diff --git a/src/renderer/src/components/NewWorkspaceComposerModal.tsx b/src/renderer/src/components/NewWorkspaceComposerModal.tsx
index 1631d39a355..aa46a10f7bf 100644
--- a/src/renderer/src/components/NewWorkspaceComposerModal.tsx
+++ b/src/renderer/src/components/NewWorkspaceComposerModal.tsx
@@ -1,4 +1,4 @@
-import React, { Suspense, useCallback, useEffect, useMemo, useState } from 'react'
+import React, { Suspense, useCallback, useEffect, useMemo, useRef, useState } from 'react'
 import { useAppStore } from '@/store'
 import { lazyWithRetry } from '@/lib/lazy-with-retry'
 import {
@@ -61,42 +61,29 @@ export default function NewWorkspaceComposerModal(): React.JSX.Element | null {
   const modalData = useAppStore((s) => s.modalData as ComposerModalData | undefined)
   const closeModal = useAppStore((s) => s.closeModal)
 
-  // Why: Dialog open-state transitions must be driven by the store, not a
-  // mirror useState, so palette/open-modal calls feel instantaneous and the
-  // modal doesn't linger with stale data after close.
-  const handleOpenChange = useCallback(
-    (open: boolean) => {
-      if (!open) {
-        closeModal()
-      }
-    },
-    [closeModal]
-  )
-
   if (!visible) {
     return null
   }
 
-  return (
-    <ComposerModalBody
-      modalData={modalData ?? {}}
-      onClose={closeModal}
-      onOpenChange={handleOpenChange}
-    />
-  )
+  return <ComposerModalBody modalData={modalData ?? {}} onClose={closeModal} />
 }
 
 function ComposerModalBody({
   modalData,
-  onClose,
-  onOpenChange
+  onClose
 }: {
   modalData: ComposerModalData
   onClose: () => void
-  onOpenChange: (open: boolean) => void
 }): React.JSX.Element {
+  const submitCancelledRef = useRef(false)
+  const handleDismiss = useCallback(() => {
+    submitCancelledRef.current = true
+    onClose()
+  }, [onClose])
+  const isSubmissionCancelled = useCallback(() => submitCancelledRef.current, [])
+
   return (
-    <Dialog open onOpenChange={onOpenChange}>
+    <Dialog open onOpenChange={(open) => !open && handleDismiss()}>
       <DialogContent
         className="flex max-h-[calc(100vh-2rem)] flex-col overflow-hidden sm:max-w-lg"
         onOpenAutoFocus={(event) => {
@@ -109,7 +96,13 @@ function ComposerModalBody({
           getWorkspaceComposerInitialFocusTarget(content)?.focus({ preventScroll: true })
         }}
       >
-        <QuickTabBody modalData={modalData} onClose={onClose} active />
+        <QuickTabBody
+          modalData={modalData}
+          onClose={onClose}
+          onDismiss={handleDismiss}
+          isSubmissionCancelled={isSubmissionCancelled}
+          active
+        />
       </DialogContent>
     </Dialog>
   )
@@ -118,10 +111,14 @@ function ComposerModalBody({
 function QuickTabBody({
   modalData,
   onClose,
+  onDismiss,
+  isSubmissionCancelled,
   active
 }: {
   modalData: ComposerModalData
   onClose: () => void
+  onDismiss: () => void
+  isSubmissionCancelled: () => boolean
   active: boolean
 }): React.JSX.Element {
   const settings = useAppStore((s) => s.settings)
@@ -148,6 +145,7 @@ function QuickTabBody({
     ...(modalData.initialBaseBranch ? { initialBaseBranch: modalData.initialBaseBranch } : {}),
     persistDraft: false,
     onCreated: onClose,
+    isSubmissionCancelled,
     ...(modalData.telemetrySource ? { telemetrySource: modalData.telemetrySource } : {}),
     enableIssueAutomation: modalData.enableIssueAutomation === true,
     createGateMode: 'quick'
@@ -271,7 +269,7 @@ function QuickTabBody({
           return
         }
         event.preventDefault()
-        onClose()
+        onDismiss()
         return
       }
 
@@ -291,7 +289,7 @@ function QuickTabBody({
     }
     window.addEventListener('keydown', onKeyDown, { capture: true })
     return () => window.removeEventListener('keydown', onKeyDown, { capture: true })
-  }, [active, composerRef, createDisabled, handleCreate, nestedDialogOpen, onClose])
+  }, [active, composerRef, createDisabled, handleCreate, nestedDialogOpen, onDismiss])
 
   return (
     <>
diff --git a/src/renderer/src/components/task-page-workspace-composer-boundary.test.ts b/src/renderer/src/components/task-page-workspace-composer-boundary.test.ts
index 268b6f90c08..0f74cc3a407 100644
--- a/src/renderer/src/components/task-page-workspace-composer-boundary.test.ts
+++ b/src/renderer/src/components/task-page-workspace-composer-boundary.test.ts
@@ -52,9 +52,9 @@ describe('TaskPage workspace creation source boundaries', () => {
       'const submitQuick = useCallback(',
       'const createGateInput = {'
     )
-    expect(quickSubmit).toContain(
-      "ensureHooksConfirmed(useAppStore.getState(), repoId, 'issueCommand')"
-    )
+    expect(quickSubmit).toContain('readAndConfirmRuntimeIssueCommand(')
+    expect(quickSubmit).toContain('selectedRepoExecutionHostId')
+    expect(quickSubmit).toContain('isSubmissionCancelled')
     expect(quickSubmit).toContain('...(issueCommand ? { issueCommand } : {})')
   })
 
diff --git a/src/renderer/src/hooks/useComposerState-host-context-boundaries.test.ts b/src/renderer/src/hooks/useComposerState-host-context-boundaries.test.ts
index 1114bb00828..13757df7096 100644
--- a/src/renderer/src/hooks/useComposerState-host-context-boundaries.test.ts
+++ b/src/renderer/src/hooks/useComposerState-host-context-boundaries.test.ts
@@ -423,13 +423,13 @@ describe('useComposerState host-context boundaries', () => {
       'const submit = useCallback',
       'const submitQuick = useCallback'
     )
-    const fullPolicySave = fullSubmit.indexOf('await persistSetupAgentStartupPolicy()')
+    const fullPolicySave = fullSubmit.indexOf('persistSetupAgentStartupPolicy()')
     const fullCreate = fullSubmit.indexOf('const result = await createWorktree(')
     expect(fullPolicySave).toBeGreaterThanOrEqual(0)
     expect(fullCreate).toBeGreaterThan(fullPolicySave)
 
     const quickSubmit = sourceBetween(HOOK_SOURCE, 'const submitQuick = useCallback', 'return {')
-    const quickPolicySave = quickSubmit.indexOf('await persistSetupAgentStartupPolicy()')
+    const quickPolicySave = quickSubmit.indexOf('persistSetupAgentStartupPolicy()')
     const quickCreate = quickSubmit.indexOf('const request: WorktreeCreationRequest = {')
     expect(quickPolicySave).toBeGreaterThanOrEqual(0)
     expect(quickCreate).toBeGreaterThan(quickPolicySave)
@@ -464,8 +464,9 @@ describe('useComposerState host-context boundaries', () => {
     )
     expect(section).toContain('canResolveFolderSmartGitHubSubmit')
     expect(section).toContain('hasFolderSourceRepos: folderSourceRepos.length > 0')
-    expect(section).toContain('? await resolvePendingSmartGitHubSubmit()')
-    expect(section).toContain(': null')
+    expect(section).toContain('? resolvePendingSmartGitHubSubmit()')
+    expect(section).toContain("Promise.resolve({ kind: 'none' } as const)")
+    expect(section).toContain('isSubmissionCancelled')
     expect(section).not.toContain('folderSourceRequiresConnection')
   })
 
diff --git a/src/renderer/src/hooks/useComposerState-host-retarget.test.ts b/src/renderer/src/hooks/useComposerState-host-retarget.test.ts
new file mode 100644
index 00000000000..7e2c35cb75d
--- /dev/null
+++ b/src/renderer/src/hooks/useComposerState-host-retarget.test.ts
@@ -0,0 +1,62 @@
+import { readFileSync } from 'node:fs'
+import { join } from 'node:path'
+import { describe, expect, it } from 'vitest'
+import { retargetGitHubPrStartPointSelection } from './useComposerState'
+
+const HOOK_SOURCE = readFileSync(join(__dirname, 'useComposerState.ts'), 'utf8')
+
+function sourceBetween(source: string, startPattern: string, endPattern: string): string {
+  const start = source.indexOf(startPattern)
+  expect(start).toBeGreaterThanOrEqual(0)
+  const end = source.indexOf(endPattern, start + startPattern.length)
+  expect(end).toBeGreaterThan(start)
+  return source.slice(start, end)
+}
+
+describe('useComposerState host retarget', () => {
+  it('re-resolves a seeded PR after switching its run host', () => {
+    const item = {
+      id: 'pr-42',
+      type: 'pr' as const,
+      number: 42,
+      title: 'Fix PR workspace creation',
+      state: 'open' as const,
+      url: 'https://github.com/stablyai/orca/pull/42',
+      labels: [],
+      updatedAt: '2026-08-04T00:00:00.000Z',
+      author: 'octocat',
+      repoId: 'repo-local'
+    }
+    const selection = {
+      repoId: 'repo-local',
+      item,
+      resolved: {
+        baseBranch: 'local-head',
+        compareBaseRef: 'origin/main'
+      }
+    }
+
+    expect(retargetGitHubPrStartPointSelection(selection, 'repo-ssh')).toEqual({
+      repoId: 'repo-ssh',
+      item
+    })
+  })
+
+  it('retains an explicit host setup when duplicate repos share an id', () => {
+    const targetSection = sourceBetween(
+      HOOK_SOURCE,
+      'const selectedWorkspaceTarget = useMemo',
+      'const selectedRepo ='
+    )
+    expect(targetSection).toContain('projectHostSetupId: selectedProjectHostSetupOverrideId')
+
+    const switchSection = sourceBetween(
+      HOOK_SOURCE,
+      'const handleProjectHostSetupChange',
+      'const handleProjectChange'
+    )
+    expect(switchSection).toContain('setSelectedProjectHostSetupOverrideId(option.id)')
+    expect(switchSection).toContain('preserveStartFrom: true')
+    expect(switchSection).toContain('forceResetStartFrom: true')
+  })
+})
diff --git a/src/renderer/src/hooks/useComposerState.ts b/src/renderer/src/hooks/useComposerState.ts
index 64ea9266707..d603b71bded 100644
--- a/src/renderer/src/hooks/useComposerState.ts
+++ b/src/renderer/src/hooks/useComposerState.ts
@@ -15,7 +15,10 @@ import {
 } from '@/lib/github-links'
 import { activateAndRevealWorktree, type AgentStartedTelemetry } from '@/lib/worktree-activation'
 import { runBackgroundWorktreeCreation } from '@/lib/worktree-creation-flow'
-import type { WorktreeCreationRequest } from '@/lib/pending-worktree-creation'
+import {
+  findPendingLinkedWorkItemCreationId,
+  type WorktreeCreationRequest
+} from '@/lib/pending-worktree-creation'
 import { buildAgentDraftLaunchPlan, buildAgentStartupPlan } from '@/lib/tui-agent-startup'
 import { filterEnabledTuiAgents, isTuiAgentEnabled } from '../../../shared/tui-agent-selection'
 import { repoIsRemote } from '../../../shared/agent-launch-remote'
@@ -168,14 +171,19 @@ import {
   shouldPreserveWorkspaceSourceOnRepoChange
 } from '../../../shared/new-workspace/workspace-source'
 import { CONTEXTUAL_TOUR_ENABLE_AUTO_WORKSPACE_NAME_EVENT } from '@/components/contextual-tours/contextual-tour-composer-events'
-import { ensureHooksConfirmed } from '@/lib/ensure-hooks-confirmed'
+import {
+  confirmRuntimeIssueCommandRead,
+  ensureHooksConfirmed,
+  readAndConfirmRuntimeIssueCommand
+} from '@/lib/ensure-hooks-confirmed'
 import { normalizeSparseDirectoryLines, sparseDirectoriesMatch } from '@/lib/sparse-paths'
 import { joinPath } from '@/lib/path'
 import { importExternalPathsToRuntime } from '@/runtime/runtime-file-client'
 import {
   checkRuntimeHooks,
   readRuntimeIssueCommand,
-  type HookCheckResult
+  type HookCheckResult,
+  type IssueCommandReadResult
 } from '@/runtime/runtime-hooks-client'
 import {
   formatWorkspaceCreateError,
@@ -198,10 +206,10 @@ import {
 import { translate } from '@/i18n/i18n'
 import { isWorkspaceLinkedItemSourceContextMatch } from '../../../shared/workspace-linked-item-source-context'
 import { resolveJiraSourceHostId } from '@/lib/jira-source-host'
-import {
-  buildTrustedComposerIssueCommand,
-  shouldPrepareComposerIssueCommand
-} from '@/lib/composer-issue-command'
+import { buildTrustedComposerIssueCommand } from '@/lib/composer-issue-command'
+import { settleComposerSubmit } from '@/lib/composer-submit-cancellation'
+
+const NEVER_CANCEL_COMPOSER_SUBMIT = (): boolean => false
 
