# browser_navigate

Navigate to a URL

Agent View of the PolicyLayer registry record for `browser_navigate`. HTML page: https://policylayer.com/tools/a11y-agent-skills/browser-navigate

## Facts

- Tool: `browser_navigate`
- Server: A11y Agent Skills (`smukh/a11y-agent-skills`) — https://policylayer.com/tools/a11y-agent-skills.md
- Homepage: https://github.com/smukh/a11y-agent-skills
- Risk category: Execute (High risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Rate-limited

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "browser_navigate",
    "arguments": {}
  }
}
```

## Why browser_navigate is rated High

Navigation to arbitrary URLs constitutes execution of external operations. The tool's effects depend entirely on the argument (the URL), which could load malicious sites, trigger redirects, or interact with third-party services. This is Execute rather than Read because it actively triggers navigation and its side effects are not merely informational retrieval.

From the tool's own definition: "Tool name 'browser_navigate' and description 'Navigate to a URL' indicate it executes browser navigation actions."

## Use case

AI agents invoke browser_navigate to trigger actions in A11y Agent Skills. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call: builds kicked off, notifications sent, workflows started.

## Recommended policy (PolicyLayer)

Verdict: **Rate-limited**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches A11y Agent Skills:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "browser_navigate": {
      "limits": [
        {
          "counter": "browser_navigate_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}
```

## Other tools on A11y Agent Skills (23)

- `browser_click` — Execute — https://policylayer.com/tools/a11y-agent-skills/browser-click.md
- `browser_drag` — Execute — https://policylayer.com/tools/a11y-agent-skills/browser-drag.md
- `browser_fill_form` — Execute — https://policylayer.com/tools/a11y-agent-skills/browser-fill-form.md
- `browser_hover` — Execute — https://policylayer.com/tools/a11y-agent-skills/browser-hover.md
- `browser_press_key` — Execute — https://policylayer.com/tools/a11y-agent-skills/browser-press-key.md
- `browser_select_option` — Execute — https://policylayer.com/tools/a11y-agent-skills/browser-select-option.md
- `browser_set_checked` — Execute — https://policylayer.com/tools/a11y-agent-skills/browser-set-checked.md
- `browser_type` — Execute — https://policylayer.com/tools/a11y-agent-skills/browser-type.md
- `run_keyboard_journey` — Execute — https://policylayer.com/tools/a11y-agent-skills/run-keyboard-journey.md
- `scan_page` — Execute — https://policylayer.com/tools/a11y-agent-skills/scan-page.md
- `verify_repair` — Execute — https://policylayer.com/tools/a11y-agent-skills/verify-repair.md
- `browser_expect_list_visible` — Read — https://policylayer.com/tools/a11y-agent-skills/browser-expect-list-visible.md
- `browser_snapshot` — Read — https://policylayer.com/tools/a11y-agent-skills/browser-snapshot.md
- `get_rule_help` — Read — https://policylayer.com/tools/a11y-agent-skills/get-rule-help.md
- `scan_html` — Read — https://policylayer.com/tools/a11y-agent-skills/scan-html.md
- `browser_expect_title` — Write — https://policylayer.com/tools/a11y-agent-skills/browser-expect-title.md
- `browser_expect_url` — Write — https://policylayer.com/tools/a11y-agent-skills/browser-expect-url.md
- `browser_expect_value` — Write — https://policylayer.com/tools/a11y-agent-skills/browser-expect-value.md
- `browser_expect_visible` — Write — https://policylayer.com/tools/a11y-agent-skills/browser-expect-visible.md
- `browser_expect_visible_text` — Write — https://policylayer.com/tools/a11y-agent-skills/browser-expect-visible-text.md
- `compare_reports` — Write — https://policylayer.com/tools/a11y-agent-skills/compare-reports.md
- `refuse_to_perform` — Write — https://policylayer.com/tools/a11y-agent-skills/refuse-to-perform.md
- `report_result` — Write — https://policylayer.com/tools/a11y-agent-skills/report-result.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

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Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=a11y-agent-skills · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/a11y-agent-skills