Get parameter details for a Panel component.
AI agents call params to retrieve information from HoloViz MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves or queries information (parameter details) without modifying, executing code, or triggering side effects. It fits the Read category: no data is created, modified, deleted, or executed. The severity is low because retrieving parameter metadata poses minimal risk even if misused by an agent.
From the tool's definition Tool name is 'params' and description states 'Get parameter details for a Panel component' — purely a retrieval operation that queries metadata about component parameters.
Attacks that exploit this kind of access
Get parameter details for a Panel component. It is categorised as a Read tool in the HoloViz MCP Server MCP Server, which means it retrieves data without modifying state.
Register the HoloViz MCP Server MCP server in PolicyLayer and add a rule for params: 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 HoloViz MCP Server. Nothing to install.
params 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 params 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 params. 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.
params is provided by the HoloViz MCP Server MCP server (sumayabee/holoviz-mcp-server). 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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