Return this node's sustained connectivity tier.
AI agents call node_reachability to retrieve information from Tenzro Ledger MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and returns information about a node's connectivity status. It is a read-only operation with no side effects—it neither modifies data, executes code, deletes anything, nor commits financial obligations. The low severity reflects minimal blast radius: an AI agent misusing this tool could only retrieve connectivity metadata, which poses no security risk.
From the tool's definition Tool name 'node_reachability' and description 'Return this node's sustained connectivity tier' indicate a query operation that retrieves status information about network connectivity without modifying, executing, or affecting any state.
Attacks that exploit this kind of access
Return this node's sustained connectivity tier. It is categorised as a Read tool in the Tenzro Ledger MCP MCP Server, which means it retrieves data without modifying state.
Register the Tenzro Ledger MCP server in PolicyLayer and add a rule for node_reachability: 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 Tenzro Ledger MCP. Nothing to install.
node_reachability 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 node_reachability 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 node_reachability. 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.
node_reachability is provided by the Tenzro Ledger MCP server (https://canton-mcp.tenzro.network/mcp). 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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