current_conditions

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

No annotations are provided, so the description carries the full burden. It discloses that it fetches real-time data from NOAA SWPC and generates an operator-friendly band outlook, but does not explicitly state that it is read-only or describe any side effects, rate limits, or authentication needs. Given the output schema exists, the description provides adequate but not rich behavioral context.

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 concise, using three short paragraphs that front-load key information. Every sentence adds value: a metaphor, a list of data sources, and clear use cases. No unnecessary words.

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 the tool's simplicity (one optional param, no required fields, output schema exists), the description covers purpose, usage, parameters, and expected outcome. It does not discuss limitations or data freshness, but overall it is sufficiently complete for an agent to use it correctly.

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 has one optional parameter with a description. The description adds 'solar elevation context' and indicates it is 'optional but recommended', which provides additional guidance beyond the schema. Since schema coverage is 100%, a baseline of 3 is appropriate, and the added context merits a 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 clearly states it provides live space weather and band conditions, fetching specific data like SFI and Kp index, and generating a band outlook. It uses the metaphor 'like a morning propagation forecast' and gives specific use cases ('What bands should I use today?'), making it easy to distinguish from siblings like band_openings or band_summary.

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 explicitly states 'Perfect for: ...' with two concrete use cases, which helps an agent decide when to invoke it. However, it does not provide guidance on when not to use it or explicitly compare with sibling tools.

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