feat(rpa): add poll_until, env error codes, optional launch timeout (1.2.11)

Shared readiness wait and thin ERROR:UI_NOT_READY / BROWSER_START_TIMEOUT / ENV_DEGRADED codes so skills can separate slow machines from config failures. Optional browser launch timeout and read-only power/throttle diagnostics (non-blocking).

Co-authored-by: Cursor <cursoragent@cursor.com>

README.md

@@ -12,7 +12,7 @@ pip install jiangchang-platform-kit --index-url https://git.jc2009.com/api/packa
 
 ## 3. 包含的模块
 
-- **jiangchang_skill_core**：权益 HTTP 客户端、`enforce_entitlement`、统一文件日志、`JIANGCHANG_*` 数据根与技能根路径解析、**Skill Activity Stream / Job 运行时**（`emit` / `finish` / Run Journal）、兄弟技能 CLI 桥（`sibling_bridge`）、共享媒体资源（`media_assets`）等，供 Skill CLI / 服务进程使用。
+- **jiangchang_skill_core**：权益 HTTP 客户端、`enforce_entitlement`、统一文件日志、`JIANGCHANG_*` 数据根与技能根路径解析、**Skill Activity Stream / Job 运行时**（`emit` / `finish` / Run Journal）、兄弟技能 CLI 桥（`sibling_bridge`）、共享媒体资源（`media_assets`）、**RPA 有界就绪等待**（`rpa.poll_until`）、可选浏览器启动超时与只读机器供电/限频探测（`machine_power`，不阻断 health）等，供 Skill CLI / 服务进程使用。
 - **jiangchang_desktop_sdk**：匠厂桌面应用自动化客户端（基于 CDP + Playwright 同步 API）。**本包不声明 Playwright 依赖**；请在运行环境中自行安装 Playwright，以便 `import playwright` 可用。
 - **jiangchang_desktop_wake**：Windows 桌面 UIA 暖树。技能/拾取请用 `ensure_ui_ready("wecom")`（内部 `n2-wake`：注入 + DuiLib GetAccessible）。随包携带 x86 `native/desktop-wake.exe` 与 `wecom_wake.dll`。详见 `src/jiangchang_desktop_wake/README.md`。探测深遍历需另装 `uiautomation`。
 
@@ -278,6 +278,30 @@ print(runtime_diagnostics_dict(diag))  # 可 JSON 序列化
 
 诊断只读探测本地状态，不会触发 media-assets 下载。
 
+自 **1.2.11** 起，`runtime_diagnostics_dict` 额外包含只读字段 `machine_power`（AC 供电 / 可选 nvidia-smi 限频信息）。探不到则 `probed=false`，**不会**因此把 health 标为 fatal。
+
+### RPA 有界就绪等待与启动超时（1.2.11+）
+
+```python
+from jiangchang_skill_core.rpa import poll_until
+from jiangchang_skill_core.rpa.errors import ERR_UI_NOT_READY, ERR_BROWSER_START_TIMEOUT
+
+# 有界轮询：超时返回 timed_out，不抛异常；等待可响应宿主 pause/stop
+result = await poll_until(lambda: editor_visible, timeout_sec=30, interval_sec=0.5)
+if result.timed_out:
+    raise RuntimeError(f"{ERR_UI_NOT_READY} 页面未在时限内就绪")
+
+# 可选浏览器启动超时（默认关闭，与 1.2.10 行为一致）
+# await launch_persistent_browser(pw, profile_dir=..., timeout_ms=60_000)
+# 或环境变量 OPENCLAW_BROWSER_LAUNCH_TIMEOUT_MS=60000
+```
+
+薄错误码（技能自行决定是否 fatal / retryable）：
+
+- `ERROR:UI_NOT_READY`
+- `ERROR:BROWSER_START_TIMEOUT`
+- `ERROR:ENV_DEGRADED`
+
 ### 录屏合成（`screencast`）
 
 `run_screencast()` / `compose_video()` 通过 `jiangchang_skill_core.media_assets` 解析 ffmpeg 与背景音乐，**不使用系统 PATH 中的 `ffmpeg`**。

