compute_grid_surface_volume

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

With no annotations, the description carries the full behavioral burden, and it delivers very little. The word 'Estimate' implies an approximate rather than exact result, which is a small useful signal, but nothing is said about units, precision, permissions, or how missing sample points 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 efficient sentence with the resource front-loaded and no filler. It is well-sized, though its brevity is partly under-specification rather than tight craft.

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 3-parameter computational tool with no annotations, no output schema, and 0% schema description coverage, the description is far too thin. It omits the role of base_elevation, the units/return format, and how the calculation handles the optional sample_point_ids, leaving the agent guessing.

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%, so the description must compensate and only partially does. It loosely maps to sample_point_ids ('elevated point samples') and cell_area ('representative cell area'), but says nothing about base_elevation or expected units/formats for any of the three parameters.

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 names a specific verb and resource ('Estimate surface volume') and states the inputs it operates on ('elevated point samples and a representative cell area'). However, it does not differentiate itself from siblings like compute_cut_fill_volume or measure_volume/measure_surface_area, so an agent cannot tell from the description alone which volume tool applies.

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?

There is no explicit when-to-use guidance, no prerequisites, and no named alternatives. The phrase 'from elevated point samples and a representative cell area' hints at the suitable input scenario but never states when this tool should be chosen over compute_cut_fill_volume or similar siblings.

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