Read a data file from a plugin's server-side storage.
AI agents call plugin_read_data to retrieve information from Overlord 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 data from plugin storage without modifying, deleting, or executing operations. It is purely a read operation. Severity is medium rather than low because it accesses plugin server-side storage, which could contain sensitive configuration, credentials, or operational data depending on what plugins store. Confidence is high because the description is explicit and clear.
From the tool's definition Tool name contains 'read' and description states 'Read a data file from a plugin's server-side storage' — a retrieval operation with no modification.
Attacks that exploit this kind of access
Read a data file from a plugin's server-side storage. It is categorised as a Read tool in the Overlord MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Overlord MCP Server MCP server in PolicyLayer and add a rule for plugin_read_data: 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 Overlord MCP Server. Nothing to install.
plugin_read_data 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 plugin_read_data 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 plugin_read_data. 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.
plugin_read_data is provided by the Overlord MCP Server MCP server (skeeminator/overlord-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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