Agent Skills: Post to X (Twitter)

Posts content and articles to X (Twitter). Supports regular posts with images/videos and X Articles (long-form Markdown). Uses real Chrome with CDP to bypass anti-automation. Use when user asks to "post to X", "tweet", "publish to Twitter", or "share on X".

UncategorizedID: jimliu/baoyu-skills/baoyu-post-to-x

Install this agent skill to your local

pnpm dlx add-skill https://github.com/JimLiu/baoyu-skills/tree/HEAD/skills/baoyu-post-to-x

Skill Files

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skills/baoyu-post-to-x/SKILL.md

Skill Metadata

Name
baoyu-post-to-x
Description
Posts content and articles to X (Twitter). Supports regular posts with images/videos and X Articles (long-form Markdown). Uses real Chrome with CDP to bypass anti-automation. Use when user asks to "post to X", "tweet", "publish to Twitter", or "share on X".

Post to X (Twitter)

Posts text, images, videos, and long-form articles to X via real Chrome browser (bypasses anti-bot detection).

Script Directory

Important: All scripts are located in the scripts/ subdirectory of this skill.

Agent Execution Instructions:

  1. Determine this SKILL.md file's directory path as {baseDir}
  2. Script path = {baseDir}/scripts/<script-name>.ts
  3. Replace all {baseDir} in this document with the actual path
  4. Resolve ${BUN_X} runtime: if bun installed → bun; if npx available → npx -y bun; else suggest installing bun

Script Reference: | Script | Purpose | |--------|---------| | scripts/x-browser.ts | Regular posts (text + images) | | scripts/x-video.ts | Video posts (text + video) | | scripts/x-quote.ts | Quote tweet with comment | | scripts/x-article.ts | Long-form article publishing (Markdown) | | scripts/md-to-html.ts | Markdown → HTML conversion | | scripts/copy-to-clipboard.ts | Copy content to clipboard | | scripts/paste-from-clipboard.ts | Send real paste keystroke | | scripts/check-paste-permissions.ts | Verify environment & permissions |

Preferences (EXTEND.md)

Check EXTEND.md existence (priority order):

# macOS, Linux, WSL, Git Bash
test -f .baoyu-skills/baoyu-post-to-x/EXTEND.md && echo "project"
test -f "${XDG_CONFIG_HOME:-$HOME/.config}/baoyu-skills/baoyu-post-to-x/EXTEND.md" && echo "xdg"
test -f "$HOME/.baoyu-skills/baoyu-post-to-x/EXTEND.md" && echo "user"
# PowerShell (Windows)
if (Test-Path .baoyu-skills/baoyu-post-to-x/EXTEND.md) { "project" }
$xdg = if ($env:XDG_CONFIG_HOME) { $env:XDG_CONFIG_HOME } else { "$HOME/.config" }
if (Test-Path "$xdg/baoyu-skills/baoyu-post-to-x/EXTEND.md") { "xdg" }
if (Test-Path "$HOME/.baoyu-skills/baoyu-post-to-x/EXTEND.md") { "user" }

┌──────────────────────────────────────────────────┬───────────────────┐ │ Path │ Location │ ├──────────────────────────────────────────────────┼───────────────────┤ │ .baoyu-skills/baoyu-post-to-x/EXTEND.md │ Project directory │ ├──────────────────────────────────────────────────┼───────────────────┤ │ $HOME/.baoyu-skills/baoyu-post-to-x/EXTEND.md │ User home │ └──────────────────────────────────────────────────┴───────────────────┘

┌───────────┬───────────────────────────────────────────────────────────────────────────┐ │ Result │ Action │ ├───────────┼───────────────────────────────────────────────────────────────────────────┤ │ Found │ Read, parse, apply settings │ ├───────────┼───────────────────────────────────────────────────────────────────────────┤ │ Not found │ Use defaults │ └───────────┴───────────────────────────────────────────────────────────────────────────┘

EXTEND.md Supports: Default Chrome profile

Prerequisites

  • Google Chrome or Chromium
  • bun runtime
  • First run: log in to X manually (session saved)

Pre-flight Check (Optional)

Before first use, suggest running the environment check. User can skip if they prefer.

