browser_expect_list_visible

Expect list is visible on the page, ensures items are present in the element in the exact order

SERVERA11y Agent Skills SOURCEsmukh/a11y-agent-skills

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/a11y-agent-skills/browser-expect-list-visible.md

WHAT IT DOES

What browser_expect_list_visible does on A11y Agent Skills

AI agents call browser_expect_list_visible to retrieve information from A11y Agent Skills without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why browser_expect_list_visible is rated Low

Assertion-only tool that verifies page state without modifying data or executing actions.

From the tool's definition Expect list visible, ensures items present, no side effects.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs browser_expect_list_visible safely

PolicyLayer is an MCP gateway: it sits between your AI agents and A11y Agent Skills, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For browser_expect_list_visible, this is the rule to start with:

browser_expect_list_visible Allowed

browser_expect_list_visible is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "browser_expect_list_visible": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect A11y Agent Skills, apply this rule, and every browser_expect_list_visible call is checked against it from then on.

FAQ

Questions about browser_expect_list_visible

What does the browser_expect_list_visible tool do? +

Expect list is visible on the page, ensures items are present in the element in the exact order. It is categorised as a Read tool in the A11y Agent Skills MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on browser_expect_list_visible? +

Register the A11y Agent Skills MCP server in PolicyLayer and add a rule for browser_expect_list_visible: 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 A11y Agent Skills. Nothing to install.

What risk level is browser_expect_list_visible? +

browser_expect_list_visible is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit browser_expect_list_visible? +

Yes. Add a rate_limit block to the browser_expect_list_visible 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.

How do I block browser_expect_list_visible completely? +

Set action: deny in the PolicyLayer policy for browser_expect_list_visible. 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 browser_expect_list_visible? +

browser_expect_list_visible is provided by the A11y Agent Skills MCP server (smukh/a11y-agent-skills). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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