 export function canResolveFolderSmartGitHubSubmit({
   hasFolderSourceRepos
@@ -244,6 +252,7 @@ export type UseComposerStateOptions = {
   persistDraft: boolean
   /** Invoked after a successful createWorktree; the caller usually closes its surface (palette modal, full page, etc.). */
   onCreated?: () => void
+  isSubmissionCancelled?: () => boolean
   /** External repoId override — used by TaskPage's work-item list, which drives repo selection from the page header, not the card. */
   repoIdOverride?: string
   onRepoIdOverrideChange?: (value: string) => void
@@ -545,6 +554,13 @@ export function getInitialGitHubPrStartPointSelection({
   }
 }
 
+export function retargetGitHubPrStartPointSelection(
+  selection: SmartGitHubPrStartPointSelection | null,
+  repoId: string
+): SmartGitHubPrStartPointSelection | null {
+  return selection ? { repoId, item: selection.item } : null
+}
+
 export function getMatchingLinkedTaskSourceContext(
   item: LinkedWorkItemSummary | null | undefined,
   context: TaskSourceContext | null | undefined
@@ -586,6 +602,7 @@ export function useComposerState(options: UseComposerStateOptions): UseComposerS
     initialBaseBranch,
     persistDraft,
     onCreated,
+    isSubmissionCancelled = NEVER_CANCEL_COMPOSER_SUBMIT,
     repoIdOverride,
     onRepoIdOverrideChange,
     telemetrySource,
@@ -699,7 +716,7 @@ export function useComposerState(options: UseComposerStateOptions): UseComposerS
     [initialWorkspaceStatus, workspaceStatuses]
   )
 
-  const resolvedInitialRepoId = resolveWorkspaceCreationRepoId({
+  const resolvedInitialWorkspaceTarget = resolveWorkspaceCreationTarget({
     eligibleRepos,
     projects,
     projectHostSetups,
@@ -712,8 +729,19 @@ export function useComposerState(options: UseComposerStateOptions): UseComposerS
     focusedHostScope: workspaceHostScope,
     actionableHostIds
   })
+  const resolvedInitialRepoId =
+    resolvedInitialWorkspaceTarget.status === 'ready'
+      ? resolvedInitialWorkspaceTarget.target.repoId
+      : ''
 
   const [internalRepoId, setInternalRepoId] = useState<string>(resolvedInitialRepoId)
+  const [selectedProjectHostSetupOverrideId, setSelectedProjectHostSetupOverrideId] = useState<
+    string | null
+  >(
+    resolvedInitialWorkspaceTarget.status === 'ready'
+      ? resolvedInitialWorkspaceTarget.target.projectHostSetupId
+      : null
+  )
   const initialFolderProjectGroupId = initialProjectGroupId ?? draftProjectGroupId
   const initialFolderProjectGroup = findActionableFolderProjectGroup({
     projectGroups,
@@ -806,13 +834,29 @@ export function useComposerState(options: UseComposerStateOptions): UseComposerS
         projects,
         projectHostSetups,
         draftRepoId: repoId,
+        projectHostSetupId: selectedProjectHostSetupOverrideId,
         focusedHostScope: workspaceHostScope,
         actionableHostIds
       }),
-    [actionableHostIds, eligibleRepos, projectHostSetups, projects, repoId, workspaceHostScope]
+    [
+      actionableHostIds,
+      eligibleRepos,
+      projectHostSetups,
+      projects,
+      repoId,
+      selectedProjectHostSetupOverrideId,
+      workspaceHostScope
+    ]
   )
-  const selectedRepo = eligibleRepos.find((repo) => repo.id === repoId)
+  const selectedRepo =
+    selectedWorkspaceTarget.status === 'ready' && selectedWorkspaceTarget.target.repoId === repoId
+      ? selectedWorkspaceTarget.target.repo
+      : eligibleRepos.find((repo) => repo.id === repoId)
   const selectedRepoIsGit = selectedRepo ? isGitRepoKind(selectedRepo) : false
+  const selectedRepoExecutionHostId = selectedRepo ? getRepoExecutionHostId(selectedRepo) : null
+  const selectedRepoHookContextKey = selectedRepo
+    ? JSON.stringify([selectedRepoExecutionHostId ?? 'local', repoId])
+    : null
   const selectedRepoAgentLaunchPlatform = useMemo(() => {
     if (!selectedRepo) {
       return CLIENT_PLATFORM
@@ -1163,9 +1207,16 @@ export function useComposerState(options: UseComposerStateOptions): UseComposerS
   )
 
   const [yamlHooks, setYamlHooks] = useState<OrcaHooks | null>(null)
-  const [checkedHooksRepoId, setCheckedHooksRepoId] = useState<string | null>(null)
-  const [issueCommandTemplate, setIssueCommandTemplate] = useState('')
-  const [hasLoadedIssueCommand, setHasLoadedIssueCommand] = useState(false)
+  const [checkedHooksContextKey, setCheckedHooksContextKey] = useState<string | null>(null)
+  const [loadedIssueCommand, setLoadedIssueCommand] = useState<{
+    contextKey: string
+    result: IssueCommandReadResult
+  } | null>(null)
+  const currentIssueCommand =
+    loadedIssueCommand?.contextKey === selectedRepoHookContextKey ? loadedIssueCommand.result : null
+  const issueCommandTemplate = currentIssueCommand?.effectiveContent ?? ''
+  const hasLoadedIssueCommand =
+    !selectedRepoIsGit || !enableIssueAutomation || currentIssueCommand !== null
   const [setupDecision, setSetupDecision] = useState<'run' | 'skip' | null>(null)
   const [setupAgentStartupPolicy, setSetupAgentStartupPolicy] = useState<SetupAgentStartupPolicy>(
     () => getRepoSetupAgentStartupPolicy(selectedRepo)
@@ -1373,26 +1424,33 @@ export function useComposerState(options: UseComposerStateOptions): UseComposerS
     key: string
     promise: Promise<HookCheckResult>
   } | null>(null)
-  const loadHookCheckForRepo = useCallback((targetRepoId: string): Promise<HookCheckResult> => {
-    const key = `${selectedRepoSettingsRef.current?.activeRuntimeEnvironmentId ?? 'local'}:${targetRepoId}`
-    const existing = hookCheckRef.current
-    if (existing?.key === key) {
-      return existing.promise
-    }
-    const promise = checkRuntimeHooks(selectedRepoSettingsRef.current, targetRepoId)
-    hookCheckRef.current = { key, promise }
-    return promise
-  }, [])
+  const loadHookCheckForRepo = useCallback(
+    (targetRepoId: string): Promise<HookCheckResult> => {
+      const key = JSON.stringify([selectedRepoExecutionHostId ?? 'local', targetRepoId])
+      const existing = hookCheckRef.current
+      if (existing?.key === key) {
+        return existing.promise
+      }
+      const promise = checkRuntimeHooks(
+        selectedRepoSettingsRef.current,
+        targetRepoId,
+        selectedRepoExecutionHostId ?? undefined
+      )
+      hookCheckRef.current = { key, promise }
+      return promise
+    },
+    [selectedRepoExecutionHostId]
+  )
   const commitHookCheckIfCurrent = useCallback(
-    (targetRepoId: string, hooks: OrcaHooks | null): boolean => {
-      if (repoIdRef.current !== targetRepoId) {
+    (targetContextKey: string, hooks: OrcaHooks | null): boolean => {
+      if (selectedRepoHookContextKey !== targetContextKey) {
         return false
       }
       setYamlHooks(hooks)
-      setCheckedHooksRepoId(targetRepoId)
+      setCheckedHooksContextKey(targetContextKey)
       return true
     },
-    []
+    [selectedRepoHookContextKey]
   )
   useEffect(() => {
     if (!selectedRepo || !selectedRepoPath || !selectedRepoIsGit) {
@@ -1490,9 +1548,10 @@ export function useComposerState(options: UseComposerStateOptions): UseComposerS
     }
     return null
   }, [linkedPR, name, selectedRepoSlug])
+  const currentYamlHooks = checkedHooksContextKey === selectedRepoHookContextKey ? yamlHooks : null
   const setupConfig = useMemo(
-    () => (selectedRepoIsGit ? getSetupConfig(selectedRepo, yamlHooks) : null),
-    [selectedRepo, selectedRepoIsGit, yamlHooks]
+    () => (selectedRepoIsGit ? getSetupConfig(selectedRepo, currentYamlHooks) : null),
+    [currentYamlHooks, selectedRepo, selectedRepoIsGit]
   )
   const setupPolicy: SetupRunPolicy = selectedRepo?.hookSettings?.setupRunPolicy ?? 'run-by-default'
   const linkedWorkItemProvider = linkedWorkItem ? getLinkedWorkItemProvider(linkedWorkItem) : null
@@ -1514,7 +1573,10 @@ export function useComposerState(options: UseComposerStateOptions): UseComposerS
       : setupPolicy === 'run-by-default'
         ? 'run'
         : 'skip')
-  const isSetupCheckPending = Boolean(repoId) && checkedHooksRepoId !== repoId
+  const isSetupCheckPending =
+    selectedRepoIsGit &&
+    Boolean(selectedRepoHookContextKey) &&
+    checkedHooksContextKey !== selectedRepoHookContextKey
   const shouldWaitForSetupCheck = Boolean(selectedRepo) && selectedRepoIsGit && isSetupCheckPending
 
   // Why: blank name with no other seed → globally-unique creature name so workspaces don't collide across repos or on a literal default.
@@ -1723,38 +1785,25 @@ export function useComposerState(options: UseComposerStateOptions): UseComposerS
 
