Medium Risk

update_landing_page

Update a landing page's configuration, title, or SEO settings. Pass the full widget config JSON to update the page layout and content.

Part of the PO6 Mailbox server.

update_landing_page can modify PO6 Mailbox 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_landing_page to create or modify resources in PO6 Mailbox. 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_landing_page 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 PO6 Mailbox.

Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.

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

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These attack patterns abuse exactly the kind of access update_landing_page 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_landing_page 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_landing_page tool do? +

Update a landing page's configuration, title, or SEO settings. Pass the full widget config JSON to update the page layout and content.. It is categorised as a Write tool in the PO6 Mailbox 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_landing_page? +

Register the PO6 Mailbox MCP server in PolicyLayer and add a rule for update_landing_page: 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 PO6 Mailbox. Nothing to install.

What risk level is update_landing_page? +

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

Can I rate-limit update_landing_page? +

Yes. Add a rate_limit block to the update_landing_page 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_landing_page completely? +

Set action: deny in the PolicyLayer policy for update_landing_page. 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_landing_page? +

update_landing_page is provided by the PO6 Mailbox MCP server (https://mcp.po6.com). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every PO6 Mailbox tool call.

Deterministic rules across all 39 PO6 Mailbox tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

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