nishu@nishu-linux:~/.openclaw/workspace/openclaw-web-search-mcp$ node
Welcome to Node.js v25.5.0.
Type ".help" for more information.
> const { execSync } = require("child_process");
undefined
> 
> const url = "https://www.youtube.com/watch?v=aircAruvnKk";
undefined
> 
> const result = execSync(`yt-dlp --skip-download --write-auto-sub --sub-lang en --print-json ${url}`, { encoding: "utf-8" });

WARNING: [youtube] YouTube said: ERROR - Precondition check failed.
WARNING: [youtube] HTTP Error 400: Bad Request. Retrying (1/3)...
WARNING: [youtube] YouTube said: ERROR - Precondition check failed.
WARNING: [youtube] HTTP Error 400: Bad Request. Retrying (2/3)...
WARNING: [youtube] YouTube said: ERROR - Precondition check failed.
WARNING: [youtube] HTTP Error 400: Bad Request. Retrying (3/3)...
WARNING: [youtube] YouTube said: ERROR - Precondition check failed.
WARNING: [youtube] Unable to download API page: HTTP Error 400: Bad Request (caused by <HTTPError 400: Bad Request>)
WARNING: [youtube] YouTube said: ERROR - Precondition check failed.
WARNING: [youtube] HTTP Error 400: Bad Request. Retrying (1/3)...
WARNING: [youtube] YouTube said: ERROR - Precondition check failed.
WARNING: [youtube] HTTP Error 400: Bad Request. Retrying (2/3)...
WARNING: [youtube] YouTube said: ERROR - Precondition check failed.
WARNING: [youtube] HTTP Error 400: Bad Request. Retrying (3/3)...
WARNING: [youtube] YouTube said: ERROR - Precondition check failed.
WARNING: [youtube] Unable to download API page: HTTP Error 400: Bad Request (caused by <HTTPError 400: Bad Request>)
WARNING: [youtube] aircAruvnKk: nsig extraction failed: You may experience throttling for some formats
         n = tF-mTyt38-arHT5Z ; player = https://www.youtube.com/s/player/6c5cb4f4/player_es6.vflset/en_US/base.js
Uncaught:
<ref *1> Error: spawnSync /bin/sh ENOBUFS
    at Object.spawnSync (node:internal/child_process:1103:20)
    at spawnSync (node:child_process:911:24)
    at execSync (node:child_process:992:15) {
  errno: -105,
  code: 'ENOBUFS',
  syscall: 'spawnSync /bin/sh',
  path: '/bin/sh',
  spawnargs: [
    '-c',
    'yt-dlp --skip-download --write-auto-sub --sub-lang en --print-json https://www.youtube.com/watch?v=aircAruvnKk'
  ],
  error: [Circular *1],
  status: null,
  signal: 'SIGTERM',
  output: [
    null,
    '{"id": "aircAruvnKk", "title": "But what is a neural network? | Deep learning chapter 1", "formats": [{"format_id": "sb3", "format_note": "storyboard", "ext": "mhtml", "protocol": "mhtml", "acodec": "none", "vcodec": "none", "url": "https://i.ytimg.com/sb/aircAruvnKk/storyboard3_L0/default.jpg?sqp=-oaymwENSDfyq4qpAwVwAcABBqLzl_8DBgivyL_HBg==&sigh=rs$AOn4CLDZUcG2fQj5Cu2uSs-aaJgBC2nZQg", "width": 48, "height": 27, "fps": 0.08928571428571429, "rows": 10, "columns": 10, "fragments": [{"url": "https://i.ytimg.com/sb/aircAruvnKk/storyboard3_L0/default.jpg?sqp=-oaymwENSDfyq4qpAwVwAcABBqLzl_8DBgivyL_HBg==&sigh=rs$AOn4CLDZUcG2fQj5Cu2uSs-aaJgBC2nZQg", "duration": 1120.0}], "resolution": "48x27", "aspect_ratio": 1.78, "filesize_approx": null, "http_headers": {"User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/94.0.4606.41 