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

Annotations already declare readOnlyHint=true, so the safety profile is covered. The description adds the returned content shape (paired roles on each side) and the underlying REST endpoint, but says nothing about pagination behavior, result ordering, or what an empty relationship set looks like — relevant since skip/take exist.

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?

Two short sentences, front-loaded with the returned data and followed by the endpoint mapping. Every clause earns its place; the API route reference is mildly redundant but useful for routing.

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 read-only list endpoint with full schema coverage, readOnlyHint, and no output schema, the description covers the essentials: what is returned and for which constituent. It would be stronger with a note on paging defaults or relationship-type filtering, but nothing required to call it correctly is missing.

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%, so all four parameters (constituent_id, skip, take, last_modified) are already documented in the schema. The description only implies the constituent_id via 'this constituent' and adds no filtering or pagination semantics beyond that, 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 the resource precisely — relationships between the identified constituent and others — and enumerates example roles (spouse, employer, board member), so an agent knows exactly what data comes back. It never says 'list' explicitly in prose and does not contrast itself with siblings like bloomerang_get_constituent, so it stops short of top marks.

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 when-to-use guidance, no prerequisites, and no mention of alternatives such as bloomerang_get_constituent or bloomerang_get_constituent_timeline. The usage is only inferable from the resource named, which is minimal for a tool sitting among 19 siblings.

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