summarize_crypto_news

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

With no annotations, the description carries the behavioral burden. It usefully states that the digest is 'extractive' and enumerates output components, but it does not clarify side effects, input constraints, or behavior around malformed/empty news data.

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 a single, front-loaded sentence with no filler. Every element—extractive, short feed excerpts, source links, coin mentions—earns its place and quickly communicates the core deliverable.

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?

Despite having an output schema, the description omits the input contract for the 'news' object and the meaning of 'max_items'. Combined with the lack of usage guidance and parameter semantics, the description is not sufficient for correct invocation.

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%, and the description does not explain what the 'news' object should contain or how 'max_items' influences the digest. The agent is left without the parameter-level details needed to construct a valid call.

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 verb 'Create' with the specific resource 'an extractive news digest', and details what the digest contains: feed excerpts, source links, and detected coin mentions. This makes it distinguishable from sibling tools like fetch_today_crypto_news and analyze_crypto_insights.

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 gives no guidance on when to use this tool versus the siblings. It does not mention alternatives, exclusions, or prerequisites such as needing fetched/stored news first, so an agent must infer usage context from the tool name alone.

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