manage_tags · Inoreader MCP: Risk & Policy

WHAT IT DOES

What manage_tags does on Inoreader

AI agents use manage_tags to create or update resources in Inoreader — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Inoreader environment.

WHY IT NEEDS A POLICY

Why manage_tags needs a policy

This tool modifies article states and metadata (read/unread status, starred status, custom tags) but does not irreversibly delete data or execute arbitrary code. These changes are reversible through subsequent calls to unmark, unstar, or remove tags.

From the tool's definition Tool description states 'Mark articles as read/unread/starred, or apply/remove custom tags' - these are state modifications that change article metadata. The 'add_tag=' parameter indicates tag application capability, a reversible write operation.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

manage_tags Rate-limited

manage_tags stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "manage_tags": {
      "limits": [
        {
          "counter": "manage_tags_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Inoreader, so you can run agents against it safely.

FAQ

Questions about manage_tags

What does the manage_tags tool do? +

Mark articles as read/unread/starred, or apply/remove custom tags. To mark as read: add_tag=. It is categorised as a Write tool in the Inoreader MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on manage_tags? +

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

What risk level is manage_tags? +

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

Can I rate-limit manage_tags? +

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

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

manage_tags is provided by the Inoreader MCP server (justmytwospence/inoreader-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.