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    uBrowser

    uBrowser

    by Fairy Squadmother

    High-performance, low-token browser automation with batched actions, session persistence, and compact snapshots.

    Updated May 2026
    Security scanned
    One-time purchase

    $15

    · or 75 credits

    One-time purchase

    30-day refund guarantee

    Secure checkout via Stripe

    Included in download

    • Scrape structured data from paginated results or dynamic JS sites.
    • Test login and authentication flows with persistent session cookies.
    • terminal, file_read, file_write automation included
    • Includes example output and usage patterns
    • Instant install

    See it in action

    A real example of what this skill takes in and produces.

    Sample output

    uBrowser Results

    • Target: https://app.example.com
    • Elapsed: 12.4s
    • Batch calls: 1
    • Session: persisted
    • Steps:
      • PASS: Navigated to /billing
      • PASS: Updated card on file
    • Extraction:
      • 1 receipt found
    • Network:
      • 200 OK /api/v1/billing
    • Evidence: Final URL: https://app.example.com/billing/success

    About This Skill

    Fast, Low-Token Browser Automation

    uBrowser is a high-performance automation skill designed for developers who need to control web browsers without the token bloat of standard LLM-web interactions. It solves the "chatty" nature of AI automation by batching multiple actions—like navigating, typing, and clicking—into a single execution window, significantly reducing latency and cost.

    What it does

    Instead of the AI thinking after every single click, uBrowser allows for browser_batch execution. It handles complex multi-step workflows like logging into dashboards, filling out multi-page forms, and scraping data behind authentication walls. It uses compact snapshots to provide the AI with a lightweight representation of the DOM, focusing only on interactive elements to stay within context limits.

    Supported Capabilities

    • Persistent Sessions: Maintain logins across different runs using local profile directories.
    • Network/Console Inspection: Debug AJAX failures and JS errors directly from the agent.
    • Intelligent Extraction: Pull structured data, tables, and links into clean JSON formats.
    • Compact Snapshots: 70% smaller payloads compared to full DOM traces.

    Why it's better than standard prompting

    Most AI agents fail at web tasks because they get lost in large HTML files or run out of tokens during long flows. uBrowser provides a specialized MCP layer that optimizes the "vision" of the AI, making it faster, cheaper, and far more reliable for production-grade scraping and testing.

    Use Cases

    • Automate multi-step checkout and account management workflows.
    • Scrape structured data from paginated results or dynamic JS sites.
    • Test login and authentication flows with persistent session cookies.
    • Debug web apps by inspecting network requests and console logs.
    • Fill and submit complex multi-page forms with a single batched command.

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    Security Scanned

    Passed automated security review

    Permissions

    Terminal / Shell
    Read Files
    Write Files
    Network Access

    File Scopes

    ./ubrowser-sessions/**/*
    ./automation-scripts/**/*.json
    ./test-results/**/*.json

    uBrowser needs terminal access to start the uBrowser MCP server and run browser automation commands. All browser operations (navigate, click, type) are executed through the MCP server, not directly by the skill. File read access allows the skill to load automation templates and saved session profiles. File write access saves session data (cookies, localStorage) between runs so you stay logged in across sessions. All file writes are disclosed to the user. Network access is handled by the uBrowser MCP server, which connects to target websites. The skill itself makes no direct network calls. No environment variable access is required.

    Tags

    browser-automation
    scraping
    mcp-server
    testing
    web-automation

    Works with Claude Code and Codex. Requires uBrowser MCP server installed (`npx uBrowser` or via cc-switch). Node.js 18+ required. Session persistence keeps you logged in across sessions.

    Creator

    Fairy Squadmother

    Fairy Squadmother sells skills for people with real work, limited patience, and a low tolerance for software pageantry. Her skills help creators, founders, freelancers, and practical humans turn repeatable messes into reusable systems. Promptcrud. Taskspawn. Filefog. Launch splatter. Documentation drift. The weird little admin barnacles that attach themselves to anything worth doing. She builds for the moment when you know the process can be better, but you do not have a spare week to go spelunking through your own workflow with a headlamp and a grudge. Clear instructions. Useful defaults. Less performance. More usable machinery. Onward.

    Frequently Asked Questions

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