AI agents call ad4m_get_neighbourhood to retrieve information from Mcp Ad4m without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and inspects existing semantic graph data shared via URL. It performs a read-only operation to view information, producing no modifications, deletions, execution, or financial impact. The 'Read' category is appropriate for inspection and retrieval operations without side effects.
From the tool's definition Tool description explicitly states 'Read a shared AD4M Neighbourhood by URL' and 'inspect semantic graphs' — both indicate retrieval/query operations with no data modification or side effects.
Attacks that exploit this kind of access
Read a shared AD4M Neighbourhood by URL. Use to inspect semantic graphs shared with other agents or communities. It is categorised as a Read tool in the Mcp Ad4m MCP Server, which means it retrieves data without modifying state.
Register the Mcp Ad4m MCP server in PolicyLayer and add a rule for ad4m_get_neighbourhood: 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 Mcp Ad4m. Nothing to install.
ad4m_get_neighbourhood 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 ad4m_get_neighbourhood 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 ad4m_get_neighbourhood. 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.
ad4m_get_neighbourhood is provided by the Mcp Ad4m MCP server (thefranceway/mcp-ad4m). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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