Set current location

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

With no annotations, "Records" at least signals a state-changing operation, while the default-pickup statement discloses a meaningful downstream effect. It remains unclear whether the previous value is overwritten, whether existing quotes or rides are affected, how long the setting persists, or how lookup failures are handled.

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?

A single short sentence communicates both the action and its consequence without filler. The core purpose is front-loaded, and the wording is efficient and easy to scan.

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?

For a simple two-parameter setter with fully documented inputs, the description and schema together provide most of what is needed for basic selection and invocation. Missing sibling routing and mutation-scope details prevent full completeness, particularly because there are no annotations or output schema to supply additional context.

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 100%, so the baseline of 3 applies. The schema rather than the description documents saved place names, "here", coordinates, address lookup, and the optional label; the description adds no parameter-specific detail.

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 gives a specific action ("Records"), resource (the user's current location), and concrete effect ("used as the default pickup point"), so it adds value beyond the title. It does not explicitly differentiate the tool from get_current_location or save_place, and "right now" is narrower than the schema's support for arbitrary saved places, addresses, and coordinates.

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 default-pickup purpose provides ride-related context and implies setting the location before requesting or scheduling a ride. However, there is no explicit workflow guidance, prerequisite, exclusion, or direction to alternatives such as get_current_location, save_place, or search_address.

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