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

Annotations already declare readOnlyHint=true, destructiveHint=false and openWorldHint=true, so the safety profile is covered. The description adds the returned fields (assignee, due date, completion state) and the backing endpoint, but says nothing about result volume or pagination — notable given there are zero filter parameters, so a call returns the full task set.

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 short, front-loaded sentences with no filler: the first carries purpose and payload, the second carries the endpoint. Nothing redundant with the title.

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 no parameters and no output schema, the description does its main job by naming the fields each task carries. The remaining gap is behavioral scale — whether results are paginated or capped — which matters for a zero-filter list on an open-world API.

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?

The tool takes no parameters, so there is nothing for the description to disambiguate beyond confirming the call is unfiltered. That is the baseline-4 case; the description does not mislead about any inputs.

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?

States a specific verb and resource ("List tasks") and clarifies what a task is ("to-dos such as editing or delivery steps"), which disambiguates it from appointment/order siblings. The "List" verb plus singular sibling aryeo_get_task makes the collection-vs-single distinction inferable, though no sibling is named explicitly.

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?

Usage is only implied by the verb: use this to browse tasks, use aryeo_get_task for one task, aryeo_complete_task to close one. There is no explicit when-to-use, when-not, or named alternative, so the agent must infer routing from sibling names.

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