Safari/537.36", "Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8", "Accept-Language": "en-us,en;q=0.5", "Sec-Fetch-Mode": "navigate"}, "audio_ext": "none", "video_ext": "none", "vbr": 0, "abr": 0, "tbr": null, "format": "sb3 - 48x27 (storyboard)"}, {"format_id": "sb2", "format_note": "storyboard", "ext": "mhtml", "protocol": "mhtml", "acodec": "none", "vcodec": "none", "url": "https://i.ytimg.com/sb/aircAruvnKk/storyboard3_L1/M$M.jpg?sqp=-oaymwENSDfyq4qpAwVwAcABBqLzl_8DBgivyL_HBg==&sigh=rs$AOn4CLDzKrh_xrz7Yvnp-41CZ12eJlOAqQ", "width": 80, "height": 45, "fps": 0.10089285714285715, "rows": 10, "columns": 10, "fragments": [{"url": "https://i.ytimg.com/sb/aircAruvnKk/storyboard3_L1/M0.jpg?sqp=-oaymwENSDfyq4qpAwVwAcABBqLzl_8DBgivyL_HBg==&sigh=rs$AOn4CLDzKrh_xrz7Yvnp-41CZ12eJlOAqQ", "duration": 991.1504424778763}, {"url": "https://i.ytimg.com/sb/aircAruvnKk/storyboard3_L1/M1.jpg?sqp=-oaymwENSDfyq4qpAwVwAcABBqLzl_8DBgivyL_HBg==&sigh=rs$AOn4CLDzKrh_xrz7Yvnp-41CZ12eJlOAqQ", "duration": 128.84955752212375}], "resolution": "80x45", "aspect_ratio": 1.78, "filesize_approx": null, "http_headers": {"User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/94.0.4606.41 Safari/537.36", "Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8", "Accept-Language": "en-us,en;q=0.5", "Sec-Fetch-Mode": "navigate"}, "audio_ext": "none", "video_ext": "none", "vbr": 0, "abr": 0, "tbr": null, "format": "sb2 - 80x45 (storyboard)"}, {"format_id": "sb1", "format_note": "storyboard", "ext": "mhtml", "protocol": "mhtml", "acodec": "none", "vcodec": "none", "url": "https://i.ytimg.com/sb/aircAruvnKk/storyboard3_L2/M$M.jpg?sqp=-oaymwENSDfyq4qpAwVwAcABBqLzl_8DBgivyL_HBg==&sigh=rs$AOn4CLDf6upw5pK0Hiz7KBPV2nGCjfvi9Q", "width": 160, "height": 90, "fps": 0.10089285714285715, "rows": 5, "columns": 5, "fragments": [{"url": "https://i.ytimg.com/sb/aircAruvnKk/storyboard3_L2/M0.jpg?sqp=-oaymwENSDfyq4qpAwVwAcABBqLzl_8DBgivyL_HBg==&sigh=rs$AOn4CLDf6upw5pK0Hiz7KBPV2nGCjfvi9Q", "duration": 247.78761061946906}, {"url": "https://i.ytimg.com/sb/aircAruvnKk/storyboard3_L2/M1.jpg?sqp=-oaymwENSDfyq4qpAwVwAcABBqLzl_8DBgivyL_HBg==&sigh=rs$AOn4CLDf6upw5pK0Hiz7KBPV2nGCjfvi9Q", "duration": 247.78761061946906}, {"url": "https://i.ytimg.com/sb/aircAruvnKk/storyboard3_L2/M2.jpg?sqp=-oaymwENSDfyq4qpAwVwAcABBqLzl_8DBgivyL_HBg==&sigh=rs$AOn4CLDf6upw5pK0Hiz7KBPV2nGCjfvi9Q", "duration": 247.78761061946906}, {"url": "https://i.ytimg.com/sb/aircAruvnKk/storyboard3_L2/M3.jpg?sqp=-oaymwENSDfyq4qpAwVwAcABBqLzl_8DBgivyL_HBg==&sigh=rs$AOn4CLDf6upw5pK0Hiz7KBPV2nGCjfvi9Q", "duration": 247.78761061946906}, {"url": "https://i.ytimg.com/sb/aircAruvnKk/storyboard3_L2/M4.jpg?sqp=-oaymwENSDfyq4qpAwVwAcABBqLzl_8DBgivyL_HBg==&sigh=rs$AOn4CLDf6upw5pK0Hiz7KBPV2nGCjfvi9Q", "duration": 128.84955752212375}], "resolution": "160x90", "aspect_ratio": 1.78, "filesize_approx": null, "http_headers": {"User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/94.0.4606.41 