How do I install the Browserwing skill?

Run npx skillmds@latest add kernel8901/browserwing in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

What does the Browserwing skill do?

BrowserWing Executor API It is listed under Integrations & APIs on SkillMD.

Is Browserwing safe to use?

This skill has not completed SkillMD's automated safety review yet. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Browserwing?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Browserwing free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Browserwing?

kernel8901 (@kernel8901) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Browserwing by kernel8901 — Agent Skill

Name: Browserwing
Author: kernel8901

BrowserWing Executor API

Overview

BrowserWing Executor provides comprehensive browser automation capabilities through HTTP APIs. You can control browser navigation, interact with page elements, extract data, and analyze page structure.

Configuration

API Base URL: The BrowserWing Executor API address is configurable via environment variable.

Environment Variable: BROWSERWING_EXECUTOR_URL
Default Value: http://127.0.0.1:8080
How to get the URL: Read from environment variable $BROWSERWING_EXECUTOR_URL, if not set, use default http://127.0.0.1:8080

Base URL Format: ${BROWSERWING_EXECUTOR_URL}/api/v1/executor or http://127.0.0.1:8080/api/v1/executor (if env var not set)

Authentication: Use X-BrowserWing-Key: <api-key> header or Authorization: Bearer <token> if required.

Important: Always construct the API URL by reading the environment variable first. In shell commands, use: ${BROWSERWING_EXECUTOR_URL:-http://127.0.0.1:8080}

Core Capabilities

Page Navigation: Navigate to URLs, go back/forward, reload
Element Interaction: Click, type, select, hover on page elements
Data Extraction: Extract text, attributes, values from elements
Accessibility Analysis: Get accessibility snapshot to understand page structure
Advanced Operations: Screenshot, JavaScript execution, keyboard input
Batch Processing: Execute multiple operations in sequence

API Endpoints

1. Discover Available Commands

IMPORTANT: Always call this endpoint first to see all available commands and their parameters.

EXECUTOR_URL="${BROWSERWING_EXECUTOR_URL:-http://127.0.0.1:8080}"
curl -X GET "${EXECUTOR_URL}/api/v1/executor/help"

Response: Returns complete list of all commands with parameters, examples, and usage guidelines.

Query specific command:

EXECUTOR_URL="${BROWSERWING_EXECUTOR_URL:-http://127.0.0.1:8080}"
curl -X GET "${EXECUTOR_URL}/api/v1/executor/help?command=extract"

2. Get Accessibility Snapshot

CRITICAL: Always call this after navigation to understand page structure and get element RefIDs.

EXECUTOR_URL="${BROWSERWING_EXECUTOR_URL:-http://127.0.0.1:8080}"
curl -X GET "${EXECUTOR_URL}/api/v1/executor/snapshot"

Response Example:

{
  "success": true,
  "snapshot_text": "Clickable Elements:\n  @e1 Login (role: button)\n  @e2 Sign Up (role: link)\n\nInput Elements:\n  @e3 Email (role: textbox) [placeholder: your@email.com]\n  @e4 Password (role: textbox)"
}

Use Cases:

Understand what interactive elements are on the page
Get element RefIDs (@e1, @e2, etc.) for precise identification
See element labels, roles, and attributes
The accessibility tree is cleaner than raw DOM and better for LLMs
RefIDs are stable references that work reliably across page changes

3. Common Operations

Note: All examples below use EXECUTOR_URL="${BROWSERWING_EXECUTOR_URL:-http://127.0.0.1:8080}" to read the API address from environment variable, with http://127.0.0.1:8080 as fallback default.

