habit_checkin · Tick MCP: Risk & Policy

WHAT IT DOES

What habit_checkin does on Tick

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

WHY IT NEEDS A POLICY

Why habit_checkin needs a policy

Based on the tool name and server context, 'habit_checkin' likely records a habit check-in (marking a habit as done for a given period), which is a write operation. No description is provided, so confidence is lowered. It is unlikely to be destructive or financial.

From the tool's definition Tool name 'habit_checkin' on a server that manages TickTick habits; description is empty.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

habit_checkin Rate-limited

habit_checkin 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": {
    "habit_checkin": {
      "limits": [
        {
          "counter": "habit_checkin_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 Tick, so you can run agents against it safely.

FAQ

Questions about habit_checkin

What does the habit_checkin tool do? +

habit_checkin. It is categorised as a Write tool in the Tick MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on habit_checkin? +

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

What risk level is habit_checkin? +

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

Can I rate-limit habit_checkin? +

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

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

habit_checkin is provided by the Tick MCP server (kpihx/tick-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.