {
+  it('fetches only for SSH ptys with SSH parking enabled', () => {
+    expect(
+      shouldFetchSshReattachModelSnapshot({ ptyId: SSH_PTY_ID, sshParkingEnabled: true })
+    ).toBe(true)
+    expect(
+      shouldFetchSshReattachModelSnapshot({ ptyId: SSH_PTY_ID, sshParkingEnabled: false })
+    ).toBe(false)
+    expect(
+      shouldFetchSshReattachModelSnapshot({ ptyId: LOCAL_PTY_ID, sshParkingEnabled: true })
+    ).toBe(false)
+  })
+})
+
+describe('decideSshReattachPaintSource', () => {
+  const headless = { data: 'screen', source: 'headless' as const }
+
+  it('paints from the main model only for a non-empty headless snapshot', () => {
+    expect(
+      decideSshReattachPaintSource({
+        ptyId: SSH_PTY_ID,
+        sshParkingEnabled: true,
+        snapshot: headless
+      })
+    ).toBe('main-model-snapshot')
+  })
+
+  it('degrades to relay replay on null, renderer-sourced, sourceless, or empty snapshots', () => {
+    for (const snapshot of [
+      null,
+      { data: 'screen', source: 'renderer' as const },
+      { data: 'screen' },
+      { data: '', source: 'headless' as const }
+    ]) {
+      expect(
+        decideSshReattachPaintSource({ ptyId: SSH_PTY_ID, sshParkingEnabled: true, snapshot })
+      ).toBe('relay-replay')
+    }
+  })
+
+  it('never upgrades when the kill switch is off or the pty is not SSH', () => {
+    expect(
+      decideSshReattachPaintSource({
+        ptyId: SSH_PTY_ID,
+        sshParkingEnabled: false,
+        snapshot: headless
+      })
+    ).toBe('relay-replay')
+    expect(
+      decideSshReattachPaintSource({
+        ptyId: LOCAL_PTY_ID,
+        sshParkingEnabled: true,
+        snapshot: headless
+      })
+    ).toBe('relay-replay')
+  })
+})
diff --git a/src/renderer/src/components/terminal-pane/ssh-reattach-model-restore.ts b/src/renderer/src/components/terminal-pane/ssh-reattach-model-restore.ts
new file mode 100644
index 00000000000..4ba28068b24
--- /dev/null
+++ b/src/renderer/src/components/terminal-pane/ssh-reattach-model-restore.ts
@@ -0,0 +1,36 @@
+import { parseAppSshPtyId } from '../../../../shared/ssh-pty-id'
+
+export type SshReattachPaintSource = 'main-model-snapshot' | 'relay-replay'
+
+export type SshReattachModelSnapshot = {
+  data: string
+  source?: 'headless' | 'renderer'
+}
+
+/**
+ * Which payload paints an SSH reattach (C1 SSH-parking design gate). Only
+ * main's headless model is trusted: a 'renderer'-sourced snapshot serializes a
+ * mounted xterm, which no longer exists once the pane parked — anything but a
+ * non-empty headless snapshot degrades to the relay replay, never a blank paint.
