diff --git a/tests/e2e/github-created-issue-start-prefill.spec.ts b/tests/e2e/github-created-issue-start-prefill.spec.ts
new file mode 100644
index 000000000..c3e6d4082
--- /dev/null
+++ b/tests/e2e/github-created-issue-start-prefill.spec.ts
@@ -0,0 +1,187 @@
+import { execFileSync } from 'node:child_process'
+import { chmodSync, mkdtempSync, rmSync, writeFileSync } from 'node:fs'
+import os from 'node:os'
+import path from 'node:path'
+import { test as base, expect } from './helpers/orca-app'
+import { waitForActiveWorktree, waitForSessionReady } from './helpers/store'
+import { getTerminalContent } from './helpers/terminal'
+
+const ISSUE_NUMBER = 6613
+const ISSUE_TITLE = 'Start a newly created issue without losing its context'
+const ISSUE_URL = `https://github.com/acme/repo/issues/${ISSUE_NUMBER}`
+const fakeCliDir = mkdtempSync(path.join(os.tmpdir(), 'orca-e2e-created-issue-prefill-'))
+
+const fakeGhSource = `
+const args = process.argv.slice(2)
+const joined = args.join(' ')
+const issue = {
+  number: ${ISSUE_NUMBER},
+  title: ${JSON.stringify(ISSUE_TITLE)},
+  state: 'open',
+  html_url: ${JSON.stringify(ISSUE_URL)},
+  labels: [],
+  assignees: [],
+  user: { login: 'e2e' },
+  updated_at: '2026-07-22T12:00:00.000Z'
+}
+
+if (args[0] === 'auth' && args[1] === 'status') {
+  console.error('github.com\\n  ✓ Logged in to github.com account e2e (GITHUB_TOKEN)')
+  process.exit(0)
+}
+if (args[0] === 'api' && args[1] === 'user') {
+  console.log(JSON.stringify({ login: 'e2e' }))
+  process.exit(0)
+}
+if (args[0] === 'api' && args.includes('rate_limit')) {
+  console.log(JSON.stringify({ resources: { core: { limit: 5000, remaining: 5000, reset: 0 }, graphql: { limit: 5000, remaining: 5000, reset: 0 }, search: { limit: 30, remaining: 30, reset: 0 } } }))
+  process.exit(0)
+}
+if (args[0] === 'api' && args.includes('-X') && args.includes('POST') && joined.includes('repos/acme/repo/issues')) {
+  console.log(JSON.stringify(issue))
+  process.exit(0)
+}
+if (args[0] === 'api' && joined.includes('/labels')) {
+  process.exit(0)
+}
+if (args[0] === 'api' && joined.includes('/assignees')) {
+  process.exit(0)
+}
+if (args[0] === 'api' && joined.includes('repos/acme/repo/issues/${ISSUE_NUMBER}')) {
+  console.log(JSON.stringify(issue))
+  process.exit(0)
+}
+if (args[0] === 'api' && joined.includes('search/issues')) {
+  console.log(JSON.stringify({ total_count: 0, incomplete_results: false, items: [] }))
+  process.exit(0)
+}
+if (args[0] === 'issue' && args[1] === 'list') {
+  console.log('[]')
+  process.exit(0)
+}
+if (args[0] === 'pr' && args[1] === 'list') {
+  console.log('[]')
+  process.exit(0)
+}
+if (args[0] === 'api' && args[1] === 'graphql') {
+  console.log(JSON.stringify({ data: { search: { issueCount: 0, pageInfo: { hasNextPage: false, endCursor: null }, nodes: [] } } }))
+  process.exit(0)
+}
+console.error('fake gh: unhandled ' + joined)
+process.exit(1)
+`
+
+const fakeClaudeSource = `
+const args = process.argv.slice(2)
+process.stdout.write('E2E_CLAUDE_ARGV ' + JSON.stringify(args) + '\\n')
+setInterval(() => {}, 60_000)
+`
+
+function installFakeCli(name: 'gh' | 'claude', source: string): void {
+  if (process.platform === 'win32') {
+    writeFileSync(path.join(fakeCliDir, `fake-${name}.js`), source)
+    writeFileSync(
+      path.join(fakeCliDir, `${name}.cmd`),
+      `@echo off\r\nnode "%~dp0\\fake-${name}.js" %*\r\n`
+    )
+    return
+  }
+  const executable = path.join(fakeCliDir, name)
+  writeFileSync(executable, `#!/usr/bin/env node\n${source}`)
+  chmodSync(executable, 0o755)
+}
+
+installFakeCli('gh', fakeGhSource)
+installFakeCli('claude', fakeClaudeSource)
+
+const test = base.extend({
+  launchEnv: [
+    {
+      PATH: `${fakeCliDir}${path.delimiter}${process.env.PATH ?? ''}`
+    },
+    { option: true }
+  ]
+})
+
+test.afterAll(() => {
+  rmSync(fakeCliDir, { recursive: true, force: true })
+})
+
+function configureGitHubRemote(repoPath: string): void {
+  try {
+    execFileSync('git', ['remote', 'remove', 'origin'], { cwd: repoPath, stdio: 'ignore' })
+  } catch {
+    // The disposable E2E repo does not have an origin on its first run.
