Medium Risk

update_rule

Update an existing content rule. You can change the name, severity, config, description, or fix_hint. Use get_rule_set to find rule IDs.

Part of the Frase SEO server.

update_rule can modify Frase SEO data, with no limits today. PolicyLayer puts allow, deny, and rate-limit rules on every call. Live in minutes.

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AI agents use update_rule 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 update_rule 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.

policy.json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "update_rule": {
      "limits": [
        {
          "counter": "update_rule_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

See the full Frase SEO policy for all 151 tools.

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These attack patterns abuse exactly the kind of access update_rule gives an agent. Each links to the full case and the policy that stops it:

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Every attack above starts with a tool call. PolicyLayer checks each one against your policy first, so update_rule only ever does what you allow.

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Other write tools across the catalogue. The same approach applies to each: rate-limit and validate the arguments.

What does the update_rule tool do? +

Update an existing content rule. You can change the name, severity, config, description, or fix_hint. Use get_rule_set to find rule 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.

How do I enforce a policy on update_rule? +

Register the Frase SEO MCP server in PolicyLayer and add a rule for update_rule: 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.

What risk level is update_rule? +

update_rule is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit update_rule? +

Yes. Add a rate_limit block to the update_rule 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.

How do I block update_rule completely? +

Set action: deny in the PolicyLayer policy for update_rule. 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.

What MCP server provides update_rule? +

update_rule 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.

Enforce policy on every Frase SEO tool call.

Deterministic rules across all 151 Frase SEO tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

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