diff --git a/lib/host.js b/lib/host.js
index 2912ef8..3219782 100644
--- a/lib/host.js
+++ b/lib/host.js
@@ -6,7 +6,7 @@
 import { randomUUID } from 'node:crypto'
 import { mkdir } from 'node:fs/promises'
 import { homedir } from 'node:os'
-import { basename, join } from 'node:path'
+import { basename, dirname, join } from 'node:path'
 import { claimOccurrence, executeClaimedRun, extractAssistantText, interruptActiveRuns, publicJob, settleRun, TITLE_PREFIX } from './fire.js'
 import { assertDeliveryAllowedForIdentity, deliverRunToIm, mergeDeliveryMention, mirrorRunToSession, normalizeDelivery, normalizeOrigin } from './delivery.js'
 import { apiError, resolveLocale } from './i18n.js'
@@ -190,6 +190,9 @@ function allowsForeignJobCwd(identity, getUdsAuth, ownerEmpNo) {
     const live = uds.resolveIdentityForEmpNo(empNo)
     if (live && canViewAllJobs(live)) return true
   }
+  if (typeof uds.getRole === 'function' && isElevatedCronRole(uds.getRole(empNo))) return true
+  // Match dsh-acl: local fallback cookie user is always elevated.
+  if (empNo === 'administrator') return true
   return false
 }
 
@@ -205,6 +208,7 @@ function enrichIdentity(identity, getUdsAuth) {
         || identity.permissions?.canViewAllSessions
         || isElevatedCronRole(live.role)
         || isElevatedCronRole(identity.role)
+        || identity.empNo === 'administrator'
       )
       return {
         ...identity,
@@ -224,7 +228,7 @@ function enrichIdentity(identity, getUdsAuth) {
       }
     }
   }
-  if (isElevatedCronRole(identity.role)) {
+  if (isElevatedCronRole(identity.role) || identity.empNo === 'administrator') {
     return {
       ...identity,
       permissions: {
@@ -237,7 +241,25 @@ function enrichIdentity(identity, getUdsAuth) {
   return identity
 }
 
-function sanitizeJobCwd(cwd, identity, getUdsAuth, { forOwnerEmpNo } = {}) {
+export function normalizeFsPath(value) {
+  return String(value || '').trim().replace(/\\/g, '/').replace(/\/+$/, '')
+}
+
+export function isPathInside(candidate, root) {
+  const cand = normalizeFsPath(candidate).toLowerCase()
+  const base = normalizeFsPath(root).toLowerCase()
+  if (!cand || !base) return false
+  return cand === base || cand.startsWith(`${base}/`)
+}
+
+/**
+ * Decide the durable cwd for a job.
+ * - Elevated owners: any explicit cwd
+ * - Owner tree (isUserPath): keep
+ * - Inside provision forest but not owner tree: clamp to ownerPath
+ * - Outside forest (shared trees like D:\\code\\gpt): keep when allowExternalCwd
+ */
+function resolveSanitizedCwd(cwd, identity, getUdsAuth, { forOwnerEmpNo, allowExternalCwd = true } = {}) {
   const raw = typeof cwd === 'string' ? cwd.trim() : ''
   const uds = typeof getUdsAuth === 'function' ? getUdsAuth() : null
   const owner = forOwnerEmpNo || identity?.empNo
@@ -246,11 +268,36 @@ function sanitizeJobCwd(cwd, identity, getUdsAuth, { forOwnerEmpNo } = {}) {
     : null
   if (!raw) return ownerPath || ''
   if (allowsForeignJobCwd(identity, getUdsAuth, owner)) return raw
-  // Without uds-auth, keep the caller cwd (tools may stamp owner from path only).
   if (!uds) return raw
   if (owner && uds?.isUserPath?.(owner, raw)) return raw
-  if (ownerPath) return ownerPath
-  return ''
+  if (ownerPath) {
+    const forest = dirname(ownerPath)
+    if (forest && isPathInside(raw, forest)) return ownerPath
+    if (allowExternalCwd !== false) return raw
+    return ownerPath
+  }
+  return allowExternalCwd !== false ? raw : ''
+}
+
+function sanitizeJobCwd(cwd, identity, getUdsAuth, opts = {}) {
+  const raw = typeof cwd === 'string' ? cwd.trim() : ''
+  const effective = resolveSanitizedCwd(cwd, identity, getUdsAuth, opts)
+  if (
+    raw
+    && normalizeFsPath(raw).toLowerCase() !== normalizeFsPath(effective).toLowerCase()
+    && opts.rejectClamp
+  ) {
+    const error = new Error(
+      `cwd "${raw}" is not allowed for this user (effective "${effective || '(empty)'}"). `
+      + 'Use a path under your provisioned workspace, a shared tree outside workspaceRoot '
+      + '(when allowExternalCwd is on), or a super_admin / fallback_admin account.',
+    )
+    error.code = 'CWD_FORBIDDEN'
+    error.requestedCwd = raw
+    error.effectiveCwd = effective
+    throw error
+  }
+  return effective
 }
 