Safari/537.36", "Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8", "Accept-Language": "en-us,en;q=0.5", "Sec-Fetch-Mode": "navigate"}, "audio_ext": "none", "video_ext": "none", "vbr": 0, "abr": 0, "tbr": null, "format": "sb1 - 160x90 (storyboard)"}, {"format_id": "sb0", "format_note": "storyboard", "ext": "mhtml", "protocol": "mhtml", "acodec": "none", "vcodec": "none", "url": "https://i.ytimg.com/sb/aircAruvnKk/storyboard3_L3/M$M.jpg?sqp=-oaymwENSDfyq4qpAwVwAcABBqLzl_8DBgivyL_HBg==&sigh=rs$AOn4CLCsSJzLDRBsYCmQTxvysPXjr5mp8w", "width": 320, "height": 180, "fps": 0.10089285714285715, "rows": 3, "columns": 3, "fragments": [{"url": "https://i.ytimg.com/sb/aircAruvnKk/storyboard3_L3/M0.jpg?sqp=-oaymwENSDfyq4qpAwVwAcABBqLzl_8DBgivyL_HBg==&sigh=rs$AOn4CLCsSJzLDRBsYCmQTxvysPXjr5mp8w", "duration": 89.20353982300885}, {"url": "https://i.ytimg.com/sb/aircAruvnKk/storyboard3_L3/M1.jpg?sqp=-oaymwENSDfyq4qpAwVwAcABBqLzl_8DBgivyL_HBg==&sigh=rs$AOn4CLCsSJzLDRBsYCmQTxvysPXjr5mp8w", "duration": 89.20353982300885}, {"url": "https://i.ytimg.com/sb/aircAruvnKk/storyboard3_L3/M2.jpg?sqp=-oaymwENSDfyq4qpAwVwAcABBqLzl_8DBgivyL_HBg==&sigh=rs$AOn4CLCsSJzLDRBsYCmQTxvysPXjr5mp8w", "duration": 89.20353982300885}, {"url": "https://i.ytimg.com/sb/aircAruvnKk/storyboard3_L3/M3.jpg?sqp=-oaymwENSDfyq4qpAwVwAcABBqLzl_8DBgivyL_HBg==&sigh=rs$AOn4CLCsSJzLDRBsYCmQTxvysPXjr5mp8w", "duration": 89.20353982300885}, {"url": "https://i.ytimg.com/sb/aircAruvnKk/storyboard3_L3/M4.jpg?sqp=-oaymwENSDfyq4qpAwVwAcABBqLzl_8DBgivyL_HBg==&sigh=rs$AOn4CLCsSJzLDRBsYCmQTxvysPXjr5mp8w", "duration": 89.20353982300885}, {"url": "https://i.ytimg.com/sb/aircAruvnKk/storyboard3_L3/M5.jpg?sqp=-oaymwENSDfyq4qpAwVwAcABBqLzl_8DBgivyL_HBg==&sigh=rs$AOn4CLCsSJzLDRBsYCmQTxvysPXjr5mp8w", "duration": 89.20353982300885}, {"url": "https://i.ytimg.com/sb/aircAruvnKk/storyboard3_L3/M6.jpg?sqp=-oaymwENSDfyq4qpAwVwAcABBqLzl_8DBgivyL_HBg==&sigh=rs$AOn4CLCsSJzLDRBsYCmQTxvysPXjr5mp8w", "duration": 89.20353982300885}, {"url": "https://i.ytimg.com/sb/aircAruvnKk/storyboard3_L3/M7.jpg?sqp=-oaymwENSDfyq4qpAwVwAcABBqLzl_8DBgivyL_HBg==&sigh=rs$AOn4CLCsSJzLDRBsYCmQTxvysPXjr5mp8w", "duration": 89.20353982300885}, {"url": "https://i.ytimg.com/sb/aircAruvnKk/storyboard3_L3/M8.jpg?sqp=-oaymwENSDfyq4qpAwVwAcABBqLzl_8DBgivyL_HBg==&sigh=rs$AOn4CLCsSJzLDRBsYCmQTxvysPXjr5mp8w", "duration": 89.20353982300885}, {"url": "https://i.ytimg.com/sb/aircAruvnKk/storyboard3_L3/M9.jpg?sqp=-oaymwENSDfyq4qpAwVwAcABBqLzl_8DBgivyL_HBg==&sigh=rs$AOn4CLCsSJzLDRBsYCmQTxvysPXjr5mp8w", "duration": 89.20353982300885}, {"url": "https://i.ytimg.com/sb/aircAruvnKk/storyboard3_L3/M10.jpg?sqp=-oaymwENSDfyq4qpAwVwAcABBqLzl_8DBgivyL_HBg==&sigh=rs$AOn4CLCsSJzLDRBsYCmQTxvysPXjr5mp8w", "duration": 89.20353982300885}, {"url": "https://i.ytimg.com/sb/aircAruvnKk/storyboard3_L3/M11.jpg?sqp=-oaymwENSDfyq4qpAwVwAcABBqLzl_8DBgivyL_HBg==&sigh=rs$AOn4CLCsSJzLDRBsYCmQTxvysPXjr5mp8w", "duration": 89.20353982300885}, {"url": "https://i.ytimg.com/sb/aircAruvnKk/storyboard3_L3/M12.jpg?sqp=-oaymwENSDfyq4qpAwVwAcABBqLzl_8DBgivyL_HBg==&sigh=rs$AOn4CLCsSJzLDRBsYCmQTxvysPXjr5mp8w", "duration": 49.557522123893705}], "resolution": "320x180", "aspect_ratio": 