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 genuinely new behavior: results are 'current' (freshness), limited to a single 'public' section, and the input must be sourced from another tool. It does not discuss result volume or rate limits, but that is a minor gap given the output schema exists.

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 tight clauses with zero filler, and the scope constraint ('one public section') is front-loaded ahead of the prerequisite. Every sentence 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?

With one fully documented parameter, an output schema, and annotations covering the safety and openness profile, the description supplies everything an agent needs: purpose, scope, and the prerequisite call. Nothing material is missing.

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% and the schema already enumerates 21 documented section slugs, so the baseline is 3. The description adds provenance value by stating the slug must come from gamesradar_sections, which nudges the agent to resolve the value rather than guess from the schema list.

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 and resource ('Current GamesRadar+ headlines') plus a scope qualifier ('one public section'). It routes the agent to the gamesradar_sections sibling for valid inputs, though it does not explicitly contrast itself with gamesradar_news or gamesradar_article beyond the headline framing.

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?

Explicitly states the prerequisite that the section value 'must come from gamesradar_sections,' which is actionable context for a first-time caller. It stops short of naming when-not to use it or which sibling to pick for full articles.

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