AI agents use format_xml to create or update resources in IT Tools MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your IT Tools MCP Server environment.
Formatting XML is a reversible write operation—it restructures data for readability without deleting or executing code. The output is a reformatted version of the input that can be undone by re-parsing. This is clearly not Read (it modifies), Execute (no code execution), Destructive (fully reversible), or Financial. Write is the appropriate category.
From the tool's definition Tool name 'format_xml' and description 'Format and prettify XML' indicate the tool modifies XML data by reformatting it. Formatting operations create modified versions of input data (reversible transformation).
Documented attack patterns abuse exactly the kind of access format_xml gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and IT Tools MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for format_xml:
{
"version": "1",
"default": "deny",
"tools": {
"format_xml": {
"limits": [
{
"counter": "format_xml_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}format_xml stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
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Format and prettify XML. It is categorised as a Write tool in the IT Tools MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the IT Tools MCP Server MCP server in PolicyLayer and add a rule for format_xml: 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 IT Tools MCP Server. Nothing to install.
format_xml is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the format_xml 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 format_xml. 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.
format_xml is provided by the IT Tools MCP Server MCP server (wrenchpilot/it-tools-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from IT Tools MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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119 IT Tools MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.