1.78, "filesize_approx": null, "http_headers": {"User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/94.0.4606.41 Safari/537.36", "Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8", "Accept-Language": "en-us,en;q=0.5", "Sec-Fetch-Mode": "navigate"}, "audio_ext": "none", "video_ext": "none", "vbr": 0, "abr": 0, "tbr": null, "format": "sb0 - 320x180 (storyboard)"}, {"asr": 44100, "filesize": 36533246, "format_id": "18", "format_note": "360p, THROTTLED", "source_preference": -10, "fps": 30, "audio_channels": 2, "height": 360, "quality": 6.0, "has_drm": false, "tbr": 260.953, "filesize_approx": 36533126, "url": "https://rr2---sn-ci5gup-2o9l.googlevideo.com/videoplayback?expire=1772905827&ei=AxGsac6vN6CFpt8PyOvMyQ4&ip=122.170.194.239&id=o-ALZZOLpfOQ1eSeVB4rqU0KorfXy_pNza6m5VdEKxbndt&itag=18&source=youtube&requiressl=yes&xpc=EgVo2aDSNQ%3D%3D&cps=1037&met=1772884227%2C&mh=FK&mm=31%2C29&mn=sn-ci5gup-2o9l%2Csn-ci5gup-cvhel&ms=au%2Crdu&mv=m&mvi=2&pl=22&rms=au%2Cau&initcwndbps=1687500&bui=AVNa5-xgOiXhVZ3sFnN2vZladw_cqC1911mNOwmV-8L0SsWPgGVO-FLQigzesnmEG_ADgrx3mtp240R3&spc=6dlaFBSsBF3hJBhSk_sk6KdRELYV9U6bdqoLOfCRsSWTn6Nq-vG7BEJg05vX_i1kHFn-PS41&vprv=1&svpuc=1&mime=video%2Fmp4&ns=VJS9MR4uEGpelFxOd7EE60YT&rqh=1&gir=yes&clen=36533246&ratebypass=yes&dur=1119.991&lmt=1761986133085554&mt=1772883684&fvip=1&fexp=51565116%2C51565682%2C51791334&c=WEB&sefc=1&txp=4538534&n=tF-mTyt38-arHT5Z&sparams=expire%2Cei%2Cip%2Cid%2Citag%2Csource%2Crequiressl%2Cxpc%2Cbui%2Cspc%2Cvprv%2Csvpuc%2Cmime%2Cns%2Crqh%2Cgir%2Cclen%2Cratebypass%2Cdur%2Clmt&sig=AHEqNM4wRQIhANNmtzegcqfF_vy4K3lojFJoJPN47MYdAxxyu6exO-LpAiA1C1WVUN9SfiQQSRIYmb3Bxtv3kivbNJWVIpYTE6qGYA%3D%3D&lsparams=cps%2Cmet%2Cmh%2Cmm%2Cmn%2Cms%2Cmv%2Cmvi%2Cpl%2Crms%2Cinitcwndbps&lsig=APaTxxMwRAIgVcvihA7gzQQp3n2KOhX2XngIAutc0HQcGzMsmS3kvi8CIG5PAhkKwg4239DKhYDXLxG3dupIK6HbjcvNQFTyhXVA", "width": 640, "language": "en", "language_preference": -1, "preference": null, "ext": "mp4", "vcodec": "avc1.42001E", "acodec": "mp4a.40.2", "dynamic_range": "SDR", "downloader_options": {"http_chunk_size": 10485760}, "protocol": "https", "resolution": "640x360", "aspect_ratio": 1.78, "http_headers": {"User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/94.0.4606.41 Safari/537.36", "Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8", "Accept-Language": "en-us,en;q=0.5", "Sec-Fetch-Mode": "navigate"}, "video_ext": "mp4", "audio_ext": "none", "vbr": null, "abr": null, "format": "18 - 640x360 (360p, THROTTLED)"}], "thumbnails": [{"url": "https://i.ytimg.com/vi/aircAruvnKk/3.jpg", "preference": -37, "id": "0"}, {"url": "https://i.ytimg.com/vi_webp/aircAruvnKk/3.webp", "preference": -36, "id": "1"}, {"url": "https://i.ytimg.com/vi/aircAruvnKk/2.jpg", "preference": -35, "id'... 1038576 more characters,
    'WARNING: [youtube] YouTube said: ERROR - Precondition check failed.\n' +
      'WARNING: [youtube] HTTP Error 400: Bad Request. Retrying (1/3)...\n' +
      'WARNING: [youtube] YouTube said: ERROR - Precondition check failed.\n' +
      'WARNING: [youtube] HTTP Error 400: Bad Request. Retrying (2/3)...\n' +
