get_catalog_values
AI agents call get_catalog_values to retrieve information from MaStR MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The 'get_' prefix combined with 'catalog_values' indicates this retrieves reference/lookup data from the MaStR catalog without modifying it. No side effects expected. Confidence reduced from high to 0.7 due to empty description, but context from sibling tools strongly suggests this is a simple catalog data retrieval operation.
From the tool's definition Tool name 'get_catalog_values' uses the 'get' verb which indicates retrieval. Tool description is empty, but sibling tools on the server (get_actor, get_unit, search_actors_public, get_location, etc.) are all Read operations querying the MaStR public energy…
Attacks that exploit this kind of access
get_catalog_values. It is categorised as a Read tool in the MaStR MCP Server MCP Server, which means it retrieves data without modifying state.
Register the MaStR MCP Server MCP server in PolicyLayer and add a rule for get_catalog_values: 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 MaStR MCP Server. Nothing to install.
get_catalog_values 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 get_catalog_values 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 get_catalog_values. 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.
get_catalog_values is provided by the MaStR MCP Server MCP server (UliRCS/mastr-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
get_catalog_values is one line of MaStR MCP Server'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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