gmail_refresh

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

With no annotations, the description carries the full behavioral burden. It usefully discloses that the tool navigates to the list first and performs a pull-to-refresh, but it does not clarify whether sync is synchronous, whether it requires auth/network, or what happens on failure.

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 definition is one front-loaded sentence with no wasted words. The core action is stated first and the navigation behavior is provided as a concise parenthetical.

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?

For a simple no-parameter action with no output schema and no annotations, the description provides enough context to invoke it: it says what is synced and that it navigates to the list first. It could be more complete about whether the refresh is asynchronous or when the sync is considered finished.

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 tool has zero parameters, so parameter semantics are not a meaningful gap. The description appropriately adds no parameter details and the baseline score for zero-param tools is 4.

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 states a specific verb and resource: "Sync mail now" and "pull-to-refresh on the current list." It also clarifies the navigation side effect, "goes to the list first." However, it does not explicitly distinguish this from siblings such as gmail_list, gmail_search, or drive_refresh.

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?

Usage is implied by "Sync mail now" and "current list," suggesting it should be used when the visible mail list needs refreshing. There is no explicit when-not guidance and no named alternative such as gmail_list or calendar_sync.

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