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "jiangchang-platform-kit"
-version = "1.2.10"
+version = "1.2.11"
 description = "匠厂平台共享组件:Skill 实体 SDK + 桌面应用自动化 SDK + 桌面 UIA 暖树"
 readme = "README.md"
 requires-python = ">=3.10"

src/jiangchang_skill_core/machine_power.py

@@ -0,0 +1,106 @@
+"""只读机器供电 / GPU 限频探测（失败静默；不作为 hard gate）。"""
+
+from __future__ import annotations
+
+import shutil
+import subprocess
+import sys
+from typing import Any
+
+
+def _probe_ac_power_windows() -> dict[str, Any] | None:
+    """GetSystemPowerStatus；非 Windows 或失败返回 None。"""
+    if sys.platform != "win32":
+        return None
+    try:
+        import ctypes
+        from ctypes import wintypes
+
+        class SYSTEM_POWER_STATUS(ctypes.Structure):
+            _fields_ = [
+                ("ACLineStatus", wintypes.BYTE),
+                ("BatteryFlag", wintypes.BYTE),
+                ("BatteryLifePercent", wintypes.BYTE),
+                ("SystemStatusFlag", wintypes.BYTE),
+                ("BatteryLifeTime", wintypes.DWORD),
+                ("BatteryFullLifeTime", wintypes.DWORD),
+            ]
+
+        status = SYSTEM_POWER_STATUS()
+        ok = ctypes.windll.kernel32.GetSystemPowerStatus(ctypes.byref(status))
+        if not ok:
+            return None
+        ac = int(status.ACLineStatus)
+        pct = int(status.BatteryLifePercent)
+        return {
+            "ac_line_status": ac,  # 0=offline, 1=online, 255=unknown
+            "on_ac_power": True if ac == 1 else (False if ac == 0 else None),
+            "battery_life_percent": None if pct > 100 else pct,
+        }
+    except Exception:
+        return None
+
+
+def _probe_nvidia_throttle() -> dict[str, Any] | None:
+    """nvidia-smi 只读查询；无驱动/失败返回 None。"""
+    smi = shutil.which("nvidia-smi")
+    if not smi:
+        return None
+    try:
+        completed = subprocess.run(
+            [
+                smi,
+                "--query-gpu=name,enforced.power.limit,power.limit,clocks_throttle_reasons.active",
+                "--format=csv,noheader,nounits",
+            ],
+            capture_output=True,
+            text=True,
+            timeout=3,
+            check=False,
+        )
+        if completed.returncode != 0:
+            return None
+        line = (completed.stdout or "").strip().splitlines()
+        if not line:
+            return None
+        # 多卡时只取第一张，足够做环境提示
+        parts = [p.strip() for p in line[0].split(",")]
+        if len(parts) < 4:
+            return None
+
+        def _float_or_none(raw: str) -> float | None:
+            try:
+                return float(raw)
+            except ValueError:
+                return None
+
+        throttle = parts[3]
+        return {
+            "gpu_name": parts[0] or None,
+            "enforced_power_limit_w": _float_or_none(parts[1]),
+            "power_limit_w": _float_or_none(parts[2]),
+            "clocks_throttle_reasons_active": throttle if throttle else None,
+        }
+    except Exception:
+        return None
+
+
+def probe_machine_power() -> dict[str, Any]:
+    """汇总只读探测结果。字段缺失表示探不到，不视为错误。"""
+    payload: dict[str, Any] = {
+        "probed": False,
+        "ac_power": None,
+        "nvidia": None,
+    }
+    ac = _probe_ac_power_windows()
+    nvidia = _probe_nvidia_throttle()
+    if ac is not None:
+        payload["ac_power"] = ac
+        payload["probed"] = True
+    if nvidia is not None:
+        payload["nvidia"] = nvidia
+        payload["probed"] = True
+    return payload
+
+
+__all__ = ["probe_machine_power"]

src/jiangchang_skill_core/rpa/__init__.py

@@ -1,8 +1,8 @@
-"""浏览器 RPA 共享库：stealth、拟人操作、启动封装、HITL 等待、失败存证。"""
+"""浏览器 RPA 共享库：stealth、拟人操作、启动封装、HITL 等待、失败存证、有界就绪等待。"""
 
 from __future__ import annotations
 
-from . import anti_detect, artifacts, errors, human_login, stealth
+from . import anti_detect, artifacts, errors, human_login, stealth, wait
 
 try:
     from .browser import launch_persistent_browser
@@ -14,14 +14,20 @@ try:
 except ImportError:
     RpaVideoSession = None  # type: ignore[misc, assignment]
 
