Revoke a principal's endorsement of an agent. 'I no longer authorize this agent.'
Part of the Agent Passport System — Cryptographic Identity for AI Agents server.
Free to start. No card required.
AI agents may call revoke_endorsement to permanently remove or destroy resources in Agent Passport System — Cryptographic Identity for AI Agents. Without a policy, an autonomous agent could delete critical data in a loop with no way to undo the damage. PolicyLayer blocks destructive tools by default and requires explicit human approval before enabling them.
Without a policy, an AI agent could call revoke_endorsement in a loop, permanently destroying resources in Agent Passport System — Cryptographic Identity for AI Agents. There is no undo for destructive operations. PolicyLayer blocks this tool by default and only allows it when a human explicitly approves the action.
Destructive tools permanently remove data. Block by default. Only enable with explicit approval workflows.
{
"version": "1",
"default": "deny",
"hide": [
"revoke_endorsement"
]
}See the full Agent Passport System — Cryptographic Identity for AI Agents policy for all 150 tools.
These attack patterns abuse exactly the kind of access revoke_endorsement gives an agent. Each links to the full case and the policy that stops it:
Other destructive tools across the catalogue. The same approach applies to each: deny by default, or require human approval.
Revoke a principal's endorsement of an agent. 'I no longer authorize this agent.'. It is categorised as a Destructive tool in the Agent Passport System — Cryptographic Identity for AI Agents MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Agent Passport System — Cryptographic Identity for AI Agents MCP server in PolicyLayer and add a rule for revoke_endorsement: 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 Agent Passport System — Cryptographic Identity for AI Agents. Nothing to install.
revoke_endorsement 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 revoke_endorsement 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 revoke_endorsement. 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.
revoke_endorsement is provided by the Agent Passport System — Cryptographic Identity for AI Agents MCP server (agent-passport-system-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 150 Agent Passport System — Cryptographic Identity for AI Agents tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
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