Get list of transaction categories
AI agents call get_categories to retrieve information from CashChat 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 a static list of transaction categories without creating, modifying, or deleting any data. It has no side effects and presents minimal risk even if misused by an AI agent, as it only exposes category metadata rather than sensitive financial data or transaction details.
From the tool's definition Tool name 'get_categories' and description 'Get list of transaction categories' indicate a retrieval operation with no modification or execution of code.
Attacks that exploit this kind of access
Get list of transaction categories. It is categorised as a Read tool in the CashChat MCP Server MCP Server, which means it retrieves data without modifying state.
Register the CashChat MCP Server MCP server in PolicyLayer and add a rule for get_categories: 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 CashChat MCP Server. Nothing to install.
get_categories 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_categories 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_categories. 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_categories is provided by the CashChat MCP Server MCP server (pam-supastellar/cashchat-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.
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