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

Annotations already declare this is a non-read-only, non-destructive, closed-world write. The description adds one genuinely new behavioral fact — that task state is managed automatically — but leaves it unexplained (does progress_percent=100 close the task? is the entry reversible?). No auth, validation, or error behavior is disclosed.

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 short sentence with no wasted words, and the core action is front-loaded. The vague trailing phrase 'automatic task state management' is the only slack in an otherwise tight statement.

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 write tool with five fully documented parameters and a clear safety annotation set, the basics are covered. However, no output schema exists and the description neither describes the response nor explains the promised automatic state transition, which is the most consequential behavior for an agent to predict.

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% and every parameter (including the 0-100 range on progress_percent and example account codes) is documented in the schema itself. The description adds no format or constraint detail beyond that, so the baseline 3 applies.

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 ('Log work progress'), so an agent immediately knows this writes a progress entry. The trailing clause hints at a side effect on task state, but no sibling (e.g., UpdatePieceTool) is named to disambiguate when this is preferred over a general update.

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?

There is no when-to-use guidance, no prerequisite (e.g., account_code/task_relative_id must already exist), and no alternative named. Neither when this should be used instead of UpdatePieceTool nor what happens after logging is stated.

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