+from .wait import PollUntilResult, poll_until, poll_until_sync
+
 __all__ = [
     "anti_detect",
     "artifacts",
     "errors",
     "human_login",
     "stealth",
+    "wait",
     "launch_persistent_browser",
     "RpaVideoSession",
+    "PollUntilResult",
+    "poll_until",
+    "poll_until_sync",
     # re-export common anti_detect helpers
     "random_delay",
     "human_delay_short",

src/jiangchang_skill_core/rpa/browser.py

@@ -2,10 +2,12 @@
 
 from __future__ import annotations
 
+import asyncio
 from typing import TYPE_CHECKING
 
 from .. import config
 from ..runtime_env import find_chrome_executable
+from .errors import ERR_BROWSER_START_TIMEOUT, ERR_MISSING_BROWSER
 from .stealth import (
     STEALTH_INIT_SCRIPT,
     persistent_context_launch_parts,
@@ -15,6 +17,23 @@ from .stealth import (
 if TYPE_CHECKING:
     from playwright.async_api import BrowserContext
 
+# 默认不设启动超时（保持 1.2.10 行为）；可通过参数或环境变量开启。
+_ENV_LAUNCH_TIMEOUT_MS = "OPENCLAW_BROWSER_LAUNCH_TIMEOUT_MS"
+
+
+def _resolve_launch_timeout_ms(timeout_ms: int | None) -> int | None:
+    if timeout_ms is not None:
+        value = int(timeout_ms)
+        return value if value > 0 else None
+    raw = (config.get(_ENV_LAUNCH_TIMEOUT_MS, default="") or "").strip()
+    if not raw:
+        return None
+    try:
+        value = int(raw)
+    except ValueError:
+        return None
+    return value if value > 0 else None
+
 
 async def launch_persistent_browser(
     playwright,
@@ -24,11 +43,17 @@ async def launch_persistent_browser(
     executable_path: str | None = None,
     headless: bool | None = None,
     extra_args: list[str] | None = None,
+    timeout_ms: int | None = None,
 ) -> "BrowserContext":
     """用 stealth 参数启动 persistent context + 注入 STEALTH_INIT_SCRIPT。
 
     headless=None 时读 OPENCLAW_BROWSER_HEADLESS。
     录屏由 RpaVideoSession（ffmpeg）负责，本函数不向 Playwright 传递任何录屏参数。
+
+    timeout_ms:
+        可选启动超时（毫秒）。为 None 时读 OPENCLAW_BROWSER_LAUNCH_TIMEOUT_MS；
+        仍为空则不包裹超时（与历史行为一致）。超时抛 RuntimeError，前缀
+        ERROR:BROWSER_START_TIMEOUT。本函数不做自动重试。
     """
     if headless is None:
         headless = config.get_bool("OPENCLAW_BROWSER_HEADLESS", default=False)
@@ -36,7 +61,7 @@ async def launch_persistent_browser(
     chrome = executable_path or find_chrome_executable()
     if not chrome:
         raise RuntimeError(
-            "ERROR:MISSING_BROWSER 未检测到 Chrome 或 Edge 浏览器，请安装后重试。"
+            f"{ERR_MISSING_BROWSER} 未检测到 Chrome 或 Edge 浏览器，请安装后重试。"
         )
 
     args, ignore = persistent_context_launch_parts(extra_args=extra_args)
@@ -51,7 +76,22 @@ async def launch_persistent_browser(
     if ignore is not None:
         launch_kwargs["ignore_default_args"] = ignore
 
