List all data sources used by this server, with provenance metadata.
AI agents call list_sources to retrieve information from German Law 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 and lists informational metadata about data sources. It has no side effects, does not execute code or commands, does not modify data, and does not involve financial transactions. It is a straightforward informational read operation typical of a legal research server's introspection capabilities.
From the tool's definition Tool name 'list_sources' and description 'List all data sources used by this server, with provenance metadata' indicate a retrieval/query operation that returns metadata about available sources without modifying, executing, or deleting anything.
Risk signalsBulk/mass operation — affects multiple targets
Attacks that exploit this kind of access
List all data sources used by this server, with provenance metadata. It is categorised as a Read tool in the German Law MCP Server MCP Server, which means it retrieves data without modifying state.
Register the German Law MCP Server MCP server in PolicyLayer and add a rule for list_sources: 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 German Law MCP Server. Nothing to install.
list_sources 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 list_sources 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 list_sources. 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.
list_sources is provided by the German Law MCP Server MCP server (nenna-ai-gmbh/german-law-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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