Return the account's saved recipients (address book). Free. Reuse a recipient_id in create_gift instead of re-entering an address.
Part of the Token Of Esteem server.
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AI agents call list_recipients to retrieve information from Token Of Esteem without modifying any data. This is common in research, monitoring, and reporting workflows where the agent needs context before taking action. Because read operations don't change state, they are generally safe to allow without restrictions -- but you may still want rate limits to control API costs.
Even though list_recipients only reads data, uncontrolled read access can leak sensitive information or rack up API costs. An agent caught in a retry loop could make thousands of calls per minute. A rate limit gives you a safety net without blocking legitimate use.
Read-only tools are safe to allow by default. No rate limit needed unless you want to control costs.
{
"version": "1",
"default": "deny",
"tools": {
"list_recipients": {}
}
}See the full Token Of Esteem policy for all 12 tools.
These attack patterns abuse exactly the kind of access list_recipients gives an agent. Each links to the full case and the policy that stops it:
Other read tools across the catalogue. The same approach applies to each: allow, with a rate cap to control cost.
Return the account's saved recipients (address book). Free. Reuse a recipient_id in create_gift instead of re-entering an address.. It is categorised as a Read tool in the Token Of Esteem MCP Server, which means it retrieves data without modifying state.
Register the Token Of Esteem MCP server in PolicyLayer and add a rule for list_recipients: 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 Token Of Esteem. Nothing to install.
list_recipients 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 list_recipients 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 list_recipients. 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.
list_recipients is provided by the Token Of Esteem MCP server (https://mcp.tokenofesteem.com/v1/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 12 Token Of Esteem tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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