lielingai/zhishi/agent-browser

Name: agent-browser
Author: lielingai

Claude Code and agent skill by lielingai/zhishi

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Browser automation CLI for AI agents. Use when the user needs to interact with websites, including navigating pages, filling forms, clicking buttons, taking screenshots, extracting data, testing web apps, or automating any browser task. Triggers include requests to "open a website", "fill out a form", "click a button", "take a screenshot", "scrape data from a page", "test this web app", "login to a site", "automate browser actions", or any task requiring programmatic web interaction.

Install

npx vskill@latest install lielingai/zhishi/agent-browser

SKILL.md

Browser Automation with agent-browser

First-time Setup

The CLI is not pre-installed with the app — install it on first use, then download Chromium. Always run this self-check before issuing any agent-browser command in a fresh environment.

Step 1: Verify or install the CLI

bash

# Probe by RUNNING the CLI (not just checking PATH presence). This catches the
# common case of a stale wrapper from a previous app version: it lives at
# ~/.zhishi/bin/agent-browser, satisfies `command -v`, but execs a deleted
# bundle path → fails with "cannot find file". `--version` exercises the real
# code path and triggers the install fallback when broken.
agent-browser --version >/dev/null 2>&1 || npm_config_prefix="${ZHISHI_NPM_GLOBAL_PREFIX:-$HOME/.zhishi/npm-global}" npm install -g agent-browser@0.15.1

The install lands in ~/.zhishi/npm-global/bin/agent-browser, which sits earlier in PATH than any legacy wrapper. ZhiShi exposes ZHISHI_NPM_GLOBAL_PREFIX for this command-local install instead of setting npm_config_prefix on the whole shell, so nvm-based user shells stay quiet. Subsequent agent-browser … calls find the new binary automatically.

Tell the user once that you're installing the browser tool (~few seconds the first time, instant afterward), then proceed.

If `npm install -g` fails

If the install fails (network blocked, registry unreachable, EACCES on a locked-down system Node), invoke the CLI via npx inline on every command — Bash aliases do not persist across separate tool calls in this environment, so each command must carry the prefix:

bash

# Use the npx prefix on EVERY command. Do not try to alias — it won't survive.
npx -y agent-browser@0.15.1 open https://example.com
npx -y agent-browser@0.15.1 snapshot -i
npx -y agent-browser@0.15.1 click @e1

This is slower (~1s overhead per call) but works without an install step.

Step 2: Download Chromium (~160MB, one-time)

bash

agent-browser install
# OR if you're on the npx fallback:
# npx -y agent-browser@0.15.1 install

Inform the user this download may take a minute on slow connections.

Troubleshooting

Symptom	Fix
`agent-browser` runs but shows "cannot find file"	Stale wrapper from a previous app version is shadowing the new install. The new install at `~/.zhishi/npm-global/bin/` should win on PATH; if it doesn't, run `which agent-browser` to see which path resolves first, then either remove the stale path or invoke the new binary by its absolute path.
`npm install -g` exits with the registry blocked / network error	Use the `npx` inline fallback above. If `npx` also fails, the user's network is blocking the npm registry — ask them about proxy / VPN.
`agent-browser install` fails to download Chromium	Network issue / GFW. User may need a proxy or VPN. Ask the user.
`Executable doesn't exist` mid-task	Chromium got deleted or the install never finished. Re-run `agent-browser install`.

Core Workflow

Every browser automation follows this pattern:

Navigate: agent-browser open <url>
Snapshot: agent-browser snapshot -i (get element refs like @e1, @e2)
Interact: Use refs to click, fill, select
Re-snapshot: After navigation or DOM changes, get fresh refs

bash

agent-browser open https://example.com/form
agent-browser snapshot -i
# Output: @e1 [input type="email"], @e2 [input type="password"], @e3 [button] "Submit"
 
agent-browser fill @e1 "user@example.com"
agent-browser fill @e2 "password123"
agent-browser click @e3
agent-browser wait --load networkidle
agent-browser snapshot -i  # Check result

Command Chaining

Commands can be chained with && in a single shell invocation. The browser persists between commands via a background daemon, so chaining is safe and more efficient than separate calls.

bash

# Chain open + wait + snapshot in one call
agent-browser open https://example.com && agent-browser wait --load networkidle && agent-browser snapshot -i
 
# Chain multiple interactions
agent-browser fill @e1 "user@example.com" && agent-browser fill @e2 "password123" && agent-browser click @e3
 
# Navigate and capture
agent-browser open https://example.com && agent-browser wait --load networkidle && agent-browser screenshot page.png

When to chain: Use && when you don't need to read the output of an intermediate command before proceeding (e.g., open + wait + screenshot). Run commands separately when you need to parse the output first (e.g., snapshot to discover refs, then interact using those refs).

