Low Risk

list-items

List all items in the Rollbar project with optional search and filtering

How to control list-items ↓

AI agents call list-items to retrieve information from Rollbar MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

Low Risk

Even though list-items only reads data, uncontrolled read access leaks sensitive information and racks up API costs — an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.

Risk signalsBulk/mass operation — affects multiple targets

Documented attack patterns abuse exactly the kind of access list-items gives an agent:

PolicyLayer is an MCP gateway — it sits between your AI agents and Rollbar MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for list-items:

policy.json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "list-items": {}
  }
}

list-items is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

  1. Create a free account and register Rollbar MCP Server — nothing to install.
  2. Add this policy — paste it, or build it visually.
  3. Point your MCP client (Claude, Cursor, anything) at your gateway URL.
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Free to start. No card required.

Go deeper

What does the list-items tool do? +

List all items in the Rollbar project with optional search and filtering. It is categorised as a Read tool in the Rollbar MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list-items? +

Register the Rollbar MCP Server MCP server in PolicyLayer and add a rule for list-items: 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 Rollbar MCP Server. Nothing to install.

What risk level is list-items? +

list-items is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit list-items? +

Yes. Add a rate_limit block to the list-items 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 list-items completely? +

Set action: deny in the PolicyLayer policy for list-items. 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 list-items? +

list-items is provided by the Rollbar MCP Server MCP server (rollbar/rollbar-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Rollbar MCP Server tool call.

Deterministic rules across all 8 Rollbar MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

Free to start. No card required.

8 Rollbar MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.

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