-    context = await playwright.chromium.launch_persistent_context(**launch_kwargs)
+    launch_timeout_ms = _resolve_launch_timeout_ms(timeout_ms)
+    try:
+        if launch_timeout_ms is None:
+            context = await playwright.chromium.launch_persistent_context(**launch_kwargs)
+        else:
+            context = await asyncio.wait_for(
+                playwright.chromium.launch_persistent_context(**launch_kwargs),
+                timeout=launch_timeout_ms / 1000.0,
+            )
+    except asyncio.TimeoutError as exc:
+        raise RuntimeError(
+            f"{ERR_BROWSER_START_TIMEOUT} 浏览器启动超时"
+            f"（{launch_timeout_ms}ms）。机器限频/供电不足时易触发，可增大"
+            f" {_ENV_LAUNCH_TIMEOUT_MS} 后重试。"
+        ) from exc
+
     if stealth_enabled():
         await context.add_init_script(STEALTH_INIT_SCRIPT)
     return context

src/jiangchang_skill_core/rpa/errors.py

@@ -8,6 +8,11 @@ ERR_MISSING_BROWSER = "ERROR:MISSING_BROWSER"
 ERR_DEVICE_NOT_READY = "ERROR:DEVICE_NOT_READY"
 ERR_WINDOW_NOT_FOUND = "ERROR:WINDOW_NOT_FOUND"
 
+# 就绪 / 环境类（与配置门禁、MISSING_BROWSER 区分；是否 fatal/retryable 由技能决定）
+ERR_UI_NOT_READY = "ERROR:UI_NOT_READY"
+ERR_BROWSER_START_TIMEOUT = "ERROR:BROWSER_START_TIMEOUT"
+ERR_ENV_DEGRADED = "ERROR:ENV_DEGRADED"
+
 __all__ = [
     "ERR_REQUIRE_LOGIN",
     "ERR_LOGIN_TIMEOUT",
@@ -16,4 +21,7 @@ __all__ = [
     "ERR_MISSING_BROWSER",
     "ERR_DEVICE_NOT_READY",
     "ERR_WINDOW_NOT_FOUND",
+    "ERR_UI_NOT_READY",
+    "ERR_BROWSER_START_TIMEOUT",
+    "ERR_ENV_DEGRADED",
 ]

src/jiangchang_skill_core/rpa/wait.py

@@ -0,0 +1,112 @@
+"""有界就绪等待：在超时内轮询条件，区分「还在加载」与「时间到仍未就绪」。"""
+
+from __future__ import annotations
+
+import inspect
+import time
+from collections.abc import Awaitable, Callable
+from dataclasses import dataclass
+from typing import Union
+
+from ..activity import interruptible_sleep, interruptible_sleep_sync
+
+Predicate = Callable[[], Union[bool, Awaitable[bool]]]
+SyncPredicate = Callable[[], bool]
+
+
+@dataclass(frozen=True)
+class PollUntilResult:
+    """poll_until / poll_until_sync 的结果。"""
+
+    ok: bool
+    elapsed_sec: float
+    timed_out: bool = False
+
+    @property
+    def ready(self) -> bool:
+        return self.ok
+
+
+async def _call_predicate(predicate: Predicate) -> bool:
+    result = predicate()
+    if inspect.isawaitable(result):
+        result = await result  # type: ignore[misc]
+    return bool(result)
+
+
+async def poll_until(
+    predicate: Predicate,
+    *,
+    timeout_sec: float,
+    interval_sec: float = 0.5,
+) -> PollUntilResult:
+    """异步有界轮询，直到 ``predicate`` 为真或超时。
+
+    - 等待切片走 ``interruptible_sleep``，可响应宿主 pause/stop。
+    - ``predicate`` 可为同步或 async 可调用对象；异常视为尚未就绪（继续轮询）。
+    - 超时不抛异常，返回 ``timed_out=True``，由调用方映射错误码。
+    """
+    timeout = max(0.0, float(timeout_sec))
+    interval = max(0.05, float(interval_sec))
+    started = time.monotonic()
+    deadline = started + timeout
+
+    while True:
+        try:
+            if await _call_predicate(predicate):
+                return PollUntilResult(
+                    ok=True,
+                    elapsed_sec=round(time.monotonic() - started, 3),
+                    timed_out=False,
+                )
+        except Exception:
+            pass
+
+        remaining = deadline - time.monotonic()
+        if remaining <= 0:
+            return PollUntilResult(
+                ok=False,
+                elapsed_sec=round(time.monotonic() - started, 3),
+                timed_out=True,
+            )
+        await interruptible_sleep(min(interval, remaining))
+
+
+def poll_until_sync(
+    predicate: SyncPredicate,
+    *,
+    timeout_sec: float,
+    interval_sec: float = 0.5,
+) -> PollUntilResult:
+    """同步有界轮询（``interruptible_sleep_sync``）。"""
+    timeout = max(0.0, float(timeout_sec))
+    interval = max(0.05, float(interval_sec))
+    started = time.monotonic()
+    deadline = started + timeout
+
+    while True:
+        try:
+            if bool(predicate()):
+                return PollUntilResult(
+                    ok=True,
+                    elapsed_sec=round(time.monotonic() - started, 3),
+                    timed_out=False,
+                )
+        except Exception:
+            pass
+
+        remaining = deadline - time.monotonic()
+        if remaining <= 0:
+            return PollUntilResult(
+                ok=False,
+                elapsed_sec=round(time.monotonic() - started, 3),
+                timed_out=True,
+            )
+        interruptible_sleep_sync(min(interval, remaining))
+
+
+__all__ = [
+    "PollUntilResult",
+    "poll_until",
+    "poll_until_sync",
+]

