diff --git a/CHANGELOG.md b/CHANGELOG.md
index dc4c42437d5..00d9d85dab8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -26,6 +26,7 @@ Docs: https://docs.openclaw.ai
 - Plugins: discover provider plugins from `setup.providers[].envVars` credentials during provider discovery while keeping the deprecated `providerAuthEnvVars` fallback. (#81542) Thanks @JARVIS-Glasses.
 - Docs/Codex harness: clarify that per-agent `CODEX_HOME` isolates `~/.codex` while inherited `HOME` intentionally keeps `.agents` discovery and subprocess user-home state available.
 - CLI/plugins: keep bare plugin and parent-command help on the lightweight path, avoiding plugin registry discovery before rendering help.
+- Auth: reclaim dead-owner stale file locks before retrying locked writes, so crashed OAuth refreshes no longer wedge `auth-profiles.json` until manual cleanup.
 - CLI tables: preserve muted/color styling on wrapped continuation lines after multiline cells, keeping `openclaw plugins list` descriptions readable.
 - Process execution: collapse case-insensitive duplicate child environment keys on Windows so caller-provided overrides such as `PATH` cannot be shadowed by host `Path`.
 - Browser CLI: request the existing `operator.admin` gateway scope explicitly for browser control commands, avoiding unnecessary scope-upgrade approval loops. Fixes #81555. (#81716) Thanks @joshavant.
diff --git a/src/plugin-sdk/file-lock.test.ts b/src/plugin-sdk/file-lock.test.ts
index 60494e4dd80..1c31d6e0832 100644
--- a/src/plugin-sdk/file-lock.test.ts
+++ b/src/plugin-sdk/file-lock.test.ts
@@ -5,6 +5,7 @@ import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
 import {
   acquireFileLock,
   drainFileLockStateForTest,
+  FILE_LOCK_STALE_ERROR_CODE,
   FILE_LOCK_TIMEOUT_ERROR_CODE,
   resetFileLockStateForTest,
 } from "./file-lock.js";
@@ -55,6 +56,70 @@ describe("acquireFileLock", () => {
     );
   }, 5_000);
 
+  it("removes a reported stale lock when its owner pid is dead", async () => {
+    const filePath = path.join(tempDir, "auth-profiles.json");
+    const lockPath = `${filePath}.lock`;
+    const options = {
+      retries: {
+        retries: 0,
+        factor: 1,
+        minTimeout: 1,
+        maxTimeout: 1,
+      },
+      stale: 10,
+    } as const;
+
+    await fs.writeFile(
+      lockPath,
+      JSON.stringify({ pid: 999_999, createdAt: new Date(Date.now() - 60_000).toISOString() }),
+      "utf8",
+    );
+
+    const lock = await acquireFileLock(filePath, options);
+    try {
+      await expect(fs.realpath(lock.lockPath)).resolves.toBe(await fs.realpath(lockPath));
+      await expect(fs.readFile(lockPath, "utf8")).resolves.toContain(`"pid"`);
+    } finally {
+      await lock.release();
+    }
+  });
+
+  it("keeps a reported stale lock when its owner pid is alive", async () => {
+    const filePath = path.join(tempDir, "live-owner");
+    const lockPath = `${filePath}.lock`;
+    const options = {
+      retries: {
+        retries: 0,
+        factor: 1,
+        minTimeout: 1,
+        maxTimeout: 1,
+      },
+      stale: 10,
+    } as const;
+
+    await fs.writeFile(
+      lockPath,
+      JSON.stringify({ pid: process.pid, createdAt: new Date(Date.now() - 60_000).toISOString() }),
+      "utf8",
+    );
+
+    let caught: { lockPath?: string } | undefined;
+    await expect(
+      (async () => {
+        try {
+          await acquireFileLock(filePath, options);
+        } catch (err) {
+          caught = err as { lockPath?: string };
+          throw err;
+        }
+      })(),
+    ).rejects.toMatchObject({
+      code: FILE_LOCK_STALE_ERROR_CODE,
+    });
+    await expect(fs.realpath(caught?.lockPath ?? "")).resolves.toBe(await fs.realpath(lockPath));
+    await expect(fs.readFile(lockPath, "utf8")).resolves.toContain(`"pid":${process.pid}`);
+  });
+
   it("closes an opened lock handle when writing the owner payload fails", async () => {
     const filePath = path.join(tempDir, "write-fails");
     const writeError = new Error("owner write failed");
diff --git a/src/plugin-sdk/file-lock.ts b/src/plugin-sdk/file-lock.ts
index 11130538957..a33780a7da5 100644
--- a/src/plugin-sdk/file-lock.ts
+++ b/src/plugin-sdk/file-lock.ts
@@ -1,4 +1,5 @@
 import "../infra/fs-safe-defaults.js";
+import fs from "node:fs/promises";
 import {
   acquireFileLock as acquireFsSafeFileLock,
   drainFileLockManagerForTest,
@@ -28,14 +29,25 @@ export type FileLockHandle = {
 };
 
 export const FILE_LOCK_TIMEOUT_ERROR_CODE = "file_lock_timeout";
+export const FILE_LOCK_STALE_ERROR_CODE = "file_lock_stale";
 
 export type FileLockTimeoutError = Error & {
   code: typeof FILE_LOCK_TIMEOUT_ERROR_CODE;
   lockPath: string;
 };
 