Essential Commands

bash

# Navigation
agent-browser open <url>              # Navigate (aliases: goto, navigate)
agent-browser close                   # Close browser
 
# Snapshot
agent-browser snapshot -i             # Interactive elements with refs (recommended)
agent-browser snapshot -i -C          # Include cursor-interactive elements (divs with onclick, cursor:pointer)
agent-browser snapshot -s "#selector" # Scope to CSS selector
 
# Interaction (use @refs from snapshot)
agent-browser click @e1               # Click element
agent-browser click @e1 --new-tab     # Click and open in new tab
agent-browser fill @e2 "text"         # Clear and type text
agent-browser type @e2 "text"         # Type without clearing
agent-browser select @e1 "option"     # Select dropdown option
agent-browser check @e1               # Check checkbox
agent-browser press Enter             # Press key
agent-browser keyboard type "text"    # Type at current focus (no selector)
agent-browser keyboard inserttext "text"  # Insert without key events
agent-browser scroll down 500         # Scroll page
agent-browser scroll down 500 --selector "div.content"  # Scroll within a specific container
 
# Get information
agent-browser get text @e1            # Get element text
agent-browser get url                 # Get current URL
agent-browser get title               # Get page title
 
# Wait
agent-browser wait @e1                # Wait for element
agent-browser wait --load networkidle # Wait for network idle
agent-browser wait --url "**/page"    # Wait for URL pattern
agent-browser wait 2000               # Wait milliseconds
 
# Downloads
agent-browser download @e1 ./file.pdf          # Click element to trigger download
agent-browser wait --download ./output.zip     # Wait for any download to complete
agent-browser --download-path ./downloads open <url>  # Set default download directory
 
# Capture
agent-browser screenshot              # Screenshot to temp dir
agent-browser screenshot --full       # Full page screenshot
agent-browser screenshot --annotate   # Annotated screenshot with numbered element labels
agent-browser pdf output.pdf          # Save as PDF
 
# Diff (compare page states)
agent-browser diff snapshot                          # Compare current vs last snapshot
agent-browser diff snapshot --baseline before.txt    # Compare current vs saved file
agent-browser diff screenshot --baseline before.png  # Visual pixel diff
agent-browser diff url <url1> <url2>                 # Compare two pages
agent-browser diff url <url1> <url2> --wait-until networkidle  # Custom wait strategy
agent-browser diff url <url1> <url2> --selector "#main"  # Scope to element

Common Patterns

Form Submission

bash

agent-browser open https://example.com/signup
agent-browser snapshot -i
agent-browser fill @e1 "Jane Doe"
agent-browser fill @e2 "jane@example.com"
agent-browser select @e3 "California"
agent-browser check @e4
agent-browser click @e5
agent-browser wait --load networkidle

Authentication with Auth Vault (Recommended)

bash

# Save credentials once (encrypted with AGENT_BROWSER_ENCRYPTION_KEY)
# Recommended: pipe password via stdin to avoid shell history exposure
echo "pass" | agent-browser auth save github --url https://github.com/login --username user --password-stdin
 
# Login using saved profile (LLM never sees password)
agent-browser auth login github
 
# List/show/delete profiles
agent-browser auth list
agent-browser auth show github
agent-browser auth delete github

Authentication with State Persistence

bash

# Login once and save state
agent-browser open https://app.example.com/login
agent-browser snapshot -i
agent-browser fill @e1 "$USERNAME"
agent-browser fill @e2 "$PASSWORD"
agent-browser click @e3
agent-browser wait --url "**/dashboard"
agent-browser state save auth.json
 
# Reuse in future sessions
agent-browser state load auth.json
agent-browser open https://app.example.com/dashboard

Session Persistence

bash

# Auto-save/restore cookies and localStorage across browser restarts
agent-browser --session-name myapp open https://app.example.com/login
# ... login flow ...
agent-browser close  # State auto-saved to ~/.agent-browser/sessions/
 