   // Per-repo: load yaml hooks + issue command template.
   useEffect(() => {
-    if (!repoId) {
+    if (!repoId || !selectedRepoIsGit || !selectedRepoHookContextKey) {
       return
     }
 
     let cancelled = false
-    setHasLoadedIssueCommand(false)
-    setIssueCommandTemplate('')
-    setYamlHooks(null)
-    setCheckedHooksRepoId(null)
-
-    if (!selectedRepoIsGit) {
-      setHasLoadedIssueCommand(true)
-      setCheckedHooksRepoId(repoId)
-      return () => {
-        cancelled = true
-      }
-    }
 
     void loadHookCheckForRepo(repoId)
       .then((result) => {
         if (!cancelled) {
-          commitHookCheckIfCurrent(repoId, result.hooks)
+          commitHookCheckIfCurrent(selectedRepoHookContextKey, result.hooks)
         }
       })
       .catch(() => {
         if (!cancelled) {
-          commitHookCheckIfCurrent(repoId, null)
+          commitHookCheckIfCurrent(selectedRepoHookContextKey, null)
         }
       })
 
     if (!enableIssueAutomation) {
-      setHasLoadedIssueCommand(true)
       return () => {
         cancelled = true
       }
@@ -1766,27 +1815,36 @@ export function useComposerState(options: UseComposerStateOptions): UseComposerS
       }
     }
 
-    void readRuntimeIssueCommand(selectedRepoSettingsRef.current, repoId)
+    void readRuntimeIssueCommand(
+      selectedRepoSettingsRef.current,
+      repoId,
+      selectedRepoExecutionHostId ?? undefined
+    )
       .then((result) => {
         if (!cancelled) {
-          setIssueCommandTemplate(result.effectiveContent ?? '')
-          setHasLoadedIssueCommand(true)
+          setLoadedIssueCommand({ contextKey: selectedRepoHookContextKey, result })
         }
       })
       .catch(() => {
         if (!cancelled) {
-          setIssueCommandTemplate('')
-          setHasLoadedIssueCommand(true)
+          setLoadedIssueCommand({
+            contextKey: selectedRepoHookContextKey,
+            result: {
+              status: 'error',
+              localContent: null,
+              sharedContent: null,
+              effectiveContent: null,
+              localFilePath: '',
+              source: 'none'
+            }
+          })
         }
       })
 
     return () => {
       cancelled = true
     }
-    // Why: key on the stable runtime-env id, not the selectedRepoSettings object. `updateRepo`
-    // (e.g. saving the setup toggle from this very composer) replaces selectedRepo — and thus the
-    // memoized selectedRepoSettings — by reference; depending on the object would re-run this
-    // effect, blank yamlHooks to null, and make the whole setup section vanish for a frame.
+    // Why: repo identity fields stay stable when updateRepo replaces the repo object by reference.
     // eslint-disable-next-line react-hooks/exhaustive-deps
   }, [
     commitHookCheckIfCurrent,
@@ -1794,6 +1852,8 @@ export function useComposerState(options: UseComposerStateOptions): UseComposerS
     enableIssueAutomation,
     loadHookCheckForRepo,
     repoId,
+    selectedRepoExecutionHostId,
+    selectedRepoHookContextKey,
     selectedRepoIsGit,
     runtimeEnvironmentId
   ])
@@ -2614,6 +2674,9 @@ export function useComposerState(options: UseComposerStateOptions): UseComposerS
     ): void => {
       setProjectError(null)
       if (value === repoId && !options.forceResetStartFrom) {
+        if (!options.preserveStartFrom) {
+          setSelectedProjectHostSetupOverrideId(null)
+        }
         setRepoId(value)
         return
       }
@@ -2634,6 +2697,22 @@ export function useComposerState(options: UseComposerStateOptions): UseComposerS
         ? getLinearLinkedWorkItemBranchName(linkedWorkItem)
         : undefined
       setRepoId(value)
+      if (!options.preserveStartFrom) {
+        setSelectedProjectHostSetupOverrideId(null)
+      }
+      if (options.preserveStartFrom && smartGitHubPrStartPointSelectionRef.current) {
+        smartGitHubPrStartPointSelectionRef.current = retargetGitHubPrStartPointSelection(
+          smartGitHubPrStartPointSelectionRef.current,
+          value
+        )
+        setBaseBranch(undefined)
+        setCompareBaseRef(undefined)
+        setPushTarget(undefined)
+        setBranchNameOverride(undefined)
+        setBranchNameOverridePreservesNameEdits(false)
+        branchAutoNameRef.current = ''
+        setForkPushWarning(null)
+      }
       if (!options.preserveStartFrom) {
         smartGitHubPrStartPointSelectionRef.current = null
         setLinkedIssue('')
@@ -2697,7 +2776,11 @@ export function useComposerState(options: UseComposerStateOptions): UseComposerS
         return
       }
       // Why: switching run host for the same project must not erase the task/PR source the user is starting from.
-      handleRepoChange(option.repoId, { preserveStartFrom: true })
+      setSelectedProjectHostSetupOverrideId(option.id)
+      handleRepoChange(option.repoId, {
+        preserveStartFrom: true,
+        forceResetStartFrom: true
+      })
     },
     [handleRepoChange, projectHostSetupOptions]
   )
@@ -3338,15 +3421,25 @@ export function useComposerState(options: UseComposerStateOptions): UseComposerS
         const shouldResolveSmartGitHubSubmit = canResolveFolderSmartGitHubSubmit({
           hasFolderSourceRepos: folderSourceRepos.length > 0
         })
-        const smartGitHubResolution = shouldResolveSmartGitHubSubmit
-          ? await resolvePendingSmartGitHubSubmit()
-          : ({ kind: 'none' } as const)
+        const smartGitHubSettlement = await settleComposerSubmit(
+          shouldResolveSmartGitHubSubmit
+            ? resolvePendingSmartGitHubSubmit()
+            : Promise.resolve({ kind: 'none' } as const),
+          isSubmissionCancelled
+        )
+        if (smartGitHubSettlement.status === 'cancelled') {
+          return
+        }
+        const smartGitHubResolution = smartGitHubSettlement.value
         const smartGitHubMetadata =
           smartGitHubResolution.kind === 'none' ? null : smartGitHubResolution
         const agent =
           requestedAgent && isTuiAgentEnabled(requestedAgent, disabledTuiAgents)
             ? requestedAgent
             : null
+        if (isSubmissionCancelled()) {
+          return
+        }
         const folderWorkspaceCreated = await submitFolderWorkspaceCreate({
           projectGroup: selectedProjectGroup,
           name: smartGitHubMetadata?.workspaceName ?? name,
@@ -3394,6 +3487,9 @@ export function useComposerState(options: UseComposerStateOptions): UseComposerS
           })
         }
       } catch (error) {
+        if (isSubmissionCancelled()) {
+          return
+        }
         const formattedError = formatWorkspaceCreateError(error)
         setCreateError(formattedError)
         toast.error(getWorkspaceCreateErrorToastMessage(formattedError))
@@ -3409,6 +3505,7 @@ export function useComposerState(options: UseComposerStateOptions): UseComposerS
       folderTargetIsRemote,
       folderTargetRuntimeEnvironmentId,
       folderSourceRepos.length,
+      isSubmissionCancelled,
       linkedWorkItem,
       name,
       note,
@@ -3461,7 +3558,14 @@ export function useComposerState(options: UseComposerStateOptions): UseComposerS
     setCreateError(null)
     setCreating(true)
     try {
-      const smartGitHubResolution = await resolvePendingSmartGitHubSubmit()
+      const smartGitHubSettlement = await settleComposerSubmit(
+        resolvePendingSmartGitHubSubmit(),
+        isSubmissionCancelled
+      )
+      if (smartGitHubSettlement.status === 'cancelled') {
+        return
+      }
+      const smartGitHubResolution = smartGitHubSettlement.value
       const submitLinkedWorkItem =
         smartGitHubResolution.kind === 'none'
           ? linkedWorkItem
@@ -3564,20 +3668,56 @@ export function useComposerState(options: UseComposerStateOptions): UseComposerS
         issueCommandTemplate.length > 0 &&
         !submitShouldApplyLinkedOnlyTemplate
 
-      const setupTrustDecision = selectedRepoIsGit
-        ? await ensureHooksConfirmed(useAppStore.getState(), repoId, 'setup')
-        : 'skip'
+      const setupTrustSettlement = await settleComposerSubmit(
+        selectedRepoIsGit
+          ? ensureHooksConfirmed(
+              useAppStore.getState(),
+              repoId,
+              'setup',
+              selectedRepoExecutionHostId ?? undefined,
+              undefined,
+              isSubmissionCancelled
+            )
+          : Promise.resolve<'skip'>('skip'),
+        isSubmissionCancelled
+      )
+      if (setupTrustSettlement.status === 'cancelled') {
+        return
+      }
+      const setupTrustDecision = setupTrustSettlement.value
       const effectiveSetupDecision: SetupDecision =
         setupTrustDecision === 'skip'
           ? 'skip'
           : ((resolvedSetupDecision ?? 'inherit') as SetupDecision)
 
       let issueCommandTrustDecision: 'run' | 'skip' = 'run'
-      if (selectedRepoIsGit && submitShouldRunIssueAutomation) {
-        issueCommandTrustDecision =
-          setupTrustDecision === 'skip'
-            ? 'skip'
-            : await ensureHooksConfirmed(useAppStore.getState(), repoId, 'issueCommand')
+      let confirmedIssueCommandTemplate = issueCommandTemplate
+      if (
+        selectedRepoIsGit &&
+        submitShouldRunIssueAutomation &&
+        currentIssueCommand &&
+        selectedRepoExecutionHostId
+      ) {
+        if (setupTrustDecision === 'skip') {
+          issueCommandTrustDecision = 'skip'
+        } else {
+          const issueCommandSettlement = await settleComposerSubmit(
+            confirmRuntimeIssueCommandRead(
+              useAppStore.getState(),
+              repoId,
+              selectedRepoExecutionHostId,
+              currentIssueCommand,
+              isSubmissionCancelled
+            ),
+            isSubmissionCancelled
+          )
+          if (issueCommandSettlement.status === 'cancelled') {
+            return
+          }
+          const confirmed = issueCommandSettlement.value
+          issueCommandTrustDecision = confirmed.trustDecision
+          confirmedIssueCommandTemplate = confirmed.template
+        }
       }
 