${BUN_X} {baseDir}/scripts/check-paste-permissions.ts

Checks: Chrome, profile isolation, Bun, Accessibility, clipboard, paste keystroke, Chrome conflicts.

If any check fails, provide fix guidance per item:

| Check | Fix | |-------|-----| | Chrome | Install Chrome or set X_BROWSER_CHROME_PATH env var | | Profile dir | Shared profile at baoyu-skills/chrome-profile (see CLAUDE.md Chrome Profile section) | | Bun runtime | brew install oven-sh/bun/bun (macOS) or npm install -g bun | | Accessibility (macOS) | System Settings → Privacy & Security → Accessibility → enable terminal app | | Clipboard copy | Ensure Swift/AppKit available (macOS Xcode CLI tools: xcode-select --install) | | Paste keystroke (macOS) | Same as Accessibility fix above | | Paste keystroke (Linux) | Install xdotool (X11) or ydotool (Wayland) |

References

  • Regular Posts: See references/regular-posts.md for manual workflow, troubleshooting, and technical details
  • X Articles: See references/articles.md for long-form article publishing guide

Post Type Selection

Unless the user explicitly specifies the post type:

  • Plain text + within 10,000 characters → Regular Post (Premium members support up to 10,000 characters, non-Premium: 280)
  • Markdown file (.md) → X Article

Regular Posts

${BUN_X} {baseDir}/scripts/x-browser.ts "Hello!" --image ./photo.png

Parameters: | Parameter | Description | |-----------|-------------| | <text> | Post content (positional) | | --image <path> | Image file (repeatable, max 4) | | --profile <dir> | Custom Chrome profile |

Note: Script opens browser with content filled in. User reviews and publishes manually.


Video Posts

Text + video file.

${BUN_X} {baseDir}/scripts/x-video.ts "Check this out!" --video ./clip.mp4

Parameters: | Parameter | Description | |-----------|-------------| | <text> | Post content (positional) | | --video <path> | Video file (MP4, MOV, WebM) | | --profile <dir> | Custom Chrome profile |

Note: Script opens browser with content filled in. User reviews and publishes manually.

Limits: Regular 140s max, Premium 60min. Processing: 30-60s.


Quote Tweets

Quote an existing tweet with comment.

${BUN_X} {baseDir}/scripts/x-quote.ts https://x.com/user/status/123 "Great insight!"

Parameters: | Parameter | Description | |-----------|-------------| | <tweet-url> | URL to quote (positional) | | <comment> | Comment text (positional, optional) | | --profile <dir> | Custom Chrome profile |

Note: Script opens browser with content filled in. User reviews and publishes manually.


X Articles

Long-form Markdown articles (requires X Premium).

${BUN_X} {baseDir}/scripts/x-article.ts article.md
${BUN_X} {baseDir}/scripts/x-article.ts article.md --cover ./cover.jpg

Parameters: | Parameter | Description | |-----------|-------------| | <markdown> | Markdown file (positional) | | --cover <path> | Cover image | | --title <text> | Override title |

Frontmatter: title, cover_image supported in YAML front matter.

Note: Script opens browser with article filled in. User reviews and publishes manually.

Post-Composition Check: The script automatically verifies after all images are inserted:

  • Remaining XIMGPH_ placeholders in editor content
  • Expected vs actual image count

If the check fails (warnings in output), alert the user with the specific issues before they publish.


Troubleshooting

Chrome debug port not ready

If a script fails with Chrome debug port not ready or Unable to connect, kill existing Chrome CDP instances first, then retry:

pkill -f "Chrome.*remote-debugging-port" 2>/dev/null; pkill -f "Chromium.*remote-debugging-port" 2>/dev/null; sleep 2

Important: This should be done automatically — when encountering this error, kill Chrome CDP instances and retry the command without asking the user.

Notes

  • First run: manual login required (session persists)
  • All scripts only fill content into the browser, user must review and publish manually
  • Cross-platform: macOS, Linux, Windows

Extension Support

Custom configurations via EXTEND.md. See Preferences section for paths and supported options.

Post to X (Twitter) Skill | Agent Skills