AI agents call list_patterns to retrieve information from Packmate without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and enumerates existing patterns from the Packmate system without creating, modifying, or deleting data. It is a standard read operation that provides visibility into current pattern configurations.
From the tool's definition Tool name 'list_patterns' and description 'List all patterns' indicate a retrieval operation with no side effects.
Attacks that exploit this kind of access
List all patterns (highlight + ignore). It is categorised as a Read tool in the Packmate MCP Server, which means it retrieves data without modifying state.
Register the Packmate MCP server in PolicyLayer and add a rule for list_patterns: 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 Packmate. Nothing to install.
list_patterns 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_patterns 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_patterns. 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_patterns is provided by the Packmate MCP server (umbra2728/packmate-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
list_patterns is one line of Packmate's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
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