Navigate to URL

EXECUTOR_URL="${BROWSERWING_EXECUTOR_URL:-http://127.0.0.1:8080}"
curl -X POST "${EXECUTOR_URL}/api/v1/executor/navigate" \
  -H 'Content-Type: application/json' \
  -d '{"url": "https://example.com"}'

Click Element

EXECUTOR_URL="${BROWSERWING_EXECUTOR_URL:-http://127.0.0.1:8080}"
curl -X POST "${EXECUTOR_URL}/api/v1/executor/click" \
  -H 'Content-Type: application/json' \
  -d '{"identifier": "@e1"}'

Identifier formats:

RefID (Recommended): @e1, @e2 (from snapshot)
CSS Selector: #button-id, .class-name
XPath: //button[@type='submit']
Text: Login (text content)

Type Text

EXECUTOR_URL="${BROWSERWING_EXECUTOR_URL:-http://127.0.0.1:8080}"
curl -X POST "${EXECUTOR_URL}/api/v1/executor/type" \
  -H 'Content-Type: application/json' \
  -d '{"identifier": "@e3", "text": "user@example.com"}'

Extract Data

EXECUTOR_URL="${BROWSERWING_EXECUTOR_URL:-http://127.0.0.1:8080}"
curl -X POST "${EXECUTOR_URL}/api/v1/executor/extract" \
  -H 'Content-Type: application/json' \
  -d '{
    "selector": ".product-item",
    "fields": ["text", "href"],
    "multiple": true
  }'

Wait for Element

EXECUTOR_URL="${BROWSERWING_EXECUTOR_URL:-http://127.0.0.1:8080}"
curl -X POST "${EXECUTOR_URL}/api/v1/executor/wait" \
  -H 'Content-Type: application/json' \
  -d '{"identifier": ".loading", "state": "hidden", "timeout": 10}'

Batch Operations

EXECUTOR_URL="${BROWSERWING_EXECUTOR_URL:-http://127.0.0.1:8080}"
curl -X POST "${EXECUTOR_URL}/api/v1/executor/batch" \
  -H 'Content-Type: application/json' \
  -d '{
    "operations": [
      {"type": "navigate", "params": {"url": "https://example.com"}, "stop_on_error": true},
      {"type": "click", "params": {"identifier": "@e1"}, "stop_on_error": true},
      {"type": "type", "params": {"identifier": "@e3", "text": "query"}, "stop_on_error": true}
    ]
  }'

Instructions

Step-by-step workflow:

Get API URL: First, read the API base URL from environment variable $BROWSERWING_EXECUTOR_URL. If not set, use default http://127.0.0.1:8080. In shell commands, use: EXECUTOR_URL="${BROWSERWING_EXECUTOR_URL:-http://127.0.0.1:8080}"
Discover commands: Call GET /help to see all available operations and their parameters (do this first if unsure).
Navigate: Use POST /navigate to open the target webpage.
Analyze page: Call GET /snapshot to understand page structure and get element RefIDs.
Interact: Use element RefIDs (like @e1, @e2) or CSS selectors to:
- Click elements: POST /click
- Input text: POST /type
- Select options: POST /select
- Wait for elements: POST /wait
Extract data: Use POST /extract to get information from the page.
Present results: Format and show extracted data to the user.

Complete Example

User Request: "Search for 'laptop' on example.com and get the first 5 results"

Your Actions:

Navigate to search page:

curl -X POST 'http://127.0.0.1:18085/api/v1/executor/navigate' \
  -H 'Content-Type: application/json' \
  -d '{"url": "https://example.com/search"}'

Get page structure to find search input:

curl -X GET 'http://127.0.0.1:18085/api/v1/executor/snapshot'

Response shows: @e3 Search (role: textbox) [placeholder: Search...]

