A product's release cycles

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

The annotations already cover safety (readOnly, idempotent, non-destructive), and the description adds useful scoping details: only maintained cycles plus recent ended ones are included, and the recommended upgrade target is provided. Nothing contradicts the annotations, but the behavioral context is modest.

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?

One dense, front-loaded sentence covers the resource and all key output aspects without filler. Every clause adds information, and the most important constraint ('maintained release cycle') comes first.

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?

Given the output schema and safety annotations, the description covers the return content and basic scope sufficiently for an agent to call the tool. The main missing element is explicit usage or alternative-selection guidance, but that is not essential 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 coverage is only 50%: include_ended has a description, but product is documented only as a string. The description identifies product as the lifecycle subject and hints at include_ended via 'most recent ended ones', adding some meaning. However, it does not explain how to reference a product or the interaction between the two parameters.

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 is specific and clear: it names the resource (a product's release cycles) and enumerates the returned fields (status, release, support/EOL dates, LTS flag, latest patch, upgrade target). It does not explicitly contrast itself with check_project or check_versions, so it misses the top score for sibling differentiation.

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?

There is no guidance about when to use this tool versus check_project or check_versions, nor any context about expected use cases or exclusions. The description only states what is returned, not how to choose it among siblings.

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