+ */
+export function decideSshReattachPaintSource(args: {
+  ptyId: string
+  sshParkingEnabled: boolean
+  snapshot: SshReattachModelSnapshot | null
+}): SshReattachPaintSource {
+  if (!args.sshParkingEnabled || parseAppSshPtyId(args.ptyId) === null) {
+    return 'relay-replay'
+  }
+  if (!args.snapshot || args.snapshot.source !== 'headless' || args.snapshot.data.length === 0) {
+    return 'relay-replay'
+  }
+  return 'main-model-snapshot'
+}
+
+/** Skip the snapshot fetch entirely when the paint could never use it. */
+export function shouldFetchSshReattachModelSnapshot(args: {
+  ptyId: string
+  sshParkingEnabled: boolean
+}): boolean {
+  return args.sshParkingEnabled && parseAppSshPtyId(args.ptyId) !== null
+}
diff --git a/src/renderer/src/components/terminal-pane/terminal-hidden-view-parking.test.ts b/src/renderer/src/components/terminal-pane/terminal-hidden-view-parking.test.ts
index 5c8026b74d0..b8102fa9492 100644
--- a/src/renderer/src/components/terminal-pane/terminal-hidden-view-parking.test.ts
+++ b/src/renderer/src/components/terminal-pane/terminal-hidden-view-parking.test.ts
@@ -11,6 +11,7 @@ import {
   canParkTerminalWorktreeRenderers,
   getTerminalTabColdParkRecheckDelayMs,
   getTerminalWorktreeColdParkRecheckDelayMs,
+  isParkRestorableTerminalPty,
   isSnapshotBackedTerminalPty,
   selectColdParkedTerminalTabs,
   selectColdParkedTerminalWorktrees
@@ -46,6 +47,32 @@ describe('isSnapshotBackedTerminalPty', () => {
   })
 })
 
+describe('isParkRestorableTerminalPty', () => {
+  const worktreeId = 'repo::/worktree'
+  const sshPolicy = { sshParkingEnabled: true }
+
+  it('accepts every snapshot-backed pty regardless of policy', () => {
+    expect(isParkRestorableTerminalPty(`${worktreeId}@@session-1`, worktreeId)).toBe(true)
+    expect(isParkRestorableTerminalPty(`${worktreeId}@@session-1`, worktreeId, sshPolicy)).toBe(
+      true
+    )
+  })
+
+  it('accepts SSH ptys only when the SSH-parking policy is enabled', () => {
+    expect(isParkRestorableTerminalPty('ssh:ssh-1@@pty-1', worktreeId, sshPolicy)).toBe(true)
+    expect(isParkRestorableTerminalPty('ssh:ssh-1@@pty-1', worktreeId)).toBe(false)
+    expect(
+      isParkRestorableTerminalPty('ssh:ssh-1@@pty-1', worktreeId, { sshParkingEnabled: false })
+    ).toBe(false)
+  })
+
+  it('rejects remote-runtime, fail-open, foreign, and null ptys under every policy', () => {
+    for (const ptyId of ['remote:env-1@@terminal-1', 'pty-local-detached', 'other@@s-1', null]) {
+      expect(isParkRestorableTerminalPty(ptyId, worktreeId, sshPolicy)).toBe(false)
+    }
+  })
+})
+
 describe('canParkTerminalWorktreeRenderers', () => {
   const hiddenSinceMs = 1_000
   const nowMs = hiddenSinceMs + TERMINAL_WORKTREE_PARK_DELAY_MS
@@ -65,6 +92,24 @@ describe('canParkTerminalWorktreeRenderers', () => {
     expect(canParkTerminalWorktreeRenderers(base)).toBe(true)
   })
 
+  it('parks a hidden SSH worktree only under the SSH restore policy', () => {
+    const sshArgs = {
+      ...base,
+      terminalTabs: [{ id: 'tab-1', ptyId: 'ssh:conn-1@@pty-1' }]
+    }
+    expect(canParkTerminalWorktreeRenderers(sshArgs)).toBe(false)
+    expect(
+      canParkTerminalWorktreeRenderers({ ...sshArgs, restorePolicy: { sshParkingEnabled: true } })
+    ).toBe(true)
+    expect(
+      canParkTerminalWorktreeRenderers({
+        ...sshArgs,
+        terminalTabs: [...sshArgs.terminalTabs, { id: 'tab-2', ptyId: 'remote:env-1@@t-1' }],
+        restorePolicy: { sshParkingEnabled: true }
+      })
+    ).toBe(false)
+  })
+
   it('keeps a previously mounted v19 terminal eligible for ordinary parking', () => {
     const legacyPtyId = 'repo::/worktree@@session-1'
     clearTerminalProviderSnapshotCapabilities()
diff --git a/src/renderer/src/components/terminal-pane/terminal-hidden-view-parking.ts b/src/renderer/src/components/terminal-pane/terminal-hidden-view-parking.ts
index f4b434c948b..26357d14a9c 100644
--- a/src/renderer/src/components/terminal-pane/terminal-hidden-view-parking.ts
+++ b/src/renderer/src/components/terminal-pane/terminal-hidden-view-parking.ts
@@ -67,6 +67,26 @@ export function isSnapshotBackedTerminalPty(ptyId: string | null, worktreeId: st
   return separatorIdx !== -1 && ptyId.slice(0, separatorIdx) === worktreeId
 }
 
+export type TerminalParkRestorePolicy = {
+  /** settings.terminalSshViewParking !== false — the C1 SSH-parking kill switch. */
+  sshParkingEnabled?: boolean
+}
+
+// Why: SSH bytes transit local main, so main's headless model (served over
+// pty:getMainBufferSnapshot) can re-hydrate a parked SSH reveal, with the
+// relay's replay buffer as fallback — fact-mode watchers cover side effects
+// either way. Remote-runtime ptys never transit main; they stay un-parkable.
