AI agents call l6e_list_billing_batches to retrieve information from L6e without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool queries and retrieves billing batch metadata for auditing purposes. It has no side effects—it does not create, modify, delete, execute code, or move money. The description explicitly frames it as an informational tool ('audit or identify') that precedes potential deletion actions but does not itself perform them. This is a straightforward Read operation.
From the tool's definition Tool name includes 'list' and description states 'List all active billing import batches. Returns batch IDs, source, row count, cost, and import date.' This is a retrieval operation with no modification of data.
Attacks that exploit this kind of access
List all active billing import batches. Returns batch IDs, source, row count, cost, and import date. Use to audit or identify stale imports before deletion. It is categorised as a Read tool in the L6e MCP Server, which means it retrieves data without modifying state.
Register the L6e MCP server in PolicyLayer and add a rule for l6e_list_billing_batches: 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 L6e. Nothing to install.
l6e_list_billing_batches 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 l6e_list_billing_batches 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 l6e_list_billing_batches. 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.
l6e_list_billing_batches is provided by the L6e MCP server (l6e-ai/l6e-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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