diff --git a/src/main/providers/ssh-git-provider.test.ts b/src/main/providers/ssh-git-provider.test.ts
index 0d0c33434..9de75d670 100644
--- a/src/main/providers/ssh-git-provider.test.ts
+++ b/src/main/providers/ssh-git-provider.test.ts
@@ -709,6 +709,43 @@ describe('SshGitProvider', () => {
     })
   })
 
+  it('worktreeIsClean sends git.worktreeIsClean request', async () => {
+    const cleanResult = { clean: false, stdout: '?? scratch.txt\n' }
+    mux.request.mockResolvedValue(cleanResult)
+
+    const result = await provider.worktreeIsClean('/home/user/feat')
+
+    expect(mux.request).toHaveBeenCalledWith('git.worktreeIsClean', {
+      worktreePath: '/home/user/feat'
+    })
+    expect(result).toEqual(cleanResult)
+  })
+
+  it('worktreeIsClean falls back to git.status for old relays', async () => {
+    const methodNotFound = Object.assign(new Error('Method not found: git.worktreeIsClean'), {
+      code: -32601
+    })
+    mux.request.mockRejectedValueOnce(methodNotFound).mockResolvedValueOnce({
+      entries: [{ path: 'scratch.txt', status: 'untracked', area: 'untracked' }],
+      conflictOperation: 'unknown'
+    })
+    const warnSpy = vi.spyOn(console, 'warn').mockImplementation(() => {})
+
+    try {
+      const result = await provider.worktreeIsClean('/home/user/feat')
+
+      expect(mux.request).toHaveBeenNthCalledWith(1, 'git.worktreeIsClean', {
+        worktreePath: '/home/user/feat'
+      })
+      expect(mux.request).toHaveBeenNthCalledWith(2, 'git.status', {
+        worktreePath: '/home/user/feat'
+      })
+      expect(result).toEqual({ clean: false, stdout: 'untracked untracked: scratch.txt' })
+    } finally {
+      warnSpy.mockRestore()
+    }
+  })
+
   it('renameCurrentBranch sends the narrow branch-rename request', async () => {
     await provider.renameCurrentBranch('/home/user/feat', 'you/fix-auth')
     expect(mux.request).toHaveBeenCalledWith('git.renameCurrentBranch', {
diff --git a/src/main/providers/ssh-git-provider.ts b/src/main/providers/ssh-git-provider.ts
index e94a5afc1..effc3aa91 100644
--- a/src/main/providers/ssh-git-provider.ts
+++ b/src/main/providers/ssh-git-provider.ts
@@ -17,6 +17,7 @@ import type {
 } from '../../shared/types'
 import type { GitHistoryOptions, GitHistoryResult } from '../../shared/git-history'
 import { buildHostedRemoteFileUrl } from '../git/hosted-remote-url'
+import { JsonRpcErrorCode } from '../ssh/relay-protocol'
 import type { CommitMessageDraftContext } from '../../shared/commit-message-generation'
 import type { CommitMessagePlan } from '../../shared/commit-message-plan'
 import type { RemoteCommitMessageExecResult } from '../text-generation/commit-message-text-generation'
@@ -28,10 +29,25 @@ type NonInteractiveExecQueueEntry = {
   release: () => void
 }
 
+function isJsonRpcMethodNotFoundError(error: unknown): boolean {
+  if (!error || typeof error !== 'object') {
+    return false
+  }
+  return (error as { code?: unknown }).code === JsonRpcErrorCode.MethodNotFound
+}
+
+function formatStatusEntriesForCleanCheck(entries: GitStatusResult['entries']): string | undefined {
+  if (entries.length === 0) {
+    return undefined
+  }
+  return entries.map((entry) => `${entry.area} ${entry.status}: ${entry.path}`).join('\n')
+}
+
 export class SshGitProvider implements IGitProvider {
   private connectionId: string
   private mux: SshChannelMultiplexer
   private nonInteractiveExecQueues = new Map<string, NonInteractiveExecQueueEntry[]>()
+  private loggedWorktreeIsCleanFallback = false
 
   constructor(connectionId: string, mux: SshChannelMultiplexer) {
     this.connectionId = connectionId
@@ -443,9 +459,26 @@ export class SshGitProvider implements IGitProvider {
   }
 
   async worktreeIsClean(worktreePath: string): Promise<{ clean: boolean; stdout?: string }> {
-    return (await this.mux.request('git.worktreeIsClean', { worktreePath })) as {
-      clean: boolean
-      stdout?: string
+    try {
+      return (await this.mux.request('git.worktreeIsClean', { worktreePath })) as {
+        clean: boolean
+        stdout?: string
+      }
+    } catch (error) {
+      if (!isJsonRpcMethodNotFoundError(error)) {
+        throw error
+      }
+      if (!this.loggedWorktreeIsCleanFallback) {
+        this.loggedWorktreeIsCleanFallback = true
+        console.warn(
+          '[ssh-git] Relay does not implement git.worktreeIsClean; falling back to git.status clean check'
+        )
+      }
+      // Why: existing SSH relays may predate git.worktreeIsClean, but git.status
+      // is a narrow relay RPC and avoids the generic git.exec allowlist.
+      const status = await this.getStatus(worktreePath)
+      const clean = status.entries.length === 0
+      return { clean, stdout: formatStatusEntriesForCleanCheck(status.entries) }
     }
   }
 
diff --git a/src/relay/git-handler.test.ts b/src/relay/git-handler.test.ts
index 7d7d2fc25..69d093c03 100644
--- a/src/relay/git-handler.test.ts
+++ b/src/relay/git-handler.test.ts
@@ -62,6 +62,7 @@ describe('GitHandler', () => {
     expect(methods).toContain('git.listWorktrees')
     expect(methods).toContain('git.addWorktree')
     expect(methods).toContain('git.removeWorktree')
+    expect(methods).toContain('git.worktreeIsClean')
     expect(methods).toContain('git.renameCurrentBranch')
     expect(methods).toContain('git.exec')
     expect(methods).toContain('git.isGitRepo')