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

Annotations already declare readOnlyHint=true, destructiveHint=false and openWorldHint=true, so safety and network scope are covered. The description adds the exact REST path and confirms the shape of what comes back, but says nothing about behavior for a missing/archived employee or error conditions.

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 tight sentences: the payload description leads and the REST endpoint trails as supplementary context. No filler, though the parenthetical field list is dense.

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 compensates by naming the returned fields, and all three parameters are documented in-schema. For a simple single-resource read this is close to sufficient; only error/not-found behavior is unaddressed.

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%, including the archived-toggle semantics for with_archived and the id provenance, so the baseline is 3. The description restates that employee_id is the user id from the list tool but adds no format or constraint detail beyond the schema.

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+resource ('One employee of a location by user id') and enumerates the returned payload (contact details, role, wage type/rate, payroll id), which cleanly separates it from homebase_list_employees and the other get_* siblings.

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?

It tells the agent where the required inputs originate ('the id is the job's user id from homebase_list_employees') and the schema points to homebase_list_locations for the uuid, so the lookup workflow is implied. It stops short of an explicit 'use this instead of X when...' exclusion statement.

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