Show the active SINT identity for the current session. Use this before issuing tokens, approving requests, or debugging delegation so you can confirm the acting public key and token context. Returns a JSON object with the current public key, token ID, and role.
AI agents call sint__whoami to retrieve information from SINT Protocol without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and retrieves session identity information (public key, token ID, role) for diagnostic and verification purposes. It performs no writes, modifications, deletions, code execution, or financial operations. The stated use case—confirming identity before issuing tokens or approving requests—is a read-only diagnostic action. No capability-altering or state-changing effects occur.
From the tool's definition Tool name 'sint__whoami' and description 'Show the active SINT identity for the current session' and 'Returns a JSON object with the current public key, token ID, and role' indicate pure information retrieval with no side effects.
Documented attack patterns abuse exactly the kind of access sint__whoami gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and SINT Protocol, and nothing reaches the server without passing your rules. This is the rule we recommend for sint__whoami:
{
"version": "1",
"default": "deny",
"tools": {
"sint__whoami": {}
}
}sint__whoami is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Show the active SINT identity for the current session. Use this before issuing tokens, approving requests, or debugging delegation so you can confirm the acting public key and token context. Returns a JSON object with the current public key, token ID, and role. It is categorised as a Read tool in the SINT Protocol MCP Server, which means it retrieves data without modifying state.
Register the SINT Protocol MCP server in PolicyLayer and add a rule for sint__whoami: 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 SINT Protocol. Nothing to install.
sint__whoami 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 sint__whoami 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 sint__whoami. 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.
sint__whoami is provided by the SINT Protocol MCP server (sint-ai/sint-protocol). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from SINT Protocol, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
21 SINT Protocol tools catalogued and risk-classified — across an index of 43,000+ MCP servers.