Medium Risk

unlock_display

Unlocks a previously locked display so that content changes (send_html, send_url, clear_display) are accepted again. Use this when the user wants to resume managing a locked display. Requires admin scope. Returns id and locked (boolean false). To lock again, use lock_display.

Risk signalsHandles credentials or secrets (access_token) · Admin/system-level operation

Part of the Agentview server.

unlock_display can modify Agentview 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 unlock_display to create or modify resources in Agentview. 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 unlock_display 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 Agentview.

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

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

See the full Agentview policy for all 55 tools.

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

Browse the full MCP Attack Database →

Every attack above starts with a tool call. PolicyLayer checks each one against your policy first, so unlock_display 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 unlock_display tool do? +

Unlocks a previously locked display so that content changes (send_html, send_url, clear_display) are accepted again. Use this when the user wants to resume managing a locked display. Requires admin scope. Returns id and locked (boolean false). To lock again, use lock_display.. It is categorised as a Write tool in the Agentview MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on unlock_display? +

Register the Agentview MCP server in PolicyLayer and add a rule for unlock_display: 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 Agentview. Nothing to install.

What risk level is unlock_display? +

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

Can I rate-limit unlock_display? +

Yes. Add a rate_limit block to the unlock_display 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 unlock_display completely? +

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

unlock_display is provided by the Agentview MCP server (rafaelkocurek-nvob/agentview). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Agentview tool call.

Deterministic rules across all 55 Agentview tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

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