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

Annotations already declare readOnly/idempotent/non-destructive, so the bar is lower, and the description still adds two things annotations cannot: the performance cost of `include` and the "Contains personal data" PII disclosure. It omits any statement about default result scope (e.g. whether resigned employees are included) or rate limits, keeping it below a 5.

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 dense sentences: return surface first, then filters, then the include caveat and the PII/endpoint tags. No filler, no repetition of the title, and the risky knob is called out last where it is most likely to be read.

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 description correctly compensates by enumerating the returned fields including the "and more" catch-all, and pagination is fully specified in the schema via page/limit plus the next_page hint. It never covers default scope, authentication, or result-size limits, which matter for a 15-parameter PII-bearing list call.

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%, so 3 is the baseline; the description earns one extra point by giving the `include` parameter a cost/behavior meaning that the schema's "Extra sub-objects per employee" does not convey, and by grouping the date filters (join/created/modified) conceptually. It does not add syntax or format detail beyond the schema's yyyy-mm-dd notes.

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 and resource (list employees of the company) and enumerates the fields returned plus the full filter surface, ending with the concrete endpoint GET /v3/employees. It also implicitly differentiates itself from sibling roster tools (list_family_info, list_payroll_info, list_formal_education) by explaining those come back as `include` sub-objects of this call instead.

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?

"Filter by user ids, email, branch, organization, job position, job level, employment status, or join/created/modified dates" tells the agent to narrow rather than enumerate, and "use it sparingly, it slows the call" is actionable guidance on the include knob. It stops short of naming when to prefer talenta_get_employee over this list call, so no explicit exclusion is given.

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