checklists_items_update

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

With no annotations, the description carries the full burden of behavioral disclosure. It only states the action and the fields, without revealing whether updates are partial or full, what permissions are needed, what happens to unspecified fields, or what response to expect. This is a mutation tool, so such missing context is a significant gap.

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 concise sentence that front-loads the action and resource. It contains no redundancy, jargon, or filler, making it efficient and easy to parse for an agent.

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 relatively simple and the schema fully documents all parameters, so the description is adequate for basic usage. However, it omits the response format, partial-update semantics, and any required permissions, which are useful for an agent to invoke it correctly in a real workflow.

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 the baseline is 3. The description lists the updatable fields (name, assignee, resolved) but those are already described in the schema, adding no extra semantic value. It does not clarify parameter formats, constraints, or relationships beyond what the schema provides.

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') and the resource ('Checklist item'), and enumerates the specific properties that can be changed (name, assignee, resolved status). This distinguishes it from sibling tools like checklists_items_create and checklists_items_delete, as well as checklists_update which targets the checklist itself.

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 usage when an existing checklist item needs modification, but it does not explicitly contrast with create/delete alternatives or mention any prerequisites. There is no guidance on when to prefer this tool over siblings, so the agent must infer the context from the tool name and schema.

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