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

With no annotations, the description carries the full burden of behavioral disclosure. It adds the ordering behavior ('newest first') and recency scope, but does not explicitly state that the operation is read-only, what the return payload contains, or how empty/error cases behave. For a simple list operation this is acceptable but not complete.

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?

A single sentence with no redundant words. The action, target, and ordering are all present and front-loaded.

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?

The tool is simple (one optional parameter, no output schema), and the description conveys the core purpose. However, it omits return-value expectations, parameter semantics, and any safety-related notes. An agent could still invoke it correctly, but some inference is required.

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 0%: the description never mentions the 'limit' parameter. The input schema documents type, default, minimum, and maximum, but the description adds no semantic meaning (e.g., 'limit controls how many tasks are returned'). Because coverage is below 50%, the description should compensate and fails to do so.

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 states a specific verb ('List'), a resource ('the user's most recent tasks'), and an ordering constraint ('newest first'). It distinguishes itself from siblings like get_task (single task) and generate_* (creation) without ambiguity.

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?

The description implies when to use the tool (when a list of recent tasks is needed) but provides no explicit guidance about when not to use it or how it relates to alternatives. There is no mention of get_task or wait_for_task as better suited for specific scenarios.

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