search_federal_cases

THE RISK

Low Risk

Why search_federal_cases needs a policy

This tool retrieves court case information with no ability to modify, delete, or execute external operations. Even though the tool description is empty, the name and server context strongly indicate a search/query function that returns legal data without side effects. Confidence is high but not maximum due to missing tool-specific description.

From the tool's definition Tool name 'search_federal_cases' and server context indicate querying/searching court data. Server description states it 'enables AI assistants to search over 4 million US court opinions' and access 'PACER federal filings through natural language.' Sibling…

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

POLICY

How to control search_federal_cases

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

policy.json

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

search_federal_cases 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 LegalMCP — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

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EXPLORE

Related tools and policies

More LegalMCP tools

Read parse_legal_citations Parse legal citations from text and identify the cases referenced. Read find_cited_cases Find cases that a specific opinion cites (what cases did this ruling rely on?). Read find_citing_cases Find cases that cite a specific opinion (who cited this case later?). Read get_calendar Get calendar entries (hearings, deadlines, meetings) from Clio. Read get_case_details Get full details of a specific court opinion by its ID. Read get_case_record Get the full docket (case record) for a case. Read get_court_filings get_court_filings Read get_federal_case Get details of a specific federal case from PACER.

All 18 LegalMCP tools →

Read tools on other servers

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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_federal_cases

What does the search_federal_cases tool do? +

search_federal_cases. It is categorised as a Read tool in the LegalMCP MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on search_federal_cases? +

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

What risk level is search_federal_cases? +

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

Can I rate-limit search_federal_cases? +

Yes. Add a rate_limit block to the search_federal_cases 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_federal_cases completely? +

Set action: deny in the PolicyLayer policy for search_federal_cases. 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_federal_cases? +

search_federal_cases is provided by the Legal MCP server (mahender22/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 LegalMCP tool call.

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

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