       const linkedLinearIssue =
@@ -3651,7 +3791,14 @@ export function useComposerState(options: UseComposerStateOptions): UseComposerS
               telemetry: composerTelemetry
             }
           : undefined
-      if (!(await persistSetupAgentStartupPolicy())) {
+      const startupPolicySettlement = await settleComposerSubmit(
+        persistSetupAgentStartupPolicy(),
+        isSubmissionCancelled
+      )
+      if (startupPolicySettlement.status === 'cancelled') {
+        return
+      }
+      if (!startupPolicySettlement.value) {
         throw new Error(
           translate(
             'auto.hooks.useComposerState.setupAgentStartupPolicySaveFailed',
@@ -3659,6 +3806,9 @@ export function useComposerState(options: UseComposerStateOptions): UseComposerS
           )
         )
       }
+      if (isSubmissionCancelled()) {
+        return
+      }
       const result = await createWorktree(
         repoId,
         workspaceName,
@@ -3704,7 +3854,7 @@ export function useComposerState(options: UseComposerStateOptions): UseComposerS
       const issueCommand =
         submitShouldRunIssueAutomation && issueCommandTrustDecision === 'run'
           ? {
-              command: renderIssueCommandTemplate(issueCommandTemplate, {
+              command: renderIssueCommandTemplate(confirmedIssueCommandTemplate, {
                 issueNumber: submitLinkedIssueNumber,
                 artifactUrl: submitLinkedWorkItem?.url ?? null
               })
@@ -3766,6 +3916,9 @@ export function useComposerState(options: UseComposerStateOptions): UseComposerS
       onCreated?.()
       queueWorkspaceActivationTerminalFocus(worktree.id, activation)
     } catch (error) {
+      if (isSubmissionCancelled()) {
+        return
+      }
       const formattedError = formatWorkspaceCreateError(error)
       setCreateError(formattedError)
       toast.error(getWorkspaceCreateErrorToastMessage(formattedError))
@@ -3781,9 +3934,11 @@ export function useComposerState(options: UseComposerStateOptions): UseComposerS
     clearNewWorkspaceDraft,
     compareBaseRef,
     createWorktree,
+    currentIssueCommand,
     applyWorktreeMeta,
     enableIssueAutomation,
     issueCommandTemplate,
+    isSubmissionCancelled,
     effectiveLinkedPR,
     hasLoadedIssueCommand,
     linkedGitLabIssue,
@@ -3804,6 +3959,7 @@ export function useComposerState(options: UseComposerStateOptions): UseComposerS
     resolvedInitialWorkspaceStatus,
     selectedRepo,
     selectedRepoAgentLaunchPlatform,
+    selectedRepoExecutionHostId,
     selectedRepoIsRemote,
     selectedRepoStartupShell,
     selectedRepoIsGit,
@@ -3885,10 +4041,46 @@ export function useComposerState(options: UseComposerStateOptions): UseComposerS
         return
       }
 
+      const workspaceRunContext: WorktreeCreationRequest['workspaceRunContext'] =
+        selectedWorkspaceTarget.status === 'ready'
+          ? {
+              kind: 'workspace-run',
+              projectId: selectedWorkspaceTarget.target.projectId,
+              hostId: selectedWorkspaceTarget.target.hostId,
+              projectHostSetupId: selectedWorkspaceTarget.target.projectHostSetupId,
+              repoId: selectedWorkspaceTarget.target.repoId,
+              path: selectedWorkspaceTarget.target.repo.path
+            }
+          : null
+      const liveStore = useAppStore.getState()
+      const pendingCreationId = findPendingLinkedWorkItemCreationId(
+        liveStore.pendingWorktreeCreations,
+        {
+          repoId,
+          ...(parsedLinkedIssueNumber != null ? { linkedIssue: parsedLinkedIssueNumber } : {}),
+          ...(effectiveLinkedPR != null ? { linkedPR: effectiveLinkedPR } : {}),
+          workspaceRunContext
+        }
+      )
+      if (pendingCreationId) {
+        liveStore.setActivePendingWorktreeCreation(pendingCreationId)
+        liveStore.setActiveView('terminal')
+        liveStore.setSidebarOpen(true)
+        onCreated?.()
+        return
+      }
+
       setCreateError(null)
       setCreating(true)
       try {
-        const smartGitHubResolution = await resolvePendingSmartGitHubSubmit()
+        const smartGitHubSettlement = await settleComposerSubmit(
+          resolvePendingSmartGitHubSubmit(),
+          isSubmissionCancelled
+        )
+        if (smartGitHubSettlement.status === 'cancelled') {
+          return
+        }
+        const smartGitHubResolution = smartGitHubSettlement.value
         const submitLinkedWorkItem =
           smartGitHubResolution.kind === 'none'
             ? linkedWorkItem
@@ -3957,14 +4149,25 @@ export function useComposerState(options: UseComposerStateOptions): UseComposerS
 
         let submitSetupConfig = setupConfig
         let submitResolvedSetupDecision = resolvedSetupDecision
-        if (selectedRepoIsGit && checkedHooksRepoId !== repoId) {
+        if (
+          selectedRepoIsGit &&
+          selectedRepoHookContextKey &&
+          checkedHooksContextKey !== selectedRepoHookContextKey
+        ) {
           let hookCheck: HookCheckResult
           try {
-            hookCheck = await loadHookCheckForRepo(repoId)
+            const hookCheckSettlement = await settleComposerSubmit(
+              loadHookCheckForRepo(repoId),
+              isSubmissionCancelled
+            )
+            if (hookCheckSettlement.status === 'cancelled') {
+              return
+            }
+            hookCheck = hookCheckSettlement.value
           } catch {
             hookCheck = { hasHooks: false, hooks: null, mayNeedUpdate: false }
           }
-          if (!commitHookCheckIfCurrent(repoId, hookCheck.hooks)) {
+          if (!commitHookCheckIfCurrent(selectedRepoHookContextKey, hookCheck.hooks)) {
             return
           }
           submitSetupConfig = getSetupConfig(selectedRepo, hookCheck.hooks)
@@ -3981,9 +4184,23 @@ export function useComposerState(options: UseComposerStateOptions): UseComposerS
           return
         }
 
-        const trustDecision = selectedRepoIsGit
-          ? await ensureHooksConfirmed(useAppStore.getState(), repoId, 'setup')
-          : 'skip'
+        const setupTrustSettlement = await settleComposerSubmit(
+          selectedRepoIsGit
+            ? ensureHooksConfirmed(
+                useAppStore.getState(),
+                repoId,
+                'setup',
+                selectedRepoExecutionHostId ?? undefined,
+                undefined,
+                isSubmissionCancelled
+              )
+            : Promise.resolve<'skip'>('skip'),
+          isSubmissionCancelled
+        )
+        if (setupTrustSettlement.status === 'cancelled') {
+          return
+        }
+        const trustDecision = setupTrustSettlement.value
         const effectiveSetupDecision: SetupDecision =
           trustDecision === 'skip'
             ? 'skip'
@@ -3992,21 +4209,38 @@ export function useComposerState(options: UseComposerStateOptions): UseComposerS
         const submitLinkedWorkItemProvider = submitLinkedWorkItem
           ? getLinkedWorkItemProvider(submitLinkedWorkItem)
           : null
-        let submitIssueCommandTemplate = issueCommandTemplate
-        if (
+        const shouldReadIssueCommand =
           enableIssueAutomation &&
           selectedRepoIsGit &&
           submitLinkedIssueNumber !== null &&
-          !hasLoadedIssueCommand
+          canUseIssueCommandForLinkedItemProvider(submitLinkedWorkItemProvider)
+        let submitIssueCommandTemplate = ''
+        let issueCommandTrustDecision: 'run' | 'skip' = 'skip'
+        if (
+          shouldReadIssueCommand &&
+          trustDecision !== 'skip' &&
+          selectedRepoExecutionHostId &&
+          selectedRepoHookContextKey
         ) {
-          try {
-            const result = await readRuntimeIssueCommand(selectedRepoSettingsRef.current, repoId)
-            submitIssueCommandTemplate = result.effectiveContent ?? ''
-          } catch {
-            submitIssueCommandTemplate = ''
+          const issueCommandSettlement = await settleComposerSubmit(
+            readAndConfirmRuntimeIssueCommand(
+              useAppStore.getState(),
+              repoId,
+              selectedRepoExecutionHostId,
+              isSubmissionCancelled
+            ),
+            isSubmissionCancelled
+          )
+          if (issueCommandSettlement.status === 'cancelled') {
+            return
           }
-          setIssueCommandTemplate(submitIssueCommandTemplate)
-          setHasLoadedIssueCommand(true)
+          const confirmedIssueCommand = issueCommandSettlement.value
+          submitIssueCommandTemplate = confirmedIssueCommand.template
+          issueCommandTrustDecision = confirmedIssueCommand.trustDecision
+          setLoadedIssueCommand({
+            contextKey: selectedRepoHookContextKey,
+            result: confirmedIssueCommand.result
+          })
         }
         const issueCommandInput = {
           enabled: enableIssueAutomation && selectedRepoIsGit,
@@ -4015,12 +4249,6 @@ export function useComposerState(options: UseComposerStateOptions): UseComposerS
           template: submitIssueCommandTemplate,
           artifactUrl: submitLinkedWorkItem?.url ?? null
         }
-        const shouldRunIssueCommand = shouldPrepareComposerIssueCommand(issueCommandInput)
-        const issueCommandTrustDecision = shouldRunIssueCommand
-          ? trustDecision === 'skip'
-            ? 'skip'
-            : await ensureHooksConfirmed(useAppStore.getState(), repoId, 'issueCommand')
-          : 'skip'
         const issueCommand = buildTrustedComposerIssueCommand({
           ...issueCommandInput,
           trustDecision: issueCommandTrustDecision
@@ -4046,11 +4274,16 @@ export function useComposerState(options: UseComposerStateOptions): UseComposerS
           createBranchFromWorkspaceName:
             smartGitHubResolution.kind === 'none' && smartNameMode === 'branches'
         })
-        const submitBaseBranch = selectedRepoIsGit
-          ? await resolveWorktreeCreateBaseBranch({
-              explicitBaseBranch: smartSubmitBaseBranch
-            })
-          : undefined
+        const baseBranchSettlement = await settleComposerSubmit(
+          selectedRepoIsGit
+            ? resolveWorktreeCreateBaseBranch({ explicitBaseBranch: smartSubmitBaseBranch })
+            : Promise.resolve(undefined),
+          isSubmissionCancelled
+        )
+        if (baseBranchSettlement.status === 'cancelled') {
+          return
+        }
+        const submitBaseBranch = baseBranchSettlement.value
         const createDisplayName =
           smartGitHubResolution.kind === 'none'
             ? nameIsAutoManaged
@@ -4147,7 +4380,14 @@ export function useComposerState(options: UseComposerStateOptions): UseComposerS
                 ...(quickTelemetry ? { telemetry: quickTelemetry } : {})
               }
             : undefined
-        if (!(await persistSetupAgentStartupPolicy())) {
+        const startupPolicySettlement = await settleComposerSubmit(
+          persistSetupAgentStartupPolicy(),
+          isSubmissionCancelled
+        )
+        if (startupPolicySettlement.status === 'cancelled') {
+          return
+        }
+        if (!startupPolicySettlement.value) {
           throw new Error(
             translate(
               'auto.hooks.useComposerState.setupAgentStartupPolicySaveFailed',
@@ -4155,25 +4395,24 @@ export function useComposerState(options: UseComposerStateOptions): UseComposerS
             )
           )
         }
-        let creationWorkspaceRunContext: WorktreeCreationRequest['workspaceRunContext'] =
-          selectedWorkspaceTarget.status === 'ready'
-            ? {
-                kind: 'workspace-run',
-                projectId: selectedWorkspaceTarget.target.projectId,
-                hostId: selectedWorkspaceTarget.target.hostId,
-                projectHostSetupId: selectedWorkspaceTarget.target.projectHostSetupId,
-                repoId: selectedWorkspaceTarget.target.repoId,
-                path: selectedWorkspaceTarget.target.repo.path
-              }
-            : null
         let ephemeralVmRecipe: WorktreeCreationRequest['ephemeralVmRecipe']
         const activeEphemeralVmRecipeId = ephemeralVmsEnabled ? selectedEphemeralVmRecipeId : null
         if (activeEphemeralVmRecipeId && selectedWorkspaceTarget.status === 'ready') {
-          const vmRecipeTrustDecision = await ensureHooksConfirmed(
-            useAppStore.getState(),
-            repoId,
-            'vmRecipe'
+          const vmRecipeTrustSettlement = await settleComposerSubmit(
+            ensureHooksConfirmed(
+              useAppStore.getState(),
+              repoId,
+              'vmRecipe',
+              selectedRepoExecutionHostId ?? undefined,
+              undefined,
+              isSubmissionCancelled
+            ),
+            isSubmissionCancelled
           )
+          if (vmRecipeTrustSettlement.status === 'cancelled') {
+            return
+          }
+          const vmRecipeTrustDecision = vmRecipeTrustSettlement.value
           if (vmRecipeTrustDecision === 'skip') {
             return
           }
@@ -4195,9 +4434,7 @@ export function useComposerState(options: UseComposerStateOptions): UseComposerS
           ...(taskSourceContext ? { taskSourceContext } : {}),
           linkedWorkItem: toFolderWorkspaceLinkedTask(submitLinkedWorkItem),
           linkedTaskSourceContext: taskSourceContext,
-          ...(creationWorkspaceRunContext
-            ? { workspaceRunContext: creationWorkspaceRunContext }
-            : {}),
+          ...(workspaceRunContext ? { workspaceRunContext } : {}),
           name: workspaceName,
           ...(createDisplayName ? { displayName: createDisplayName } : {}),
           ...(selectedRepoIsGit && submitBaseBranch ? { baseBranch: submitBaseBranch } : {}),
@@ -4247,6 +4484,9 @@ export function useComposerState(options: UseComposerStateOptions): UseComposerS
         }
 
