get_qibla_direction

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

No annotations exist, so the description must fully disclose behavior. It states the output format (degrees and cardinal direction) but does not mention potential geolocation fallback, error handling, or internet requirement. Basic transparency is provided but lacks completeness.

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 15-word sentence that is front-loaded with the key action and result. No unnecessary words or repetition.

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 no output schema and no annotations, the description provides the return format but omits input parameter details and any edge-case behavior (e.g., null coordinates). It is adequate for a simple tool but not fully comprehensive.

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?

Schema description coverage is 0%, and the description fails to mention the two parameters (latitude, longitude) or explain how they influence the result. The description adds zero value over the input schema.

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 verb 'Return', the resource 'Qibla bearing in degrees and 16-point cardinal direction', and the target 'toward the Kaaba in Makkah'. It uniquely identifies this tool among siblings like 'get_prayer_times' or 'calculate_zakat'.

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 tool's purpose is straightforward and no sibling provides a similar function, so confusion is minimal. However, the description does not explicitly state when to use it or mention optional parameter behavior (e.g., using default location if coordinates are null).

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