diff --git a/mobile/app/h/[hostId]/files/preview/[worktreeId].tsx b/mobile/app/h/[hostId]/files/preview/[worktreeId].tsx
index 65412d51958..df60f8fc117 100644
--- a/mobile/app/h/[hostId]/files/preview/[worktreeId].tsx
+++ b/mobile/app/h/[hostId]/files/preview/[worktreeId].tsx
@@ -10,6 +10,11 @@ export default function MobileFilePreviewRoute() {
     source?: string | string[]
     absolutePath?: string | string[]
     grantId?: string | string[]
+    terminal?: string | string[]
+    pathText?: string | string[]
+    cwd?: string | string[]
+    nativeChatTab?: string | string[]
+    nativeChatSession?: string | string[]
     line?: string | string[]
     column?: string | string[]
     name?: string | string[]
diff --git a/mobile/app/h/[hostId]/session/[worktreeId].tsx b/mobile/app/h/[hostId]/session/[worktreeId].tsx
index cf0f1dd7edb..aa59f6df7cb 100644
--- a/mobile/app/h/[hostId]/session/[worktreeId].tsx
+++ b/mobile/app/h/[hostId]/session/[worktreeId].tsx
@@ -3085,6 +3085,10 @@ export default function SessionScreen() {
     hostId,
     worktreeId,
     worktreeName: routeWorktreeName,
+    nativeChatSessionId:
+      activeSessionTab?.type === 'terminal'
+        ? (activeSessionTab.agentStatus?.providerSession?.id ?? null)
+        : null,
     activeHandleRef,
     terminalCwdRef,
     openBrowser: (url) => void handleCreateBrowserRef.current?.(url),
diff --git a/mobile/src/files/mobile-file-preview-request.test.ts b/mobile/src/files/mobile-file-preview-request.test.ts
index f7f77fabd19..48bd26a71db 100644
--- a/mobile/src/files/mobile-file-preview-request.test.ts
+++ b/mobile/src/files/mobile-file-preview-request.test.ts
@@ -179,6 +179,37 @@ describe('mobile-file-preview-request', () => {
     })
   })
 
