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

Annotations already declare readOnlyHint=true and openWorldHint=true, so the safety profile is covered structurally. The description adds genuinely useful context — a 24 h recency window and that results include links — but does not say what happens when topic is omitted, roughly how many headlines come back, or how freshness is bounded.

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 short sentences, no filler, with the identity of the tool and its equivalence to get_news_live front-loaded ahead of the call condition.

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?

There is no output schema, so the description carries the burden of explaining returns; it gestures at 'headlines with links' but not structure or volume. Default behavior with the optional topic omitted is also undocumented. Adequate for a thin alias tool, but with clear gaps.

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 100%: the topic enum is fully documented including alias groupings (ukraine/war, east_flank/nato/drones) and the catch-all 'geopolitics' semantics. The description adds nothing about topic, so the baseline 3 applies — the schema does all the work.

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 the resource and scope concretely: live 24-hour headlines with links, and immediately establishes that it is an alias of get_news_live, which differentiates it from news_snapshot and the other news siblings. It falls short of 5 because the actual behavior is defined only by reference to another tool, so an agent that doesn't know get_news_live learns little beyond 'news'.

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?

'Call this when your client expects a "news radar"' gives one narrow selection condition, but it is about client naming expectations rather than task fit. There is no guidance on when to prefer this over get_news_live, get_news_snapshot, or get_brief, and no exclusions.

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