# courtlistener_search_cases_keyword

A read tool on the Courtlistener MCP server.

Agent View of the PolicyLayer registry record for `courtlistener_search_cases_keyword`. HTML page: https://policylayer.com/tools/defendthedisabled-courtlistener-mcp/courtlistener-search-cases-keyword

## Facts

- Tool: `courtlistener_search_cases_keyword`
- Server: Courtlistener (`defendthedisabled/courtlistener-mcp`) — https://policylayer.com/tools/defendthedisabled-courtlistener-mcp.md
- Homepage: https://github.com/DefendTheDisabled/courtlistener-mcp
- Risk category: Read (Low risk)
- Registry record: grade A, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Allowed

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "courtlistener_search_cases_keyword",
    "arguments": {}
  }
}
```

## Why courtlistener_search_cases_keyword is rated Low

This tool performs keyword-based search across CourtListener's legal case database. Like its sibling search and get tools, it retrieves and queries data without modifying, deleting, or executing arbitrary code. The empty description is compensated by the clear naming convention and consistent pattern of read-only tools on the server.

From the tool's own definition: "Tool name 'courtlistener_search_cases_keyword' indicates a search operation. All sibling tools on this server (courtlistener_get_case, courtlistener_search_cases_hybrid, courtlistener_search_cases_semantic, courtlistener_list_courts, etc.) are read-only query…"

## Use case

AI agents call courtlistener_search_cases_keyword to retrieve information from Courtlistener without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

## Recommended policy (PolicyLayer)

Verdict: **Allowed**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Courtlistener:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "courtlistener_search_cases_keyword": {}
  }
}
```

## Other tools on Courtlistener (11)

- `courtlistener_get_case` — Read — https://policylayer.com/tools/defendthedisabled-courtlistener-mcp/courtlistener-get-case.md
- `courtlistener_get_citing_cases` — Read — https://policylayer.com/tools/defendthedisabled-courtlistener-mcp/courtlistener-get-citing-cases.md
- `courtlistener_get_court_info` — Read — https://policylayer.com/tools/defendthedisabled-courtlistener-mcp/courtlistener-get-court-info.md
- `courtlistener_get_docket` — Read — https://policylayer.com/tools/defendthedisabled-courtlistener-mcp/courtlistener-get-docket.md
- `courtlistener_get_opinion` — Read — https://policylayer.com/tools/defendthedisabled-courtlistener-mcp/courtlistener-get-opinion.md
- `courtlistener_list_courts` — Read — https://policylayer.com/tools/defendthedisabled-courtlistener-mcp/courtlistener-list-courts.md
- `courtlistener_search_cases_hybrid` — Read — https://policylayer.com/tools/defendthedisabled-courtlistener-mcp/courtlistener-search-cases-hybrid.md
- `courtlistener_search_cases_semantic` — Read — https://policylayer.com/tools/defendthedisabled-courtlistener-mcp/courtlistener-search-cases-semantic.md
- `courtlistener_search_judges` — Read — https://policylayer.com/tools/defendthedisabled-courtlistener-mcp/courtlistener-search-judges.md
- `courtlistener_search_oral_arguments` — Read — https://policylayer.com/tools/defendthedisabled-courtlistener-mcp/courtlistener-search-oral-arguments.md
- `courtlistener_verify_citation` — Read — https://policylayer.com/tools/defendthedisabled-courtlistener-mcp/courtlistener-verify-citation.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=defendthedisabled-courtlistener-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/defendthedisabled-courtlistener-mcp