# Next time, state is auto-loaded
agent-browser --session-name myapp open https://app.example.com/dashboard
 
# Encrypt state at rest
export AGENT_BROWSER_ENCRYPTION_KEY=$(openssl rand -hex 32)
agent-browser --session-name secure open https://app.example.com
 
# Manage saved states
agent-browser state list
agent-browser state show myapp-default.json
agent-browser state clear myapp
agent-browser state clean --older-than 7

Data Extraction

bash

agent-browser open https://example.com/products
agent-browser snapshot -i
agent-browser get text @e5           # Get specific element text
agent-browser get text body > page.txt  # Get all page text
 
# JSON output for parsing
agent-browser snapshot -i --json
agent-browser get text @e1 --json

Parallel Sessions

bash

agent-browser --session site1 open https://site-a.com
agent-browser --session site2 open https://site-b.com
 
agent-browser --session site1 snapshot -i
agent-browser --session site2 snapshot -i
 
agent-browser session list

Connect to Existing Chrome

bash

# Auto-discover running Chrome with remote debugging enabled
agent-browser --auto-connect open https://example.com
agent-browser --auto-connect snapshot
 
# Or with explicit CDP port
agent-browser --cdp 9222 snapshot

Color Scheme (Dark Mode)

bash

# Persistent dark mode via flag (applies to all pages and new tabs)
agent-browser --color-scheme dark open https://example.com
 
# Or via environment variable
AGENT_BROWSER_COLOR_SCHEME=dark agent-browser open https://example.com
 
# Or set during session (persists for subsequent commands)
agent-browser set media dark

Visual Browser (Debugging)

bash

agent-browser --headed open https://example.com
agent-browser highlight @e1          # Highlight element
agent-browser record start demo.webm # Record session
agent-browser profiler start         # Start Chrome DevTools profiling
agent-browser profiler stop trace.json # Stop and save profile (path optional)

Local Files (PDFs, HTML)

bash

# Open local files with file:// URLs
agent-browser --allow-file-access open file:///path/to/document.pdf
agent-browser --allow-file-access open file:///path/to/page.html
agent-browser screenshot output.png

iOS Simulator (Mobile Safari)

bash

# List available iOS simulators
agent-browser device list
 
# Launch Safari on a specific device
agent-browser -p ios --device "iPhone 16 Pro" open https://example.com
 
# Same workflow as desktop - snapshot, interact, re-snapshot
agent-browser -p ios snapshot -i
agent-browser -p ios tap @e1          # Tap (alias for click)
agent-browser -p ios fill @e2 "text"
agent-browser -p ios swipe up         # Mobile-specific gesture
 
# Take screenshot
agent-browser -p ios screenshot mobile.png
 
# Close session (shuts down simulator)
agent-browser -p ios close

Requirements: macOS with Xcode, Appium (npm_config_prefix="${ZHISHI_NPM_GLOBAL_PREFIX:-$HOME/.zhishi/npm-global}" npm install -g appium && appium driver install xcuitest)

Real devices: Works with physical iOS devices if pre-configured. Use --device "<UDID>" where UDID is from xcrun xctrace list devices.

Security

This is the start of the file. Read the full SKILL.md on GitHub.

Security

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Model reviewPassed

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Source

SKILL.md in the repositoryCheckingbundled-skills/agent-browser/SKILL.md

Popularity

Repository stars: 92
Repository forks: 5
7-day trend score: 0

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Something wrong with this skill or its page? Tell us.

Install

SKILL.md

Browser Automation with agent-browser

First-time Setup

Step 1: Verify or install the CLI

If npm install -g fails

Step 2: Download Chromium (~160MB, one-time)

Troubleshooting

Core Workflow

Command Chaining

Essential Commands

Common Patterns

Form Submission

Authentication with Auth Vault (Recommended)

Authentication with State Persistence

Session Persistence

Data Extraction

Parallel Sessions

Connect to Existing Chrome

Color Scheme (Dark Mode)

Visual Browser (Debugging)

Local Files (PDFs, HTML)

iOS Simulator (Mobile Safari)

Security

Security

Quality evaluation

Source

Popularity

Works with

If `npm install -g` fails