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

Annotations only declare readOnlyHint=true; the description adds real context beyond that — the required employee_overview:read scope, an explicit note that salary and personal contact data are absent, and the paging contract. What's missing is the page size or any total-count behaviour, which matters for a paginated list.

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?

Front-loaded with the field set and scope, then paging, then endpoint — a sensible ordering with no filler. The single dense sentence listing nine fields is a little heavy but every element is informative.

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?

With no output schema, the enumerated field list is doing essential work, and the scope plus paging note round out what an agent needs to call it. Only page size and end-of-results signalling are unstated, which is a minor gap for a read-only list tool.

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 coverage is 100% and the schema already says to use next_page from the previous reply. The description restates that mapping ('pass next_page as page') without adding format or edge-case detail, so it sits at the baseline for schema-covered parameters.

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 names the verb and resource (list employees) and pins down the exact record variant: the lighter overview record with an enumerated field set. It implicitly separates itself from jethr_list_employees and jethr_get_employee_overview via 'lighter overview record' and the plural list, but it never names those siblings, so the boundary is inferable rather than explicit.

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?

Usage is only implied: the lighter payload and single required scope suggest this is the cheap enumeration path, but nothing states when to prefer it over jethr_list_employees or when to follow up with jethr_get_employee_overview. No exclusions or alternative routing are given.

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