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

No annotations are provided, so the description carries the full burden. It does disclose one real behavioral trait — a guest JWT yields a reduced result set (showcase / Use scope only), which is genuine scoping information beyond the schema. It says nothing about what happens with an invalid/absent credential, pagination, or result shape.

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?

A single front-loaded sentence with the resource and credential condition stated immediately; no filler. It is arguably too terse for a tool whose name does not reveal its credential model, but nothing in it is wasted.

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?

With no annotations and no output schema, the description is the only behavioral source, and it covers credential scope but not what a returned environment looks like, ordering, or pagination. Adequate but with clear gaps for a two-parameter listing tool with an unusual dual-credential model.

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 100%, so the schema already documents both apiKey and sessionToken, including the 'prefer apiKey' guidance. The description's 'guest JWT sees showcase / Use scope only' restates and slightly sharpens the sessionToken semantics, which is marginal added value over structured data.

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 a specific verb (List) and resource (environments) scoped to a product API key, which is clear enough to distinguish it from mutators like veya_create_environment or veya_register_environment. However it never names or contrasts with the read siblings veya_get_environment or veya_read_environment_onchain, so sibling differentiation is left to inference.

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 parenthetical implies credential selection (product API key vs guest JWT) and warns that a guest JWT only sees showcase/Use scope, which is useful context. There is no explicit when-to-use-this-vs-alternatives statement, and the choice between this, veya_get_environment and veya_read_environment_onchain is unaddressed.

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