+export type FileLockStaleError = Error & {
+  code: typeof FILE_LOCK_STALE_ERROR_CODE;
+  lockPath: string;
+};
+
 const FILE_LOCK_MANAGER_KEY = "openclaw.plugin-sdk.file-lock";
 
+type LockFileSnapshot = {
+  raw: string;
+  payload: Record<string, unknown> | null;
+};
+
 function readLockPayload(value: Record<string, unknown> | null): LockFilePayload | null {
   if (!value) {
     return null;
@@ -63,13 +75,98 @@ async function shouldReclaimPluginLock(params: {
   return true;
 }
 
-function normalizeTimeoutError(err: unknown): never {
+function isFileLockError(error: unknown, code: string): boolean {
+  return (error as { code?: unknown } | null)?.code === code;
+}
+
+async function readLockFileSnapshot(lockPath: string): Promise<LockFileSnapshot | null> {
+  let raw: string;
+  try {
+    raw = await fs.readFile(lockPath, "utf8");
+  } catch (err) {
+    if ((err as NodeJS.ErrnoException).code === "ENOENT") {
+      return null;
+    }
+    throw err;
+  }
+
+  try {
+    const parsed = JSON.parse(raw) as unknown;
+    return {
+      raw,
+      payload:
+        parsed && typeof parsed === "object" && !Array.isArray(parsed)
+          ? (parsed as Record<string, unknown>)
+          : null,
+    };
+  } catch {
+    return { raw, payload: null };
+  }
+}
+
+function shouldRemoveReportedStalePluginLock(params: {
+  payload: Record<string, unknown> | null;
+  staleMs: number;
+  nowMs: number;
+}): boolean {
+  const payload = readLockPayload(params.payload);
+  if (payload?.pid) {
+    return !isPidAlive(payload.pid);
+  }
+  if (payload?.createdAt) {
+    const createdAt = Date.parse(payload.createdAt);
+    return !Number.isFinite(createdAt) || params.nowMs - createdAt > params.staleMs;
+  }
+  return true;
+}
+
+async function removeReportedStaleLockIfStillStale(params: {
+  lockPath: string;
+  staleMs: number;
+}): Promise<boolean> {
+  const snapshot = await readLockFileSnapshot(params.lockPath);
+  if (!snapshot) {
+    return true;
+  }
+  if (
+    !shouldRemoveReportedStalePluginLock({
+      payload: snapshot.payload,
+      staleMs: params.staleMs,
+      nowMs: Date.now(),
+    })
+  ) {
+    return false;
+  }
+
+  const current = await readLockFileSnapshot(params.lockPath);
+  if (!current) {
+    return true;
+  }
+  if (current.raw !== snapshot.raw) {
+    return false;
+  }
+
+  try {
+    await fs.unlink(params.lockPath);
+    return true;
+  } catch (err) {
+    return (err as NodeJS.ErrnoException).code === "ENOENT";
+  }
+}
+
+function normalizeLockError(err: unknown): never {
   if ((err as { code?: unknown }).code === FILE_LOCK_TIMEOUT_ERROR_CODE) {
     throw Object.assign(new Error((err as Error).message), {
       code: FILE_LOCK_TIMEOUT_ERROR_CODE,
       lockPath: (err as { lockPath?: string }).lockPath ?? "",
     }) as FileLockTimeoutError;
   }
+  if ((err as { code?: unknown }).code === FILE_LOCK_STALE_ERROR_CODE) {
+    throw Object.assign(new Error((err as Error).message), {
+      code: FILE_LOCK_STALE_ERROR_CODE,
+      lockPath: (err as { lockPath?: string }).lockPath ?? "",
+    }) as FileLockStaleError;
+  }
   throw err;
 }
 
@@ -86,18 +183,32 @@ export async function acquireFileLock(
   filePath: string,
   options: FileLockOptions,
 ): Promise<FileLockHandle> {
-  try {
-    const lock = await acquireFsSafeFileLock(filePath, {
-      managerKey: FILE_LOCK_MANAGER_KEY,
-      staleMs: options.stale,
-      retry: options.retries,
-      allowReentrant: true,
-      payload: () => ({ pid: process.pid, createdAt: new Date().toISOString() }),
-      shouldReclaim: shouldReclaimPluginLock,
-    });
-    return { lockPath: lock.lockPath, release: lock.release };
-  } catch (err) {
-    return normalizeTimeoutError(err);
+  while (true) {
+    try {
+      const lock = await acquireFsSafeFileLock(filePath, {
+        managerKey: FILE_LOCK_MANAGER_KEY,
+        staleMs: options.stale,
+        retry: options.retries,
+        allowReentrant: true,
+        payload: () => ({ pid: process.pid, createdAt: new Date().toISOString() }),
+        shouldReclaim: shouldReclaimPluginLock,
+      });
+      return { lockPath: lock.lockPath, release: lock.release };
+    } catch (err) {
+      if (isFileLockError(err, FILE_LOCK_STALE_ERROR_CODE)) {
+        const lockPath = (err as { lockPath?: string }).lockPath;
+        if (
+          lockPath &&
+          (await removeReportedStaleLockIfStillStale({
+            lockPath,
+            staleMs: options.stale,
+          }))
+        ) {
+          continue;
+        }
+      }
+      return normalizeLockError(err);
+    }
   }
 }