为 Agent 提供可弹性伸缩的云端浏览器

Use Lexmount Browser through browser-cli for remote browser work.

Goal:
- Prefer browser-cli commands over handwritten Playwright.
- If Lexmount credentials are missing, guide me through browser-cli auth login.
- Never ask me to paste API keys or full direct browser URLs into chat.
- API keys must not appear in localhost callback URLs; browser-cli exchanges a one-time code with PKCE.

Official site:
- Lexmount Browser console: https://browser.lexmount.cn
- Use it to sign in, register, authorize CLI access, and manage browser projects.

Install:
1. Check whether browser-cli is already installed: browser-cli --version
2. If browser-cli is missing and uv is missing, install uv:
   curl -LsSf https://astral.sh/uv/install.sh | sh
3. Install or update browser-cli to 0.3.8 or newer:
   uv tool install --force git+https://github.com/lexmount/browser-cli.git
4. Install or update the packaged Codex skill:
   browser-cli skill status
   browser-cli skill install --force
   browser-cli skill status
5. Verify installation:
   browser-cli --version
   browser-cli version

Connect:
1. Run: browser-cli auth status
2. If credentials are missing or unusable, run:
   browser-cli auth login --open --connect-base-url https://browser.lexmount.cn --client-name Codex
3. Complete the https://browser.lexmount.cn Connect from Agent flow in the opened browser.
4. Confirm auth login reports authenticated=true or credentials_saved=true.
5. After login succeeds, run: browser-cli doctor --json

Installation result:
- browser-cli is installed or updated.
- The Lexmount Browser Codex skill is installed under the Codex skills directory.
- The API credential is saved by browser-cli auth login; do not paste API keys into chat.

Cleanup:
- To remove saved local browser-cli credentials, run:
  browser-cli auth clear-credentials
- If that command returns unset_env_commands, run those commands in the parent shell too.
- Use browser-cli auth logout --revoke only when you intentionally want remote token revocation.

Use:
- Create browser sessions with browser-cli session create.
- Inspect first with browser-cli action observe or browser-cli action interactive-snapshot.
- Prefer semantic actions such as click-role, click-text, fill-label, wait-role, get-text-role, exists-role, hover-role, press-role, and screenshots.
- If a page requires login, captcha, SMS verification, or QR-code scanning, do not just say that it is blocked. Get the current session inspect_url / inspectUrl from the session metadata or latest command output, open that URL with the available local/embedded browser, and ask the user to complete the handoff there. If no inspect URL is available, report that blocker explicitly.
- Do not paste full direct browser connect URLs into chat. Use inspect_url / inspectUrl for human handoff; use --reveal-connect-url only in a trusted local terminal when explicitly needed for debugging.
- For repeatable tasks, inspect browser-cli commands --workflow case_file_task and use case scaffold/run.
- Close temporary sessions unless I explicitly ask to keep them open.

Use Lexmount WebFetch through webfetch-cli when the task only needs page extraction or DOM dump.

Goal:
- Prefer webfetch-cli for lightweight page extraction instead of opening a remote browser session.
- Use browser-cli only when interactive browser state, clicking, screenshots, or live session control is needed.
- Never ask me to paste API keys into chat.
- API keys must not appear in localhost callback URLs; webfetch-cli exchanges a one-time code with PKCE.

Official site:
- Lexmount Browser console: https://browser.lexmount.cn
- Use it to sign in, register, authorize CLI access, and manage WebFetch project credentials.

Install:
1. Check whether webfetch-cli is already installed: webfetch-cli --version
2. If webfetch-cli is missing and uv is missing, install uv:
   curl -LsSf https://astral.sh/uv/install.sh | sh
3. Install or update webfetch-cli to 0.1.5 or newer:
   uv tool install --force git+https://github.com/lexmount/webfetch-cli.git
4. Install or update the packaged Codex skill:
   webfetch-cli skill status
   webfetch-cli skill install --force
   webfetch-cli skill status
5. Verify installation:
   webfetch-cli --version
   webfetch-cli capabilities --json

Connect:
1. Run: webfetch-cli auth status
2. If credentials are missing or unusable, run:
   webfetch-cli auth login --open --connect-base-url https://browser.lexmount.cn --client-name Codex
3. Complete the https://browser.lexmount.cn Connect from Agent flow in the opened browser.
4. Confirm auth login reports authenticated=true or credentials_saved=true.
5. After login succeeds, run: webfetch-cli doctor --json

Installation result:
- webfetch-cli is installed or updated.
- The Lexmount WebFetch Codex skill is installed under the Codex skills directory.
- The API credential is saved by webfetch-cli auth login; do not paste API keys into chat.

Use:
- Extract structured page content with:
  webfetch-cli extract --url https://example.com
- Dump rendered DOM with:
  webfetch-cli dump-dom --url https://example.com
- If extract needs an existing DOM snapshot, use:
  webfetch-cli extract --dom-id <dom_id>
- Use --format json-full only when debugging full API responses.

Cleanup:
- To remove saved local webfetch-cli credentials, run:
  webfetch-cli auth clear-credentials