+export function isParkRestorableTerminalPty(
+  ptyId: string | null,
+  worktreeId: string,
+  policy?: TerminalParkRestorePolicy
+): boolean {
+  if (isSnapshotBackedTerminalPty(ptyId, worktreeId)) {
+    return true
+  }
+  return policy?.sshParkingEnabled === true && ptyId !== null && parseAppSshPtyId(ptyId) !== null
+}
+
 export function canParkTerminalWorktreeRenderers(args: {
   worktreeId: string
   terminalTabs: readonly ColdParkableTerminalTab[]
@@ -80,6 +100,7 @@ export function canParkTerminalWorktreeRenderers(args: {
   hiddenSinceMs: number | null
   nowMs: number
   coldParkDelayMs?: number
+  restorePolicy?: TerminalParkRestorePolicy
 }): boolean {
   if (
     !args.parkingEnabled ||
@@ -103,7 +124,7 @@ export function canParkTerminalWorktreeRenderers(args: {
     if (getPendingActivationSpawnCount(tab.pendingActivationSpawn) > 0) {
       return false
     }
-    return isSnapshotBackedTerminalPty(tab.ptyId, args.worktreeId)
+    return isParkRestorableTerminalPty(tab.ptyId, args.worktreeId, args.restorePolicy)
   })
 }
 
@@ -114,6 +135,7 @@ export function canParkTerminalTabRenderer(args: {
   parkingEnabled: boolean
   nowMs: number
   coldParkDelayMs?: number
+  restorePolicy?: TerminalParkRestorePolicy
 }): boolean {
   const tab = args.terminalTab
   if (
@@ -133,7 +155,7 @@ export function canParkTerminalTabRenderer(args: {
   if (getPendingActivationSpawnCount(tab.pendingActivationSpawn) > 0) {
     return false
   }
-  return isSnapshotBackedTerminalPty(tab.ptyId, args.worktreeId)
+  return isParkRestorableTerminalPty(tab.ptyId, args.worktreeId, args.restorePolicy)
 }
 
 type ColdParkRetainCandidate = { id: string; hiddenSinceMs: number }
@@ -197,6 +219,7 @@ export function selectColdParkedTerminalWorktrees(
     pendingStartupByTabId: Readonly<Record<string, unknown>>
     parkingEnabled: boolean
     nowMs: number
+    restorePolicy?: TerminalParkRestorePolicy
   } & TerminalColdParkPolicyOverrides
 ): Set<string> {
   if (!args.parkingEnabled) {
@@ -212,7 +235,8 @@ export function selectColdParkedTerminalWorktrees(
         pendingStartupByTabId: args.pendingStartupByTabId,
         parkingEnabled: args.parkingEnabled,
         nowMs: args.nowMs,
-        coldParkDelayMs
+        coldParkDelayMs,
+        ...(args.restorePolicy ? { restorePolicy: args.restorePolicy } : {})
       })
     ) {
       continue
@@ -233,6 +257,7 @@ export function selectColdParkedTerminalTabs(
     pendingStartupByTabId: Readonly<Record<string, unknown>>
     parkingEnabled: boolean
     nowMs: number
+    restorePolicy?: TerminalParkRestorePolicy
   } & TerminalColdParkPolicyOverrides
 ): Set<string> {
   if (!args.parkingEnabled) {
@@ -249,7 +274,8 @@ export function selectColdParkedTerminalTabs(
         pendingStartupByTabId: args.pendingStartupByTabId,
         parkingEnabled: args.parkingEnabled,
         nowMs: args.nowMs,
-        coldParkDelayMs
+        coldParkDelayMs,
+        ...(args.restorePolicy ? { restorePolicy: args.restorePolicy } : {})
       })
     ) {
       continue
