spss_cluster_hierarchical

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

With no annotations, the description carries the full burden. It mentions the prerequisite of SPSS being installed but does not disclose whether the tool modifies data, returns outputs, creates files, or has side effects. The 'dendrogram' hint is the only behavioral clue, which is insufficient for a complex statistical operation.

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 three short sentences, each contributing distinct value: the primary action, the configurable options, and the external dependency. There is no redundant filler or unnecessary detail.

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 six parameters and a complex statistical procedure, this description is under-specified. It does not explain how to choose a linkage method, what the output (including the dendrogram) looks like, or the role of the id_variable. Although an output schema exists, the description itself provides minimal context for using the tool correctly.

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. It only vaguely references 'linkage methods and distance measures,' which partially aligns with the 'method' and 'measure' enums, but it does not explain the required 'file_path' and 'variables' parameters or the optional 'dendrogram' and 'id_variable' fields.

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 opens with 'Run hierarchical cluster analysis with dendrogram,' which is a specific verb+resource statement. It clearly distinguishes this tool from siblings like 'spss_twostep_cluster' by specifying the hierarchical method, and the mention of linkage methods and distance measures further clarifies the scope.

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 on when to use this tool vs alternatives. It only states what the tool does and the SPSS installation requirement, but does not mention when hierarchical clustering is appropriate, when not to use it, or whether another cluster tool should be preferred.

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