AI agents call models.list to retrieve information from Or Info without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool retrieves and queries model data (names, IDs, pricing) from OpenRouter. It performs read-only operations (list, filter, sort) without creating, modifying, executing, or deleting data. The worst-case misuse would be information gathering, which has minimal security impact.
From the tool's definition Tool name 'models.list' and description states it 'List[s] OpenRouter models with pricing' and allows filtering, sorting, and limiting results. These are pure query operations with no side effects.
Attacks that exploit this kind of access
List OpenRouter models with pricing. Optionally filter by name/id, sort, and limit results. It is categorised as a Read tool in the Or Info MCP Server, which means it retrieves data without modifying state.
Register the Or Info MCP server in PolicyLayer and add a rule for models.list: 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 Or Info. Nothing to install.
models.list 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 models.list 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 models.list. 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.
models.list is provided by the Or Info MCP server (jmtrs/or-info). 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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