planka_add_link_attachment

WHAT IT DOES

What planka_add_link_attachment does on Planka MCP Server for Claude

AI agents use planka_add_link_attachment to create or update resources in Planka MCP Server for Claude — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Planka MCP Server for Claude environment.

WHY IT NEEDS A POLICY

Why planka_add_link_attachment needs a policy

This tool creates new data (a link attachment) and modifies an existing card object, making it a Write operation. It is reversible (attachments can be removed), so it does not rise to Destructive. The severity is medium because while it adds metadata, it doesn't alter core project data or enable arbitrary code execution.

From the tool's definition 'Add a link attachment to a card' - this operation creates a new attachment resource associated with a card, modifying the card's state by adding a relationship/reference to an external link.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

planka_add_link_attachment Rate-limited

planka_add_link_attachment 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": {
    "planka_add_link_attachment": {
      "limits": [
        {
          "counter": "planka_add_link_attachment_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 Planka MCP Server for Claude, so you can run agents against it safely.

FAQ

Questions about planka_add_link_attachment

What does the planka_add_link_attachment tool do? +

Add a link attachment to a card. It is categorised as a Write tool in the Planka MCP Server for Claude MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on planka_add_link_attachment? +

Register the Planka MCP Server for Claude MCP server in PolicyLayer and add a rule for planka_add_link_attachment: 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 Planka MCP Server for Claude. Nothing to install.

What risk level is planka_add_link_attachment? +

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

Can I rate-limit planka_add_link_attachment? +

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

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

planka_add_link_attachment is provided by the Planka MCP Server for Claude MCP server (nextheberg/planka-mcp-server-for-claude). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.