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

Annotations already declare readOnlyHint=true, so safety is covered without description help. The description adds the raw endpoint (GET /brands/{brand_id}/keywords) and enumerates which fields the keyword records contain, but says nothing about pagination defaults or empty-result behavior beyond what the schema implies.

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 plus the endpoint path — no padding, and the resource/scope leads. The endpoint restatement is mildly redundant with the tool name but harmless.

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 read-only list tool with no required parameters, a fully documented schema, and no output schema, this is close to sufficient: it tells the agent what the records look like. Missing only pagination/result-shape detail, which the schema largely covers.

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 coverage is 100%, with limit, active, and offset each fully described in the schema, so the baseline is 3. The description adds no filtering syntax or clarification beyond those field names, so it does not exceed the baseline.

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 ('List') and resource ('brand's text-to-join keywords') and enumerates the record fields returned, which distinguishes it from the singular slicktext_get_keyword sibling. It does not explicitly name that sibling or contrast scope, 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 when-to-use guidance, no mention of when to prefer this over slicktext_get_keyword for a single record, and no note about prerequisites such as needing a brand_id in context. Only the fields returned are given.

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