Render `pages/page_NNN.html` to `screenshots/page_NNN.png` via the co-located screenshot.mjs (Playwright + chromium). Returns the screenshot

生成章节目录（只含 name 和 level，递归）。

Remove a single surrounding ``` / ```json markdown fence, if present.

去除 HTML 标签并反转义实体。

反转义 HTML 实体。

Verify that the downloaded image can be decoded completely.

Run a fast VLM QC check on a generated image. Returns None if the image is acceptable, or a short rejection reason if it should be dropped. T

* Dispatch a chart element to slide.addChart. Handles the 'combo' sentinel * by passing the array of {type,data,options} entries directly.

* 为非对称边框生成独立的线条元素。 * 仅当 1-3 条边有边框时使用（4 条边由 shape.line 处理）。

* 为带有 mask-image 的图片生成模拟 mask 的 SVG overlay。 * mask-image 中 alpha=1 的区域是可见的，alpha=0 是透明的。 * 我们用背景色填充 alpha=0 的区域来模拟遮罩效果。 * @param {Object} maskGrad

Return claim_id → claim dict from a list of evidence.json files.

创建带有通用参数的 ArgumentParser。

Build and return the top-level argument parser. Returns: argparse.ArgumentParser: Configured parser with subcommands for sn-i

Example: { "model": "dall-e-3", "prompt": "一只戴着墨镜的猫在赛博朋克城市的街道上喝咖啡, 赛璐璐画风", "n": 1, "s

Build the payload for the SenseNova image-generation endpoint. Args: prompt (str): The prompt to generate an image for.

构建 arXiv 查询字符串。

Call the vision API and return {description, usage}.

Caption all images in a directory.

Check that export_pptx script has its node_modules installed.

Raise if process file descriptor limit is too low for max_connections. Avoids 'Too many open files' mid-run when using a large httpx connection p

Enumerate optional env vars; always passes (informational only).

Check if Playwright Chromium is available (optional — export can skip).

Check that PPT_DECK_ROOT (or cwd fallback) is writable.

Verify that $(cwd)/ppt_decks/ can be created/written. Decks are always created under `$(cwd)/ppt_decks/` — in OpenClaw that resolves to the a

Check optional Python dependencies; always passed=True (informational).