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

Annotations already declare readOnlyHint and openWorldHint, so the safety profile is covered. The description adds the returned field set and the slug source constraint, but omits operational behavior such as pagination, sorting, result limits, or rate limits.

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?

Two sentences, front-loaded with the resource and return payload, followed by the prerequisite. Every sentence earns its place and there is no filler.

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 single-parameter read tool with an output schema and read-only annotations, the description covers purpose and valid input source sufficiently. It could mention pagination or result limits, but those are minor gaps for this tool type.

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 carry parameter meaning. It does so by stating that slug must come from slickdeals_categories and that it identifies a category/tag, though it provides no format, examples, or case rules.

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 states it returns current deals for one category/tag and lists the fields, so the resource and scope are clear. It also names slickdeals_categories as the source of the slug, partially distinguishing it from sibling category-listing tools, but it does not explicitly contrast with frontpage or search tools.

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 implied use case is looking up deals for a known category/tag, and the slug prerequisite points the agent to slickdeals_categories first. However, there is no explicit guidance on when to choose this over slickdeals_search, slickdeals_frontpage, or slickdeals_primary_category, and no when-not conditions.

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