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

Annotations already establish readOnlyHint=true and openWorldHint=true. The description adds behavior the annotations do not: results are ordered newest first, and after_id gives incremental delivery. It omits rate-limit or payload-size behavior, so it is not a 5.

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 with no waste: the content list comes first, then the polling instruction. Every clause carries information, so nothing needs trimming.

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 and read-only, and the polling model is conveyed, but it has no output schema and the description does not describe the returned item shape, including the id field that after_id depends on. An agent still has to infer what a feed entry looks like.

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 has to carry the load. It explains after_id well (largest id you have, returns only newer entries), but it never explains the group enum values, leaving 'bots' unmentioned, and says nothing about limit beyond the default that the schema already supplies.

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 names a concrete resource (live alerts) and enumerates the event types included: insider and smart buys and sells, launches, bundle and dev sells, and clusters. That is far more specific than a restatement of the title 'Live feed'. It does not, however, distinguish itself from siblings that overlap in coverage (get_news, get_launches), so it falls short of a 5.

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?

It gives one concrete usage instruction: pass after_id with the largest id you have, to fetch only new entries. This implies polling, but the description never says when to use this feed versus get_news or get_launches, and it gives no guidance on how to choose a group or limit.

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