Create Timeline Item

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

While annotations indicate the tool is not read-only, the description merely restates the creation action without disclosing any additional behavioral traits such as side effects, permissions required, or irreversible consequences. The description adds negligible value beyond the already evident write operation.

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, clear sentence with no extraneous information. It is appropriately sized and front-loaded with the action and resource.

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?

Given the tool's complexity (11 parameters, no output schema), the description is too minimal. It fails to explain what a 'timeline item' is, how it relates to other items, or what the result of creation looks like. More context is needed for the agent to confidently use this tool.

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?

The input schema has 100% description coverage, so the schema already documents all parameters. The tool description adds no parameter details. With full schema coverage, baseline score 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 ('Create') and the resource ('a new timeline item'), and specifies the app context ('E&A app'). However, it does not distinguish this tool from similar sibling tools like 'create_item' or 'create_update', which may cause confusion about when to use this specific tool.

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, nor does it mention any prerequisites or contexts. This omission leaves the agent without decision-making criteria for tool selection among many create_* siblings.

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