List all charges with optional filtering
AI agents call list_charges to retrieve information from Omise MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and retrieves charge data without creating, modifying, or deleting anything. The 'list' verb and filtering capability confirm it performs a read-only operation. While it accesses payment data (which could be sensitive), the tool itself has no side effects and poses minimal risk when invoked correctly.
From the tool's definition Tool name is 'list_charges' and description states 'List all charges with optional filtering' — a retrieval operation with no modification or deletion capability.
Attacks that exploit this kind of access
List all charges with optional filtering. It is categorised as a Read tool in the Omise MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Omise MCP Server MCP server in PolicyLayer and add a rule for list_charges: 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 Omise MCP Server. Nothing to install.
list_charges 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_charges 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_charges. 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_charges is provided by the Omise MCP Server MCP server (jun-omise/omise-mcp-alpha). 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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