Cdp Connect

What it does

When your agent uses it

• You need to interact with a browser the agent already started
• Control an existing Chrome instance
• Drive browser automation without Playwright MCP
• Connect to browser

Example prompts

• “/cdp-connect”

Requirements

• Node.js

Workflow steps

5 steps, taken from the first numbered list in SKILL.md.

1. 1Discover — list to see tabs and their unique IDs
2. 2Understand — ax-tree for page structure (prefer over dom)
3. 3Interact — navigate, click, type, eval as needed
4. 4Verify — screenshot /tmp/shot.png, then Read the PNG
5. 5Debug — console or network to stream events

What it can do on your machine

Read from SKILL.md and the folder at commit cbc9952. It shows what the files ask for, not the result of running them.

• Tool permissions

  Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

  From allowed-tools in the SKILL.md frontmatter.

• Runs code

  Ships 1 file in scripts/ (JavaScript), which the agent can run.

  Shell commands in SKILL.md call:

  • node
  • npm

  From the folder's file list and the shell code blocks in SKILL.md.

• Network

  No URLs in SKILL.md. Its commands use npm, which can reach the network depending on how they are called.

  From URLs in SKILL.md, links to its own repository left out.

• Credentials

  Names no API keys, tokens, secrets or passwords.

  From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Cdp Connect loads about 847 tokens when it runs. Until then it costs about 162 tokens; SKILL.md has 202 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it

~162

When it runs · the whole SKILL.md, loaded when a task matches

~847

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); the scripts in this folder are not scanned.

SKILL.md

The full file from adobe/skills at commit cbc9952, republished under its Apache-2.0 licence (© adobe). 202 words, ~847 tokens.

name

cdp-connect

description

Connect Claude Code to an existing Chrome browser via CDP (Chrome DevTools Protocol). Zero dependencies — uses Node 22 built-in WebSocket. Attach to any Chrome running with --remote-debugging-port, then navigate, click, type, screenshot, evaluate JS, read accessibility tree, and monitor console/network. Use when you need to interact with a browser the agent already started, control an existing Chrome instance, or drive browser automation without Playwright MCP. Triggers on: cdp connect, connect to browser, connect to chrome, attach to browser, interact with browser, drive browser, browser automation, control chrome, connect 9222.

license

Apache-2.0

# Launched manually:
chrome --remote-debugging-port=9222

# Or by a dev server that launches Chrome:
npm run dev  # if it opens Chrome with --remote-debugging-port

if [[ -n "${CLAUDE_SKILL_DIR:-}" ]]; then
  CDP_JS="${CLAUDE_SKILL_DIR}/scripts/cdp.js"
else
  CDP_JS="$(command -v cdp.js 2>/dev/null || \
    find ~/.claude -path "*/cdp-connect/scripts/cdp.js" -type f 2>/dev/null | head -1)"
fi
if [[ -z "$CDP_JS" || ! -f "$CDP_JS" ]]; then
  echo "Error: cdp.js not found. Ask the user for the path." >&2
fi

node "$CDP_JS" list                            # Show all tabs with IDs
node "$CDP_JS" navigate <url> [--id <tid>]     # Navigate to URL
node "$CDP_JS" eval <expr> [--id <tid>]        # Evaluate JavaScript
node "$CDP_JS" screenshot <path> [--id <tid>]  # Save screenshot as PNG
node "$CDP_JS" ax-tree [--id <tid>]            # Accessibility tree (primary)
node "$CDP_JS" dom [--id <tid>]                # Full HTML (fallback)
node "$CDP_JS" click <selector> [--id <tid>]   # Click element
node "$CDP_JS" type <sel> <text> [--id <tid>]  # Type into element
node "$CDP_JS" console [--timeout 10]          # Stream console events
node "$CDP_JS" network [--timeout 10]          # Stream network events

© adobe, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 4 other files (scripts) in plugins/web/skills/cdp-connect of adobe/skills.

• SKILL.md
• .releaserc.json
• evals/evals.json
• package.json
• scripts/cdp.js

Open the folder on GitHubat commit cbc9952