BrowserSkill

BrowserSkill connects Cursor, Claude Code, Codex, OpenClaw, CodeBuddy, WorkBuddy, Pi, Hermes Agent, DeepSeek Harness, and other AI agents to your already logged-in browser.

Need the agent to touch a tab you already have open? It must borrow that tab explicitly, return it when the task is done, and leave the rest of your browser alone.

https://github.com/user-attachments/assets/db782c92-b1d4-4aae-a255-039675937a90

BrowserSkill Advantages

• Reuse real login state: Agents can work with sites you are already signed into, without separate test accounts.
• Keep working uninterrupted: browser tasks run in a separate, visible Agent Window, so you can keep using your own browser.
• Support any Agent: any Agent that can call a shell can use BrowserSkill through the bsk CLI, with no lock-in to a specific model, Agent framework, or harness.
• Built-in human-in-loop: when a task hits captcha, login, confirmation dialogs, or other human-only steps, the Agent can ask you to take over and then continue afterwards.

Runtime Environment

BrowserSkill has two local runtime pieces: the bsk CLI/daemon and the browser extension.

Quick Start

Already using Cursor, Claude Code, Codex, or another shell-capable agent? Just copy this one line and send it to your agent — it will install the CLI and skill for you, then walk you through loading the extension:

Set up browser-skill on this machine by following https://raw.githubusercontent.com/Tencent/BrowserSkill/main/AGENT_INSTALL.md

Install the CLI, then install the extension from the Chrome Web Store or Edge Add-ons.

1. Install the bsk CLI

macOS / Linux (recommended — installs to ~/.local/bin):

curl -fsSL https://raw.githubusercontent.com/Tencent/BrowserSkill/main/install.sh | sh

Windows (PowerShell — installs to ~/.local/bin):

irm https://raw.githubusercontent.com/Tencent/BrowserSkill/main/install.ps1 | iex

Verify the binary:

bsk --version

2. Install the browser extension

Install BrowserSkill from your browser's store:

On other Chromium-based browsers, install the Chrome Web Store build.

3. Install the skill

BrowserSkill ships a skill that teaches your agent harness how to use bsk. For these harnesses, install it in one step:

bsk install-skill

Use Space to select the Agent harness you want to install into, then press Enter to install the skill. Run bsk install-skill --list to see internal variants and install paths.

Other shell-capable agent harnesses are supported too. Copy skill/SKILL.md into your harness's skills directory as browser-skill/SKILL.md to install the skill manually. DeepSeek Harness uses a dedicated plugin instead — see DeepSeek Harness plugin.

Start a new Agent session and write a prompt that needs the browser, for example:

/browser-skill open example.com and summarize what is on the page.

DeepSeek Harness plugin

Using DeepSeek Harness (dsh)? BrowserSkill ships a first-class dsh plugin on npm as @wxg-prc-cpg/browser-skill-dsh-plugin. It injects native browser_* tools (no shelling out to bsk) and a live Web UI overlay of each Agent Window.

Add it to a dsh profile, then start that profile:

dsh plugin --profile web add @wxg-prc-cpg/browser-skill-dsh-plugin
dsh --profile web

The plugin carries its own copy of the skill, so bsk install-skill is not needed for dsh — but the bsk CLI and the browser extension are still prerequisites. See the plugin README for the tool list, configuration, and the observation overlay.

How It Works

BrowserSkill is a local bridge between your agent harness and your browser.

flowchart TB
  subgraph Harness["Agent Harness"]
    Agent["Cursor / Claude Code / Codex / OpenClaw"]
  end

  subgraph Local["Your Machine"]
    CLI["bsk CLI"]
    Daemon["bsk daemon"]
    Extension["BrowserSkill extension"]
  end

  subgraph Browser["Browser Profile"]
    AgentWindow["Agent Window"]
    UserWindows["Your normal browser windows"]
  end

  Agent -->|"shell: bsk ..."| CLI
  CLI -->|"local IPC"| Daemon
  Daemon -->|"WebSocket on 127.0.0.1"| Extension
  Extension -->|"automates"| AgentWindow
  Extension -.->|"borrow tab only when asked"| UserWindows

  style AgentWindow fill:#fff4e6,stroke:#f59e0b,stroke-width:2px,color:#111827
  style UserWindows fill:#f8fafc,stroke:#cbd5e1,color:#334155

The agent never talks to the browser directly. It asks the bsk CLI to perform a browser task; the local daemon routes that request to the extension; the extension runs it in an Agent Window. DeepSeek Harness takes the same path through the plugin: the agent calls injected browser_* tools, and the plugin invokes bsk on its behalf.

For Developers

The repository is a Cargo + pnpm workspace:

• crates/bsk-cli — bsk CLI and local daemon
• crates/bsk-protocol — shared wire types and JSON schemas
• apps/extension — browser extension
• packages/ui and packages/i18n — shared extension UI support
• packages/dsh-plugin-browserskill — DeepSeek Harness plugin (@wxg-prc-cpg/browser-skill-dsh-plugin)
• evals/browser — deterministic local pages and agent-neutral browser capability evaluation

License

MIT