AI agents call proxima_cost_report to retrieve information from Proxima without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and displays session cost data, which is a read-only operation. It has no side effects, does not execute code, create/modify/delete data, or move money. The incomplete description ('Show this session\') is uninformative but context from the tool name suggests cost reporting, a typical read operation in API gateway systems.
From the tool's definition Tool name 'proxima_cost_report' and description 'Show this session' indicate a reporting/display function that retrieves cost or usage information without modifying state.
Attacks that exploit this kind of access
Show this session\. It is categorised as a Read tool in the Proxima MCP Server, which means it retrieves data without modifying state.
Register the Proxima MCP server in PolicyLayer and add a rule for proxima_cost_report: 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 Proxima. Nothing to install.
proxima_cost_report 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 proxima_cost_report 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 proxima_cost_report. 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.
proxima_cost_report is provided by the Proxima MCP server (zen4-bit/proxima). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
proxima_cost_report is one line of Proxima'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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