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

readOnlyHint=true already covers the safety profile, so the description's real contribution is the emphasized 'FUTURE' filter, which tells the agent historical/past entries will not be returned. It adds nothing about pagination, result shape, or auth needs, keeping this at a solid-but-limited 3.

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 tight sentence, front-loaded with the action and scope, with the endpoint path appended as a compact routing aid. Nothing is padded or repeated.

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 one-parameter read tool with readOnly annotations, the description supplies the essential scope constraint (one named member, future records only). Return format and pagination remain undisclosed and there is no output schema, but the gap is minor for this complexity level.

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?

Only one parameter and schema description coverage is 100%, so the schema already documents the name format and example ('Joe Acme'). 'By their name' merely restates the schema; 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 a specific verb and resource ('List ... time off') plus the narrowing scope ('one team member's', 'FUTURE'), which implicitly separates it from the sibling workiz_list_time_off. The sibling is not named outright, so it falls just short of a 5.

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?

Requires a user_name, so usage is implied: call this when you want a single person's time off rather than the full list. No explicit when-to-use, when-not-to-use, or named alternative (workiz_list_time_off) is given.

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