Create or update a custom scoring profile. Profiles are sparse overrides: only specify the weights you want to change. Everything else keeps its default value. If a profile with this name already exists, it is updated with the new weights (full replacement, not merge). Weights are points, not per...
Risk signalsBulk/mass operation — affects multiple targets
Part of the Unphurl server.
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AI agents use create_profile 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 create_profile 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": {
"create_profile": {
"limits": [
{
"counter": "create_profile_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 create_profile 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.
Create or update a custom scoring profile. Profiles are sparse overrides: only specify the weights you want to change. Everything else keeps its default value. If a profile with this name already exists, it is updated with the new weights (full replacement, not merge). Weights are points, not percentages. Each weight is the number of points that signal adds to the score when it fires. They don't need to total 100. A profile with weights totalling 90 is conservative (max possible score is 90). A profile with weights totalling 130 is aggressive (multiple signals quickly push to the cap of 100). The threshold the agent sets for action matters more than the weight totals. Use show_defaults to see all 25 signals with their default weights and descriptions before creating a profile. Use check_url or check_urls with the "profile" parameter to score results with this profile. Maximum 20 profiles per account. Profile name "default" is reserved. Common profiles: - Cold email: weight parked (30), chain_incomplete (25), ssl_invalid (15) higher. Lower brand_impersonation (10). - Security bot: keep brand_impersonation high (40), increase domain_age_7 (30), redirects_5 (25). - Lead gen: weight parked (35), http_only (20), chain_incomplete (20) for dead business detection. - SEO audit: weight redirects_5 (30), chain_incomplete (30), parked (25) for link quality. See the Unphurl API documentation for all 19 use case weight examples.. 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 create_profile: 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.
create_profile 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 create_profile 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 create_profile. 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.
create_profile 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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