Evaluate content against a rule set. Returns pass/fail results for each rule, an overall status, and a summary. Use list_rule_sets to find rule set IDs and list_content to find content IDs.
Part of the Frase SEO server.
Free to start. No card required.
AI agents use evaluate_rules to create or modify resources in Frase SEO. 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 evaluate_rules 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 Frase SEO.
Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.
{
"version": "1",
"default": "deny",
"tools": {
"evaluate_rules": {
"limits": [
{
"counter": "evaluate_rules_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}See the full Frase SEO policy for all 151 tools.
These attack patterns abuse exactly the kind of access evaluate_rules 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.
Evaluate content against a rule set. Returns pass/fail results for each rule, an overall status, and a summary. Use list_rule_sets to find rule set IDs and list_content to find content IDs.. It is categorised as a Write tool in the Frase SEO MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Frase SEO MCP server in PolicyLayer and add a rule for evaluate_rules: 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 Frase SEO. Nothing to install.
evaluate_rules 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 evaluate_rules 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 evaluate_rules. 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.
evaluate_rules is provided by the Frase SEO MCP server (frase-io/newfrase). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 151 Frase SEO tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
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