diff --git a/src/renderer/src/components/right-sidebar/SourceControl.hosted-review-header-link.test.tsx b/src/renderer/src/components/right-sidebar/SourceControl.hosted-review-header-link.test.tsx
new file mode 100644
index 00000000000..194221a48e4
--- /dev/null
+++ b/src/renderer/src/components/right-sidebar/SourceControl.hosted-review-header-link.test.tsx
@@ -0,0 +1,60 @@
+import React from 'react'
+import { renderToStaticMarkup } from 'react-dom/server'
+import { describe, expect, it, vi } from 'vitest'
+import type { HostedReviewInfo } from '../../../../shared/hosted-review'
+import { HostedReviewHeaderLink } from './SourceControl'
+
+function makeReview(overrides: Partial<HostedReviewInfo> = {}): HostedReviewInfo {
+  return {
+    provider: 'github',
+    number: 2192,
+    title: 'Open PR in checks',
+    state: 'open',
+    url: 'https://github.com/stablyai/orca/pull/2192',
+    status: 'pending',
+    updatedAt: '2026-05-17T00:00:00Z',
+    mergeable: 'UNKNOWN',
+    ...overrides
+  }
+}
+
+type MinimalClickEvent = Pick<React.MouseEvent, 'stopPropagation'>
+
+describe('HostedReviewHeaderLink', () => {
+  it('opens GitHub PRs in the Checks tab instead of rendering an external link', () => {
+    const onOpenGitHubPRInChecks = vi.fn()
+    const element = HostedReviewHeaderLink({
+      review: makeReview(),
+      onOpenGitHubPRInChecks
+    })
+    const markup = renderToStaticMarkup(element)
+
+    expect(markup).toContain('<button')
+    expect(markup).toContain('PR #2192')
+    expect(markup).not.toContain('href=')
+    expect(markup).not.toContain('target="_blank"')
+
+    const stopPropagation = vi.fn()
+    ;(element.props.onClick as (event: MinimalClickEvent) => void)({ stopPropagation })
+    expect(stopPropagation).toHaveBeenCalledTimes(1)
+    expect(onOpenGitHubPRInChecks).toHaveBeenCalledTimes(1)
+  })
+
+  it('keeps non-GitHub reviews as external hosted-review links', () => {
+    const markup = renderToStaticMarkup(
+      <HostedReviewHeaderLink
+        review={makeReview({
+          provider: 'gitlab',
+          number: 31,
+          url: 'https://gitlab.com/acme/widgets/-/merge_requests/31'
+        })}
+        onOpenGitHubPRInChecks={vi.fn()}
+      />
+    )
+
+    expect(markup).toContain('<a')
+    expect(markup).toContain('href="https://gitlab.com/acme/widgets/-/merge_requests/31"')
+    expect(markup).toContain('target="_blank"')
+    expect(markup).toContain('MR #31')
+  })
+})
diff --git a/src/renderer/src/components/right-sidebar/SourceControl.tsx b/src/renderer/src/components/right-sidebar/SourceControl.tsx
index afcc064b98e..bd20637ff01 100644
--- a/src/renderer/src/components/right-sidebar/SourceControl.tsx
+++ b/src/renderer/src/components/right-sidebar/SourceControl.tsx
@@ -304,6 +304,51 @@ function HostedReviewIcon({
   return <Icon className={cn(className, hostedReviewStateClass(review))} />
 }
 
+function hostedReviewLabel(review: HostedReviewInfo): string {
+  return `${review.provider === 'gitlab' ? 'MR' : 'PR'} #${review.number}`
+}
+
+export function HostedReviewHeaderLink({
+  review,
+  onOpenGitHubPRInChecks
+}: {
+  review: HostedReviewInfo
+  onOpenGitHubPRInChecks: () => void
+}): React.JSX.Element {
+  const label = hostedReviewLabel(review)
+  const className =
+    'shrink-0 border-0 bg-transparent p-0 text-left font-medium leading-none text-foreground opacity-80 hover:text-foreground hover:underline'
+
+  if (review.provider === 'github') {
+    return (
+      <button
+        type="button"
+        className={className}
+        onClick={(e) => {
+          e.stopPropagation()
+          // Why: GitHub PR details already live in Orca's Checks tab; keep
+          // the sidebar workflow in-app instead of opening the browser.
+          onOpenGitHubPRInChecks()
+        }}
+      >
+        {label}
+      </button>
+    )
+  }
+
+  return (
+    <a
+      href={review.url}
+      target="_blank"
+      rel="noreferrer"
+      className={className}
+      onClick={(e) => e.stopPropagation()}
+    >
+      {label}
+    </a>
+  )
+}
+
 function SourceControlInner(): React.JSX.Element {
   const sourceControlRef = useRef<HTMLDivElement>(null)
   // Why: React setState is async, so a rapid double-click on the Commit
@@ -1285,6 +1330,11 @@ function SourceControlInner(): React.JSX.Element {
     ]
   )
 
+  const openHostedGitHubPRInChecks = useCallback(() => {
+    setRightSidebarOpen(true)
+    setRightSidebarTab('checks')
+  }, [setRightSidebarOpen, setRightSidebarTab])
+
   const hasUnstagedChanges = grouped.unstaged.length > 0 || grouped.untracked.length > 0
   const hasPartiallyStagedChanges = useMemo(() => {
     if (grouped.staged.length === 0 || grouped.unstaged.length === 0) {
@@ -2434,15 +2484,10 @@ function SourceControlInner(): React.JSX.Element {
           {hostedReview && (
             <div className="ml-auto mb-1.5 flex items-center gap-1.5 min-w-0 text-[11.5px] leading-none">
               <HostedReviewIcon review={hostedReview} className="size-3 shrink-0" />
-              <a
-                href={hostedReview.url}
-                target="_blank"
-                rel="noreferrer"
-                className="text-foreground opacity-80 font-medium shrink-0 hover:text-foreground hover:underline"
-                onClick={(e) => e.stopPropagation()}
-              >
-                {hostedReview.provider === 'gitlab' ? 'MR' : 'PR'} #{hostedReview.number}
-              </a>
+              <HostedReviewHeaderLink
+                review={hostedReview}
+                onOpenGitHubPRInChecks={openHostedGitHubPRInChecks}
+              />
             </div>
           )}
         </div>