AI agents call quelle_lesen to retrieve information from Lokyy without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and reads source data from the knowledge base. The operations described (decryption at runtime, reporting deletion status) are all read-only operations with no side effects. No data is created, modified, or deleted by calling this tool. It represents a straightforward data retrieval operation.
From the tool's definition Tool name 'quelle_lesen' means 'read source' in German. Description states 'Liest eine RAW-Quelle' (reads a raw source).
Attacks that exploit this kind of access
Liest eine RAW-Quelle. Blob+Stub-Quellen werden zur Laufzeit entschlüsselt; Tombstones werden als gelöscht gemeldet. It is categorised as a Read tool in the Lokyy MCP Server, which means it retrieves data without modifying state.
Register the Lokyy MCP server in PolicyLayer and add a rule for quelle_lesen: 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 Lokyy. Nothing to install.
quelle_lesen 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 quelle_lesen 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 quelle_lesen. 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.
quelle_lesen is provided by the Lokyy MCP server (oliverhees/lokyy-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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