         // Why: git fetch + `git worktree add` can take 10–15s; run in the background so the modal isn't frozen.
+        if (isSubmissionCancelled()) {
+          return
+        }
         if (persistDraft) {
           clearNewWorkspaceDraft()
         }
@@ -4258,6 +4498,9 @@ export function useComposerState(options: UseComposerStateOptions): UseComposerS
           onCreated?.()
         }
       } catch (error) {
+        if (isSubmissionCancelled()) {
+          return
+        }
         const formattedError = formatWorkspaceCreateError(error)
         setCreateError(formattedError)
         toast.error(getWorkspaceCreateErrorToastMessage(formattedError))
@@ -4274,8 +4517,7 @@ export function useComposerState(options: UseComposerStateOptions): UseComposerS
       fallbackCreatureName,
       effectiveLinkedPR,
       enableIssueAutomation,
-      hasLoadedIssueCommand,
-      issueCommandTemplate,
+      isSubmissionCancelled,
       linkedGitLabIssue,
       linkedGitLabMR,
       linkedPR,
@@ -4295,6 +4537,7 @@ export function useComposerState(options: UseComposerStateOptions): UseComposerS
       resolvedInitialWorkspaceStatus,
       selectedRepo,
       selectedRepoAgentLaunchPlatform,
+      selectedRepoExecutionHostId,
       selectedRepoIsRemote,
       selectedRepoStartupShell,
       selectedRepoIsGit,
@@ -4318,11 +4561,12 @@ export function useComposerState(options: UseComposerStateOptions): UseComposerS
       effectivePresetId,
       telemetrySource,
       taskSourceContext,
-      checkedHooksRepoId,
+      checkedHooksContextKey,
       commitHookCheckIfCurrent,
       loadHookCheckForRepo,
       setupConfig,
       setupPolicy,
+      selectedRepoHookContextKey,
       isProjectGroupTarget,
       submitFolderTarget,
       createMultiple,
diff --git a/src/renderer/src/lib/composer-submit-cancellation.test.ts b/src/renderer/src/lib/composer-submit-cancellation.test.ts
new file mode 100644
index 00000000000..bde48dc8bcb
--- /dev/null
+++ b/src/renderer/src/lib/composer-submit-cancellation.test.ts
@@ -0,0 +1,44 @@
+import { describe, expect, it } from 'vitest'
+import { settleComposerSubmit } from './composer-submit-cancellation'
+
+describe('settleComposerSubmit', () => {
+  it('drops a resolved preflight result after cancellation', async () => {
+    let cancelled = false
+    let resolvePreflight: (value: string) => void = () => undefined
+    const preflight = new Promise<string>((resolve) => {
+      resolvePreflight = resolve
+    })
+    const settlement = settleComposerSubmit(preflight, () => cancelled)
+
+    cancelled = true
+    resolvePreflight('stale result')
+
+    await expect(settlement).resolves.toEqual({ status: 'cancelled' })
+  })
+
+  it('suppresses a rejected preflight after cancellation', async () => {
+    let cancelled = false
+    let rejectPreflight: (error: Error) => void = () => undefined
+    const preflight = new Promise<string>((_resolve, reject) => {
+      rejectPreflight = reject
+    })
+    const settlement = settleComposerSubmit(preflight, () => cancelled)
+
+    cancelled = true
+    rejectPreflight(new Error('late failure'))
+
+    await expect(settlement).resolves.toEqual({ status: 'cancelled' })
+  })
+
+  it('preserves successful and failed results while active', async () => {
+    const active = () => false
+
+    await expect(settleComposerSubmit(Promise.resolve('ready'), active)).resolves.toEqual({
+      status: 'completed',
+      value: 'ready'
+    })
+    await expect(
+      settleComposerSubmit(Promise.reject(new Error('failure')), active)
+    ).rejects.toThrow('failure')
+  })
+})
diff --git a/src/renderer/src/lib/composer-submit-cancellation.ts b/src/renderer/src/lib/composer-submit-cancellation.ts
new file mode 100644
index 00000000000..55fbe3eb46d
--- /dev/null
+++ b/src/renderer/src/lib/composer-submit-cancellation.ts
@@ -0,0 +1,18 @@
+export type ComposerSubmitSettlement<T> =
+  | { status: 'completed'; value: T }
+  | { status: 'cancelled' }
+
+export async function settleComposerSubmit<T>(
+  promise: Promise<T>,
+  isCancelled: () => boolean
+): Promise<ComposerSubmitSettlement<T>> {
+  try {
+    const value = await promise
+    return isCancelled() ? { status: 'cancelled' } : { status: 'completed', value }
+  } catch (error) {
+    if (isCancelled()) {
+      return { status: 'cancelled' }
+    }
+    throw error
+  }
+}
diff --git a/src/renderer/src/lib/ensure-hooks-confirmed.test.ts b/src/renderer/src/lib/ensure-hooks-confirmed.test.ts
index 1bb0053daa6..00b8621a35b 100644
--- a/src/renderer/src/lib/ensure-hooks-confirmed.test.ts
+++ b/src/renderer/src/lib/ensure-hooks-confirmed.test.ts
@@ -1,7 +1,11 @@
 import { beforeEach, describe, expect, it, vi } from 'vitest'
 import type { AppState } from '@/store/types'
 import type { PersistedTrustedOrcaHooks } from '../../../shared/types'
-import { __resetTrustPromptChainForTests, ensureHooksConfirmed } from './ensure-hooks-confirmed'
+import {
+  __resetTrustPromptChainForTests,
+  ensureHooksConfirmed,
+  readAndConfirmRuntimeIssueCommand
+} from './ensure-hooks-confirmed'
 import { hashOrcaHookScript } from './orca-hook-trust'
 import {
   createCompatibleRuntimeStatusResponseIfNeeded,
@@ -388,6 +392,98 @@ describe('ensureHooksConfirmed', () => {
     expect(readIssueCommandMock).toHaveBeenCalledWith({ repoId: 'repo-1', hostId: 'ssh:server' })
   })
 
+  it('approves and returns the exact issue-command bytes from one host-qualified read', async () => {
+    const { state, pending } = createTestState({
+      repos: [
+        { id: 'repo-1', displayName: 'Local Row' },
+        { id: 'repo-1', displayName: 'SSH Row', connectionId: 'server' }
+      ]
+    } as unknown as Partial<AppState>)
+    readIssueCommandMock
+      .mockResolvedValueOnce({
+        status: 'ok',
+        source: 'shared',
+        sharedContent: 'approved bytes',
+        localContent: null,
+        effectiveContent: 'approved bytes',
+        localFilePath: ''
+      })
+      .mockResolvedValueOnce({
+        status: 'ok',
+        source: 'shared',
+        sharedContent: 'changed bytes',
+        localContent: null,
+        effectiveContent: 'changed bytes',
+        localFilePath: ''
+      })
+
+    const promise = readAndConfirmRuntimeIssueCommand(state, 'repo-1', 'ssh:server')
+
+    await vi.waitFor(() => expect(pending).toHaveLength(1))
+    expect(pending[0].data.scriptContent).toBe('approved bytes')
+    pending[0].resolve('run')
+
+    await expect(promise).resolves.toMatchObject({
+      template: 'approved bytes',
+      trustDecision: 'run'
+    })
+    expect(readIssueCommandMock).toHaveBeenCalledTimes(1)
+    expect(readIssueCommandMock).toHaveBeenCalledWith({
+      repoId: 'repo-1',
+      hostId: 'ssh:server'
+    })
+  })
+
+  it('does not reuse repo-wide trust across duplicate execution hosts', async () => {
+    const { state, pending } = createTestState({
+      trustedOrcaHooks: { 'repo-1': { all: { approvedAt: 1 } } },
+      repos: [
+        { id: 'repo-1', displayName: 'Runtime', executionHostId: 'runtime:env-1' },
+        { id: 'repo-1', displayName: 'SSH', connectionId: 'server' }
+      ]
+    } as unknown as Partial<AppState>)
+    readIssueCommandMock.mockResolvedValue({
+      status: 'ok',
+      source: 'shared',
+      sharedContent: 'host-specific bytes',
+      localContent: null,
+      effectiveContent: 'host-specific bytes',
+      localFilePath: ''
+    })
+
+    const promise = readAndConfirmRuntimeIssueCommand(state, 'repo-1', 'ssh:server')
+
+    await vi.waitFor(() => expect(pending).toHaveLength(1))
+    pending[0].resolve('skip')
+    await expect(promise).resolves.toMatchObject({ trustDecision: 'skip' })
+  })
+
+  it('does not open a trust prompt after its composer is cancelled mid-read', async () => {
+    const { state, pending } = createTestState()
+    let cancelled = false
+    let resolveRead: (result: Record<string, unknown>) => void = () => undefined
+    readIssueCommandMock.mockImplementation(
+      () =>
+        new Promise((resolve) => {
+          resolveRead = resolve
+        })
+    )
+
+    const promise = readAndConfirmRuntimeIssueCommand(state, 'repo-1', 'local', () => cancelled)
+    cancelled = true
+    resolveRead({
+      status: 'ok',
+      source: 'shared',
+      sharedContent: 'late bytes',
+      localContent: null,
+      effectiveContent: 'late bytes',
+      localFilePath: ''
+    })
+
+    await expect(promise).resolves.toMatchObject({ trustDecision: 'skip' })
+    expect(pending).toHaveLength(0)
+  })
+
   it('fails closed when issueCommand inspection reports an error status', async () => {
     const { state, pending } = createTestState()
     readIssueCommandMock.mockResolvedValue({
diff --git a/src/renderer/src/lib/ensure-hooks-confirmed.ts b/src/renderer/src/lib/ensure-hooks-confirmed.ts
index f04b1e65546..c98638deddf 100644
--- a/src/renderer/src/lib/ensure-hooks-confirmed.ts
+++ b/src/renderer/src/lib/ensure-hooks-confirmed.ts
@@ -2,7 +2,11 @@ import type { AppState } from '@/store/types'
 import type { OrcaHooks } from '../../../shared/types'
 import { resolveHookCommandSourcePolicy } from '../../../shared/hook-command-source-policy'
 import { hashOrcaHookScript, type OrcaHookScriptKind } from './orca-hook-trust'
-import { checkRuntimeHooks, readRuntimeIssueCommand } from '@/runtime/runtime-hooks-client'
+import {
+  checkRuntimeHooks,
+  readRuntimeIssueCommand,
+  type IssueCommandReadResult
+} from '@/runtime/runtime-hooks-client'
 import { getRuntimeEnvironmentIdForRepo } from './repo-runtime-owner'
 import {
   getRepoExecutionHostId,
@@ -12,6 +16,8 @@ import {
 
 export type HookScriptKind = OrcaHookScriptKind
 
+const NEVER_CANCEL_TRUST_CHECK = (): boolean => false
+
 // Serialize the singleton modal callback so overlapping worktree actions cannot replace it.
 let trustPromptChain: Promise<unknown> = Promise.resolve()
 
