AI agents call read to retrieve information from MCP Server for Apache OpenDAL™ without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves file content from storage services without creating, modifying, deleting, or executing operations. It is a pure read operation that queries existing data. The low severity reflects that unauthorized reads of files, while potentially concerning depending on data sensitivity, do not have the immediate blast radius of write, execute, or destructive operations.
From the tool's definition Tool name 'read' and description 'Read file content from OpenDAL service' explicitly indicate retrieval of data with no modification capability.
Documented attack patterns abuse exactly the kind of access read gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and MCP Server for Apache OpenDAL™, and nothing reaches the server without passing your rules. This is the rule we recommend for read:
{
"version": "1",
"default": "deny",
"tools": {
"read": {}
}
}read is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Read file content from OpenDAL service. It is categorised as a Read tool in the MCP Server for Apache OpenDAL™ MCP Server, which means it retrieves data without modifying state.
Register the MCP Server for Apache OpenDAL™ MCP server in PolicyLayer and add a rule for read: 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 Server for Apache OpenDAL™. Nothing to install.
read 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 read 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 read. 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.
read is provided by the MCP Server for Apache OpenDAL™ MCP server (xuanwo/mcp-server-opendal). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 3 MCP Server for Apache OpenDAL™ tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
3 MCP Server for Apache OpenDAL™ tools catalogued and risk-classified — across an index of 42,500+ MCP servers.