create_task

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

No annotations are present, so the description carries the full behavioral burden. It usefully discloses accepted date/datetime formats and the conditional subtask nesting behavior, but it says nothing about side effects, provider requirements, failure modes, or default list behavior. This is adequate but not rich.

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

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

Two tight sentences front-load the operation and then provide the two non-obvious parameter behaviors. There is no filler or repetition of schema boilerplate, and every sentence earns its place.

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

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

With six parameters, no annotations, and no output schema, the description is incomplete. It omits invocation context for listId/provider, default-list behavior, and what the tool returns or does on failure. The agent can invoke it in simple cases but lacks enough context to handle ambiguous or provider-specific situations.

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

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

Schema description coverage is only 33%, so the description must compensate. It adds real meaning for dueDate by specifying accepted ISO/RFC 3339 formats and for parentTaskId by explaining nesting. However, notes and title are left undocumented in prose, and listId/provider are only covered by the schema.

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

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

The description opens with the specific verb-resource pair 'Create a task,' which is unambiguous and immediately conveys the operation. The added dueDate and parentTaskId details sharpen scope, but it does not explicitly differentiate from sibling tools like create_task_list or update_task, so it stops short of 5.

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

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

No conditions, prerequisites, or alternatives are given. It never states when to choose create_task over update_task or complete_task, and it does not explain how to handle the listId or provider selection. The 'where supported' phrase hints at a limitation but leaves the agent without guidance for unsupported cases.

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