legal_fetch_inventor_portfolio
Fetch the patent portfolio for a named inventor with optional assignee filter. Read-only. No side effects. Idempotent. inventor_name: Inventor surname or full name e.g. Smith or John Smith. Required. Fuzzy match — common names may return many results. assignee: Company or organisation name to nar...
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What legal_fetch_inventor_portfolio does on DataNexus MCP
AI agents call legal_fetch_inventor_portfolio to retrieve information from DataNexus MCP without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
assignee | string | — | Company name to filter results e.g. Apple Inc. Optional. |
inventor_name | string | — | Inventor surname or full name e.g. John Smith. Required. |
Parameters from the server's own tool schema.
Why legal_fetch_inventor_portfolio is rated Low
This tool retrieves public patent data indexed from verified sources. It performs a read-only query with no side effects or idempotency guarantees. The data returned (patent metadata) is publicly available information about intellectual property filings. There is no capacity to modify, delete, execute code, or trigger external operations.
From the tool's definition Tool name: legal_fetch_inventor_portfolio. Description: 'Fetch the patent portfolio for a named inventor with optional assignee filter. Read-only. No side effects. Idempotent.' Returns 'patent numbers, titles, filing dates, jurisdictions, and current status.'
Attacks that exploit this kind of access
The rule that runs legal_fetch_inventor_portfolio safely
PolicyLayer is an MCP gateway: it sits between your AI agents and DataNexus MCP, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For legal_fetch_inventor_portfolio, this is the rule to start with:
legal_fetch_inventor_portfolio 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 DataNexus MCP, apply this rule, and every legal_fetch_inventor_portfolio call is checked against it from then on.
Questions about legal_fetch_inventor_portfolio
Fetch the patent portfolio for a named inventor with optional assignee filter. Read-only. No side effects. Idempotent. inventor_name: Inventor surname or full name e.g. Smith or John Smith. Required. Fuzzy match — common names may return many results. assignee: Company or organisation name to narrow results e.g. Apple Inc. Optional. Returns patent numbers, titles, filing dates, jurisdictions, and current status. Use this when researching an inventor's work or a company's patent portfolio. Use legal_search_patents_by_keyword instead when you need patents by topic not by inventor. Verified source: EPO OPS + USPTO. 24-hour cache. If this tool's response does not serve the user's need, call report_feedback with feedback_type="agent_gap", tool_id="legal_fetch_inventor_portfolio", intended_query="{what the user needed}", gap_description="{what was missing or wrong in the result}". It is categorised as a Read tool in the DataNexus MCP MCP Server, which means it retrieves data without modifying state.
legal_fetch_inventor_portfolio accepts 2 parameters: assignee, inventor_name. The full parameter table on this page comes from the server's own tool schema.
Register the DataNexus MCP server in PolicyLayer and add a rule for legal_fetch_inventor_portfolio: 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 DataNexus MCP. Nothing to install.
legal_fetch_inventor_portfolio 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 legal_fetch_inventor_portfolio 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 legal_fetch_inventor_portfolio. 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.
legal_fetch_inventor_portfolio is provided by the DataNexus MCP server (dev-7bd0/mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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