diff --git a/src/renderer/src/components/terminal-pane/terminal-parked-tab-watchers.test.ts b/src/renderer/src/components/terminal-pane/terminal-parked-tab-watchers.test.ts
index bd044d1578f..b67645133de 100644
--- a/src/renderer/src/components/terminal-pane/terminal-parked-tab-watchers.test.ts
+++ b/src/renderer/src/components/terminal-pane/terminal-parked-tab-watchers.test.ts
@@ -79,6 +79,7 @@ type MockStoreState = {
     }
   >
   runtimePaneTitlesByTabId: Record<string, Record<number, string>>
+  settings: { terminalSshViewParking?: boolean } | null
   clearTabLaunchAgent: ReturnType<typeof vi.fn>
   clearRuntimePaneTitle: ReturnType<typeof vi.fn>
   setTabLayout: ReturnType<typeof vi.fn>
@@ -135,6 +136,7 @@ describe('terminal-parked-tab-watchers', () => {
       tabsByWorktree: {},
       terminalLayoutsByTabId: {},
       runtimePaneTitlesByTabId: {},
+      settings: null,
       clearTabLaunchAgent: vi.fn(),
       clearRuntimePaneTitle: vi.fn(),
       setTabLayout: vi.fn(),
@@ -204,10 +206,9 @@ describe('terminal-parked-tab-watchers', () => {
     expect(startedWatchers[0].options).toMatchObject({ ptyId: SECOND_PTY_ID })
   })
 
-  it('never starts watchers for remote-runtime or SSH PTYs', () => {
+  it('never starts watchers for remote-runtime PTYs', () => {
     capturePanes([
-      { ptyId: 'remote:env-1@@terminal-1', paneId: 1, leafId: LEAF_ID, drivesTabTitle: true },
-      { ptyId: 'ssh:conn-1@@pty-1', paneId: 2, leafId: SECOND_LEAF_ID, drivesTabTitle: false }
+      { ptyId: 'remote:env-1@@terminal-1', paneId: 1, leafId: LEAF_ID, drivesTabTitle: true }
     ])
     syncParked({ tabs: [{ id: TAB_ID, ptyId: null }] })
 
@@ -217,6 +218,22 @@ describe('terminal-parked-tab-watchers', () => {
     expect(getParkedTerminalWatcherTabIds()).toEqual([TAB_ID])
   })
 
+  it('starts watchers for SSH PTYs (C1 SSH parking, default on)', () => {
+    capturePanes([{ ptyId: 'ssh:conn-1@@pty-1', paneId: 1, leafId: LEAF_ID, drivesTabTitle: true }])
+    syncParked({ tabs: [{ id: TAB_ID, ptyId: 'ssh:conn-1@@pty-1' }] })
+
+    expect(startParkedTerminalByteWatcher).toHaveBeenCalledTimes(1)
+    expect(startedWatchers[0].options).toMatchObject({ ptyId: 'ssh:conn-1@@pty-1' })
+  })
+
+  it('never starts watchers for SSH PTYs when terminalSshViewParking is off', () => {
+    mockStoreState.settings = { terminalSshViewParking: false }
+    capturePanes([{ ptyId: 'ssh:conn-1@@pty-1', paneId: 1, leafId: LEAF_ID, drivesTabTitle: true }])
+    syncParked({ tabs: [{ id: TAB_ID, ptyId: null }] })
+
+    expect(startParkedTerminalByteWatcher).not.toHaveBeenCalled()
+  })
+
   it('keeps existing watchers across repeated syncs of the same parked state', () => {
     capturePanes([{ ptyId: PTY_ID, paneId: 1, leafId: LEAF_ID, drivesTabTitle: true }])
     syncParked()
@@ -702,6 +719,28 @@ describe('terminal-parked-tab-watchers', () => {
     })
 
     it('rejects a capture containing a PTY without snapshot backing', () => {
+      capturePanes([
+        { ptyId: PTY_ID, paneId: 1, leafId: LEAF_ID, drivesTabTitle: true },
+        // Why foreign-worktree id: minted under another worktree, never restorable.
