List documents with pagination (limit, offset).
AI agents call lucene_list to retrieve information from Mcp Lucene without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and returns documents with pagination parameters. It does not create, modify, delete, or execute any operations—it purely retrieves data. The presence of sibling destructive tools (lucene_delete) and write tools (lucene_upsert) on the same server does not change this tool's classification. Misuse would only expose existing data, making it a Read-category risk with low severity.
From the tool's definition Tool name 'lucene_list' and description 'List documents with pagination (limit, offset)' indicate a retrieval operation with no side effects.
Attacks that exploit this kind of access
List documents with pagination (limit, offset). It is categorised as a Read tool in the Mcp Lucene MCP Server, which means it retrieves data without modifying state.
Register the Mcp Lucene MCP server in PolicyLayer and add a rule for lucene_list: 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 Mcp Lucene. Nothing to install.
lucene_list 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 lucene_list 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 lucene_list. 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.
lucene_list is provided by the Mcp Lucene MCP server (vivekkumarneu/mcp-lucene-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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