Scan a skill/MCP server by URL for security issues. Returns risk level, findings, and verdict.
AI agents call scan_url to retrieve information from SkillAudit without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
url | string | — | URL of the skill file or MCP server to scan |
Parameters from the server's own tool schema.
This is a Read category tool because it performs analysis and retrieval of security information about a URL without side effects. While it may cost money via x402 micropayments, the tool itself does not move money or commit financial obligations—payment is a separate concern external to the tool's core operation.
From the tool's definition The tool 'scan_url' retrieves security analysis results for a given URL and 'Returns risk level, findings, and verdict.' The action is a query/scan operation that inspects external resources without modifying them.
Risk signalsAccepts URL/endpoint input (url)
Documented attack patterns abuse exactly the kind of access scan_url gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and SkillAudit, and nothing reaches the server without passing your rules. This is the rule we recommend for scan_url:
{
"version": "1",
"default": "deny",
"tools": {
"scan_url": {}
}
}scan_url is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
Free to start. No card required.
Scan a skill/MCP server by URL for security issues. Returns risk level, findings, and verdict. It is categorised as a Read tool in the SkillAudit MCP Server, which means it retrieves data without modifying state.
scan_url accepts 1 parameter: url. The full parameter table on this page comes from the server's own tool schema.
Register the SkillAudit MCP server in PolicyLayer and add a rule for scan_url: 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 SkillAudit. Nothing to install.
scan_url 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 scan_url 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 scan_url. 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.
scan_url is provided by the SkillAudit MCP server (megamind-0x/skillaudit). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from SkillAudit, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
4 SkillAudit tools catalogued and risk-classified — across an index of 43,000+ MCP servers.