Type search query:

curl -X POST 'http://127.0.0.1:18085/api/v1/executor/type' \
  -H 'Content-Type: application/json' \
  -d '{"identifier": "@e3", "text": "laptop"}'

Press Enter to submit:

curl -X POST 'http://127.0.0.1:18085/api/v1/executor/press-key' \
  -H 'Content-Type: application/json' \
  -d '{"key": "Enter"}'

Wait for results to load:

curl -X POST 'http://127.0.0.1:18085/api/v1/executor/wait' \
  -H 'Content-Type: application/json' \
  -d '{"identifier": ".search-results", "state": "visible", "timeout": 10}'

Extract search results:

curl -X POST 'http://127.0.0.1:18085/api/v1/executor/extract' \
  -H 'Content-Type: application/json' \
  -d '{
    "selector": ".result-item",
    "fields": ["text", "href"],
    "multiple": true
  }'

Present the extracted data:

Found 15 results for 'laptop':
1. Gaming Laptop - $1299 (https://...)
2. Business Laptop - $899 (https://...)
...

Key Commands Reference

Navigation

POST /navigate - Navigate to URL
POST /go-back - Go back in history
POST /go-forward - Go forward in history
POST /reload - Reload current page

Element Interaction

POST /click - Click element (supports: RefID @e1, CSS selector, XPath, text content)
POST /type - Type text into input (supports: RefID @e3, CSS selector, XPath)
POST /select - Select dropdown option
POST /hover - Hover over element
POST /wait - Wait for element state (visible, hidden, enabled)
POST /press-key - Press keyboard key (Enter, Tab, Ctrl+S, etc.)

Data Extraction

POST /extract - Extract data from elements (supports multiple elements, custom fields)
POST /get-text - Get element text content
POST /get-value - Get input element value
GET /page-info - Get page URL and title
GET /page-text - Get all page text
GET /page-content - Get full HTML

Page Analysis

GET /snapshot - Get accessibility snapshot (⭐ ALWAYS call after navigation)
GET /clickable-elements - Get all clickable elements
GET /input-elements - Get all input elements

Advanced

POST /screenshot - Take page screenshot (base64 encoded)
POST /evaluate - Execute JavaScript code
POST /batch - Execute multiple operations in sequence
POST /scroll-to-bottom - Scroll to page bottom
POST /resize - Resize browser window
POST /tabs - Manage browser tabs (list, new, switch, close)
POST /fill-form - Intelligently fill multiple form fields at once

Debug & Monitoring

GET /console-messages - Get browser console messages (logs, warnings, errors)
GET /network-requests - Get network requests made by the page
POST /handle-dialog - Configure JavaScript dialog (alert, confirm, prompt) handling
POST /file-upload - Upload files to input elements
POST /drag - Drag and drop elements
POST /close-page - Close the current page/tab

Element Identification

You can identify elements using:

RefID (Recommended): @e1, @e2, @e3
- Most reliable method - stable across page changes
- Get RefIDs from /snapshot endpoint
- Valid for 5 minutes after snapshot
- Example: "identifier": "@e1"
- Works with multi-strategy fallback for robustness
CSS Selector: #id, .class, button[type="submit"]
- Standard CSS selectors
- Example: "identifier": "#login-button"
XPath: //button[@id='login'], //a[contains(text(), 'Submit')]
- XPath expressions for complex queries
- Example: "identifier": "//button[@id='login']"
Text Content: Login, Sign Up, Submit
- Searches buttons and links with matching text
- Example: "identifier": "Login"
ARIA Label: Elements with aria-label attribute
- Automatically searched

Guidelines

Before starting:

Get API URL first: Read from $BROWSERWING_EXECUTOR_URL environment variable, or use http://127.0.0.1:8080 as default
Call GET /help if you're unsure about available commands or their parameters
Ensure browser is started (if not, it will auto-start on first operation)

During automation:

Always call /snapshot after navigation to get page structure and RefIDs
Prefer RefIDs (like @e1) over CSS selectors for reliability and stability
Re-snapshot after page changes to get updated RefIDs
Use /wait for dynamic content that loads asynchronously
Check element states before interaction (visible, enabled)
Use /batch for multiple sequential operations to improve efficiency

Error handling:

If operation fails, check element identifier and try different format
For timeout errors, increase timeout value
If element not found, call /snapshot again to refresh page structure
Explain errors clearly to user with suggested solutions

