AI agents call lithtrix_passport_get to retrieve information from Lithtrix without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves public identity and cryptographic information (DID and public key) without authentication, which is characteristic of Read operations. Public keys and DIDs are intentionally disclosed and their retrieval causes no state changes or side effects. No data is modified, deleted, or destructively altered.
From the tool's definition Tool description explicitly states 'GET /v1/agents/{agent_id}/passport — public DID + PEM public key (no authentication)'.
Attacks that exploit this kind of access
GET /v1/agents/{agent_id}/passport — public DID + PEM public key (no authentication). It is categorised as a Read tool in the Lithtrix MCP Server, which means it retrieves data without modifying state.
Register the Lithtrix MCP server in PolicyLayer and add a rule for lithtrix_passport_get: 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 Lithtrix. Nothing to install.
lithtrix_passport_get 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 lithtrix_passport_get 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 lithtrix_passport_get. 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.
lithtrix_passport_get is provided by the Lithtrix MCP server (lithtrix/lithtrix-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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