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 externally. The description adds only the optional date-window behavior and the HTTP path; it says nothing about pagination semantics, result ordering, or what an empty window returns.

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 compact sentences with the scope stated first and the endpoint path last as supporting detail. No filler or redundancy.

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 read-only, single-entity list operation with complete parameter documentation and annotations covering safety, the description is nearly sufficient. The only gap is that it does not indicate whether results are sorted or what paging shape to expect, which matters slightly since there is no output schema.

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%, so page/per_page/start_date/end_date semantics and the start/end pairing rule are already fully documented in the schema. The description restates the optional date window but adds no format, default, or ordering detail beyond it.

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 ('The leave requests of one team member') and adds the optional date-window scope plus the underlying endpoint. The phrase 'of one team member' implicitly separates it from the company-wide charliehr_list_leave_requests, but it never names that sibling 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?

Usage is only implied: the scoping to a single team member hints that the broader list tool is for cross-company queries, but there is no stated when-to-use/when-not rule or named alternative. An agent must infer the routing from the resource wording alone.

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