What Roblox shipped recently

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

Annotations already establish readOnlyHint=true, openWorldHint=true, and destructiveHint=false, so safety is covered. The description adds useful behavioral detail by stating that the tool returns the latest Weekly Recap body plus all other published items within the time window, and it lists the content sources. This goes beyond annotations by clarifying the output composition, though it does not address potential truncation or section grouping.

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 three sentences with each earning its place: definition, use cases, and return content. It is front-loaded with the digest concept and avoids redundant or promotional language. The structure makes it easy for an agent to quickly grasp what the tool does and when to invoke it.

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 tool with four optional parameters and no output schema, the description explains the main return content and the time-window behavior, which is sufficient for initial selection. It could be more complete by mentioning that results are organized into sections and that max_tokens controls the recap body length, but the description combined with the schema gives enough context for correct invocation in most scenarios.

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 documents three of four parameters with descriptions, leaving max_tokens undocumented. The tool description adds little parameter-level meaning beyond the schema, mostly echoing the time-window concept already described in the days parameter. Because schema coverage is 75% and the description does not compensate for the undocumented max_tokens, this is adequate but not exceptional.

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 defines the tool as a digest of recent Roblox platform changes, explicitly naming the Weekly Recap, engine Release Notes, and Announcements. It distinguishes itself from the sibling get_weekly_recap by noting it returns the latest recap body plus everything else published in the time window. The title 'What Roblox shipped recently' reinforces the resource being accessed.

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 explicit use cases: when a game regressed for no obvious reason, when checking whether an update explains new behavior, or when the user asks what is new. It gives clear context for when the tool is appropriate, though it does not explicitly mention when not to use it or name alternative sibling tools.

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