add_glas

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

With no annotations, the description carries the burden of behavioral disclosure. It adds useful details: coordinate frame (ITRF2008), height conversion (TOPEX/Poseidon to WGS84 ellipsoid), temporal range (2003-2009), and provenance return. However, it does not disclose side effects such as whether the scene is mutated persistently or whether existing shots are replaced.

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 compact and dense, with useful details packed into one sentence. The 'Slice 2:' prefix is slightly cryptic but does not seriously hurt clarity. Every other clause adds meaningful information.

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 no annotations, no output schema, and 0% schema coverage, so the description must provide a complete picture. It gives coordinate and provenance context but leaves parameter meanings and side-effect behavior unexplained, making it incomplete for safe use.

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 for the three parameters. It only indirectly hints at scene_id via 'existing scene' and provides no meaning for time_window or max_granules. This is a significant gap for correct invocation.

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 a specific verb ('add') and resource ('ICESat/GLAS GLAH06 40 Hz shots') applied to an existing scene, which is easy to understand. It does not explicitly contrast with sibling tools like show_photons, but the operation and resource are specific enough to avoid confusion.

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 gives no guidance on when to use this tool versus alternatives such as show_photons or coregister. It says 'Slice 2' but does not explain the workflow context or list any exclusions or preferred alternatives.

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