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

Annotations already declare readOnlyHint, idempotentHint, non-destructive and openWorld behavior, so the safety profile is covered. The description adds the useful behavioral detail that results reflect change over time, but it says nothing about the time window, freshness, or coverage limits of the analysis.

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 front-loaded sentence naming the source, the resource, the temporal scope, and the four output components, with no filler. Every clause earns its place.

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 single-parameter read tool with annotations covering safety and no output schema, the description conveys what is returned (S/W/O/T plus change over time). It could say more about the time horizon or whether the brand must be monitored, but it is otherwise sufficient.

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 one parameter and schema description coverage is 100% — the schema already explains that 'domain' is a brand domain from the RivalSweeper account with an example. The description adds no format or sourcing detail beyond that, so the baseline of 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?

The description names a specific resource (SWOT analysis of a brand) plus a scope qualifier ('over time') and enumerates the four dimensions returned, which distinguishes it from sibling analysis tools like get_full_brand_snapshot or get_brand_price_statistics. It never explicitly contrasts itself with a sibling, so it falls short of a 5.

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 guidance on when to choose this tool over alternatives such as get_full_brand_snapshot, no stated preconditions (e.g. that the brand must already be tracked in the account), and no exclusions. Usage is only inferable from the resource name.

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