Data extraction:

Use fields parameter to specify what to extract: ["text", "href", "src"]
Set multiple: true to extract from multiple elements
Format extracted data in a readable way for user

Complete Workflow Example

Scenario: User wants to login to a website

User: "Please log in to example.com with username 'john' and password 'secret123'"

Your Actions:

Step 1: Navigate to login page

EXECUTOR_URL="${BROWSERWING_EXECUTOR_URL:-http://127.0.0.1:8080}"
curl -X POST "${EXECUTOR_URL}/api/v1/executor/navigate" \
  -H 'Content-Type: application/json' \
  -d '{"url": "https://example.com/login"}'

Step 2: Get page structure

EXECUTOR_URL="${BROWSERWING_EXECUTOR_URL:-http://127.0.0.1:8080}"
curl -X GET "${EXECUTOR_URL}/api/v1/executor/snapshot"

Response:

Clickable Elements:
  @e1 Login (role: button)

Input Elements:
  @e2 Username (role: textbox)
  @e3 Password (role: textbox)

Step 3: Enter username

POST http://127.0.0.1:18085/api/v1/executor/type
{"identifier": "@e2", "text": "john"}

Step 4: Enter password

POST http://127.0.0.1:18085/api/v1/executor/type
{"identifier": "@e3", "text": "secret123"}

Step 5: Click login button

POST http://127.0.0.1:18085/api/v1/executor/click
{"identifier": "@e1"}

Step 6: Wait for login success (optional)

POST http://127.0.0.1:18085/api/v1/executor/wait
{"identifier": ".welcome-message", "state": "visible", "timeout": 10}

Step 7: Inform user

"Successfully logged in to example.com!"

Batch Operation Example

Scenario: Fill out a form with multiple fields

Instead of making 5 separate API calls, use one batch operation:

EXECUTOR_URL="${BROWSERWING_EXECUTOR_URL:-http://127.0.0.1:8080}"
curl -X POST "${EXECUTOR_URL}/api/v1/executor/batch" \
  -H 'Content-Type: application/json' \
  -d '{
    "operations": [
      {
        "type": "navigate",
        "params": {"url": "https://example.com/form"},
        "stop_on_error": true
      },
      {
        "type": "type",
        "params": {"identifier": "#name", "text": "John Doe"},
        "stop_on_error": true
      },
      {
        "type": "type",
        "params": {"identifier": "#email", "text": "john@example.com"},
        "stop_on_error": true
      },
      {
        "type": "select",
        "params": {"identifier": "#country", "value": "United States"},
        "stop_on_error": true
      },
      {
        "type": "click",
        "params": {"identifier": "#submit"},
        "stop_on_error": true
      }
    ]
  }'

Best Practices

Discovery first: If unsure, call /help or /help?command=<name> to learn about commands
Structure first: Always call /snapshot after navigation to understand the page
Use accessibility indices: They're more reliable than CSS selectors (elements might have dynamic classes)
Wait for dynamic content: Use /wait before interacting with elements that load asynchronously
Batch when possible: Use /batch for multiple sequential operations
Handle errors gracefully: Provide clear explanations and suggestions when operations fail
Verify results: After operations, check if desired outcome was achieved

Common Scenarios

Form Filling

Navigate to form page
Get accessibility snapshot to find input elements and their RefIDs
Use /type for each field: @e1, @e2, etc.
Use /select for dropdowns
Click submit button using its RefID

Data Scraping

Navigate to target page
Wait for content to load with /wait
Use /extract with CSS selector and multiple: true
Specify fields to extract: ["text", "href", "src"]

Search Operations

Navigate to search page
Get accessibility snapshot to locate search input
Type search query into input
Press Enter or click search button
Wait for results
Extract results data

Login Automation

Navigate to login page
Get accessibility snapshot to find RefIDs
Type username: @e2
Type password: @e3
Click login button: @e1
Wait for success indicator