+  it('refreshes a native-chat artifact grant with the same transcript provenance', async () => {
+    const client = clientWithResponses([
+      fail('terminal_file_grant_expired'),
+      ok({
+        exists: true,
+        isDirectory: false,
+        openTarget: {
+          kind: 'absolute-file',
+          absolutePath: '/Users/ada/orca-plans/result.html',
+          grantId: 'grant-2'
+        }
+      }),
+      ok({ content: '<h1>Result</h1>', truncated: false, byteLength: 15 })
+    ])
+
+    await loadMobileFilePreview(client, {
+      source: 'terminalArtifact',
+      worktreeId: 'wt-1',
+      absolutePath: '/Users/ada/orca-plans/result.html',
+      grantId: 'grant-1',
+      pathText: '~/orca-plans/result.html',
+      nativeChatContext: { tabId: 'tab-1', sessionId: 'session-1' }
+    })
+
+    expect(client.sendRequest).toHaveBeenNthCalledWith(2, 'files.resolveTerminalPath', {
+      worktree: 'id:wt-1',
+      pathText: '~/orca-plans/result.html',
+      nativeChatContext: { tabId: 'tab-1', sessionId: 'session-1' }
+    })
+  })
+
   it.each([
     ['terminal_file_grant_expired'],
     ['terminal_file_grant_mismatch'],
diff --git a/mobile/src/files/mobile-file-preview-route.test.ts b/mobile/src/files/mobile-file-preview-route.test.ts
index ac1888ed46f..784313464ee 100644
--- a/mobile/src/files/mobile-file-preview-route.test.ts
+++ b/mobile/src/files/mobile-file-preview-route.test.ts
@@ -65,6 +65,8 @@ describe('mobile-file-preview-route', () => {
       terminal: 'term-1',
       pathText: 'result.json',
       cwd: '/tmp/run',
+      nativeChatTab: 'tab-1',
+      nativeChatSession: 'session-1',
       line: '12',
       column: '3'
     })
@@ -80,6 +82,8 @@ describe('mobile-file-preview-route', () => {
         terminal: 'term-1',
         pathText: 'result.json',
         cwd: '/tmp/run',
+        nativeChatTab: 'tab-1',
+        nativeChatSession: 'session-1',
         line: '12',
         column: '3'
       }
diff --git a/mobile/src/files/mobile-file-preview-route.ts b/mobile/src/files/mobile-file-preview-route.ts
index 1b277de7faa..f0e7dfbbf49 100644
--- a/mobile/src/files/mobile-file-preview-route.ts
+++ b/mobile/src/files/mobile-file-preview-route.ts
@@ -10,6 +10,8 @@ export type MobileFilePreviewRouteParams = {
   terminal?: string
   pathText?: string
   cwd?: string
+  nativeChatTab?: string
+  nativeChatSession?: string
   line?: string
   column?: string
   name?: string
@@ -35,6 +37,8 @@ type RawPreviewRouteParams = {
   terminal?: MobileFilePreviewParamValue
   pathText?: MobileFilePreviewParamValue
   cwd?: MobileFilePreviewParamValue
+  nativeChatTab?: MobileFilePreviewParamValue
+  nativeChatSession?: MobileFilePreviewParamValue
   line?: MobileFilePreviewParamValue
   column?: MobileFilePreviewParamValue
   name?: MobileFilePreviewParamValue
@@ -76,6 +80,8 @@ export function normalizeMobileFilePreviewRouteParams(
         terminal: optionalSingleParam(params.terminal),
         pathText: optionalSingleParam(params.pathText),
         cwd: optionalSingleParam(params.cwd),
+        nativeChatTab: optionalSingleParam(params.nativeChatTab),
+        nativeChatSession: optionalSingleParam(params.nativeChatSession),
         line: optionalSingleParam(params.line),
         column: optionalSingleParam(params.column),
         name: optionalSingleParam(params.name),
diff --git a/mobile/src/files/mobile-file-preview-source.ts b/mobile/src/files/mobile-file-preview-source.ts
index b1b23757a6e..ae1c846ccfc 100644
--- a/mobile/src/files/mobile-file-preview-source.ts
+++ b/mobile/src/files/mobile-file-preview-source.ts
@@ -15,7 +15,15 @@ export function previewSourceFromRoute(
       grantId: params.grantId,
       ...(params.terminal ? { terminalHandle: params.terminal } : {}),
       ...(params.pathText ? { pathText: params.pathText } : {}),
-      ...(params.cwd ? { cwd: params.cwd } : {})
+      ...(params.cwd ? { cwd: params.cwd } : {}),
+      ...(params.nativeChatTab && params.nativeChatSession
+        ? {
+            nativeChatContext: {
+              tabId: params.nativeChatTab,
+              sessionId: params.nativeChatSession
+            }
+          }
+        : {})
     }
   }
   if (!params.relativePath) {
@@ -28,12 +36,12 @@ export function sourceKeyForPreview(source: MobileFilePreviewSource | null): str
   if (!source) {
     return null
   }
-  return source.source === 'terminalArtifact'
-    ? JSON.stringify([
-        'terminal',
-        source.worktreeId,
-        source.absolutePath,
-        source.terminalHandle ?? ''
-      ])
-    : JSON.stringify(['worktree', source.worktreeId, source.relativePath])
+  if (source.source !== 'terminalArtifact') {
+    return JSON.stringify(['worktree', source.worktreeId, source.relativePath])
+  }
+  const key = ['terminal', source.worktreeId, source.absolutePath, source.terminalHandle ?? '']
+  if (source.nativeChatContext) {
+    key.push(source.nativeChatContext.tabId, source.nativeChatContext.sessionId)
+  }
+  return JSON.stringify(key)
 }
diff --git a/mobile/src/files/mobile-terminal-artifact-grant-refresh.ts b/mobile/src/files/mobile-terminal-artifact-grant-refresh.ts
index a8864119be4..6e7d4329413 100644
--- a/mobile/src/files/mobile-terminal-artifact-grant-refresh.ts
+++ b/mobile/src/files/mobile-terminal-artifact-grant-refresh.ts
@@ -1,3 +1,4 @@
+import type { RuntimeNativeChatFileContext } from '../../../src/shared/runtime-types'
 import type { RpcClient } from '../transport/rpc-client'
 import type { RpcFailure, RpcResponse, RpcSuccess } from '../transport/types'
 import { isTerminalArtifactGrantError } from './terminal-artifact-grant-error'
@@ -12,6 +13,7 @@ export type MobileTerminalArtifactPreviewSource = {
   terminalHandle?: string
   pathText?: string
   cwd?: string
+  nativeChatContext?: RuntimeNativeChatFileContext
 }
 
 export type TerminalArtifactRetryOptions = {
@@ -32,7 +34,8 @@ export async function refreshTerminalArtifactSourceAfterGrantFailure(
     worktree: `id:${source.worktreeId}`,
     pathText: source.pathText ?? source.absolutePath,
     ...(source.cwd ? { cwd: source.cwd } : {}),
-    ...(source.terminalHandle ? { terminal: source.terminalHandle } : {})
+    ...(source.terminalHandle ? { terminal: source.terminalHandle } : {}),
+    ...(source.nativeChatContext ? { nativeChatContext: source.nativeChatContext } : {})
   })
   if (!refreshed.ok) {
     return null
@@ -51,7 +54,8 @@ export async function refreshTerminalArtifactSourceAfterGrantFailure(
     grantId: result.openTarget.grantId,
     ...(source.terminalHandle ? { terminalHandle: source.terminalHandle } : {}),
     ...(source.pathText ? { pathText: source.pathText } : {}),
-    ...(source.cwd ? { cwd: source.cwd } : {})
+    ...(source.cwd ? { cwd: source.cwd } : {}),
+    ...(source.nativeChatContext ? { nativeChatContext: source.nativeChatContext } : {})
   }
 }
 
