AI agents use customize_template to create or update resources in Mcp Rtfm — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Mcp Rtfm environment.
This tool creates new templates or modifies existing ones, making it a reversible data modification action (Write category). Severity is medium because misuse could corrupt documentation templates or inject malicious template content that affects how documentation is generated, but the blast radius is limited to template configuration rather than live data or external systems.
From the tool's definition Tool description states 'Create or update a custom documentation template'—the verbs 'create' and 'update' are explicit write operations that modify template data.
Documented attack patterns abuse exactly the kind of access customize_template gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Mcp Rtfm, and nothing reaches the server without passing your rules. This is the rule we recommend for customize_template:
{
"version": "1",
"default": "deny",
"tools": {
"customize_template": {
"limits": [
{
"counter": "customize_template_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}customize_template 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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Create or update a custom documentation template. It is categorised as a Write tool in the Mcp Rtfm MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Mcp Rtfm MCP server in PolicyLayer and add a rule for customize_template: 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 Mcp Rtfm. Nothing to install.
customize_template 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 customize_template 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 customize_template. 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.
customize_template is provided by the Mcp Rtfm MCP server (ryanjoachim/mcp-rtfm). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 11 Mcp Rtfm tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
11 Mcp Rtfm tools catalogued and risk-classified — across an index of 42,500+ MCP servers.