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

Annotations already declare readOnlyHint, idempotentHint, and non-destructive behavior, so the safety profile is covered. The description adds return-field semantics (ranges 0-100 vs 0-25, higher/lower-is-better directionality, 'Not money') that annotations cannot convey, which is genuinely useful context; it stops short of describing response structure.

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 core action is front-loaded in the first sentence, followed by dense, high-value field semantics. It is slightly run-on in the middle clauses, but nearly every clause carries information an agent can use.

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?

With no output schema and a trivial one-param input, the description appropriately fills the gap by explaining the returned metric fields' units and directionality. It is close to complete for a simple getter, though it doesn't cover response shape or error behavior.

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% and the single 'id' param is fully documented in the schema (uuid, 'System LoS target ID'). The description only restates 'by ID' and adds no format or constraint detail beyond the schema, so baseline 3 applies.

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?

States a specific verb ('Get'), resource ('single system LoS target'), and retrieval key ('by ID'). It also names a sibling (list_system_los_targets) as the place where the criticality adjustment is explained, letting an agent separate this fetch-by-id tool from the list variant.

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?

Usage is implied by 'single ... by ID', which signals a point lookup rather than a search. However, it never explicitly states when to use this vs list_system_los_targets or get_infrastructure_los_target; the sibling reference is only about where an explanation lives, not about tool selection.

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