get_sunnah_prayer_times

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

No annotations are provided, so the description shoulders the full burden of behavioral disclosure. It only states the primary behavior ('Return time windows') without revealing side effects, defaults for null parameters, timezone assumptions, or output format. The lack of any detail beyond the core action leaves the agent uninformed about edge cases and expected behavior.

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, front-loaded sentence with no filler. It precisely states the tool's purpose without waste, making it easy to parse quickly.

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?

The tool has three optional parameters, no output schema, and no annotations, so the description must carry more weight. It does not explain the structure of the returned time windows, how the optional parameters affect results, or any assumptions about location or date. The description is too sparse to fully support an agent in using the tool 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?

With 0% schema description coverage, the description must explain the parameters, but it only mentions 'for a given date' without specifying the date format or the roles of latitude and longitude. It does not clarify whether these parameters are required, optional, or what happens when they are omitted, leaving the agent uncertain about how to invoke the tool.

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 function: returning Duha (Ishraq) and Tahajjud time windows for a given date. It uses a specific verb ('Return') and identifies a distinct resource (Sunnah prayer time windows) that sets it apart from sibling tools like get_prayer_times or get_daily_azan_schedule.

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 clear context that this tool is specifically for Sunnah prayer times (Duha and Tahajjud) on a given date, implying it should be used when such windows are needed rather than the general prayer time tools. However, it does not explicitly state when not to use it or mention alternative tools for similar purposes.

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