list_segments

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

With no annotations, the description bears full behavioral burden but discloses almost nothing: no indication of pagination, ordering, permissions, or what the response contains. It also doesn't clarify whether type is a filter that must be chosen or whether both sets are returned, which is a meaningful behavioral ambiguity given 'type' is required.

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 no padding or redundancy. Its brevity is the source of the gaps captured in other dimensions rather than a structural flaw.

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 tool with zero schema description coverage, no annotations, and no output schema, the description is too thin: it omits the search parameter, pagination/result-size behavior, and return shape. An agent could call it, but not confidently predict what comes back.

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 must compensate, but it only loosely maps 'for a website' to websiteId and 'segments or cohorts' to the type enum. The 'search' parameter is never mentioned, nor are any formats or matching semantics (e.g., substring vs. exact).

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 ('saved segments or cohorts') scoped to a website, so an agent can immediately tell it is the enumeration counterpart to create_segment/get_segment. It doesn't name any sibling explicitly, so differentiation is implied by the plural/listing framing rather than declared.

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 get_segment or create_segment, no prerequisites, and no exclusions. Usage is only inferable from the word 'List'.

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