toggle_checklist_item

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

With no annotations, the description carries the full behavioral burden. It does disclose the core state-changing behavior (done toggles to not done), but it gives no additional context about side effects, idempotency, or what entity is affected beyond the vague term 'task.'

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 one concise sentence with no wasted words and the core action is front-loaded. It could be slightly improved by using 'checklist item' instead of 'task,' but overall it is well-sized for such a simple 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?

The tool is simple, has one parameter, and has an output schema, so the description does not need to explain return values. However, it is missing explicit connection to the checklist item context and lacks guidance on how this differs from update_task_status.

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%, so the description needed to compensate by explaining item_id, but it never mentions it. The single parameter is self-descriptive and clearly identifies the entity being toggled, so the gap is not severe, but the description adds no 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 uses a specific verb ('toggle') and a resource ('task') and clearly conveys the done/not-done state transition. It does not explicitly differentiate from the sibling update_task_status, and it says 'task' rather than 'checklist item,' so there is slight 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?

No guidance is given about when to use this tool versus alternatives like update_task_status or get_checklist. The only usage signal is implied by the verb 'toggle,' which is not enough to route an agent confidently.

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