diff --git a/mobile/src/session/mobile-file-tap-open.ts b/mobile/src/session/mobile-file-tap-open.ts
index 627d9a5ff39..13c306af649 100644
--- a/mobile/src/session/mobile-file-tap-open.ts
+++ b/mobile/src/session/mobile-file-tap-open.ts
@@ -1,5 +1,6 @@
 import type {
   RuntimeFileOpenResult,
+  RuntimeNativeChatFileContext,
   RuntimeTerminalPathResolution
 } from '../../../src/shared/runtime-types'
 import { filesystemPathToFileUri } from '../../../src/shared/file-uri-path'
@@ -22,6 +23,7 @@ export type OpenMobileFileTapOptions<T extends FileTapSessionTab> = {
   terminalHandle?: string | null
   pathText: string
   cwd?: string | null
+  nativeChatContext?: RuntimeNativeChatFileContext | null
   line: number | null
   column: number | null
   pushPreviewRoute: (href: ReturnType<typeof createMobileFilePreviewHref>) => void
@@ -80,7 +82,8 @@ async function openMobileFileTapAsync<T extends FileTapSessionTab>(
       ...(options.terminalHandle && options.terminalHandle.trim().length > 0
         ? { terminal: options.terminalHandle }
         : {}),
-      ...(options.cwd && options.cwd.trim().length > 0 ? { cwd: options.cwd } : {})
+      ...(options.cwd && options.cwd.trim().length > 0 ? { cwd: options.cwd } : {}),
+      ...(options.nativeChatContext ? { nativeChatContext: options.nativeChatContext } : {})
     },
     { timeoutMs: 10_000 }
   )
@@ -116,6 +119,12 @@ async function openMobileFileTapAsync<T extends FileTapSessionTab>(
         ...(options.terminalHandle && options.terminalHandle.trim().length > 0
           ? { terminal: options.terminalHandle }
           : {}),
+        ...(options.nativeChatContext
+          ? {
+              nativeChatTab: options.nativeChatContext.tabId,
+              nativeChatSession: options.nativeChatContext.sessionId
+            }
+          : {}),
         name: displayNameFromPath(resolved.openTarget.absolutePath),
         ...(options.line !== null ? { line: String(options.line) } : {}),
         ...(options.column !== null ? { column: String(options.column) } : {}),
diff --git a/mobile/src/session/mobile-native-chat-open-file.test.ts b/mobile/src/session/mobile-native-chat-open-file.test.ts
index d44530e5cd0..363edb90218 100644
--- a/mobile/src/session/mobile-native-chat-open-file.test.ts
+++ b/mobile/src/session/mobile-native-chat-open-file.test.ts
@@ -65,6 +65,53 @@ describe('openMobileNativeChatFileTap', () => {
     )
   })
 
+  it('carries the native-chat session identity into resolution and grant refresh', async () => {
+    const sendRequest = vi.fn(async () =>
+      ok({
+        worktree: 'wt-1',
+        relativePath: null,
+        absolutePath: '/Users/ada/orca-plans/result.html',
+        exists: true,
+        isDirectory: false,
+        openTarget: {
+          kind: 'absolute-file',
+          provider: 'local',
+          absolutePath: '/Users/ada/orca-plans/result.html',
+          grantId: 'grant-1'
+        }
+      })
+    )
+    const options = baseOptions({ sendRequest })
+
+    openMobileNativeChatFileTap({
+      ...options,
+      pathText: '~/orca-plans/result.html',
+      nativeChatContext: { tabId: 'tab-1', sessionId: 'session-1' }
+    })
+    await Promise.resolve()
+
+    expect(sendRequest).toHaveBeenCalledWith(
+      'files.resolveTerminalPath',
+      {
+        worktree: 'id:wt-1',
+        pathText: '~/orca-plans/result.html',
+        crossWorkspace: true,
+        nativeChatContext: { tabId: 'tab-1', sessionId: 'session-1' }
+      },
+      { timeoutMs: 10_000 }
+    )
+    expect(options.pushPreviewRoute).toHaveBeenCalledWith({
+      pathname: '/h/[hostId]/files/preview/[worktreeId]',
+      params: expect.objectContaining({
+        source: 'terminalArtifact',
+        absolutePath: '/Users/ada/orca-plans/result.html',
+        grantId: 'grant-1',
+        nativeChatTab: 'tab-1',
+        nativeChatSession: 'session-1'
+      })
+    })
+  })
+
   it('parses a :line:col citation and opens the mobile preview route', async () => {
     const sendRequest = vi.fn(async () => worktreeFileResolution('src/app.ts'))
     const options = baseOptions({ sendRequest })
diff --git a/mobile/src/session/use-mobile-file-tap-handlers.test.ts b/mobile/src/session/use-mobile-file-tap-handlers.test.ts
index 0cfa617f269..21f07562459 100644
--- a/mobile/src/session/use-mobile-file-tap-handlers.test.ts
+++ b/mobile/src/session/use-mobile-file-tap-handlers.test.ts
@@ -34,12 +34,13 @@ describe('useMobileFileTapHandlers', () => {
       hostId: 'host-1',
       worktreeId: 'wt-1',
       worktreeName: 'Orca',
+      nativeChatSessionId: 'session-1',
       activeHandleRef: { current: 'terminal-1' as string | null },
       terminalCwdRef: { current: new Map([['terminal-1', '/repo/sub']]) },
       openBrowser: vi.fn(),
       fetchSessionTabs: vi.fn(async () => {}),
       getSessionTabs: () => [],
-      getActiveSessionTabId: () => null,
+      getActiveSessionTabId: () => 'terminal-tab',
       getActiveSessionTabType: () => 'terminal',
       switchSessionTab: vi.fn(),
       scheduleDelayedAction: vi.fn(),
@@ -131,7 +132,12 @@ describe('useMobileFileTapHandlers', () => {
 
