List all open models with IDs and names.
AI agents call list_models to retrieve information from ChimeraX 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 simple query operation that retrieves information about existing models without side effects. It enables the user to see what structures are currently loaded in ChimeraX but does not modify, execute, or delete anything. This is a classic Read operation with minimal risk if misused by an AI agent.
From the tool's definition The tool 'list_models' retrieves and queries data about open models with IDs and names. The description explicitly states it 'List[s] all open models' with no mention of modification, deletion, execution, or state changes.
Attacks that exploit this kind of access
List all open models with IDs and names. It is categorised as a Read tool in the ChimeraX MCP Server MCP Server, which means it retrieves data without modifying state.
Register the ChimeraX MCP Server MCP server in PolicyLayer and add a rule for list_models: 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 ChimeraX MCP Server. Nothing to install.
list_models 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_models 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_models. 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_models is provided by the ChimeraX MCP Server MCP server (mahynotch/chimerax-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.
Teams ship this data inside their own products. See what a licence covers →