Important Notes

Browser must be running (it will auto-start on first operation if needed)
Operations are executed on the currently active browser tab
Accessibility snapshot updates after each navigation and click operation
All timeouts are in seconds
Use wait_visible: true (default) for reliable element interaction
API address: Always read from $BROWSERWING_EXECUTOR_URL environment variable, fallback to http://127.0.0.1:8080 if not set
Authentication required: use X-BrowserWing-Key header or JWT token if configured

Troubleshooting

Element not found:

Call /snapshot to see available elements
Try different identifier format (accessibility index, CSS selector, text)
Check if page has finished loading

Timeout errors:

Increase timeout value in request
Check if element actually appears on page
Use /wait with appropriate state before interaction

Extraction returns empty:

Verify CSS selector matches target elements
Check if content has loaded (use /wait first)
Try different extraction fields or type

Quick Reference

EXECUTOR_URL="${BROWSERWING_EXECUTOR_URL:-http://127.0.0.1:8080}"

# Discover commands
curl -X GET "${EXECUTOR_URL}/api/v1/executor/help"

# Navigate
curl -X POST "${EXECUTOR_URL}/api/v1/executor/navigate" \
  -H 'Content-Type: application/json' \
  -d '{"url": "..."}'

# Get page structure
curl -X GET "${EXECUTOR_URL}/api/v1/executor/snapshot"

# Click element
curl -X POST "${EXECUTOR_URL}/api/v1/executor/click" \
  -H 'Content-Type: application/json' \
  -d '{"identifier": "@e1"}'

# Type text
curl -X POST "${EXECUTOR_URL}/api/v1/executor/type" \
  -H 'Content-Type: application/json' \
  -d '{"identifier": "@e3", "text": "..."}'

# Extract data
curl -X POST "${EXECUTOR_URL}/api/v1/executor/extract" \
  -H 'Content-Type: application/json' \
  -d '{"selector": "...", "fields": [...], "multiple": true}'

Response Format

All operations return:

{
  "success": true,
  "message": "Operation description",
  "timestamp": "2026-01-15T10:30:00Z",
  "data": {
    // Operation-specific data
  }
}

Error response:

{
  "error": "error.operationFailed",
  "detail": "Detailed error message"
}

Browserwing

File contents

BrowserWing Executor API

Overview

Configuration

Core Capabilities

API Endpoints

1. Discover Available Commands

2. Get Accessibility Snapshot

3. Common Operations

Navigate to URL

Click Element

Type Text

Extract Data

Wait for Element

Batch Operations

Instructions

Complete Example

Key Commands Reference

Navigation

Element Interaction

Data Extraction

Page Analysis

Advanced

Debug & Monitoring

Element Identification

Guidelines

Complete Workflow Example

Batch Operation Example

Best Practices

Common Scenarios

Form Filling

Data Scraping

Search Operations

Login Automation

Important Notes

Troubleshooting

Quick Reference

Response Format

Frequently asked questions

Browserwing

File contents

BrowserWing Executor API

Overview

Configuration

Core Capabilities

API Endpoints

1. Discover Available Commands

2. Get Accessibility Snapshot

3. Common Operations

Navigate to URL

Click Element

Type Text

Extract Data

Wait for Element

Batch Operations

Instructions

Complete Example

Key Commands Reference

Navigation

Element Interaction

Data Extraction

Page Analysis

Advanced

Debug & Monitoring

Element Identification

Guidelines

Complete Workflow Example

Batch Operation Example

Best Practices

Common Scenarios

Form Filling

Data Scraping

Search Operations

Login Automation

Important Notes

Troubleshooting

Quick Reference

Response Format

Related skills

Frequently asked questions

How do I install the Browserwing skill?

What does the Browserwing skill do?

Is Browserwing safe to use?

Which AI agents work with Browserwing?

Is Browserwing free to use?

Who published Browserwing?