     expect(sendRequest).toHaveBeenCalledWith(
       'files.resolveTerminalPath',
-      { worktree: 'id:wt-1', pathText: 'mobile/src/x.ts', crossWorkspace: true },
+      {
+        worktree: 'id:wt-1',
+        pathText: 'mobile/src/x.ts',
+        crossWorkspace: true,
+        nativeChatContext: { tabId: 'terminal-tab', sessionId: 'session-1' }
+      },
       { timeoutMs: 10_000 }
     )
     expect(options.reportChatTapFailure).toHaveBeenCalledWith("Couldn't open mobile/src/x.ts:12")
diff --git a/mobile/src/session/use-mobile-file-tap-handlers.ts b/mobile/src/session/use-mobile-file-tap-handlers.ts
index 276be5b566f..67995115f45 100644
--- a/mobile/src/session/use-mobile-file-tap-handlers.ts
+++ b/mobile/src/session/use-mobile-file-tap-handlers.ts
@@ -10,6 +10,7 @@ type MobileFileTapHandlerOptions<T extends FileTapSessionTab> = {
   hostId: string
   worktreeId: string
   worktreeName?: string
+  nativeChatSessionId: string | null
   activeHandleRef: MutableRefObject<string | null>
   terminalCwdRef: MutableRefObject<Map<string, string>>
   openBrowser: (url: string) => void
@@ -48,6 +49,7 @@ export function useMobileFileTapHandlers<T extends FileTapSessionTab>(
     getActiveSessionTabType,
     getSessionTabs,
     hostId,
+    nativeChatSessionId,
     openBrowser,
     scheduleDelayedAction,
     reportChatTapFailure,
@@ -71,6 +73,7 @@ export function useMobileFileTapHandlers<T extends FileTapSessionTab>(
       getActiveSessionTabType,
       getSessionTabs,
       hostId,
+      nativeChatSessionId,
       openBrowser,
       scheduleDelayedAction,
       reportChatTapFailure,
@@ -87,6 +90,7 @@ export function useMobileFileTapHandlers<T extends FileTapSessionTab>(
     getActiveSessionTabType,
     getSessionTabs,
     hostId,
+    nativeChatSessionId,
     openBrowser,
     router,
     scheduleDelayedAction,
@@ -144,12 +148,18 @@ export function useMobileFileTapHandlers<T extends FileTapSessionTab>(
       return
     }
     const activationSeq = ++activationSeqRef.current
+    const nativeChatSessionId = current.nativeChatSessionId
+    const nativeChatTabId = current.getActiveSessionTabId()
     openMobileNativeChatFileTap<T>({
       client: current.client,
       hostId: current.hostId,
       worktreeId: current.worktreeId,
       worktreeName: current.worktreeName,
       pathText,
+      nativeChatContext:
+        nativeChatSessionId && nativeChatTabId
+          ? { tabId: nativeChatTabId, sessionId: nativeChatSessionId }
+          : null,
       pushPreviewRoute: (href) => routerRef.current.push(href),
       openBrowser: current.openBrowser,
       triggerOpenFeedback: triggerSelection,
diff --git a/src/main/native-chat/native-chat-file-provenance.test.ts b/src/main/native-chat/native-chat-file-provenance.test.ts
new file mode 100644
index 00000000000..2592a257a8e
--- /dev/null
+++ b/src/main/native-chat/native-chat-file-provenance.test.ts
@@ -0,0 +1,97 @@
+import { describe, expect, it, vi } from 'vitest'
+import type { NativeChatMessage } from '../../shared/native-chat-types'
+import type { RuntimeMobileSessionClientTab } from '../../shared/runtime-types'
+import { nativeChatTranscriptIncludesPath } from './native-chat-file-provenance'
+
+function terminalTab(): RuntimeMobileSessionClientTab {
+  return {
+    type: 'terminal',
+    id: 'tab-1',
+    title: 'Codex',
+    parentTabId: 'parent-1',
+    leafId: 'leaf-1',
+    launchAgent: 'codex',
+    agentStatus: {
+      state: 'done',
+      prompt: '',
+      updatedAt: 1,
+      stateStartedAt: 1,
+      paneKey: 'parent-1:leaf-1',
+      stateHistory: [],
+      agentType: 'codex',
+      providerSession: {
+        key: 'session_id',
+        id: 'session-1',
+        transcriptPath: '/host/transcripts/session-1.jsonl'
+      }
+    },
+    isActive: true,
+    status: 'ready',
+    terminal: 'term-1'
+  }
+}
+
+function message(role: NativeChatMessage['role'], text: string): NativeChatMessage {
+  return {
+    id: `${role}-1`,
+    role,
+    blocks: [{ type: 'text', text }],
+    timestamp: 1,
+    source: 'transcript'
+  }
+}
+
+describe('nativeChatTranscriptIncludesPath', () => {
+  it('accepts a path in recent assistant output from the host-bound session', async () => {
+    const readTranscript = vi.fn(async () => ({
+      messages: [message('assistant', 'Open ~/orca-plans/result.html to review it.')]
+    }))
+
+    await expect(
+      nativeChatTranscriptIncludesPath({
+        tabs: [terminalTab()],
+        context: { tabId: 'tab-1', sessionId: 'session-1' },
+        pathText: '~/orca-plans/result.html',
+        absolutePath: '/Users/ada/orca-plans/result.html',
+        readTranscript
+      })
+    ).resolves.toBe(true)
+    expect(readTranscript).toHaveBeenCalledWith({
+      agent: 'codex',
+      sessionId: 'session-1',
+      transcriptPath: '/host/transcripts/session-1.jsonl',
+      limit: 2000
