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

Annotations already declare readOnlyHint, idempotentHint, non-destructive and closed-world, so the safety profile is fully covered. The description adds only the ordering guarantee ('newest first'); it says nothing about scope (tenant/user) or default page size, which would have been genuinely additive.

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 short sentence with the sort order front-loaded and no filler. It is efficient, though extremely terse for a tool whose pagination has a non-obvious dual response shape.

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?

For a two-optional-parameter read tool with full schema documentation and complete read-only annotations, the description covers what it does and how results are ordered. No output schema exists, but the response shapes are documented in the parameter descriptions.

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 100%, and the limit/cursor properties document the legacy bare-array mode and the paged { items, next_cursor, limit } shape in detail. The description adds nothing beyond this, so the baseline 3 applies.

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 ('studio_environment rows') plus the default ordering ('newest first'), so an agent knows exactly what it returns. It doesn't explicitly name the sibling read/create/update/delete tools, but the list semantics are unambiguous against them.

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 statement of when to use this versus studio_environment_read (single row) or the other environment tools, and no prerequisites or exclusions. The agent must infer from the name alone that this is the collection-browsing entry point.

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