Get accessibility features and ARIA attributes for a component
AI agents call check_accessibility to retrieve information from its-just-ui MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and queries accessibility information about components—specifically ARIA attributes and accessibility features. It performs no state changes, does not execute external operations, and does not modify or delete data. It is purely informational, making it a Read category tool with low severity since misuse would only expose existing metadata without causing harm.
From the tool's definition Tool name 'check_accessibility' and description 'Get accessibility features and ARIA attributes for a component' indicate data retrieval with no modification or side effects.
Attacks that exploit this kind of access
Get accessibility features and ARIA attributes for a component. It is categorised as a Read tool in the its-just-ui MCP Server MCP Server, which means it retrieves data without modifying state.
Register the its-just-ui MCP Server MCP server in PolicyLayer and add a rule for check_accessibility: 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 its-just-ui MCP Server. Nothing to install.
check_accessibility is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the check_accessibility 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 check_accessibility. 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.
check_accessibility is provided by the its-just-ui MCP Server MCP server (its-just-ui/its-just-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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