search_court_opinions

THE RISK

Low Risk

Why search_court_opinions needs a policy

This tool searches and retrieves publicly available court opinions—a read-only operation with no side effects. It queries an existing data source (CourtListener) without creating, modifying, or deleting records. The low severity reflects that misuse would only result in unwanted information retrieval, not operational or financial harm.

From the tool's definition Tool name 'search_court_opinions' and description 'Search for court opinions and decisions from CourtListener' indicate a query/retrieval operation against public legal data. No modifications, deletions, or external actions are performed.

Documented attack patterns abuse exactly the kind of access search_court_opinions gives an agent:

POLICY

How to control search_court_opinions

PolicyLayer is an MCP gateway — it sits between your AI agents and Us Legal, and nothing reaches the server without passing your rules. This is the rule we recommend for search_court_opinions:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "search_court_opinions": {}
  }
}

search_court_opinions is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register Us Legal — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CAP THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More Us Legal tools

Read get_bill_actions Chronological actions (newest first) for a specific bill from Congress.gov. Identify via b Read get_bill_details Fetch live bill metadata from the Congress.gov API (sponsors, latest action, policy area, Read get_bill_text List available text versions (Introduced, Engrossed, Enrolled, etc.) with PDF/HTML/XML dow Read get_clarity_act_info Curated reference for the Digital Asset Market CLARITY Act (H.R.3633, 119th Cong.). Return Read get_congress_committees Get list of Congressional committees Read get_curated_act Return a curated reference record for a major US digital-asset act by slug. Read get_genius_act_info Curated reference for the GENIUS Act (Guiding and Establishing National Innovation for U.S Read get_public_law_text Fetch a Public Law package from GovInfo (summary + optional truncated plain text). Example

All 18 Us Legal tools →

Read tools on other servers

M-Team MCP Server get_torrent_detail YouTube MCP Server search_channel Android Forensics ADB MCP Server parse_browser_history 0xarchive web3_challenge

Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about search_court_opinions

What does the search_court_opinions tool do? +

Search for court opinions and decisions from CourtListener (federal and state courts). It is categorised as a Read tool in the Us Legal MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on search_court_opinions? +

Register the Us Legal MCP server in PolicyLayer and add a rule for search_court_opinions: 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 Us Legal. Nothing to install.

What risk level is search_court_opinions? +

search_court_opinions is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit search_court_opinions? +

Yes. Add a rate_limit block to the search_court_opinions 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.

How do I block search_court_opinions completely? +

Set action: deny in the PolicyLayer policy for search_court_opinions. 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.

What MCP server provides search_court_opinions? +

search_court_opinions is provided by the Us Legal MCP server (jamesanz/us-legal-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Us Legal tool call.

Start from Us Legal, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →