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Todoist List Tasks

todoist_list_tasks
Read-onlyIdempotent

List active (incomplete) tasks / to-do items from Todoist. Optionally filter by a project id, or by a Todoist filter query (a powerful query language, e.g. "today | overdue", "p1 & #Work", "no date"). Returns each task's id, content, description, project id, priority, due date/datetime, labels, and web URL.

Input Schema

NameRequiredDescriptionDefault
filterNoOptional Todoist filter query to select tasks, e.g. "today | overdue", "p1", "#Work & no date", "7 days". See Todoist's filter query language.
project_idNoOptional project id to restrict tasks to a single Todoist project (from todoist_list_projects).

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed1 schema field changed
    • addedInput schema / examples
      Added value: +[
      +  {
      +    "filter": "today | overdue"
      +  },
      +  {
      +    "filter": "p1",
      +    "project_id": "2203306152"
      +  }
      +]
  2. First observed

TDQS

A4.5/5.0
Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already declare readOnlyHint, idempotentHint, and non-destructive behavior. The description adds value by detailing return fields and filter syntax, enhancing transparency beyond annotations.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Two well-structured sentences: first states purpose, second adds details. Every sentence earns its place with no wasted words.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness5/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given no output schema, the description sufficiently explains return values. With adequate annotations and two optional parameters, it covers all necessary context for agent use.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 100%, and the description adds meaningful examples and explains the filter query language, providing additional context beyond the schema.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states it lists active (incomplete) tasks with optional filters, using a specific verb and resource. It distinguishes from siblings like todoist_get_task and todoist_list_projects.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides clear context on when to use (listing tasks with optional filters) but does not explicitly state when not to use or suggest alternatives. The sibling tool list provides implicit differentiation.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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