schedule_tweet

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

Given no annotations, the description must disclose behavioral traits. It only states 'schedule' and 'future posting', omitting details like actual posting behavior, cancellation methods, rate limits, authentication requirements, or potential errors. This leaves significant gaps for an agent deciding whether to invoke the tool.

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 short sentence that efficiently communicates the core function. Every word contributes to the purpose; no superfluous content.

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?

While the tool is simple and the schema covers parameters fully, the description lacks important context such as timezone handling, scheduling horizon (e.g., minimum lead time), and error scenarios. An output schema exists but its content is not leveraged. The description is minimally adequate but could be more informative for agent usage.

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 schema description coverage is 100% for all three parameters. The tool description does not add any further meaning beyond what is already in the schema. Thus, a baseline score of 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 tool's action ('Schedule'), the resource ('a tweet'), and the context ('for future posting'). This distinguishes it from immediate posting tools like post_tweet, making the purpose unambiguous.

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 use for future-only scheduling but does not explicitly state when to use this tool versus alternatives like post_tweet or delete_scheduled_tweet. No exclusions or context are provided beyond the core action.

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