Get regex patterns associated with an ASN for PTR record parsing
AI agents call thealeph_asn_regex to retrieve information from The Aleph MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves regex patterns used for parsing PTR records associated with an Autonomous System Number. It performs a lookup/fetch operation with no side effects, data modification, code execution, or destructive capability. The patterns are static configuration data being read from The Aleph API. Classification as Read is appropriate for informational queries against a network intelligence database.
From the tool's definition Tool description states 'Get regex patterns associated with an ASN' - a retrieval operation with no modification or execution capability.
Attacks that exploit this kind of access
Get regex patterns associated with an ASN for PTR record parsing. It is categorised as a Read tool in the The Aleph MCP MCP Server, which means it retrieves data without modifying state.
Register the The Aleph MCP server in PolicyLayer and add a rule for thealeph_asn_regex: 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 The Aleph MCP. Nothing to install.
thealeph_asn_regex 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 thealeph_asn_regex 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 thealeph_asn_regex. 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.
thealeph_asn_regex is provided by the The Aleph MCP server (nu-aqualab/thealeph-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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