Add one or more domains to this account's trusted allowlist. Allowlisted domains suppress the compound signal and brand impersonation floor in scoring. The full pipeline still runs — all signals remain visible so you can monitor trusted domains for SSL expiry, parking, or other changes. Submit th...
Part of the Unphurl server.
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AI agents use add_to_allowlist to create or modify resources in Unphurl. 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 add_to_allowlist 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 Unphurl.
Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.
{
"version": "1",
"default": "deny",
"tools": {
"add_to_allowlist": {
"limits": [
{
"counter": "add_to_allowlist_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}See the full Unphurl policy for all 16 tools.
These attack patterns abuse exactly the kind of access add_to_allowlist 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.
Add one or more domains to this account's trusted allowlist. Allowlisted domains suppress the compound signal and brand impersonation floor in scoring. The full pipeline still runs — all signals remain visible so you can monitor trusted domains for SSL expiry, parking, or other changes. Submit the registrable domain only (e.g. partnerco.com). Subdomains and full URLs are rejected. Adding partnerco.com covers sub.partnerco.com and all other subdomains automatically. Maximum 1,000 domains per account. Maximum 100 domains per request. Duplicates are silently skipped.. It is categorised as a Write tool in the Unphurl MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Unphurl MCP server in PolicyLayer and add a rule for add_to_allowlist: 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 Unphurl. Nothing to install.
add_to_allowlist 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 add_to_allowlist 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 add_to_allowlist. 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.
add_to_allowlist is provided by the Unphurl MCP server (123Ergo/unphurl-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 16 Unphurl tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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