select_page

Switch between open browser pages

Changes active debugging context

Part of the Chrome DevTools MCP server. Enforce policies on this tool with Intercept, the open-source MCP proxy.

@ChromeDevTools/chrome-devtools-mcp Write

// WHEN AI AGENTS USE THIS TOOL

AI agents use select_page to create or modify resources in Chrome DevTools. Write operations carry medium risk because an autonomous agent could trigger bulk unintended modifications. Rate limits prevent a single agent session from making hundreds of changes in rapid succession. Argument validation ensures the agent passes expected values.

// WHY ENFORCE A POLICY ON SELECT_PAGE

Without a policy, an AI agent could call select_page repeatedly, creating or modifying resources faster than any human could review. Intercept's rate limiting ensures write operations happen at a controlled pace, and argument validation catches malformed or unexpected inputs before they reach Chrome DevTools.

// RECOMMENDED POLICY

Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.

chrome-devtools.yaml

tools:
  select_page:
    rules:
      - action: allow
        rate_limit:
          max: 30
          window: 60

See the full Chrome DevTools policy for all 29 tools.

// DETAILS

Tool Name select_page

Category Write

MCP Server Chrome DevTools MCP Server

Risk Level Medium

// MORE CHROME DEVTOOLS TOOLS

Destructive close_page Execute click Execute drag Execute emulate Execute evaluate_script Execute fill Execute fill_form Execute handle_dialog

View all 29 tools →

// WHAT CAN GO WRONG

Agents calling write-class tools like select_page have been implicated in these attack patterns. Read the full case and prevention policy for each:

Browse the full MCP Attack Database →

// OTHER WRITE TOOLS ACROSS MCP SERVERS

Other tools in the Write risk category across the catalogue. The same policy patterns (rate-limit, validate) apply to each.

AbraFlexi contact_create AbraFlexi contact_update AbraFlexi evidence_create AbraFlexi evidence_update AbraFlexi invoice_issued_update AbraFlexi invoice_received_create

// RELATED READING

// FAQ

What does the select_page tool do? +

Switch between open browser pages. It is categorised as a Write tool in the Chrome DevTools MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on select_page? +

Add a rule in your Intercept YAML policy under the tools section for select_page. You can allow, deny, rate-limit, or validate arguments. Then run Intercept as a proxy in front of the Chrome DevTools MCP server.

What risk level is select_page? +

select_page is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit select_page? +

Yes. Add a rate_limit block to the select_page rule in your Intercept 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.

How do I block select_page completely? +

Set action: deny in the Intercept policy for select_page. 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.

What MCP server provides select_page? +

select_page is provided by the Chrome DevTools MCP server (@ChromeDevTools/chrome-devtools-mcp). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.

select_page

Let agents act without letting them run wild.