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

Annotations already cover the safety profile (readOnlyHint, idempotentHint, destructiveHint=false, openWorldHint=false), and the description adds genuine value beyond them by explaining what the returned base_target means, the 0-100 scale and direction of each metric, and the 'Not money' unit caveat. It stops short of describing the full response shape, but for an annotated read tool this is solid disclosure.

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?

Purpose is front-loaded in the opening sentence, and each following sentence earns its place by clarifying base_target semantics, metric direction/scale, and units. No filler 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?

With no output schema, the description compensates well by defining the meaning, range, and direction of the returned metrics plus the base_target caveat. Given the simple single-parameter read, this is nearly complete, though the broader response structure remains unspecified.

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?

There is a single parameter with 100% schema description coverage ('Infrastructure LoS target ID'), so the schema already carries the parameter meaning. The description adds nothing parameter-specific, leaving the baseline of 3 appropriate.

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 first sentence gives a specific verb and resource ('Get a single infrastructure LoS target by ID'), making the single-by-ID scope clear and implicitly contrasting with the list tool. However, it does not differentiate itself from close siblings such as get_system_los_target or get_los_proposed_target, so sibling discrimination relies on the entity name alone.

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 only implied: 'by ID' signals it is the lookup-for-one path, and it points at list_infrastructure_los_targets for the criticality-adjustment explanation. It never states when to prefer this over list_infrastructure_los_targets or a system-level target getter, so routing guidance is thin.

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