Revoke an active capability token so it can no longer authorize actions. Use this when access should end immediately because of policy change, incident response, or delegation cleanup; the revocation is written to both the revocation store and the ledger. Returns a confirmation message.
AI agents call sint__revoke_token to permanently remove resources in SINT Protocol — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Revoking a capability token is irreversible in practice — once revoked and written to the revocation store and ledger, the token cannot authorize further actions and the revocation is permanently recorded.
From the tool's definition Revoke an active capability token so it can no longer authorize actions... the revocation is written to both the revocation store and the ledger
Documented attack patterns abuse exactly the kind of access sint__revoke_token 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__revoke_token:
{
"version": "1",
"default": "deny",
"hide": [
"sint__revoke_token"
]
}sint__revoke_token disappears from the agent's tool list entirely, and any attempt to call it is denied. The rest of the server keeps working.
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Revoke an active capability token so it can no longer authorize actions. Use this when access should end immediately because of policy change, incident response, or delegation cleanup; the revocation is written to both the revocation store and the ledger. Returns a confirmation message. It is categorised as a Destructive tool in the SINT Protocol MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the SINT Protocol MCP server in PolicyLayer and add a rule for sint__revoke_token: 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__revoke_token is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the sint__revoke_token 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__revoke_token. 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__revoke_token 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.