+    })
+  })
+
+  it('rejects a client session identity that does not match the host tab', async () => {
+    const readTranscript = vi.fn()
+
+    await expect(
+      nativeChatTranscriptIncludesPath({
+        tabs: [terminalTab()],
+        context: { tabId: 'tab-1', sessionId: 'forged-session' },
+        pathText: '/etc/passwd',
+        absolutePath: '/etc/passwd',
+        readTranscript
+      })
+    ).resolves.toBe(false)
+    expect(readTranscript).not.toHaveBeenCalled()
+  })
+
+  it('does not treat user-authored transcript text as agent provenance', async () => {
+    const readTranscript = vi.fn(async () => ({
+      messages: [message('user', 'Please open /etc/passwd')]
+    }))
+
+    await expect(
+      nativeChatTranscriptIncludesPath({
+        tabs: [terminalTab()],
+        context: { tabId: 'tab-1', sessionId: 'session-1' },
+        pathText: '/etc/passwd',
+        absolutePath: '/etc/passwd',
+        readTranscript
+      })
+    ).resolves.toBe(false)
+  })
+})
diff --git a/src/main/native-chat/native-chat-file-provenance.ts b/src/main/native-chat/native-chat-file-provenance.ts
new file mode 100644
index 00000000000..746e7735078
--- /dev/null
+++ b/src/main/native-chat/native-chat-file-provenance.ts
@@ -0,0 +1,66 @@
+import type { AgentType, NativeChatMessage } from '../../shared/native-chat-types'
+import { resolveNativeChatTranscriptAgent } from '../../shared/native-chat-agent-support'
+import type {
+  RuntimeMobileSessionClientTab,
+  RuntimeMobileSessionTerminalClientTab,
+  RuntimeNativeChatFileContext
+} from '../../shared/runtime-types'
+import { recentTerminalOutputIncludesPath } from '../runtime/terminal-output-path-candidates'
+import { readNativeChatTranscriptTail } from './transcript-tail-reader'
+
+// Match the largest transcript window mobile can render so any visible citation remains provable.
+const NATIVE_CHAT_FILE_PROVENANCE_WINDOW = 2000
+
+type TranscriptRead = (args: {
+  agent: AgentType
+  sessionId: string
+  transcriptPath?: string
+  limit: number
+}) => Promise<{ messages: NativeChatMessage[] } | { error: string }>
+
+export async function nativeChatTranscriptIncludesPath(args: {
+  tabs: readonly RuntimeMobileSessionClientTab[]
+  context: RuntimeNativeChatFileContext
+  pathText: string
+  absolutePath: string
+  readTranscript?: TranscriptRead
+}): Promise<boolean> {
+  const tab = args.tabs.find(
+    (candidate): candidate is RuntimeMobileSessionTerminalClientTab =>
+      candidate.type === 'terminal' && candidate.id === args.context.tabId
+  )
+  const providerSession = tab?.agentStatus?.providerSession
+  const agent = tab?.agentStatus?.agentType ?? tab?.launchAgent
+  if (
+    !tab ||
+    !providerSession ||
+    providerSession.id !== args.context.sessionId ||
+    !agent ||
+    !resolveNativeChatTranscriptAgent(agent)
+  ) {
+    return false
+  }
+
+  try {
+    const result = await (args.readTranscript ?? readNativeChatTranscriptTail)({
+      agent,
+      sessionId: providerSession.id,
+      ...(providerSession.transcriptPath ? { transcriptPath: providerSession.transcriptPath } : {}),
+      limit: NATIVE_CHAT_FILE_PROVENANCE_WINDOW
+    })
+    if (!('messages' in result)) {
+      return false
+    }
+    return result.messages.some(
+      (message) =>
+        message.role === 'assistant' &&
+        message.blocks.some(
+          (block) =>
+            block.type === 'text' &&
+            recentTerminalOutputIncludesPath(block.text, args.pathText, args.absolutePath)
+        )
+    )
+  } catch {
+    return false
+  }
+}
diff --git a/src/main/runtime/orca-runtime-files.test.ts b/src/main/runtime/orca-runtime-files.test.ts
index ce96eddb5e0..e57ab8c1f67 100644
--- a/src/main/runtime/orca-runtime-files.test.ts
+++ b/src/main/runtime/orca-runtime-files.test.ts
@@ -157,6 +157,7 @@ function createRuntimeFileCommands(options?: {
   resolveTerminalContext?: ReturnType<typeof vi.fn>
   resolveTerminalFileUriHostname?: ReturnType<typeof vi.fn>
   hasRecentTerminalOutputPath?: ReturnType<typeof vi.fn>
+  hasRecentNativeChatOutputPath?: ReturnType<typeof vi.fn>
 }) {
   const store = {
     getRepo: vi.fn((_repoId?: string) => undefined as { connectionId?: string } | undefined)
@@ -192,6 +193,9 @@ function createRuntimeFileCommands(options?: {
       ? { resolveTerminalFileUriHostname: options.resolveTerminalFileUriHostname }
       : {}),
     hasRecentTerminalOutputPath: options?.hasRecentTerminalOutputPath ?? vi.fn(() => true),
+    ...(options?.hasRecentNativeChatOutputPath
+      ? { hasRecentNativeChatOutputPath: options.hasRecentNativeChatOutputPath }
+      : {}),
     resolveRuntimeGitTarget: options?.resolveRuntimeGitTarget ?? vi.fn(),
     openFile: options?.openFile ?? vi.fn(),
     ...(options?.openDiff ? { openDiff: options.openDiff } : {})
@@ -992,6 +996,28 @@ describe('RuntimeFileCommands', () => {
       })
     })
 
