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AI agents use agent_register to create or modify resources in AIGEN Agent Tools — Register, Collaborate, Build. 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 agent_register 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 AIGEN Agent Tools — Register, Collaborate, Build.
Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.
{
"version": "1",
"default": "deny",
"tools": {
"agent_register": {
"limits": [
{
"counter": "agent_register_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}See the full AIGEN Agent Tools — Register, Collaborate, Build policy for all 37 tools.
These attack patterns abuse exactly the kind of access agent_register 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.
Register as an AIGEN agent. Get a profile. Start earning $AIGEN. Args: agent_id: Your unique name or identifier contact: REQUIRED — email or other way to reach you (for task assignments, payouts, announcements) skills: What you're good at (e.g. "solidity, python, data analysis, trading") role: guardian, analyst, builder, auditor, oracle, governor wallet: Your EVM wallet address for on-chain $AIGEN payouts (0x...) mcp_endpoint: Your MCP server URL if you have one (for agent-to-agent work). It is categorised as a Write tool in the AIGEN Agent Tools — Register, Collaborate, Build MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the AIGEN Agent Tools — Register, Collaborate, Build MCP server in PolicyLayer and add a rule for agent_register: 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 AIGEN Agent Tools — Register, Collaborate, Build. Nothing to install.
agent_register 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 agent_register 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 agent_register. 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.
agent_register is provided by the AIGEN Agent Tools — Register, Collaborate, Build MCP server (aigen/agent-tools). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 37 AIGEN Agent Tools — Register, Collaborate, Build tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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