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

With no annotations, the description carries the full burden. It usefully discloses the status vocabulary and that succeeded tasks include result download URLs, which is meaningful behavioral context. However, it does not describe the response shape for non-succeeded statuses, whether the call is non-blocking, or any operational behaviors such as task retention or errors.

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: the first states the core action and object, the second adds the status enum and success behavior. There is no filler, repetition, or unnecessary detail, and the most important information is 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?

For a single-parameter read operation the description is mostly adequate, but with no output schema it should say more about what a non-succeeded response looks like and whether the agent should poll. It also does not position itself against wait_for_task, which is a significant sibling for this use case.

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 single parameter task_id is fully documented in the schema, including its provenance from generate_illustration or vectorize_image, so schema coverage is 100%. The description adds no additional parameter meaning beyond what the schema already provides, matching the baseline for high coverage.

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?

Description uses a specific verb ('Fetch'), names the resource ('status of a task'), and enumerates the possible status values, which clarifies the tool's scope. It does not explicitly contrast itself with sibling tools like list_tasks or wait_for_task, so it stops short of full differentiation.

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 the tool is for checking a single task's status but provides no guidance on when to use it instead of list_tasks (listing all tasks) or wait_for_task (blocking until completion). No exclusions, prerequisites, or alternative conditions are stated.

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