search_news_by_coin

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

No annotations are provided, so the description carries the full behavioral burden. It mentions the default and maximum limit, which is mildly useful, but does not disclose ordering, pagination, response format, rate limits, or any side effects. The read-only nature is only implied by the word 'search'.

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?

The description is compact and well-structured: a one-sentence purpose statement followed by a clear Args block. Every sentence and detail earns its place with no redundancy or 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?

The tool is simple, but there is no output schema, no annotations, and no guidance about sibling tool selection. The description leaves out expected return values and behavioral context, which an agent would need to reliably choose and trust this tool among many similar news-related alternatives.

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?

With 0% schema description coverage, the description fully compensates by explaining both parameters. It gives concrete examples for coin ('BTC', 'ETH', 'SOL', 'TRUMP') and specifies the default and maximum for limit, adding meaning beyond the raw schema types.

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 clearly states the action ('Search news') and the specific resource ('related to a specific cryptocurrency coin/token'), making the tool's purpose immediately understandable. It is clear enough to distinguish from generic search tools, though it does not explicitly name or contrast with sibling tools like search_news or search_news_advanced.

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 description provides parameter usage instructions but does not say when to use this tool versus alternatives. There is no mention of when to choose search_news_by_coin over search_news or search_news_advanced, and no exclusions or context for preference are given.

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