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

No annotations are provided, so the description carries the full behavioral burden. It never states that this is a read-only operation, whether results are paginated or ordered, or what volume/limits to expect, leaving an agent with only the word 'retrieve' to infer safety and shape.

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 sentences, front-loaded with the purpose and with no wasted prose. The second sentence duplicates what the schema already enforces as required, so it is slightly redundant, but the overall size is appropriate for a simple list tool.

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 two-parameter, 100%-documented list tool this covers the essentials, but with no output schema and no annotations the description should have said something about the returned shape, ordering, or pagination behavior. Adequate but with a clear gap.

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 100%, so board_id and task_number are already documented in the schema. The description's 'Provide board_id + task_number' merely restates the required parameters and adds no format, scope, or constraint detail beyond the structured fields, which is the baseline 3 case.

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 and resource ('retrieve all comments') and bounds it to 'a specific task', which separates it from add_comment and delete_comment by verb. It does not explicitly contrast with the potentially overlapping list_task_activity sibling, so it stops short of full sibling 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?

'Use this to retrieve all comments for a specific task' implies the context (you have a task and want its comments) but gives no when-not guidance and does not mention the alternative of list_task_activity, which also surfaces task-level activity. Usage is inferable rather than stated.

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