src/jiangchang_skill_core/runtime_diagnostics.py

@@ -12,6 +12,7 @@ from typing import Any, Mapping
 
 import jiangchang_skill_core
 from . import config
+from .machine_power import probe_machine_power
 from .media_assets import probe_background_music, probe_media_assets, resolve_media_assets_root
 from .runtime_env import platform_default_data_root
 
@@ -51,6 +52,8 @@ class RuntimeDiagnostics:
 
     record_video_enabled: bool
     issues: tuple[RuntimeIssue, ...]
+    # 只读机器信号（供电/限频）；探不到为空 dict / probed=False，永不单独导致 fatal
+    machine_power: dict[str, Any]
 
     @property
     def has_fatal_issues(self) -> bool:
@@ -258,6 +261,12 @@ def collect_runtime_diagnostics(
             )
         )
 
+    # 附加项：只读供电/限频；异常吞掉，不影响 health fatal
+    try:
+        machine_power = probe_machine_power()
+    except Exception:
+        machine_power = {"probed": False, "ac_power": None, "nvidia": None}
+
     return RuntimeDiagnostics(
         skill_slug=skill_slug,
         python_executable=sys.executable,
@@ -276,6 +285,7 @@ def collect_runtime_diagnostics(
         background_music_sample_path=str(music_sample) if music_sample else None,
         record_video_enabled=record_video_enabled,
         issues=tuple(issues),
+        machine_power=machine_power,
     )
 
 
@@ -297,7 +307,24 @@ def format_runtime_health_lines(diagnostics: RuntimeDiagnostics) -> list[str]:
         f"background_music_issue: {diagnostics.background_music_issue or ''}",
         f"background_music_sample_path: {diagnostics.background_music_sample_path or ''}",
         f"record_video_enabled: {diagnostics.record_video_enabled}",
+        f"machine_power_probed: {bool((diagnostics.machine_power or {}).get('probed'))}",
     ]
+    power = diagnostics.machine_power or {}
+    ac = power.get("ac_power") or {}
+    if ac:
+        lines.append(f"machine_ac_line_status: {ac.get('ac_line_status', '')}")
+        lines.append(f"machine_on_ac_power: {ac.get('on_ac_power', '')}")
+        lines.append(f"machine_battery_life_percent: {ac.get('battery_life_percent', '')}")
+    nvidia = power.get("nvidia") or {}
+    if nvidia:
+        lines.append(f"machine_gpu_name: {nvidia.get('gpu_name', '')}")
+        lines.append(
+            f"machine_enforced_power_limit_w: {nvidia.get('enforced_power_limit_w', '')}"
+        )
+        lines.append(
+            "machine_clocks_throttle_reasons_active: "
+            f"{nvidia.get('clocks_throttle_reasons_active', '')}"
+        )
     for issue in diagnostics.issues:
         lines.append(f"runtime_issue[{issue.severity}]: {issue.code} - {issue.message}")
     return lines
@@ -321,6 +348,7 @@ def runtime_diagnostics_dict(diagnostics: RuntimeDiagnostics) -> dict[str, Any]:
         "background_music_issue": diagnostics.background_music_issue,
         "background_music_sample_path": diagnostics.background_music_sample_path,
         "record_video_enabled": diagnostics.record_video_enabled,
+        "machine_power": diagnostics.machine_power,
         "runtime_issues": [
             {"code": issue.code, "message": issue.message, "severity": issue.severity}
             for issue in diagnostics.issues