+        { ptyId: 'other::wt@@session-9', paneId: 2, leafId: SECOND_LEAF_ID, drivesTabTitle: false }
+      ])
+      expect(canWatcherCoverParkedTerminalTab(WORKTREE_ID, { id: TAB_ID, ptyId: PTY_ID })).toBe(
+        false
+      )
+    })
+
+    it('accepts an SSH PTY under the default C1 SSH-parking policy', () => {
+      capturePanes([
+        { ptyId: PTY_ID, paneId: 1, leafId: LEAF_ID, drivesTabTitle: true },
+        { ptyId: 'ssh:conn-1@@pty-1', paneId: 2, leafId: SECOND_LEAF_ID, drivesTabTitle: false }
+      ])
+      expect(canWatcherCoverParkedTerminalTab(WORKTREE_ID, { id: TAB_ID, ptyId: PTY_ID })).toBe(
+        true
+      )
+    })
+
+    it('rejects an SSH PTY when terminalSshViewParking is off', () => {
+      mockStoreState.settings = { terminalSshViewParking: false }
       capturePanes([
         { ptyId: PTY_ID, paneId: 1, leafId: LEAF_ID, drivesTabTitle: true },
         { ptyId: 'ssh:conn-1@@pty-1', paneId: 2, leafId: SECOND_LEAF_ID, drivesTabTitle: false }
diff --git a/src/renderer/src/components/terminal-pane/terminal-parked-tab-watchers.ts b/src/renderer/src/components/terminal-pane/terminal-parked-tab-watchers.ts
index 4328f5db980..bdde930c6b2 100644
--- a/src/renderer/src/components/terminal-pane/terminal-parked-tab-watchers.ts
+++ b/src/renderer/src/components/terminal-pane/terminal-parked-tab-watchers.ts
@@ -17,7 +17,10 @@ import { detachTerminalLayoutLeaf } from './terminal-layout-leaf-detach'
 import { subscribeToPtyExit } from './pty-dispatcher'
 import { discardPreHandlerPtyState } from './pty-pre-handler-buffer'
 import { startParkedTerminalByteWatcher } from './parked-terminal-byte-watcher'
-import { isSnapshotBackedTerminalPty } from './terminal-hidden-view-parking'
+import {
+  isParkRestorableTerminalPty,
+  type TerminalParkRestorePolicy
+} from './terminal-hidden-view-parking'
 import {
   resolveTabTitleAfterPaneClose,
   shouldClearLaunchAgentForClosedPane
@@ -94,9 +97,18 @@ function resolveParkedTerminalPaneCandidates(
   return capturedIsCurrent ? captured.panes : fallbackParkedPaneCandidates(tab, state)
 }
 
+// Why: fact-mode watchers work for any pty whose bytes transit local main —
+// SSH included — so watcher coverage follows the park-restore policy, not the
+// stricter daemon-snapshot predicate.
+function parkRestorePolicyFromState(state: {
+  settings: { terminalSshViewParking?: boolean } | null
+}): TerminalParkRestorePolicy {
+  return { sshParkingEnabled: state.settings?.terminalSshViewParking !== false }
+}
+
 /**
  * Whether parked byte watchers can fully cover this tab's PTYs (every candidate
- * has a snapshot-backed PTY on a valid leaf). Hosts must refuse to park a tab
+ * has a park-restorable PTY on a valid leaf). Hosts must refuse to park a tab
  * that fails this check, or bell/title/completion side effects silently drop.
