todoist_filter_update · Mcp Todoist MCP: Risk & Policy

WHAT IT DOES

What todoist_filter_update does on Mcp Todoist

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

WHY IT NEEDS A POLICY

Why todoist_filter_update needs a policy

The tool modifies filter properties (name, query, color, order, favorite status) but these changes are reversible and do not delete data, execute external code, move money, or cause irreversible damage. The blast radius is limited to a single user's filter preferences in their Todoist workspace. This is a classic Write operation: creating or modifying data reversibly.

From the tool's definition Tool name contains 'update' and description states 'Update an existing filter in Todoist. Can update name, query, color, order, or favorite status.' This is reversible modification of filter configuration metadata.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

todoist_filter_update Rate-limited

todoist_filter_update 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": {
    "todoist_filter_update": {
      "limits": [
        {
          "counter": "todoist_filter_update_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 Mcp Todoist, so you can run agents against it safely.

FAQ

Questions about todoist_filter_update

What does the todoist_filter_update tool do? +

Update an existing filter in Todoist. Can update name, query, color, order, or favorite status. Note: Frozen filters (from cancelled subscriptions) cannot be modified. It is categorised as a Write tool in the Mcp Todoist MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on todoist_filter_update? +

Register the Mcp Todoist MCP server in PolicyLayer and add a rule for todoist_filter_update: 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 Mcp Todoist. Nothing to install.

What risk level is todoist_filter_update? +

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

Can I rate-limit todoist_filter_update? +

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

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

todoist_filter_update is provided by the Mcp Todoist MCP server (@greirson/mcp-todoist). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.