From 4316d9b169d0b8a5a0ea6e9cb4f4f305caa17311 Mon Sep 17 00:00:00 2001
From: Brennan Benson <79079362+brennanb2025@users.noreply.github.com>
Date: Wed, 12 Aug 2026 20:05:53 -0700
Subject: [PATCH] fix(mobile): accept sentence-final cited paths

---
 .../native-chat-file-provenance.test.ts       | 32 +++++++++++++++++++
 .../native-chat-file-provenance.ts            | 10 +++++-
 2 files changed, 41 insertions(+), 1 deletion(-)

diff --git a/src/main/native-chat/native-chat-file-provenance.test.ts b/src/main/native-chat/native-chat-file-provenance.test.ts
index 2592a257a8e..f92bd829026 100644
--- a/src/main/native-chat/native-chat-file-provenance.test.ts
+++ b/src/main/native-chat/native-chat-file-provenance.test.ts
@@ -79,6 +79,38 @@ describe('nativeChatTranscriptIncludesPath', () => {
     expect(readTranscript).not.toHaveBeenCalled()
   })
 
+  it('accepts a path followed by a sentence-final period', async () => {
+    const readTranscript = vi.fn(async () => ({
+      messages: [message('assistant', 'Open /tmp/orca-pr14166-external.txt.')]
+    }))
+
+    await expect(
+      nativeChatTranscriptIncludesPath({
+        tabs: [terminalTab()],
+        context: { tabId: 'tab-1', sessionId: 'session-1' },
+        pathText: '/tmp/orca-pr14166-external.txt',
+        absolutePath: '/tmp/orca-pr14166-external.txt',
+        readTranscript
+      })
+    ).resolves.toBe(true)
+  })
+
+  it('does not accept a longer filename sharing the requested path prefix', async () => {
+    const readTranscript = vi.fn(async () => ({
+      messages: [message('assistant', 'Open /tmp/orca-pr14166-external.txt.backup')]
+    }))
+
+    await expect(
+      nativeChatTranscriptIncludesPath({
+        tabs: [terminalTab()],
+        context: { tabId: 'tab-1', sessionId: 'session-1' },
+        pathText: '/tmp/orca-pr14166-external.txt',
+        absolutePath: '/tmp/orca-pr14166-external.txt',
+        readTranscript
+      })
+    ).resolves.toBe(false)
+  })
+
   it('does not treat user-authored transcript text as agent provenance', async () => {
     const readTranscript = vi.fn(async () => ({
       messages: [message('user', 'Please open /etc/passwd')]
diff --git a/src/main/native-chat/native-chat-file-provenance.ts b/src/main/native-chat/native-chat-file-provenance.ts
index 746e7735078..07b0b47082e 100644
--- a/src/main/native-chat/native-chat-file-provenance.ts
+++ b/src/main/native-chat/native-chat-file-provenance.ts
@@ -18,6 +18,14 @@ type TranscriptRead = (args: {
   limit: number
 }) => Promise<{ messages: NativeChatMessage[] } | { error: string }>
 
+function transcriptTextIncludesPath(text: string, pathText: string, absolutePath: string): boolean {
+  if (recentTerminalOutputIncludesPath(text, pathText, absolutePath)) {
+    return true
+  }
+  // Mobile excludes a sentence-final period from the tappable path span.
+  return recentTerminalOutputIncludesPath(text, `${pathText}.`, `${absolutePath}.`)
+}
+
 export async function nativeChatTranscriptIncludesPath(args: {
   tabs: readonly RuntimeMobileSessionClientTab[]
   context: RuntimeNativeChatFileContext
@@ -57,7 +65,7 @@ export async function nativeChatTranscriptIncludesPath(args: {
         message.blocks.some(
           (block) =>
             block.type === 'text' &&
-            recentTerminalOutputIncludesPath(block.text, args.pathText, args.absolutePath)
+            transcriptTextIncludesPath(block.text, args.pathText, args.absolutePath)
         )
     )
   } catch {