tests/test_rpa_wait_and_env.py

@@ -0,0 +1,190 @@
+# -*- coding: utf-8 -*-
+"""poll_until / 薄错误码 / browser launch timeout / machine_power 探测。"""
+from __future__ import annotations
+
+import asyncio
+from pathlib import Path
+from unittest.mock import MagicMock
+
+import pytest
+
+from jiangchang_skill_core.machine_power import probe_machine_power
+from jiangchang_skill_core.rpa import errors
+from jiangchang_skill_core.rpa.browser import launch_persistent_browser
+from jiangchang_skill_core.rpa.wait import poll_until, poll_until_sync
+
+
+def test_poll_until_succeeds_when_predicate_becomes_true(
+    monkeypatch: pytest.MonkeyPatch,
+) -> None:
+    sleeps: list[float] = []
+
+    async def _fake_sleep(seconds: float, *, chunk=None):
+        del chunk
+        sleeps.append(seconds)
+
+    monkeypatch.setattr(
+        "jiangchang_skill_core.rpa.wait.interruptible_sleep",
+        _fake_sleep,
+    )
+    state = {"n": 0}
+
+    def ready() -> bool:
+        state["n"] += 1
+        return state["n"] >= 3
+
+    result = asyncio.run(poll_until(ready, timeout_sec=2.0, interval_sec=0.1))
+    assert result.ok is True
+    assert result.timed_out is False
+    assert state["n"] == 3
+    assert sleeps
+
+
+def test_poll_until_times_out(monkeypatch: pytest.MonkeyPatch) -> None:
+    async def _fake_sleep(seconds: float, *, chunk=None):
+        del chunk, seconds
+
+    monkeypatch.setattr(
+        "jiangchang_skill_core.rpa.wait.interruptible_sleep",
+        _fake_sleep,
+    )
+    result = asyncio.run(poll_until(lambda: False, timeout_sec=0.01, interval_sec=0.01))
+    assert result.ok is False
+    assert result.timed_out is True
+
+
+def test_poll_until_sync_ok(monkeypatch: pytest.MonkeyPatch) -> None:
+    monkeypatch.setattr(
+        "jiangchang_skill_core.rpa.wait.interruptible_sleep_sync",
+        lambda seconds, *, chunk=None: None,
+    )
+    assert poll_until_sync(lambda: True, timeout_sec=1.0).ok is True
+
+
+def test_thin_error_codes_exist() -> None:
+    assert errors.ERR_UI_NOT_READY == "ERROR:UI_NOT_READY"
+    assert errors.ERR_BROWSER_START_TIMEOUT == "ERROR:BROWSER_START_TIMEOUT"
+    assert errors.ERR_ENV_DEGRADED == "ERROR:ENV_DEGRADED"
+    assert errors.ERR_MISSING_BROWSER == "ERROR:MISSING_BROWSER"
+
+
+def test_launch_persistent_browser_timeout_maps_code(
+    monkeypatch: pytest.MonkeyPatch,
+) -> None:
+    monkeypatch.setattr(
+        "jiangchang_skill_core.rpa.browser.find_chrome_executable",
+        lambda: r"C:\fake\chrome.exe",
+    )
+    monkeypatch.setattr(
+        "jiangchang_skill_core.rpa.browser.persistent_context_launch_parts",
+        lambda extra_args=None: ([], None),
+    )
+    monkeypatch.setattr(
+        "jiangchang_skill_core.rpa.browser.stealth_enabled",
+        lambda: False,
+    )
+
+    async def _hang(**kwargs):
+        del kwargs
+        await asyncio.sleep(10)
+        raise AssertionError("should have been cancelled by wait_for")
+
+    playwright = MagicMock()
+    playwright.chromium.launch_persistent_context = _hang
+
+    async def _run():
+        with pytest.raises(RuntimeError) as ctx:
+            await launch_persistent_browser(
+                playwright,
+                profile_dir=r"C:\fake\profile",
+                timeout_ms=50,
+            )
+        assert str(ctx.value).startswith(errors.ERR_BROWSER_START_TIMEOUT)
+
+    asyncio.run(_run())
+
+
+def test_launch_persistent_browser_missing_browser(
+    monkeypatch: pytest.MonkeyPatch,
+) -> None:
+    monkeypatch.setattr(
+        "jiangchang_skill_core.rpa.browser.find_chrome_executable",
