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

Annotations already declare readOnlyHint=true, destructiveHint=false, and openWorldHint=true, so the safety profile is covered. The description adds value by disclosing the shape of the returned record (address, coordinates, active flag, attendance usage), which matters since there is no output schema. It says nothing about pagination behavior or result volume, which the schema only partially covers.

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?

A single front-loaded sentence names the resource, its subtypes, and the payload fields, with the endpoint appended. Efficient, with only the raw path as marginal noise.

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 simple, fully-annotated, zero-required-param list tool with complete schema docs, this is largely sufficient: the returned-field enumeration substitutes for the absent output schema. Only pagination/volume behavior and any filtering limits are left unstated.

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%, and both params are documented there, including the useful 'Pass the previous reply's next_page' hint. The description adds no parameter meaning beyond the schema, so the baseline of 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 a specific verb and resource ('List locations') and clarifies the domain ('job sites and offices'), plus enumerates the key fields returned (address, coordinates, active flag, time/attendance usage). That distinguishes it from get_location (single record) and create_location by scope, though it never names siblings explicitly.

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 mention of when to prefer exaktime_get_location for a specific site, and no prerequisites or exclusion conditions. The only usage hint is the raw endpoint path, which does not tell an agent when this tool is the right choice.

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