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

With no annotations, the description carries full burden and does well: it enumerates output contents, horizon defaults, the suggested launch date, and explicitly assures 'no hidden queues.' It does not explicitly state read-only behavior or error semantics, but the behavioral detail is strong and trustworthy.

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 uses four sentences, each contributing meaningful detail: output contents, horizon and extra fields, a transparency claim, and integration with submit_product. It is longer than minimal but information-dense and front-loaded with the prime output.

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 one optional parameter, no output schema, and no annotations, the description covers the expected return data comprehensively and adds workflow context. It would benefit from stating the exact structure, but an agent can confidently invoke it and interpret the result.

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 only parameter, horizon_days, is fully documented in the schema with default and max values; the description merely restates that default/max without adding new semantic information. Since schema description coverage is 100%, baseline 3 applies.

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 explicitly states the tool returns the upcoming launch calendar with per-date seat availability, including featured vs taken seats, total daily cap, queued launches, a suggested launch date, and remaining free slots. This goes beyond the title and clearly identifies the resource and what it exposes, distinguishing it from sibling tools like get_launch_status and submit_product.

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?

It provides explicit usage context: 'Use it to pick a launch date before submitting' and then references toolfound_submit_product for claiming the chosen date. This gives a clear workflow and sequential relationship with a sibling. It does not explicitly state when not to use it or contrast with alternatives, so the exclusion is only implied.

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