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Part of the Aml server.
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AI agents use watchlist_update to create or modify resources in Aml. 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 watchlist_update 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 Aml.
Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.
{
"version": "1",
"default": "deny",
"tools": {
"watchlist_update": {
"limits": [
{
"counter": "watchlist_update_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}See the full Aml policy for all 12 tools.
These attack patterns abuse exactly the kind of access watchlist_update 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.
Check watchlist freshness and reload from OpenSanctions. Use force_reload=true to refresh cache.. It is categorised as a Write tool in the Aml MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Aml MCP server in PolicyLayer and add a rule for watchlist_update: 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 Aml. Nothing to install.
watchlist_update 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 watchlist_update 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 watchlist_update. 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.
watchlist_update is provided by the Aml MCP server (https://tooloracle.io/aml/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 Aml tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
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