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

Annotations already declare the tool as read-only, idempotent, and non-destructive, covering the safety profile. The description adds the behavioral detail of returning completions, but it does not disclose error behavior, auth requirements, or pagination. Since annotations carry the main safety burden, a score of 3 is appropriate.

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?

The description is a single, front-loaded sentence that immediately states the action and resource. There is no redundancy or filler, earning a perfect score for conciseness.

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 simple get-by-ID tool with one parameter and no output schema, the description is reasonably complete. It indicates the task details and completions will be returned, but does not mention potential error responses or the exact structure of the output. Given the simplicity, this is a minor gap, hence a 4.

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 schema describes task_id as 'Task ID' with 100% coverage, so the description does not need to add parameter details. The word 'specific' in the description aligns with the single required ID parameter but adds no extra semantic value beyond 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 clearly states the action ('Get details') and the specific resource ('a specific task'), distinguishing it from sibling tools like tascan_list_tasks. The addition of 'including completions' clarifies the scope of the retrieved data, making the purpose unambiguous.

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 this tool is for retrieving details of a single task by ID, but it does not explicitly state when to prefer it over alternatives like tascan_list_tasks, nor does it mention any exclusions or prerequisites. The usage context is clear but not elaborated.

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