List available Nuclei templates by tag or severity.
AI agents call list_templates to retrieve information from Security Scanner MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a read-only operation that lists metadata about available security scanning templates. It has no side effects, does not execute scans, does not modify data, and does not trigger external operations. The blast radius of misuse is minimal—an attacker could only discover what templates are available, which is informational. This is clearly a Read category tool.
From the tool's definition Tool name 'list_templates' and description 'List available Nuclei templates by tag or severity' indicate a query operation that retrieves and displays information without modifying or executing anything.
Attacks that exploit this kind of access
List available Nuclei templates by tag or severity. It is categorised as a Read tool in the Security Scanner MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Security Scanner MCP Server MCP server in PolicyLayer and add a rule for list_templates: 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 Security Scanner MCP Server. Nothing to install.
list_templates 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 list_templates 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 list_templates. 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.
list_templates is provided by the Security Scanner MCP Server MCP server (marc-shade/security-scanner-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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