List sequencer batches. Batches group multiple transactions for efficient on-chain anchoring via ZK-rollup.
AI agents call dual_list_batches to retrieve information from DUAL 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 information about sequencer batches without creating, modifying, deleting, or executing any operations. It is a passive query operation that returns data about blockchain batch state. The low severity reflects minimal blast radius—an agent misusing this tool could only gain visibility into batch information, with no ability to alter state or trigger transactions.
From the tool's definition Tool name 'dual_list_batches' and description 'List sequencer batches' indicate a retrieval operation with no side effects. The verb 'list' is explicitly a read operation that queries existing batch data.
Attacks that exploit this kind of access
List sequencer batches. Batches group multiple transactions for efficient on-chain anchoring via ZK-rollup. It is categorised as a Read tool in the DUAL MCP Server MCP Server, which means it retrieves data without modifying state.
Register the DUAL MCP Server MCP server in PolicyLayer and add a rule for dual_list_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 DUAL MCP Server. Nothing to install.
dual_list_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 dual_list_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 dual_list_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.
dual_list_batches is provided by the DUAL MCP Server MCP server (ro-ro-b/dual-mcp-server). 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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