update_checklist_item

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

With no annotations provided, the description is the sole source of behavioral disclosure. It states the action but does not mention side effects, idempotency, permission requirements, or behavior when only partial fields are supplied. It implies a write operation but adds no other behavioral context.

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, focused sentence that front-loads the core purpose and then lists the main updatable aspects. There is no redundancy or fluff, and it is appropriately concise for a simple mutation 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 has 8 parameters (only 3 required) and no output schema, yet the description does not explain that only specified fields can be updated or that other fields remain unchanged. It also lacks information about return values or error conditions. An agent would have to infer partial-update semantics from the schema alone, which is not sufficient.

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 each parameter has a short schema description. The tool description loosely maps 'toggle done' to checked, 'edit text' to text, and 'set due/responsible' to due_date and responsible_id, but adds little beyond the schema. Since the schema already documents parameters, a baseline of 3 is appropriate.

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 ('Update a checklist item') and enumerates the supported modifications (toggle done, edit text, set due/responsible). This distinguishes it from sibling tools like add_checklist_item and remove_checklist_item, which are specific to other operations.

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 provides no guidance on when to use this tool versus alternatives. It does not mention prerequisites, whether it is for updating an existing item only, or any conditions that would make another tool more appropriate. Given no annotations, the description should carry this burden but does not.

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