create_timeline

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 reveals that the tool creates and opens a timeline and that the timeline starts empty, but it does not disclose behavior around name collisions, whether opening changes the current workspace context, or whether the operation can fail or overwrite existing timelines.

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, front-loaded sentence with no filler. Every word contributes: 'Create and open' specifies the action, 'new empty' scopes the resource state, and 'exact name' clarifies parameter semantics.

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 low-complexity with one parameter and an output schema, so return format details are already covered. However, the description omits edge-case behavior around duplicate names, workspace switching, and failure conditions, which an agent would benefit from knowing before invoking the 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?

Schema description coverage is 0%, so the description must compensate. It adds the meaningful qualifier 'exact name,' indicating the provided string is used verbatim, but it does not explain name constraints such as uniqueness, length, or allowed characters. The parameter itself is simple enough that this partial guidance is marginally sufficient.

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 a specific verb-resource pair: 'Create and open a new empty timeline.' It distinguishes this from sibling tools like open_timeline or list_timelines by emphasizing 'new empty,' so an agent can select it correctly without opening the schema.

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 the tool is used when a new timeline must be created and opened, but it does not explicitly state when not to use it or mention alternatives such as open_timeline for existing timelines. The usage context is inferable but not spelled out.

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