@@ -88,16 +94,147 @@ function settingsForHookRepoOwner(
     : ({ activeRuntimeEnvironmentId: runtimeEnvironmentId } as AppState['settings'])
 }
 
+function canUseRepoWideTrust(state: AppState, repoId: string): boolean {
+  const hasDuplicateRepoId = state.repos.filter((repo) => repo.id === repoId).length > 1
+  return Boolean(state.trustedOrcaHooks[repoId]?.all) && !hasDuplicateRepoId
+}
+
+async function confirmScriptContent(
+  state: AppState,
+  repoId: string,
+  scriptKind: HookScriptKind,
+  scriptContent: string,
+  hostId?: ExecutionHostId,
+  isCancelled: () => boolean = NEVER_CANCEL_TRUST_CHECK
+): Promise<'run' | 'skip'> {
+  if (isCancelled()) {
+    return 'skip'
+  }
+  if (canUseRepoWideTrust(state, repoId) || !scriptContent) {
+    return 'run'
+  }
+
+  const contentHash = await hashOrcaHookScript(scriptContent)
+  if (isCancelled()) {
+    return 'skip'
+  }
+  const existingHash = state.trustedOrcaHooks[repoId]?.[scriptKind]?.contentHash
+  if (existingHash === contentHash) {
+    return 'run'
+  }
+
+  const repo = findHookRepo(state, repoId, hostId)
+  const repoName = repo?.displayName ?? 'this repository'
+  const previouslyApproved = Boolean(existingHash)
+
+  return new Promise<'run' | 'skip'>((resolve) => {
+    state.openModal('confirm-orca-yaml-hooks', {
+      repoId,
+      repoName,
+      scriptKind,
+      scriptContent,
+      contentHash,
+      previouslyApproved,
+      onResolve: (decision: 'run' | 'skip') => resolve(decision)
+    })
+  })
+}
+
+function getIssueCommandTrustContent(result: IssueCommandReadResult): string {
+  if (result.source === 'local') {
+    return (result.localContent ?? '').trim()
+  }
+  if (result.source === 'shared') {
+    return (result.sharedContent ?? '').trim()
+  }
+  return ''
+}
+
+async function confirmIssueCommandReadResult(
+  state: AppState,
+  repoId: string,
+  hostId: ExecutionHostId,
+  result: IssueCommandReadResult,
+  isCancelled: () => boolean = NEVER_CANCEL_TRUST_CHECK
+): Promise<'run' | 'skip'> {
+  if (isCancelled()) {
+    return 'skip'
+  }
+  if (result.source === 'local') {
+    return 'run'
+  }
+  if (result.status === 'error') {
+    return 'skip'
+  }
+  return confirmScriptContent(
+    state,
+    repoId,
+    'issueCommand',
+    getIssueCommandTrustContent(result),
+    hostId,
+    isCancelled
+  )
+}
+
+export type ConfirmedRuntimeIssueCommand = {
+  result: IssueCommandReadResult
+  template: string
+  trustDecision: 'run' | 'skip'
+}
+
+export function confirmRuntimeIssueCommandRead(
+  state: AppState,
+  repoId: string,
+  hostId: ExecutionHostId,
+  result: IssueCommandReadResult,
+  isCancelled: () => boolean = NEVER_CANCEL_TRUST_CHECK
+): Promise<ConfirmedRuntimeIssueCommand> {
+  return enqueueTrustPrompt(async () => ({
+    result,
+    template: getIssueCommandTrustContent(result),
+    trustDecision: await confirmIssueCommandReadResult(state, repoId, hostId, result, isCancelled)
+  }))
+}
+
+export async function readAndConfirmRuntimeIssueCommand(
+  state: AppState,
+  repoId: string,
+  hostId: ExecutionHostId,
+  isCancelled: () => boolean = NEVER_CANCEL_TRUST_CHECK
+): Promise<ConfirmedRuntimeIssueCommand> {
+  let result: IssueCommandReadResult
+  try {
+    result = await readRuntimeIssueCommand(
+      settingsForHookRepoOwner(state, repoId, hostId),
+      repoId,
+      hostId
+    )
+  } catch {
+    result = {
+      status: 'error',
+      localContent: null,
+      sharedContent: null,
+      effectiveContent: null,
+      localFilePath: '',
+      source: 'none'
+    }
+  }
+  return confirmRuntimeIssueCommandRead(state, repoId, hostId, result, isCancelled)
+}
+
 export async function ensureHooksConfirmed(
   state: AppState,
   repoId: string,
   scriptKind: HookScriptKind,
   hostId?: ExecutionHostId,
-  runtimeOwnerEnvironmentId?: string | null
+  runtimeOwnerEnvironmentId?: string | null,
+  isCancelled: () => boolean = NEVER_CANCEL_TRUST_CHECK
 ): Promise<'run' | 'skip'> {
   return enqueueTrustPrompt(async () => {
-    const hasDuplicateRepoId = state.repos.filter((repo) => repo.id === repoId).length > 1
-    if (state.trustedOrcaHooks[repoId]?.all && !(hostId && hasDuplicateRepoId)) {
+    if (isCancelled()) {
+      return 'skip'
+    }
+    if (canUseRepoWideTrust(state, repoId)) {
       return 'run'
     }
 
@@ -155,32 +292,6 @@ export async function ensureHooksConfirmed(
       return 'skip'
     }
 
-    if (!scriptContent) {
-      return 'run'
-    }
-
-    const contentHash = await hashOrcaHookScript(scriptContent)
-    const existingHash = state.trustedOrcaHooks[repoId]?.[scriptKind]?.contentHash
-    if (existingHash === contentHash) {
-      return 'run'
-    }
-
-    const repo = findHookRepo(state, repoId, hostId)
-    const repoName = repo?.displayName ?? 'this repository'
-    // A non-empty existingHash that didn't match means the user approved a previous
-    // version of this script; the prompt is reappearing because orca.yaml changed.
-    const previouslyApproved = Boolean(existingHash)
-
-    return new Promise<'run' | 'skip'>((resolve) => {
-      state.openModal('confirm-orca-yaml-hooks', {
-        repoId,
-        repoName,
-        scriptKind,
-        scriptContent,
-        contentHash,
-        previouslyApproved,
-        onResolve: (decision: 'run' | 'skip') => resolve(decision)
-      })
-    })
+    return confirmScriptContent(state, repoId, scriptKind, scriptContent, hostId, isCancelled)
   })
 }
diff --git a/src/renderer/src/lib/pending-worktree-creation.test.ts b/src/renderer/src/lib/pending-worktree-creation.test.ts
new file mode 100644
index 00000000000..b015e3ce96c
--- /dev/null
+++ b/src/renderer/src/lib/pending-worktree-creation.test.ts
@@ -0,0 +1,99 @@
+import { describe, expect, it } from 'vitest'
+import {
+  findPendingLinkedWorkItemCreationId,
+  type PendingWorktreeCreation,
+  type WorktreeCreationRequest
+} from './pending-worktree-creation'
+
+function request(overrides: Partial<WorktreeCreationRequest> = {}): WorktreeCreationRequest {
+  return {
+    repoId: 'repo-1',
+    name: 'workspace',
+    setupDecision: 'inherit',
+    agent: null,
+    pendingFirstAgentMessageRename: false,
+    note: '',
+    startupPlan: null,
+    quickPrompt: '',
+    quickTelemetry: null,
+    ...overrides
+  }
+}
+
+function pending(
+  creationId: string,
+  creationRequest: WorktreeCreationRequest
+): PendingWorktreeCreation {
+  return {
+    creationId,
+    phase: 'preparing',
+    status: 'creating',
+    startedAt: 1,
+    indeterminate: false,
+    loaderVisible: true,
+    request: creationRequest
+  }
+}
+
+describe('findPendingLinkedWorkItemCreationId', () => {
+  it('deduplicates the same linked item on the same execution host', () => {
+    const existing = request({
+      linkedIssue: 42,
+      workspaceRunContext: {
+        kind: 'workspace-run',
+        projectId: 'project-1',
+        hostId: 'ssh:server',
+        projectHostSetupId: 'setup-1',
+        repoId: 'repo-1',
+        path: '/repo'
+      }
+    })
+
+    expect(
+      findPendingLinkedWorkItemCreationId(
+        { existing: pending('existing', existing) },
+        request({
+          linkedIssue: 42,
+          workspaceRunContext: {
+            ...existing.workspaceRunContext!,
+            path: '/renamed-repo'
+          }
+        })
+      )
+    ).toBe('existing')
+  })
+
+  it('keeps the same linked item on different execution hosts distinct', () => {
+    const existing = request({
+      linkedPR: 77,
+      workspaceRunContext: {
+        kind: 'workspace-run',
+        projectId: 'project-1',
+        hostId: 'ssh:server-a',
+        projectHostSetupId: 'setup-a',
+        repoId: 'repo-1',
+        path: '/repo'
+      }
+    })
+
+    expect(
+      findPendingLinkedWorkItemCreationId(
+        { existing: pending('existing', existing) },
+        request({
+          linkedPR: 77,
+          workspaceRunContext: {
+            ...existing.workspaceRunContext!,
+            hostId: 'ssh:server-b',
+            projectHostSetupId: 'setup-b'
+          }
+        })
+      )
+    ).toBeNull()
+  })
+
+  it('does not deduplicate unlinked workspace creation', () => {
+    expect(
+      findPendingLinkedWorkItemCreationId({ existing: pending('existing', request()) }, request())
+    ).toBeNull()
+  })
+})
diff --git a/src/renderer/src/lib/pending-worktree-creation.ts b/src/renderer/src/lib/pending-worktree-creation.ts
index b06a1e4f646..d635e82555a 100644
--- a/src/renderer/src/lib/pending-worktree-creation.ts
+++ b/src/renderer/src/lib/pending-worktree-creation.ts
@@ -123,6 +123,29 @@ export type PendingWorktreeCreation = {
   request: WorktreeCreationRequest
 }
 