  */
 export function canWatcherCoverParkedTerminalTab(
@@ -105,14 +117,16 @@ export function canWatcherCoverParkedTerminalTab(
   // Why: cold activation needs stronger snapshot support (view never mounted); ordinary parking can reattach a mounted view.
   isPtyEligible: ParkedTerminalPtyEligibility = allowSnapshotBackedPty
 ): boolean {
-  const panes = resolveParkedTerminalPaneCandidates(tab, useAppStore.getState())
+  const state = useAppStore.getState()
+  const panes = resolveParkedTerminalPaneCandidates(tab, state)
+  const restorePolicy = parkRestorePolicyFromState(state)
   return (
     panes.length > 0 &&
     panes.every(
       (pane) =>
         pane.ptyId !== null &&
         isTerminalLeafId(pane.leafId) &&
-        isSnapshotBackedTerminalPty(pane.ptyId, worktreeId) &&
+        isParkRestorableTerminalPty(pane.ptyId, worktreeId, restorePolicy) &&
         isPtyEligible(pane.ptyId)
     )
   )
@@ -125,6 +139,7 @@ function startParkedTabWatchers(
 ): void {
   const state = useAppStore.getState()
   const panes = resolveParkedTerminalPaneCandidates(tab, state)
+  const restorePolicy = parkRestorePolicyFromState(state)
   const disposersByPtyId = new Map<string, () => void>()
   const paneIdByPtyId = new Map<string, number>()
   for (const pane of panes) {
@@ -134,7 +149,7 @@ function startParkedTabWatchers(
       !ptyId ||
       disposersByPtyId.has(ptyId) ||
       !isTerminalLeafId(pane.leafId) ||
-      !isSnapshotBackedTerminalPty(ptyId, worktreeId)
+      !isParkRestorableTerminalPty(ptyId, worktreeId, restorePolicy)
     ) {
       continue
     }
diff --git a/src/renderer/src/components/terminal-pane/use-terminal-tab-cold-parking.ts b/src/renderer/src/components/terminal-pane/use-terminal-tab-cold-parking.ts
index 28773698d9b..58f865097c5 100644
--- a/src/renderer/src/components/terminal-pane/use-terminal-tab-cold-parking.ts
+++ b/src/renderer/src/components/terminal-pane/use-terminal-tab-cold-parking.ts
@@ -78,6 +78,9 @@ export function useTerminalTabColdParking(args: {
   const terminalParkingEnabled = useAppStore(
     (state) => state.settings?.terminalHiddenViewParking !== false
   )
+  const terminalSshParkingEnabled = useAppStore(
+    (state) => state.settings?.terminalSshViewParking !== false
+  )
   const terminalTabHiddenSinceRef = useRef(new Map<string, number>())
   const terminalTabParkingTimersRef = useRef(new Map<string, number>())
   const parkVerdictRecordsRef = useRef(new Map<string, ParkVerdictFlipRecord>())
@@ -147,6 +150,7 @@ export function useTerminalTabColdParking(args: {
       pendingStartupByTabId,
       parkingEnabled: terminalParkingEnabled,
       nowMs,
+      restorePolicy: { sshParkingEnabled: terminalSshParkingEnabled },
       ...overrides
     })
     // Why: a tab the byte watchers cannot cover (no capture, no layout
@@ -196,6 +200,7 @@ export function useTerminalTabColdParking(args: {
     pendingStartupByTabId,
     shouldMeasureHiddenWorktree,
     terminalParkingEnabled,
+    terminalSshParkingEnabled,
     terminalTabParkingRevision,
     terminalTabs,
     worktreeId
diff --git a/src/shared/types.ts b/src/shared/types.ts
index ec27f126711..4a47488cd15 100644
--- a/src/shared/types.ts
+++ b/src/shared/types.ts
@@ -2848,6 +2848,8 @@ export type GlobalSettings = {
   terminalScopeHistoryByWorktree: boolean
   /** Kill switch for hidden terminal view parking: unmount long-hidden panes while a pane-less watcher keeps PTY side effects alive. */
   terminalHiddenViewParking?: boolean
+  /** Kill switch for SSH terminal parking (C1): SSH panes park like local ones; reveal restores from main's headless model, falling back to relay replay. */
+  terminalSshViewParking?: boolean
   /** Kill switch for main-process PTY side-effect authority; on (default) = title/bell/agent facts via pty:sideEffect channel, not renderer byte parsing. */
   terminalMainSideEffectAuthority?: boolean
   /** Kill switch for main's hidden-delivery gate (Phase 4): drops PTY bytes to hidden views after model ingestion; requires terminalMainSideEffectAuthority. */