Medium Risk

update-label

Update an existing label on a task by finding it by name

How to control update-label ↓

What update-label does on KanbanFlow MCP Server

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

Medium Risk

Why update-label needs a policy

Updating a label modifies task data but is fully reversible (labels can be changed, removed, or restored). This qualifies as Write rather than Execute or Destructive. Severity is medium because misuse could corrupt task organization or misleading labeling across a board, but the impact is limited to label metadata and does not affect task content, deletion, or financial operations.

From the tool's definition Tool name 'update-label' and description 'Update an existing label on a task' indicate modification of task metadata. This is a reversible write operation.

Documented attack patterns abuse exactly the kind of access update-label gives an agent:

How to control update-label

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

policy.json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "update-label": {
      "limits": [
        {
          "counter": "update-label_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

update-label 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.

  1. Create a free account and register KanbanFlow 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.
LIMIT THIS TOOL →

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Related tools and policies

Go deeper

Questions about update-label

What does the update-label tool do? +

Update an existing label on a task by finding it by name. It is categorised as a Write tool in the KanbanFlow MCP Server 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-label? +

Register the KanbanFlow MCP Server MCP server in PolicyLayer and add a rule for update-label: 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 KanbanFlow MCP Server. Nothing to install.

What risk level is update-label? +

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

Can I rate-limit update-label? +

Yes. Add a rate_limit block to the update-label 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-label completely? +

Set action: deny in the PolicyLayer policy for update-label. 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-label? +

update-label is provided by the KanbanFlow MCP Server MCP server (williamavholmberg/kanbanflow-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 KanbanFlow MCP Server tool call.

Start from KanbanFlow MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

Free to start. No card required.

16 KanbanFlow MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.

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