+export function findPendingLinkedWorkItemCreationId(
+  pendingCreations: Readonly<Record<string, PendingWorktreeCreation>>,
+  request: Pick<
+    WorktreeCreationRequest,
+    'repoId' | 'linkedIssue' | 'linkedPR' | 'workspaceRunContext'
+  >
+): string | null {
+  if (request.linkedIssue == null && request.linkedPR == null) {
+    return null
+  }
+  const hostId = request.workspaceRunContext?.hostId ?? null
+  const match = Object.values(pendingCreations).find((entry) => {
+    const pending = entry.request
+    return (
+      pending.repoId === request.repoId &&
+      pending.linkedIssue === request.linkedIssue &&
+      pending.linkedPR === request.linkedPR &&
+      (pending.workspaceRunContext?.hostId ?? null) === hostId
+    )
+  })
+  return match?.creationId ?? null
+}
+
 /** Human-readable progress line for an in-flight create, shared by the in-frame
  *  loader and the sidebar row so the two never drift. Caller handles the error
  *  case; this only covers the in-progress states. */
diff --git a/src/renderer/src/lib/project-host-workspace-target.test.ts b/src/renderer/src/lib/project-host-workspace-target.test.ts
index 528773d8e40..c799e18e456 100644
--- a/src/renderer/src/lib/project-host-workspace-target.test.ts
+++ b/src/renderer/src/lib/project-host-workspace-target.test.ts
@@ -91,6 +91,61 @@ describe('project-host workspace target resolution', () => {
     ).toBe('orca-ssh')
   })
 
+  it('matches duplicate repo ids to the setup execution host', () => {
+    const localRepo = makeRepo('orca', { path: '/local/orca' })
+    const sshRepo = makeRepo('orca', {
+      path: '/remote/orca',
+      connectionId: 'builder'
+    })
+    const projects = [makeProject('github:stablyai/orca', ['orca'])]
+    const projectHostSetups = [
+      makeSetup('local-setup', 'github:stablyai/orca', 'local', 'orca'),
+      makeSetup('ssh-setup', 'github:stablyai/orca', 'ssh:builder', 'orca')
+    ]
+
+    const resolution = resolveWorkspaceCreationTarget({
+      eligibleRepos: [localRepo, sshRepo],
+      projects,
+      projectHostSetups,
+      projectHostSetupId: 'ssh-setup'
+    })
+
+    expect(resolution).toMatchObject({
+      status: 'ready',
+      target: {
+        hostId: 'ssh:builder',
+        repo: { path: '/remote/orca', connectionId: 'builder' }
+      }
+    })
+  })
+
+  it('keeps a focused duplicate repo id on its selected host', () => {
+    const localRepo = makeRepo('orca', { path: '/local/orca' })
+    const sshRepo = makeRepo('orca', { path: '/remote/orca', connectionId: 'builder' })
+    const projects = [makeProject('github:stablyai/orca', ['orca'])]
+    const projectHostSetups = [
+      makeSetup('local-setup', 'github:stablyai/orca', 'local', 'orca'),
+      makeSetup('ssh-setup', 'github:stablyai/orca', 'ssh:builder', 'orca')
+    ]
+
+    expect(
+      resolveWorkspaceCreationTarget({
+        eligibleRepos: [localRepo, sshRepo],
+        projects,
+        projectHostSetups,
+        draftRepoId: 'orca',
+        focusedHostScope: 'ssh:builder'
+      })
+    ).toMatchObject({
+      status: 'ready',
+      target: {
+        hostId: 'ssh:builder',
+        projectHostSetupId: 'ssh-setup',
+        repo: { path: '/remote/orca', connectionId: 'builder' }
+      }
+    })
+  })
+
   it('resolves an explicit project and host to the matching setup', () => {
     const repos = [
       makeRepo('orca-local'),
diff --git a/src/renderer/src/lib/project-host-workspace-target.ts b/src/renderer/src/lib/project-host-workspace-target.ts
index a4234f7686d..da8aaf8b5cf 100644
--- a/src/renderer/src/lib/project-host-workspace-target.ts
+++ b/src/renderer/src/lib/project-host-workspace-target.ts
@@ -1,5 +1,6 @@
 import {
   ALL_EXECUTION_HOSTS_SCOPE,
+  getRepoExecutionHostId,
   type ExecutionHostId,
   type ExecutionHostScope
 } from '../../../shared/execution-host'
@@ -78,9 +79,12 @@ function isReadySetup(setup: ProjectHostSetup): boolean {
 
 function createTarget(
   setup: ProjectHostSetup,
-  repoById: ReadonlyMap<string, Repo>
+  reposById: ReadonlyMap<string, readonly Repo[]>
 ): WorkspaceCreationTarget | null {
-  const repo = repoById.get(setup.repoId)
+  const candidates = reposById.get(setup.repoId) ?? []
+  const repo =
+    candidates.find((candidate) => getRepoExecutionHostId(candidate) === setup.hostId) ??
+    (candidates.length === 1 ? candidates[0] : null)
   if (!repo) {
     return null
   }
@@ -96,14 +100,14 @@ function createTarget(
 
 function findReadySetupTarget(
   setups: readonly ProjectHostSetup[],
-  repoById: ReadonlyMap<string, Repo>,
+  reposById: ReadonlyMap<string, readonly Repo[]>,
   predicate: (setup: ProjectHostSetup) => boolean
 ): WorkspaceCreationTarget | null {
   for (const setup of setups) {
     if (!isReadySetup(setup) || !predicate(setup)) {
       continue
     }
-    const target = createTarget(setup, repoById)
+    const target = createTarget(setup, reposById)
     if (target) {
       return target
     }
@@ -120,7 +124,12 @@ export function resolveWorkspaceCreationTarget(
   }
 
   const model = getProjectSetupModel(input)
-  const repoById = new Map(eligibleRepos.map((repo) => [repo.id, repo]))
+  const reposById = new Map<string, Repo[]>()
+  for (const repo of eligibleRepos) {
+    const candidates = reposById.get(repo.id) ?? []
+    candidates.push(repo)
+    reposById.set(repo.id, candidates)
+  }
   const actionableHostIds = input.actionableHostIds
   const allSetups = model?.setups ?? []
   const setups = actionableHostIds
@@ -147,9 +156,9 @@ export function resolveWorkspaceCreationTarget(
     const canonical =
       findReadySetupTarget(
         setups,
-        repoById,
+        reposById,
         (entry) => entry.projectId === setup.projectId && entry.hostId === setup.hostId
-      ) ?? createTarget(setup, repoById)
+      ) ?? createTarget(setup, reposById)
     if (canonical) {
       return { status: 'ready', target: canonical }
     }
@@ -169,7 +178,7 @@ export function resolveWorkspaceCreationTarget(
     }
     const target = findReadySetupTarget(
       setups,
-      repoById,
+      reposById,
       (setup) => setup.projectId === projectId && setup.hostId === hostId
     )
     if (target) {
@@ -184,14 +193,14 @@ export function resolveWorkspaceCreationTarget(
     const focusedTarget = focusedHostId
       ? findReadySetupTarget(
           setups,
-          repoById,
+          reposById,
           (setup) => setup.projectId === projectId && setup.hostId === focusedHostId
         )
       : null
     if (focusedTarget) {
       return { status: 'ready', target: focusedTarget }
     }
-    const target = findReadySetupTarget(setups, repoById, (setup) => setup.projectId === projectId)
+    const target = findReadySetupTarget(setups, reposById, (setup) => setup.projectId === projectId)
     if (target) {
       return { status: 'ready', target }
     }
@@ -199,7 +208,7 @@ export function resolveWorkspaceCreationTarget(
   }
 
   if (hostId) {
-    const target = findReadySetupTarget(setups, repoById, (setup) => setup.hostId === hostId)
+    const target = findReadySetupTarget(setups, reposById, (setup) => setup.hostId === hostId)
     if (target) {
       return { status: 'ready', target }
     }
@@ -209,23 +218,33 @@ export function resolveWorkspaceCreationTarget(
   }
 
   const repoId = resolveComposerRepoId(input)
-  const legacyRepo = repoId ? repoById.get(repoId) : null
+  const legacyCandidates = repoId ? (reposById.get(repoId) ?? []) : []
+  const focusedLegacyRepo =
+    focusedHostScope && focusedHostScope !== ALL_EXECUTION_HOSTS_SCOPE
+      ? legacyCandidates.find((candidate) => getRepoExecutionHostId(candidate) === focusedHostScope)
+      : null
+  const legacyRepo =
+    focusedLegacyRepo ?? (legacyCandidates.length === 1 ? legacyCandidates[0] : null)
   if (!legacyRepo) {
     return { status: 'unavailable', reason: 'no-eligible-repo' }
   }
 
