Get Segment Details

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

With no annotations, the description carries the full burden of disclosing behavior, but it only states 'Get segment details' with no information about output format, pagination, error handling, or any side effects. It does not even clarify whether this is a read-only operation, which is critical given the 'reach_segments' naming implies a data structure.

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?

The description is extremely short, which is not necessarily concise but under-specified. It lacks structure and does not earn its place because it repeats the tool's name and title without adding meaningful information.

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?

This is a simple one-parameter read tool, but the description is so minimal that it fails to convey essential information: what a 'segment' is, what details are included, and how this differs from list/contact tools. Without annotations or output schema, the description is the only source of context and it is woefully insufficient.

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?

The single parameter 'segment_uuid' is fully described in the schema (100% coverage), and the description 'Get segment details' adds minimal value but does not contradict. Since the schema already documents the parameter adequately, the baseline is 3, and the description's clarity about 'segment details' provides slight extra context.

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 only says 'Get segment details,' which is a vague verb+resource but lacks specificity about what a 'segment' is or what details are returned. It does not distinguish itself from sibling tools like reach_segments_list or reach_segments_contacts, leaving the agent unsure which tool to use.

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?

No guidance is given on when to use this tool versus alternatives. The presence of sibling tools like reach_segments_list, reach_segments_contacts, and reach_segments_profile_contacts creates ambiguity, but the description provides no exclusions or context to resolve it.

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