      'WARNING: [youtube] YouTube said: ERROR - Precondition check failed.\n' +
      'WARNING: [youtube] HTTP Error 400: Bad Request. Retrying (3/3)...\n' +
      'WARNING: [youtube] YouTube said: ERROR - Precondition check failed.\n' +
      'WARNING: [youtube] Unable to download API page: HTTP Error 400: Bad Request (caused by <HTTPError 400: Bad Request>)\n' +
      'WARNING: [youtube] YouTube said: ERROR - Precondition check failed.\n' +
      'WARNING: [youtube] HTTP Error 400: Bad Request. Retrying (1/3)...\n' +
      'WARNING: [youtube] YouTube said: ERROR - Precondition check failed.\n' +
      'WARNING: [youtube] HTTP Error 400: Bad Request. Retrying (2/3)...\n' +
      'WARNING: [youtube] YouTube said: ERROR - Precondition check failed.\n' +
      'WARNING: [youtube] HTTP Error 400: Bad Request. Retrying (3/3)...\n' +
      'WARNING: [youtube] YouTube said: ERROR - Precondition check failed.\n' +
      'WARNING: [youtube] Unable to download API page: HTTP Error 400: Bad Request (caused by <HTTPError 400: Bad Request>)\n' +
      'WARNING: [youtube] aircAruvnKk: nsig extraction failed: You may experience throttling for some formats\n' +
      '         n = tF-mTyt38-arHT5Z ; player = https://www.youtube.com/s/player/6c5cb4f4/player_es6.vflset/en_US/base.js\n'
  ],
  pid: 26279,
  stdout: '{"id": "aircAruvnKk", "title": "But what is a neural network? | Deep learning chapter 1", "formats": [{"format_id": "sb3", "format_note": "storyboard", "ext": "mhtml", "protocol": "mhtml", "acodec": "none", "vcodec": "none", "url": "https://i.ytimg.com/sb/aircAruvnKk/storyboard3_L0/default.jpg?sqp=-oaymwENSDfyq4qpAwVwAcABBqLzl_8DBgivyL_HBg==&sigh=rs$AOn4CLDZUcG2fQj5Cu2uSs-aaJgBC2nZQg", "width": 48, "height": 27, "fps": 0.08928571428571429, "rows": 10, "columns": 10, "fragments": [{"url": "https://i.ytimg.com/sb/aircAruvnKk/storyboard3_L0/default.jpg?sqp=-oaymwENSDfyq4qpAwVwAcABBqLzl_8DBgivyL_HBg==&sigh=rs$AOn4CLDZUcG2fQj5Cu2uSs-aaJgBC2nZQg", "duration": 1120.0}], "resolution": "48x27", "aspect_ratio": 1.78, "filesize_approx": null, "http_headers": {"User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/94.0.4606.41 Safari/537.36", "Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8", "Accept-Language": "en-us,en;q=0.5", "Sec-Fetch-Mode": "navigate"}, "audio_ext": "none", "video_ext": "none", "vbr": 0, "abr": 0, "tbr": null, "format": "sb3 - 48x27 (storyboard)"}, {"format_id": "sb2", "format_note": "storyboard", "ext": "mhtml", "protocol": "mhtml", "acodec": "none", "vcodec": "none", "url": "https://i.ytimg.com/sb/aircAruvnKk/storyboard3_L1/M$M.jpg?sqp=-oaymwENSDfyq4qpAwVwAcABBqLzl_8DBgivyL_HBg==&sigh=rs$AOn4CLDzKrh_xrz7Yvnp-41CZ12eJlOAqQ", "width": 80, "height": 45, "fps": 0.10089285714285715, "rows": 10, "columns": 10, "fragments": [{"url": "https://i.ytimg.com/sb/aircAruvnKk/storyboard3_L1/M0.jpg?sqp=-oaymwENSDfyq4qpAwVwAcABBqLzl_8DBgivyL_HBg==&sigh=rs$AOn4CLDzKrh_xrz7Yvnp-41CZ12eJlOAqQ", "duration": 991.1504424778763}, {"url": "https://i.ytimg.com/sb/aircAruvnKk/storyboard3_L1/M1.jpg?sqp=-oaymwENSDfyq4qpAwVwAcABBqLzl_8DBgivyL_HBg==&sigh=rs$AOn4CLDzKrh_xrz7Yvnp-41CZ12eJlOAqQ", "duration": 