 function isTrustedApiRequest(request) {
@@ -424,7 +471,14 @@ export function createHostService(options = {}) {
         safeInput.delivery = delivery
         safeInput.ownerEmpNo = ownerIdentity.empNo
         safeInput.ownerDisplayName = ownerIdentity.displayName || ownerIdentity.empNo
-        safeInput.cwd = sanitizeJobCwd(safeInput.cwd, ownerIdentity, getUdsAuth, { forOwnerEmpNo: ownerIdentity.empNo })
+        const snap = await snapshot()
+        const allowExternalCwd = snap?.settings?.allowExternalCwd !== false
+        const requestedCwd = String(safeInput.cwd || '').trim()
+        safeInput.cwd = sanitizeJobCwd(safeInput.cwd, ownerIdentity, getUdsAuth, {
+          forOwnerEmpNo: ownerIdentity.empNo,
+          allowExternalCwd,
+          rejectClamp: !!requestedCwd,
+        })
       } else if (safeInput.ownerEmpNo) {
         safeInput.ownerEmpNo = normalizeOwnerEmpNo(safeInput.ownerEmpNo)
       } else {
@@ -482,11 +536,17 @@ export function createHostService(options = {}) {
           nextInput.delivery = mergeDeliveryMention(job.delivery, patch.delivery)
           assertDeliveryAllowedForIdentity(nextInput.delivery, enriched)
         }
+        const allowExternalCwd = current.settings?.allowExternalCwd !== false
+        const requestedCwd = patch.cwd !== undefined ? String(patch.cwd || '').trim() : ''
         nextInput.cwd = sanitizeJobCwd(
           nextInput.cwd,
           enriched,
           getUdsAuth,
-          { forOwnerEmpNo: nextInput.ownerEmpNo },
+          {
+            forOwnerEmpNo: nextInput.ownerEmpNo,
+            allowExternalCwd,
+            rejectClamp: !!requestedCwd,
+          },
         )
       }
       if (patch.ownerEmpNo !== undefined && canViewAllJobs(enrichIdentity(patch._identity, getUdsAuth))) {
@@ -1089,7 +1149,8 @@ export function ownerAllowsForeignCwd(ownerEmpNo, uds) {
 
 /**
  * Placement order:
- * 1. Explicit job.cwd (kept for super_admin owners; clamped to owner tree for users)
+ * 1. Explicit job.cwd (kept for elevated owners; shared trees outside forest kept when allowExternalCwd;
+ *    clamped to owner tree only when inside provision forest but not the owner's path)
  * 2. Owner provisioned path (multi-user)
  * 3. Recent registry workspace — only standalone / non-IM unassigned
  * 4. Shared ops-cron fallback
@@ -1105,12 +1166,19 @@ export function resolveSessionPlacement(ctx, job = {}, deps = {}) {
     ? uds.getProvisionedWorkspacePath(ownerEmpNo)
     : null
   const imOrigin = normalizeOrigin(job?.origin)?.kind === 'im'
+  const allowExternalCwd = deps.allowExternalCwd !== false
 
   let requested = String(job?.cwd || '').trim()
   if (requested && ownerEmpNo && !ownerEmpNo.startsWith('__') && uds?.isUserPath) {
     const allowForeign = ownerAllowsForeignCwd(ownerEmpNo, uds)
     if (!uds.isUserPath(ownerEmpNo, requested) && !allowForeign && ownerPath) {
-      requested = ownerPath
+      const forest = dirname(ownerPath)
+      if (forest && isPathInside(requested, forest)) {
+        requested = ownerPath
+      } else if (allowExternalCwd === false) {
+        requested = ownerPath
+      }
+      // else: outside forest → keep requested (shared business cwd)
     }
   }
   if (requested) return { cwd: requested, workspace: match(requested), missingCwd: false }
@@ -1390,7 +1458,7 @@ export function makeLiveSessionPort(ctx) {
       }
       const sessionId = randomUUID()
       const udsAuth = tryGet(ctx, 'udsAuth')
-      const placement = resolveSessionPlacement(ctx, job, { udsAuth })
+      const placement = resolveSessionPlacement(ctx, job, { udsAuth, allowExternalCwd: true })
       if (placement.missingCwd) {
         const error = new Error('IM scheduled job has no cwd; recreate it from the channel chat')
         error.code = 'IM_JOB_MISSING_CWD'
diff --git a/lib/index.js b/lib/index.js
index 26774b9..db178ab 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -115,6 +115,7 @@ export const Config = Schema.object({
   historyLimit: Schema.number().min(10).max(2000).step(1).default(DEFAULT_SETTINGS.historyLimit),
   overlapPolicy: Schema.union(['skip']).default(DEFAULT_SETTINGS.overlapPolicy),
   misfirePolicy: Schema.union(['skip']).default(DEFAULT_SETTINGS.misfirePolicy),
+  allowExternalCwd: Schema.boolean().default(DEFAULT_SETTINGS.allowExternalCwd),
 })
 
