// MCP TOOL REFERENCE

wait_for

Wait for the specified text to appear on the selected page.

Part of the Browserous - Instant Browser for Your Agent MCP server. Enforce policies on this tool with Intercept, the open-source MCP proxy.

browserous/browserous Execute Risk 3/5

// WHEN AI AGENTS USE THIS TOOL

AI agents invoke wait_for to trigger processes or run actions in Browserous - Instant Browser for Your Agent. 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.

// WHY ENFORCE A POLICY ON WAIT_FOR

wait_for can trigger processes with real-world consequences. An uncontrolled agent might start dozens of builds, send mass notifications, or kick off expensive compute jobs. Intercept enforces rate limits and validates arguments to keep execution within safe bounds.

// RECOMMENDED POLICY

Execute tools trigger processes. Rate-limit and validate arguments to prevent unintended side effects.

browserous-browserous.yaml

tools:
  wait_for:
    rules:
      - action: allow
        rate_limit:
          max: 10
          window: 60
        validate:
          required_args: true

See the full Browserous - Instant Browser for Your Agent policy for all 26 tools.

// DETAILS

Tool Name wait_for

Category Execute

MCP Server Browserous - Instant Browser for Your Agent MCP Server

Risk Level High

// MORE BROWSEROUS - INSTANT BROWSER FOR YOUR AGENT TOOLS

Execute emulate Execute navigate_page Execute new_page Execute performance_analyze_insight Execute performance_start_trace Execute performance_stop_trace Write click Write close_page

View all 26 tools →

// WHAT CAN GO WRONG

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

Browse the full MCP Attack Database →

// OTHER EXECUTE TOOLS ACROSS MCP SERVERS

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

Agent Passport System — Cryptographic Identity for AI Agents commerce_preflight Agent Passport System — Cryptographic Identity for AI Agents execute_with_context Agent Passport System — Cryptographic Identity for AI Agents gateway_execute_approval Agent Passport System — Cryptographic Identity for AI Agents governance_360 Agent Passport System — Cryptographic Identity for AI Agents parse_governance_block_html AgentClear — API Marketplace for AI Agents call_service

// IN CONTEXT OF HIGH RISK

wait_for is one of the high-risk operations in Browserous - Instant Browser for Your Agent. For the full severity-focused view — only the high-risk tools with their recommended policies — see the breakdown for this server, or browse all high-risk tools across every MCP server.

// RELATED READING

// FAQ

What does the wait_for tool do? +

Wait for the specified text to appear on the selected page.. It is categorised as a Execute tool in the Browserous - Instant Browser for Your Agent MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on wait_for? +

Add a rule in your Intercept YAML policy under the tools section for wait_for. You can allow, deny, rate-limit, or validate arguments. Then run Intercept as a proxy in front of the Browserous - Instant Browser for Your Agent MCP server.

What risk level is wait_for? +

wait_for is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit wait_for? +

Yes. Add a rate_limit block to the wait_for 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 wait_for completely? +

Set action: deny in the Intercept policy for wait_for. 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 wait_for? +

wait_for is provided by the Browserous - Instant Browser for Your Agent MCP server (browserous/browserous). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.

wait_for

Enforce policies on Browserous - Instant Browser for Your Agent