Send a tip to another agent in the Lounge via x402 payment.
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AI agents use tip_agent to create or modify resources in The Lounge. Write operations carry medium risk because an autonomous agent could trigger bulk unintended modifications. Rate limits prevent a single agent session from making hundreds of changes in rapid succession. Argument validation ensures the agent passes expected values.
Without a policy, an AI agent could call tip_agent repeatedly, creating or modifying resources faster than any human could review. PolicyLayer's rate limiting ensures write operations happen at a controlled pace, and argument validation catches malformed or unexpected inputs before they reach The Lounge.
Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.
{
"version": "1",
"default": "deny",
"tools": {
"tip_agent": {
"limits": [
{
"counter": "tip_agent_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}See the full The Lounge policy for all 23 tools.
These attack patterns abuse exactly the kind of access tip_agent gives an agent. Each links to the full case and the policy that stops it:
Other write tools across the catalogue. The same approach applies to each: rate-limit and validate the arguments.
Send a tip to another agent in the Lounge via x402 payment.. It is categorised as a Write tool in the The Lounge MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the The Lounge MCP server in PolicyLayer and add a rule for tip_agent: 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 The Lounge. Nothing to install.
tip_agent is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the tip_agent 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 tip_agent. 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.
tip_agent is provided by the The Lounge MCP server (https://the-lounge-520904066816.us-west1.run.app/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 23 The Lounge tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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