+    it('keeps in-worktree resolution unchanged when chat provenance is present', async () => {
+      const hasRecentNativeChatOutputPath = vi.fn(() => true)
+      const { commands } = createRuntimeFileCommands({
+        path: '/repo',
+        hasRecentNativeChatOutputPath
+      })
+      statAsFile()
+
+      const result = await commands.resolveTerminalPath(
+        'id:wt-1',
+        '/repo/src/index.ts',
+        null,
+        'client-a',
+        null,
+        true,
+        { tabId: 'tab-1', sessionId: 'session-1' }
+      )
+
+      expect(result).toMatchObject({ relativePath: 'src/index.ts', exists: true })
+      expect(hasRecentNativeChatOutputPath).not.toHaveBeenCalled()
+    })
+
     it('resolves an absolute path through a known sibling workspace', async () => {
       const sibling = {
         id: 'wt-2',
@@ -1367,9 +1393,13 @@ describe('RuntimeFileCommands', () => {
       expect(statMock).not.toHaveBeenCalled()
     })
 
-    it('does not mint an absolute terminal artifact grant without a source terminal', async () => {
+    it('keeps old-client behavior without native-chat provenance', async () => {
       const artifactPath = await tempFile('result.json', '{}')
-      const { commands } = createRuntimeFileCommands({ path: '/repo' })
+      const hasRecentNativeChatOutputPath = vi.fn(() => true)
+      const { commands } = createRuntimeFileCommands({
+        path: '/repo',
+        hasRecentNativeChatOutputPath
+      })
 
       const result = await commands.resolveTerminalPath('id:wt-1', artifactPath, null, 'client-a')
 
@@ -1380,6 +1410,68 @@ describe('RuntimeFileCommands', () => {
         isDirectory: false
       })
       expect(result.openTarget).toBeUndefined()
+      expect(hasRecentNativeChatOutputPath).not.toHaveBeenCalled()
+    })
+
+    it('mints an exact-path grant for an out-of-worktree path cited by native chat', async () => {
+      const artifactPath = await tempFile('chat-result.html', '<h1>Result</h1>')
+      const hasRecentNativeChatOutputPath = vi.fn(() => true)
+      const { commands } = createRuntimeFileCommands({
+        path: '/repo',
+        hasRecentNativeChatOutputPath
+      })
+
+      const result = await commands.resolveTerminalPath(
+        'id:wt-1',
+        artifactPath,
+        null,
+        'client-a',
+        null,
+        true,
+        { tabId: 'tab-1', sessionId: 'session-1' }
+      )
+
+      expect(hasRecentNativeChatOutputPath).toHaveBeenCalledWith(
+        'wt-1',
+        { tabId: 'tab-1', sessionId: 'session-1' },
+        artifactPath,
+        artifactPath
+      )
+      expect(result).toMatchObject({
+        worktree: 'wt-1',
+        relativePath: null,
+        absolutePath: await realpath(artifactPath),
+        exists: true,
+        isDirectory: false,
+        openTarget: {
+          kind: 'absolute-file',
+          provider: 'local',
+          absolutePath: await realpath(artifactPath)
+        }
+      })
+    })
+
+    it('refuses an out-of-worktree chat path without transcript provenance', async () => {
+      const artifactPath = await tempFile('uncited-result.html', '<h1>Secret</h1>')
+      const hasRecentNativeChatOutputPath = vi.fn(() => false)
+      const { commands } = createRuntimeFileCommands({
+        path: '/repo',
+        hasRecentNativeChatOutputPath
+      })
+
+      const result = await commands.resolveTerminalPath(
+        'id:wt-1',
+        artifactPath,
+        null,
+        'client-a',
+        null,
+        true,
+        { tabId: 'tab-1', sessionId: 'session-1' }
+      )
+
+      expect(result).toMatchObject({ relativePath: null, exists: false })
+      expect(result.openTarget).toBeUndefined()
+      expect(hasRecentNativeChatOutputPath).toHaveBeenCalledTimes(1)
     })
 
     it('does not mint an absolute terminal artifact grant for an unobserved path', async () => {
@@ -2294,6 +2386,28 @@ describe('RuntimeFileCommands', () => {
       expect(stat).not.toHaveBeenCalled()
     })
 