+        lambda: None,
+    )
+
+    async def _run():
+        with pytest.raises(RuntimeError) as ctx:
+            await launch_persistent_browser(MagicMock(), profile_dir=r"C:\fake\profile")
+        assert str(ctx.value).startswith(errors.ERR_MISSING_BROWSER)
+
+    asyncio.run(_run())
+
+
+def test_probe_machine_power_shape_and_no_raise() -> None:
+    payload = probe_machine_power()
+    assert "probed" in payload
+    assert "ac_power" in payload
+    assert "nvidia" in payload
+    assert isinstance(payload["probed"], bool)
+
+
+def test_collect_runtime_diagnostics_includes_machine_power_without_fatal(
+    tmp_path: Path,
+    monkeypatch: pytest.MonkeyPatch,
+) -> None:
+    from jiangchang_skill_core import media_assets as ma
+    from jiangchang_skill_core.runtime_diagnostics import (
+        collect_runtime_diagnostics,
+        runtime_diagnostics_dict,
+    )
+
+    env = {"JIANGCHANG_DATA_ROOT": str(tmp_path / "data"), "OPENCLAW_RECORD_VIDEO": "0"}
+    monkeypatch.setattr(
+        "jiangchang_skill_core.runtime_diagnostics.probe_media_assets",
+        lambda *a, **k: ma.MediaAssetsStatus(
+            root=tmp_path,
+            exists=True,
+            ready=True,
+            source="local",
+            warnings=[],
+            ffmpeg_path=tmp_path / "ffmpeg.exe",
+            music_dir=tmp_path / "music",
+            music_ready=True,
+        ),
+    )
+    monkeypatch.setattr(
+        "jiangchang_skill_core.runtime_diagnostics.probe_background_music",
+        lambda *a, **k: {
+            "music_root": str(tmp_path / "music"),
+            "mp3_count": 1,
+            "usable_count": 1,
+            "sample_path": str(tmp_path / "music" / "a.mp3"),
+            "issue": None,
+        },
+    )
+    monkeypatch.setattr(
+        "jiangchang_skill_core.runtime_diagnostics._platform_kit_version",
+        lambda: "1.2.11",
+    )
+    monkeypatch.setattr(
+        "jiangchang_skill_core.runtime_diagnostics.probe_machine_power",
+        lambda: {
+            "probed": True,
+            "ac_power": {
+                "ac_line_status": 1,
+                "on_ac_power": True,
+                "battery_life_percent": 100,
+            },
+            "nvidia": {
+                "gpu_name": "Fake",
+                "enforced_power_limit_w": 140.0,
+                "power_limit_w": 140.0,
+                "clocks_throttle_reasons_active": "None",
+            },
+        },
+    )
+
+    diag = collect_runtime_diagnostics(skill_slug="demo", env=env)
+    payload = runtime_diagnostics_dict(diag)
+    assert payload["machine_power"]["probed"] is True
+    assert diag.has_fatal_issues is False

tests/test_runtime_diagnostics.py

@@ -357,6 +357,7 @@ def test_runtime_diagnostics_frozen_dataclass() -> None:
         background_music_sample_path=None,
         record_video_enabled=False,
         issues=(RuntimeIssue(code="ffmpeg_unavailable", message="no ffmpeg"),),
+        machine_power={"probed": False, "ac_power": None, "nvidia": None},
     )
     assert diag.has_fatal_issues is False
     assert diag.issue_codes() == ["ffmpeg_unavailable"]
@@ -381,6 +382,7 @@ def test_format_runtime_health_lines_issue_separator_ascii() -> None:
         background_music_sample_path=None,
         record_video_enabled=False,
         issues=(RuntimeIssue(code="ffmpeg_unavailable", message="no ffmpeg"),),
+        machine_power={"probed": False, "ac_power": None, "nvidia": None},
     )
     lines = format_runtime_health_lines(diag)
     issue_lines = [line for line in lines if line.startswith("runtime_issue[")]