Compare data transfer/egress costs. OCI offers 10TB/month free (100x more than others)!
AI agents call compare_egress to retrieve information from Cloud Cost MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and compares cost data across cloud providers without modifying any systems, executing code, or moving money. It is purely informational and read-only in nature, making it a Read category risk with low severity.
From the tool's definition Tool name 'compare_egress' and description 'Compare data transfer/egress costs' indicate data retrieval and comparison only. No modification, execution, deletion, or financial transaction occurs—only querying and presenting pricing information.
Attacks that exploit this kind of access
Compare data transfer/egress costs. OCI offers 10TB/month free (100x more than others)!. It is categorised as a Read tool in the Cloud Cost MCP MCP Server, which means it retrieves data without modifying state.
Register the Cloud Cost MCP server in PolicyLayer and add a rule for compare_egress: 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 Cloud Cost MCP. Nothing to install.
compare_egress 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 compare_egress 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 compare_egress. 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.
compare_egress is provided by the Cloud Cost MCP server (jasonwilbur/cloud-cost-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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