+    it('still refuses a native-chat ~/ path on a remote worktree', async () => {
+      const hasRecentNativeChatOutputPath = vi.fn(() => true)
+      const { commands, store } = createRuntimeFileCommands({
+        path: '/repo',
+        hasRecentNativeChatOutputPath
+      })
+      store.getRepo.mockReturnValue({ connectionId: 'ssh-1' })
+
+      const result = await commands.resolveTerminalPath(
+        'id:wt-1',
+        '~/notes.md',
+        null,
+        'client-a',
+        null,
+        true,
+        { tabId: 'tab-1', sessionId: 'session-1' }
+      )
+
+      expect(result).toMatchObject({ relativePath: null, exists: false })
+      expect(hasRecentNativeChatOutputPath).not.toHaveBeenCalled()
+    })
+
     it('reports a missing remote file as not existing', async () => {
       const { commands, store } = createRuntimeFileCommands({ path: '/repo' })
       store.getRepo.mockReturnValue({ connectionId: 'ssh-1' })
diff --git a/src/main/runtime/orca-runtime-files.ts b/src/main/runtime/orca-runtime-files.ts
index f85bff8abde..aaebfb24713 100644
--- a/src/main/runtime/orca-runtime-files.ts
+++ b/src/main/runtime/orca-runtime-files.ts
@@ -45,6 +45,7 @@ import type {
   RuntimeFileReadChunkResult,
   RuntimeFilePreviewResult,
   RuntimeFileReadResult,
+  RuntimeNativeChatFileContext,
   RuntimeTerminalPathResolution
 } from '../../shared/runtime-types'
 import {
@@ -524,6 +525,12 @@ export type RuntimeFileCommandHost = {
     pathText: string,
     absolutePath: string
   ): boolean | Promise<boolean>
+  hasRecentNativeChatOutputPath?(
+    worktreeId: string,
+    context: RuntimeNativeChatFileContext,
+    pathText: string,
+    absolutePath: string
+  ): boolean | Promise<boolean>
   resolveRuntimeGitTarget(
     selector: string
   ): Promise<{ worktree: ResolvedRuntimeFileWorktree; connectionId?: string }>
@@ -726,7 +733,8 @@ export class RuntimeFileCommands {
     cwd?: string | null,
     clientId?: string,
     terminalHandle?: string | null,
-    crossWorkspace?: boolean
+    crossWorkspace?: boolean,
+    nativeChatContext?: RuntimeNativeChatFileContext | null
   ): Promise<RuntimeTerminalPathResolution> {
     const store = this.host.requireStore()
     const target = await this.host.resolveRuntimeFileTarget(worktreeSelector)
@@ -802,6 +810,24 @@ export class RuntimeFileCommands {
         }
       }
 
+      if (
+        nativeChatContext &&
+        (await this.host.hasRecentNativeChatOutputPath?.(
+          worktree.id,
+          nativeChatContext,
+          pathText,
+          absolutePath
+        ))
+      ) {
+        const artifactPath = await this.resolveNativeChatArtifactPath(absolutePath, connectionId)
+        return await this.resolveAbsoluteFileGrant({
+          worktreeId: worktree.id,
+          artifactPath,
+          connectionId,
+          clientId
+        })
+      }
+
       // Why: mobile taps may hit agent artifacts outside the worktree; grant the exact path, not arbitrary absolute paths.
       if (!normalizedTerminalHandle || !terminalCwd) {
         return { ...empty, relativePath, absolutePath }
@@ -831,38 +857,13 @@ export class RuntimeFileCommands {
       ) {
         return { ...empty, relativePath, absolutePath }
       }
-      const stats = connectionId
-        ? await this.statRemoteTerminalPath(artifactPath, connectionId)
-        : await this.statLocalTerminalPath(artifactPath)
-      const isDirectory = stats.isDirectory()
-      if (!isDirectory && isTerminalArtifactHardLinked(stats)) {
-        return { ...empty, relativePath, absolutePath }
-      }
-      const grant = isDirectory
-        ? null
-        : this.createTerminalFileGrant({
-            worktreeId: worktree.id,
-            absolutePath: artifactPath,
-            provider: connectionId ? 'ssh' : 'local',
-            connectionId,
-            clientId,
-            stats
-          })
-      return {
-        worktree: worktree.id,
-        relativePath: null,
-        absolutePath: artifactPath,
-        exists: true,
-        isDirectory,
-        openTarget: grant
-          ? {
-              kind: 'absolute-file',
-              provider: grant.provider,
-              absolutePath: artifactPath,
-              grantId: grant.id
-            }
-          : undefined
-      }
+      return await this.resolveAbsoluteFileGrant({
+        worktreeId: worktree.id,
+        artifactPath,
+        rejectedAbsolutePath: absolutePath,
+        connectionId,
+        clientId
+      })
     } catch (error) {
       // Report genuine not-found as missing; let transport/permission errors surface so remote taps aren't all reported missing.
       if (
@@ -909,6 +910,67 @@ export class RuntimeFileCommands {
     return resolveAllowedLocalTerminalArtifactPath(args.absolutePath, args.worktreePath)
   }
 
