markTaskDone · Knowledge MCP Server MCP: Risk & Policy

WHAT IT DOES

What markTaskDone does on Knowledge MCP Server

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

WHY IT NEEDS A POLICY

Why markTaskDone needs a policy

This tool modifies existing data (task status) but the operation is reversible; a task marked done can be undone or rescheduled. It does not delete data irreversibly, execute arbitrary code, or move money.

From the tool's definition markTaskDone marks a task as complete, which modifies the state of a task from incomplete to done. This is a reversible state change—the task can be unmarked or reopened.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

markTaskDone Rate-limited

markTaskDone 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": {
    "markTaskDone": {
      "limits": [
        {
          "counter": "marktaskdone_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 Knowledge MCP Server, so you can run agents against it safely.

FAQ

Questions about markTaskDone

What does the markTaskDone tool do? +

Mark a task as complete. Provide either a taskId (from getTasks) or searchText to fuzzy-match the task. It is categorised as a Write tool in the Knowledge 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 markTaskDone? +

Register the Knowledge MCP Server MCP server in PolicyLayer and add a rule for markTaskDone: 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 Knowledge MCP Server. Nothing to install.

What risk level is markTaskDone? +

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

Can I rate-limit markTaskDone? +

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

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

markTaskDone is provided by the Knowledge MCP Server MCP server (vuluu2k/knowledge_mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.