128.84955752212375}], "resolution": "80x45", "aspect_ratio": 1.78, "filesize_approx": null, "http_headers": {"User-Agent": "Mozilla/5.0 (Windows NT 10.0; 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Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/94.0.4606.41 Safari/537.36", "Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8", "Accept-Language": "en-us,en;q=0.5", "Sec-Fetch-Mode": "navigate"}, "video_ext": "mp4", "audio_ext": "none", "vbr": null, "abr": null, "format": "18 - 640x360 (360p, THROTTLED)"}], "thumbnails": [{"url": "https://i.ytimg.com/vi/aircAruvnKk/3.jpg", "preference": -37, "id": "0"}, {"url": "https://i.ytimg.com/vi_webp/aircAruvnKk/3.webp", "preference": -36, "id": "1"}, {"url": "https://i.ytimg.com/vi/aircAruvnKk/2.jpg", "preference": -35, "id'... 1038576 more characters,
  stderr: 'WARNING: [youtube] YouTube said: ERROR - Precondition check failed.\n' +
    'WARNING: [youtube] HTTP Error 400: Bad Request. Retrying (1/3)...\n' +
    'WARNING: [youtube] YouTube said: ERROR - Precondition check failed.\n' +
    'WARNING: [youtube] HTTP Error 400: Bad Request. Retrying (2/3)...\n' +
    'WARNING: [youtube] YouTube said: ERROR - Precondition check failed.\n' +
    'WARNING: [youtube] HTTP Error 400: Bad Request. Retrying (3/3)...\n' +
    'WARNING: [youtube] YouTube said: ERROR - Precondition check failed.\n' +
    'WARNING: [youtube] Unable to download API page: HTTP Error 400: Bad Request (caused by <HTTPError 400: Bad Request>)\n' +
    'WARNING: [youtube] YouTube said: ERROR - Precondition check failed.\n' +
    'WARNING: [youtube] HTTP Error 400: Bad Request. Retrying (1/3)...\n' +
    'WARNING: [youtube] YouTube said: ERROR - Precondition check failed.\n' +
    'WARNING: [youtube] HTTP Error 400: Bad Request. Retrying (2/3)...\n' +
    'WARNING: [youtube] YouTube said: ERROR - Precondition check failed.\n' +
    'WARNING: [youtube] HTTP Error 400: Bad Request. Retrying (3/3)...\n' +
    'WARNING: [youtube] YouTube said: ERROR - Precondition check failed.\n' +
    'WARNING: [youtube] Unable to download API page: HTTP Error 400: Bad Request (caused by <HTTPError 400: Bad Request>)\n' +
    'WARNING: [youtube] aircAruvnKk: nsig extraction failed: You may experience throttling for some formats\n' +
    '         n = tF-mTyt38-arHT5Z ; player = https://www.youtube.com/s/player/6c5cb4f4/player_es6.vflset/en_US/base.js\n'
}
> 
> console.log(result);
Uncaught ReferenceError: result is not defined
> 
> 
(To exit, press Ctrl+C again or Ctrl+D or type .exit)
> 
nishu@nishu-linux:~/.openclaw/workspace/openclaw-web-search-mcp$ node index.js youtube_transcript '{"url":"https://www.youtube.com/watch?v=aircAruvnKk"}'
{"transcript":"","segments":[],"error":"Command failed: yt-dlp \"https://www.youtube.com/watch?v=aircAruvnKk\" --skip-download --write-auto-sub --sub-lang en --convert-subs json --output \"/home/nishu/.openclaw/workspace/openclaw-web-search-mcp/extraction/tmp_subtitles.json\""}
nishu@nishu-linux:~/.openclaw/workspace/openclaw-web-search-mcp$ 