+  private async resolveNativeChatArtifactPath(
+    absolutePath: string,
+    connectionId?: string
+  ): Promise<string> {
+    if (!connectionId) {
+      return canonicalPathForArtifactComparison(absolutePath)
+    }
+    const provider = getSshFilesystemProvider(connectionId)
+    if (!provider) {
+      throw new Error(SSH_FILESYSTEM_PROVIDER_UNAVAILABLE_MESSAGE)
+    }
+    return provider.realpath(absolutePath)
+  }
+
+  private async resolveAbsoluteFileGrant(args: {
+    worktreeId: string
+    artifactPath: string
+    rejectedAbsolutePath?: string
+    connectionId?: string
+    clientId?: string
+  }): Promise<RuntimeTerminalPathResolution> {
+    const stats = args.connectionId
+      ? await this.statRemoteTerminalPath(args.artifactPath, args.connectionId)
+      : await this.statLocalTerminalPath(args.artifactPath)
+    const isDirectory = stats.isDirectory()
+    if (!isDirectory && isTerminalArtifactHardLinked(stats)) {
+      return {
+        worktree: args.worktreeId,
+        relativePath: null,
+        absolutePath: args.rejectedAbsolutePath ?? args.artifactPath,
+        exists: false,
+        isDirectory: false
+      }
+    }
+    const grant = isDirectory
+      ? null
+      : this.createTerminalFileGrant({
+          worktreeId: args.worktreeId,
+          absolutePath: args.artifactPath,
+          provider: args.connectionId ? 'ssh' : 'local',
+          connectionId: args.connectionId,
+          clientId: args.clientId,
+          stats
+        })
+    return {
+      worktree: args.worktreeId,
+      relativePath: null,
+      absolutePath: args.artifactPath,
+      exists: true,
+      isDirectory,
+      openTarget: grant
+        ? {
+            kind: 'absolute-file',
+            provider: grant.provider,
+            absolutePath: args.artifactPath,
+            grantId: grant.id
+          }
+        : undefined
+    }
+  }
+
   private async resolveAllowedRemoteTerminalArtifactPath(
     absolutePath: string,
     connectionId: string
diff --git a/src/main/runtime/orca-runtime.ts b/src/main/runtime/orca-runtime.ts
index 7cad4ad94bc..e54134eeade 100644
--- a/src/main/runtime/orca-runtime.ts
+++ b/src/main/runtime/orca-runtime.ts
@@ -1012,6 +1012,7 @@ import {
   recentTerminalOutputIncludesPath,
   recentTerminalPathCandidatesIncludePath
 } from './terminal-output-path-candidates'
+import { nativeChatTranscriptIncludesPath } from '../native-chat/native-chat-file-provenance'
 import {
   getSelectedReviewBranch,
   getSelectedReviewLookupHints,
@@ -8764,6 +8765,13 @@ export class OrcaRuntimeService {
       this.resolveTerminalFileUriHostname(terminalHandle),
     hasRecentTerminalOutputPath: (terminalHandle, pathText, absolutePath) =>
       this.hasRecentTerminalOutputPath(terminalHandle, pathText, absolutePath),
+    hasRecentNativeChatOutputPath: (worktreeId, context, pathText, absolutePath) =>
+      nativeChatTranscriptIncludesPath({
+        tabs: this.getMobileSessionTabsForWorktree(worktreeId).tabs,
+        context,
+        pathText,
+        absolutePath
+      }),
     resolveRuntimeGitTarget: (selector) => this.resolveRuntimeGitTarget(selector),
     openFile: (worktreeId, filePath, relativePath, runtimeEnvironmentId) => {
       if (!this.notifier?.openFile) {
diff --git a/src/main/runtime/rpc/methods/files-terminal-path-resolution.test.ts b/src/main/runtime/rpc/methods/files-terminal-path-resolution.test.ts
index 2055222ff7f..d589b74116c 100644
--- a/src/main/runtime/rpc/methods/files-terminal-path-resolution.test.ts
+++ b/src/main/runtime/rpc/methods/files-terminal-path-resolution.test.ts
@@ -40,7 +40,8 @@ describe('files.resolveTerminalPath RPC', () => {
       '/repo',
       undefined,
       'term-1',
-      false
+      false,
+      null
     )
     expect(response).toMatchObject({
       ok: true,
@@ -67,7 +68,30 @@ describe('files.resolveTerminalPath RPC', () => {
       null,
       undefined,
       null,
-      true
+      true,
+      null
+    )
+  })
+
+  it('forwards optional native-chat provenance', async () => {
+    const { runtime, dispatcher } = createDispatcher()
+
+    await dispatcher.dispatch(
+      makeRequest('files.resolveTerminalPath', {
+        worktree: 'id:wt-1',
+        pathText: '/outside/result.html',
+        nativeChatContext: { tabId: 'tab-1', sessionId: 'session-1' }
+      })
+    )
+
+    expect(runtime.resolveTerminalPath).toHaveBeenLastCalledWith(
+      'id:wt-1',
+      '/outside/result.html',
+      null,
+      undefined,
+      null,
+      false,
+      { tabId: 'tab-1', sessionId: 'session-1' }
     )
   })
 })
diff --git a/src/main/runtime/rpc/methods/files.ts b/src/main/runtime/rpc/methods/files.ts
index ffaa48b510e..741fc65635f 100644
--- a/src/main/runtime/rpc/methods/files.ts
+++ b/src/main/runtime/rpc/methods/files.ts
@@ -78,6 +78,12 @@ const ResolveTerminalPath = WorktreeSelector.extend({
   crossWorkspace: z
     .unknown()
     .transform((v) => v === true)
+    .optional(),
+  nativeChatContext: z
+    .object({
+      tabId: z.string().min(1),
+      sessionId: z.string().min(1)
+    })
     .optional()
 })
 
@@ -257,7 +263,8 @@ export const FILE_METHODS: RpcAnyMethod[] = [
         params.cwd ?? null,
         clientId,
         params.terminal ?? null,
-        params.crossWorkspace === true
+        params.crossWorkspace === true,
+        params.nativeChatContext ?? null
       )
   }),
   defineMethod({
diff --git a/src/shared/runtime-types.ts b/src/shared/runtime-types.ts
index af02b02e484..901af13fdcc 100644
--- a/src/shared/runtime-types.ts
+++ b/src/shared/runtime-types.ts
@@ -410,6 +410,11 @@ export type RuntimeTerminalPathOpenTarget =
       reason: string
     }
 
+export type RuntimeNativeChatFileContext = {
+  tabId: string
+  sessionId: string
+}
+
 /** Result of resolving a file path tapped in the mobile terminal against the
  *  selected or sibling workspace root (+ optional cwd). relativePath is null
  *  when no workspace on the same execution host owns the path. */