search_wcag

SERVERA11y Assist SOURCEa11y-assist-mcp

Low RISK CLASS

Category Read

Parameters 21 required

Recommended Allowedsee the rule below

Registry record Grade D, identity unverified Pull the record →

This record as markdown: /tools/a11y-assist-mcp/search-wcag.md

WHAT IT DOES

What search_wcag does on A11y Assist

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

Parameter	Type	Required	Description
`level`	string	—	Conformance level (cumulative): AA keeps A + AA, AAA keeps all.
`query`	string	Yes	Term to match against SC id, title, and statement, e.g. "focus", "contrast", "name".

Parameters from the server's own tool schema.

RISK

Why search_wcag is rated Low

Even though search_wcag only reads data, uncontrolled read access leaks sensitive information and racks up API costs: an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs search_wcag safely

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

search_wcag Allowed

search_wcag 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": {
    "search_wcag": {}
  }
}

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

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

FAQ

Questions about search_wcag

What does the search_wcag tool do? +

Search WCAG Success Criteria by keyword, gated to a conformance level. Returns id / level / title. Use get_wcag_sc for the full SC with techniques and failures. (Most drill-down flows reach SCs via search_act; use this for direct keyword lookups.). It is categorised as a Read tool in the A11y Assist MCP Server, which means it retrieves data without modifying state.

What parameters does search_wcag accept? +

search_wcag accepts 2 parameters: level, query. Required: query. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on search_wcag? +

Register the A11y Assist MCP server in PolicyLayer and add a rule for search_wcag: 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 Assist. Nothing to install.

What risk level is search_wcag? +

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

Can I rate-limit search_wcag? +

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

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

search_wcag is provided by the A11y Assist MCP server (a11y-assist-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

More on A11y Assist, and thousands of servers like it.

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Roll out MCP under one policy →Data exfiltration →MCP token cost →