 function resolveConfig(config = {}) {
@@ -126,6 +127,7 @@ function resolveConfig(config = {}) {
     historyLimit: Number(config.historyLimit) > 0 ? Number(config.historyLimit) : DEFAULT_SETTINGS.historyLimit,
     overlapPolicy: config.overlapPolicy === 'skip' ? 'skip' : DEFAULT_SETTINGS.overlapPolicy,
     misfirePolicy: config.misfirePolicy === 'skip' ? 'skip' : DEFAULT_SETTINGS.misfirePolicy,
+    allowExternalCwd: config.allowExternalCwd !== false,
   }
 }
 
diff --git a/lib/store.js b/lib/store.js
index bf20a7a..88f7ef4 100644
--- a/lib/store.js
+++ b/lib/store.js
@@ -22,6 +22,12 @@ export const DEFAULT_SETTINGS = {
   historyLimit: 200,
   overlapPolicy: 'skip',
   misfirePolicy: 'skip',
+  /**
+   * When true (default), an explicit job cwd that lies OUTSIDE the multi-tenant
+   * provision forest (workspaceRoot/<empNo>) is kept — e.g. D:\\code\\gpt.
+   * Paths under the forest but not the owner's tree are still clamped.
+   */
+  allowExternalCwd: true,
 }
 
 export function emptyState() {
@@ -37,6 +43,9 @@ export function emptyState() {
 export function normalizeSettings(input = {}, fallback = DEFAULT_SETTINGS) {
   const src = input && typeof input === 'object' ? input : {}
   const historyLimit = Number(src.historyLimit)
+  const allowExternalCwd = src.allowExternalCwd !== undefined
+    ? src.allowExternalCwd !== false
+    : fallback.allowExternalCwd !== false
   return {
     enabled: src.enabled !== false,
     timezone: typeof src.timezone === 'string' && src.timezone.trim()
@@ -47,6 +56,7 @@ export function normalizeSettings(input = {}, fallback = DEFAULT_SETTINGS) {
       : fallback.historyLimit,
     overlapPolicy: src.overlapPolicy === 'skip' ? 'skip' : fallback.overlapPolicy,
     misfirePolicy: src.misfirePolicy === 'skip' ? 'skip' : fallback.misfirePolicy,
+    allowExternalCwd,
   }
 }
 
diff --git a/package.json b/package.json
index 4dddbc3..3d25487 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "dsh-ops-cron",
   "description": "Scheduled tasks for DeepSeek Harness: Agent cron_* tools + sidebar 定时任务, with DSH or WhatsApp/IM delivery per job.",
-  "version": "0.1.14",
+  "version": "0.1.15",
   "private": false,
   "type": "module",
   "repository": {
diff --git a/test/host.test.js b/test/host.test.js
index e364ad8..98e8642 100644
--- a/test/host.test.js
+++ b/test/host.test.js
@@ -603,10 +603,16 @@ test('resolveSessionPlacement keeps foreign cwd for super_admin owner under stri
   assert.equal(kept.cwd, 'D:/code/gpt')
 
   const clamped = resolveSessionPlacement(ctx, {
-    cwd: 'D:/code/gpt',
+    cwd: '/tmp/user-workspaces/peer/x',
     ownerEmpNo: 'tester',
   }, { udsAuth: uds })
   assert.equal(clamped.cwd, '/tmp/user-workspaces/tester')
+
+  const external = resolveSessionPlacement(ctx, {
+    cwd: 'D:/code/gpt',
+    ownerEmpNo: 'tester',
+  }, { udsAuth: uds })
+  assert.equal(external.cwd, 'D:/code/gpt')
 })
 
 test('resolveSessionPlacement prefers owner provisioned path over recent workspace when cwd empty', () => {
@@ -668,7 +674,18 @@ test('super_admin createJob keeps explicit foreign cwd; normal user is clamped',
     cwd: 'D:/code/gpt',
     schedule: { kind: 'cron', expr: '0 3 * * *', timezone: 'Asia/Shanghai' },
   }, userId)
-  assert.equal(userJob.cwd, '/tmp/user-workspaces/tester')
+  // Shared tree outside provision forest is kept (allowExternalCwd default).
+  assert.equal(userJob.cwd, 'D:/code/gpt')
+
+  await assert.rejects(
+    () => service.createJob({
+      name: 'steal',
+      prompt: 'no',
+      cwd: '/tmp/user-workspaces/peer/secret',
+      schedule: { kind: 'cron', expr: '0 4 * * *', timezone: 'Asia/Shanghai' },
+    }, userId),
+    (err) => err && err.code === 'CWD_FORBIDDEN',
+  )
 })
 
 test('createJob elevates via live resolveIdentityForEmpNo when caller permissions are empty', async (t) => {