Navigate to a URL in the browser. Only use this tool with URLs you're confident will work and be up to date. Otherwise, use https://google.com as the starting point. Supports localhost URLs when using cloud browser - automatically tunnels via ngrok.
Risk signalsAccepts URL/endpoint input (url)
Part of the Browser Automation server.
Free to start. No card required.
AI agents invoke stagehand_navigate to trigger processes or run actions in Browser Automation. Execute operations can have side effects beyond the immediate call -- triggering builds, sending notifications, or starting workflows. Rate limits and argument validation are essential to prevent runaway execution.
stagehand_navigate can trigger processes with real-world consequences. An uncontrolled agent might start dozens of builds, send mass notifications, or kick off expensive compute jobs. PolicyLayer enforces rate limits and validates arguments to keep execution within safe bounds.
Execute tools trigger processes. Rate-limit and validate arguments to prevent unintended side effects.
{
"version": "1",
"default": "deny",
"tools": {
"stagehand_navigate": {
"limits": [
{
"counter": "stagehand_navigate_rate",
"window": "minute",
"max": 10,
"scope": "grant"
}
]
}
}
}See the full Browser Automation policy for all 13 tools.
These attack patterns abuse exactly the kind of access stagehand_navigate gives an agent. Each links to the full case and the policy that stops it:
Other execute tools across the catalogue. The same approach applies to each: rate-limit and validate the arguments.
Navigate to a URL in the browser. Only use this tool with URLs you're confident will work and be up to date. Otherwise, use https://google.com as the starting point. Supports localhost URLs when using cloud browser - automatically tunnels via ngrok.. It is categorised as a Execute tool in the Browser Automation MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the Browser Automation MCP server in PolicyLayer and add a rule for stagehand_navigate: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Browser Automation. Nothing to install.
stagehand_navigate is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.
Yes. Add a rate_limit block to the stagehand_navigate rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for stagehand_navigate. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
stagehand_navigate is provided by the Browser Automation MCP server (@popoverai/browser-automation). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 13 Browser Automation tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
4,600+ MCP servers and 31,000+ tools scanned and risk-classified.