Get information about available accessibility rules for the specified engine. [${configNote}]
AI agents call get_rules to retrieve information from Accessibility Testing MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and returns information about accessibility testing rules supported by the specified engine (axe-core or IBM Equal Access). It is a read-only informational endpoint that has no capability to modify data, execute code, or cause other side effects. The blast radius of misuse is minimal—an agent could only retrieve rule definitions, which are typically public documentation.
From the tool's definition Tool name 'get_rules' and description 'Get information about available accessibility rules' indicate data retrieval with no side effects. The action is to retrieve metadata about rules, not modify, execute, or delete anything.
Attacks that exploit this kind of access
Get information about available accessibility rules for the specified engine. [${configNote}]. It is categorised as a Read tool in the Accessibility Testing MCP MCP Server, which means it retrieves data without modifying state.
Register the Accessibility Testing MCP server in PolicyLayer and add a rule for get_rules: 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 Accessibility Testing MCP. Nothing to install.
get_rules 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 get_rules 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 get_rules. 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.
get_rules is provided by the Accessibility Testing MCP server (joe-watkins/accessibility-testing-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
get_rules is one line of Accessibility Testing's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
Teams ship this data inside their own products. See what a licence covers →