   const projectedLegacySetup = projectHostSetupProjectionFromRepos([legacyRepo]).setups[0]
+  const legacyHostId = getRepoExecutionHostId(legacyRepo)
   const legacySetup =
-    setups.find((setup) => setup.repoId === legacyRepo.id && isReadySetup(setup)) ??
+    setups.find(
+      (setup) =>
+        setup.repoId === legacyRepo.id && setup.hostId === legacyHostId && isReadySetup(setup)
+    ) ??
     (!actionableHostIds || actionableHostIds.has(projectedLegacySetup.hostId)
       ? projectedLegacySetup
       : null)
-  const legacyTarget = legacySetup ? createTarget(legacySetup, repoById) : null
+  const legacyTarget = legacySetup ? createTarget(legacySetup, reposById) : null
   if (legacyTarget) {
     return { status: 'ready', target: legacyTarget }
   }
   const fallbackTarget = actionableHostIds
-    ? findReadySetupTarget(setups, repoById, () => true)
+    ? findReadySetupTarget(setups, reposById, () => true)
     : null
   return fallbackTarget
     ? { status: 'ready', target: fallbackTarget }
diff --git a/src/renderer/src/lib/worktree-creation-flow-dedupe.test.ts b/src/renderer/src/lib/worktree-creation-flow-dedupe.test.ts
new file mode 100644
index 00000000000..5271779a2bd
--- /dev/null
+++ b/src/renderer/src/lib/worktree-creation-flow-dedupe.test.ts
@@ -0,0 +1,110 @@
+import { beforeEach, describe, expect, it, vi } from 'vitest'
+import type {
+  PendingWorktreeCreation,
+  WorktreeCreationRequest
+} from '@/lib/pending-worktree-creation'
+
+const store = {
+  settings: {
+    activeRuntimeEnvironmentId: null as string | null
+  },
+  pendingWorktreeCreations: {} as Record<string, PendingWorktreeCreation>,
+  beginPendingWorktreeCreation: vi.fn(),
+  setActivePendingWorktreeCreation: vi.fn(),
+  setActiveView: vi.fn(),
+  setSidebarOpen: vi.fn(),
+  createWorktree: vi.fn()
+}
+
+vi.mock('@/store', () => ({
+  useAppStore: {
+    getState: () => store
+  }
+}))
+
+vi.mock('@/lib/browser-uuid', () => ({
+  createBrowserUuid: () => 'creation-new'
+}))
+
+vi.mock('@/lib/worktree-activation', () => ({
+  activateAndRevealWorktree: vi.fn(),
+  ensureWorktreeHasInitialTerminal: vi.fn()
+}))
+
+vi.mock('@/lib/workspace-activation-terminal-focus', () => ({
+  queueWorkspaceActivationTerminalFocus: vi.fn()
+}))
+
+vi.mock('@/lib/new-workspace', () => ({
+  ensureAgentStartupInTerminal: vi.fn()
+}))
+
+vi.mock('sonner', () => ({
+  toast: { error: vi.fn() }
+}))
+
+vi.mock('@/lib/ephemeral-vm-workspace-target', () => ({
+  prepareEphemeralVmWorkspaceTarget: vi.fn()
+}))
+
+import { runBackgroundWorktreeCreation } from './worktree-creation-flow'
+
+function makeRequest(overrides: Partial<WorktreeCreationRequest> = {}): WorktreeCreationRequest {
+  return {
+    repoId: 'repo-1',
+    name: 'feature',
+    setupDecision: 'inherit',
+    agent: null,
+    pendingFirstAgentMessageRename: false,
+    note: '',
+    startupPlan: null,
+    quickPrompt: '',
+    quickTelemetry: null,
+    ...overrides
+  }
+}
+
+function makePendingCreation(request: WorktreeCreationRequest): PendingWorktreeCreation {
+  return {
+    creationId: 'existing',
+    phase: 'preparing',
+    status: 'creating',
+    startedAt: 1,
+    indeterminate: false,
+    loaderVisible: true,
+    request
+  }
+}
+
+describe('runBackgroundWorktreeCreation linked-item dedupe', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+    store.pendingWorktreeCreations = {}
+  })
+
+  it('reveals an existing linked-item creation instead of starting a duplicate', () => {
+    const linkedRequest = makeRequest({
+      linkedIssue: 42,
+      workspaceRunContext: {
+        kind: 'workspace-run',
+        projectId: 'project-1',
+        hostId: 'ssh:server',
+        projectHostSetupId: 'setup-1',
+        repoId: 'repo-1',
+        path: '/repo'
+      }
+    })
+    store.pendingWorktreeCreations = {
+      existing: makePendingCreation(linkedRequest)
+    }
+
+    const creationId = runBackgroundWorktreeCreation(linkedRequest)
+
+    expect(creationId).toBe('existing')
+    expect(store.setActivePendingWorktreeCreation).toHaveBeenCalledWith('existing')
+    expect(store.setActiveView).toHaveBeenCalledWith('terminal')
+    expect(store.setSidebarOpen).toHaveBeenCalledWith(true)
+    expect(store.beginPendingWorktreeCreation).not.toHaveBeenCalled()
+    expect(store.createWorktree).not.toHaveBeenCalled()
+  })
+})
diff --git a/src/renderer/src/lib/worktree-creation-flow-startup.ts b/src/renderer/src/lib/worktree-creation-flow-startup.ts
new file mode 100644
index 00000000000..4c946e0cf63
--- /dev/null
+++ b/src/renderer/src/lib/worktree-creation-flow-startup.ts
@@ -0,0 +1,50 @@
+import { useAppStore } from '@/store'
+import { getActiveRuntimeTarget } from '@/runtime/runtime-rpc-client'
+import type { WorktreeStartupPayload } from '@/lib/worktree-activation'
+import type {
+  WorktreeCreationPhase,
+  WorktreeCreationRequest
+} from '@/lib/pending-worktree-creation'
+
+// Why: mirrors the startup-opt the composer used to build inline. The renderer
+// only seeds the first terminal when the backend did not already spawn it.
+export function buildWorktreeCreationStartupOpt(
+  request: WorktreeCreationRequest,
+  backendSpawned: boolean
+): WorktreeStartupPayload | undefined {
+  const plan = request.startupPlan
+  if (!plan || backendSpawned) {
+    return undefined
+  }
+  return {
+    command: plan.launchCommand,
+    ...(plan.env ? { env: plan.env } : {}),
+    launchConfig: plan.launchConfig,
+    ...(plan.launchToken ? { launchToken: plan.launchToken } : {}),
+    ...(request.agent ? { launchAgent: request.agent } : {}),
+    ...(plan.draftPrompt ? { draftPrompt: plan.draftPrompt } : {}),
+    // Why: view-mode only. An argv-prefill plan sets no draftPrompt, so this is
+    // the sole signal that this launch starts with unsent context in the TUI.
+    ...(request.launchDraftPrompt ? { launchDraftText: request.launchDraftPrompt } : {}),
+    ...(plan.startupCommandDelivery ? { startupCommandDelivery: plan.startupCommandDelivery } : {}),
+    // Why: command-code shows its prompt in the tab status before the first
+    // hook fires, so the prompt is threaded through here.
+    ...(request.agent === 'command-code' && request.quickPrompt.trim().length > 0
+      ? { initialAgentStatus: { agent: request.agent, prompt: request.quickPrompt.trim() } }
+      : {}),
+    ...(request.quickTelemetry ? { telemetry: request.quickTelemetry } : {})
+  }
+}
+
+export function getWorktreeCreationIndeterminate(request: WorktreeCreationRequest): boolean {
+  if (request.worktreeCreateProgressMode) {
+    return request.worktreeCreateProgressMode === 'indeterminate'
+  }
+  return getActiveRuntimeTarget(useAppStore.getState().settings).kind !== 'local'
+}
+
+export function getInitialWorktreeCreationPhase(
+  request: WorktreeCreationRequest
+): WorktreeCreationPhase {
+  return request.ephemeralVmRecipe && !request.ephemeralVmRuntimeId ? 'provisioning-vm' : 'fetching'
+}
diff --git a/src/renderer/src/lib/worktree-creation-flow.ts b/src/renderer/src/lib/worktree-creation-flow.ts
index d433520caf6..83451b8ce9f 100644
--- a/src/renderer/src/lib/worktree-creation-flow.ts
+++ b/src/renderer/src/lib/worktree-creation-flow.ts
@@ -4,12 +4,10 @@ import { TUI_AGENT_CONFIG } from '../../../shared/tui-agent-config'
 import {
   activateAndRevealWorktree,
   ensureWorktreeHasInitialTerminal,
-  type ActivateAndRevealResult,
-  type WorktreeStartupPayload
+  type ActivateAndRevealResult
 } from '@/lib/worktree-activation'
 import { ensureAgentStartupInTerminal } from '@/lib/new-workspace'
 import { queueWorkspaceActivationTerminalFocus } from '@/lib/workspace-activation-terminal-focus'
-import { getActiveRuntimeTarget } from '@/runtime/runtime-rpc-client'
 import {
   attachEphemeralVmRuntimeToWorkspace,
   cleanupEphemeralVmRuntimeForFailedCreate,
@@ -20,59 +18,24 @@ import {
   getWorkspaceCreateErrorToastMessage
 } from '@/lib/workspace-create-error-format'
 import type { CreateWorktreeResult } from '../../../shared/types'
-import type {
-  WorktreeCreationPhase,
-  WorktreeCreationRequest
+import {
+  findPendingLinkedWorkItemCreationId,
+  type WorktreeCreationPhase,
+  type WorktreeCreationRequest
 } from '@/lib/pending-worktree-creation'
 import { createBrowserUuid } from '@/lib/browser-uuid'
 import { seedAgentTabStateAfterWorktreeCreate } from '@/lib/worktree-creation-agent-seeds'
 import { resolveBackendDraftStartup } from '@/lib/worktree-draft-startup-view-mode'
+import {
+  buildWorktreeCreationStartupOpt,
+  getInitialWorktreeCreationPhase,
+  getWorktreeCreationIndeterminate
+} from '@/lib/worktree-creation-flow-startup'
 
 type ContinueBackgroundWorktreeCreationOptions = {
   revealCreationSurface?: boolean
 }
 
-// Why: mirrors the startup-opt the composer used to build inline. The renderer
-// only seeds the first terminal when the backend did not already spawn it.
-function buildStartupOpt(
-  request: WorktreeCreationRequest,
-  backendSpawned: boolean
-): WorktreeStartupPayload | undefined {
-  const plan = request.startupPlan
-  if (!plan || backendSpawned) {
-    return undefined
-  }
-  return {
-    command: plan.launchCommand,
-    ...(plan.env ? { env: plan.env } : {}),
-    launchConfig: plan.launchConfig,
-    ...(plan.launchToken ? { launchToken: plan.launchToken } : {}),
-    ...(request.agent ? { launchAgent: request.agent } : {}),
-    ...(plan.draftPrompt ? { draftPrompt: plan.draftPrompt } : {}),
-    // Why: view-mode only. An argv-prefill plan sets no draftPrompt, so this is
-    // the sole signal that this launch starts with unsent context in the TUI.
-    ...(request.launchDraftPrompt ? { launchDraftText: request.launchDraftPrompt } : {}),
-    ...(plan.startupCommandDelivery ? { startupCommandDelivery: plan.startupCommandDelivery } : {}),
-    // Why: command-code shows its prompt in the tab status before the first
-    // hook fires, so the prompt is threaded through here.
-    ...(request.agent === 'command-code' && request.quickPrompt.trim().length > 0
-      ? { initialAgentStatus: { agent: request.agent, prompt: request.quickPrompt.trim() } }
-      : {}),
-    ...(request.quickTelemetry ? { telemetry: request.quickTelemetry } : {})
-  }
-}
-
-function getWorktreeCreationIndeterminate(request: WorktreeCreationRequest): boolean {
-  if (request.worktreeCreateProgressMode) {
-    return request.worktreeCreateProgressMode === 'indeterminate'
-  }
-  return getActiveRuntimeTarget(useAppStore.getState().settings).kind !== 'local'
-}
-
-function getInitialWorktreeCreationPhase(request: WorktreeCreationRequest): WorktreeCreationPhase {
-  return request.ephemeralVmRecipe && !request.ephemeralVmRuntimeId ? 'provisioning-vm' : 'fetching'
-}
-
 // Why: activePendingCreationId can outlive the terminal route when the user
 // switches app views; only the terminal route renders the creation panel.
 function isPendingCreationSurfaceVisible(creationId: string): boolean {
@@ -220,7 +183,7 @@ async function executeWorktreeCreation(
     // startup, so both halves of the handoff share one renderer-session token.
     preparedRequest.startupPlan.launchToken = createBrowserUuid()
   }
-  const startupOpt = buildStartupOpt(preparedRequest, backendSpawned)
+  const startupOpt = buildWorktreeCreationStartupOpt(preparedRequest, backendSpawned)
 
   if (worktree.path) {
     const repoConnectionId =
@@ -305,12 +268,24 @@ async function executeWorktreeCreation(
  * immediately and the work outlives the now-closed modal. Progress and errors
  * surface on the pending creation's sidebar row and content panel.
  */
-export function runBackgroundWorktreeCreation(request: WorktreeCreationRequest): void {
+export function runBackgroundWorktreeCreation(request: WorktreeCreationRequest): string {
+  const store = useAppStore.getState()
+  const existingCreationId = findPendingLinkedWorkItemCreationId(
+    store.pendingWorktreeCreations,
+    request
+  )
+  if (existingCreationId) {
+    store.setActivePendingWorktreeCreation(existingCreationId)
+    store.setActiveView('terminal')
+    store.setSidebarOpen(true)
+    return existingCreationId
+  }
   // Why: crypto.randomUUID is undefined in non-secure browser contexts (LAN web
   // client over plain HTTP). createBrowserUuid falls back to getRandomValues.
   const creationId = createBrowserUuid()
   revealPendingCreation(creationId, request, getInitialWorktreeCreationPhase(request))
   void executeWorktreeCreation(creationId, request)
+  return creationId
 }
 
 /** Stage a pending entry before async preflight so the UI shows immediate progress. */