+  }
+  execFileSync('git', ['remote', 'add', 'origin', 'https://github.com/acme/repo.git'], {
+    cwd: repoPath,
+    stdio: 'pipe'
+  })
+}
+
+test('starting a just-created GitHub issue launches Claude with its URL prefilled', async ({
+  orcaPage,
+  testRepoPath
+}) => {
+  configureGitHubRemote(testRepoPath)
+  await waitForSessionReady(orcaPage)
+  await waitForActiveWorktree(orcaPage)
+
+  await orcaPage.evaluate(async () => {
+    const store = window.__store
+    if (!store) {
+      throw new Error('window.__store is not available')
+    }
+    const state = store.getState()
+    const preparedWorkspace = state
+      .allWorktrees()
+      .find((worktree) => worktree.branch?.endsWith('e2e-secondary'))
+    if (!preparedWorkspace) {
+      throw new Error('Seeded secondary E2E worktree is not available')
+    }
+    // Why: this regression owns renderer-to-PTY command propagation, while the shared fixture already covers Git worktree creation.
+    store.setState({
+      createWorktree: async () => ({ worktree: preparedWorkspace })
+    })
+    await state.updateSettings({
+      defaultTuiAgent: 'claude',
+      disabledTuiAgents: [],
+      ...(navigator.userAgent.includes('Windows') ? { terminalWindowsShell: 'git-bash' } : {})
+    })
+    store.getState().openTaskPage({ taskSource: 'github' })
+  })
+
+  const newIssueButton = orcaPage.getByRole('button', { name: 'New GitHub issue' })
+  await expect(newIssueButton).toBeEnabled({ timeout: 15_000 })
+  await newIssueButton.click()
+
+  const createDialog = orcaPage.getByRole('dialog', { name: 'New GitHub issue' })
+  await expect(createDialog).toBeVisible()
+  await createDialog.getByPlaceholder('Short summary').fill(ISSUE_TITLE)
+  await createDialog.getByRole('button', { name: 'Create issue' }).click()
+
+  await expect(createDialog).toBeHidden({ timeout: 10_000 })
+  await expect(orcaPage.getByRole('heading', { name: ISSUE_TITLE })).toBeVisible({
+    timeout: 10_000
+  })
+
+  await orcaPage.getByRole('button', { name: 'Start workspace from issue' }).click()
+
+  let terminalText = ''
+  await expect
+    .poll(
+      async () => {
+        terminalText = await getTerminalContent(orcaPage, 12_000)
+        return terminalText
+      },
+      {
+        timeout: 30_000,
+        message: 'Claude prefill command did not reach the active terminal buffer'
+      }
+    )
+    .toContain('--prefill')
+  expect(terminalText).toContain('--dangerously-skip-permissions')
+  expect(terminalText).toContain('--prefill')
+  expect(terminalText).toContain(ISSUE_URL)
+  expect(terminalText).not.toMatch(/(?:^|\n)claude '--dangerously-skip-permissions'(?:\r?\n|$)/)
+})