courtlistener-search
Search CourtListener across opinions (
This record as markdown: /tools/io-github-derekslinz-meta-data-mcp/courtlistener-search.md
What courtlistener-search does on Meta Data Mcp
AI agents call courtlistener-search to retrieve information from Meta Data Mcp without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why courtlistener-search is rated Low
This tool queries an open data API (CourtListener, a public legal database) to retrieve court opinions. Search operations are inherently read-only—they retrieve information without creating, modifying, deleting, or executing any code. The blast radius of misuse is minimal: an agent could retrieve excessive data or spam the API, but cannot corrupt records, execute commands, or cause financial harm.
From the tool's definition Tool name 'courtlistener-search' and description 'Search CourtListener across opinions' indicate a query/search operation against public court data. The verb 'search' is a read-only operation that retrieves data without modification or side effects.
Attacks that exploit this kind of access
The rule that runs courtlistener-search safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Meta Data Mcp, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For courtlistener-search, this is the rule to start with:
courtlistener-search is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Meta Data Mcp, apply this rule, and every courtlistener-search call is checked against it from then on.
Questions about courtlistener-search
Search CourtListener across opinions (. It is categorised as a Read tool in the Meta Data Mcp MCP Server, which means it retrieves data without modifying state.
Register the Meta Data MCP server in PolicyLayer and add a rule for courtlistener-search: 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 Meta Data Mcp. Nothing to install.
courtlistener-search 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 courtlistener-search 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 courtlistener-search. 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.
courtlistener-search is provided by the Meta Data MCP server (pypi:meta-data-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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