estimate-time-off-balance

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

With no annotations provided, the description carries the full disclosure burden. The verb 'estimate' implies a read-only computation, but the description does not state whether pending requests are included, what assumptions are made, or that no data is modified. It provides basic behavioral direction but lacks supporting context.

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?

The description is a single sentence with no repetitive or extraneous content. It front-loads the core purpose and stays appropriately brief for a tool with only two parameters.

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 two-parameter tool with full schema coverage, the description is essentially complete. It does not specify the structure of the return value since no output schema exists, but the estimated balance is reasonably inferable from the tool name and purpose.

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?

The input schema provides 100% parameter description coverage, including the date format (YYYY-MM-DD) and numeric employee ID. The tool description adds no parameter-specific meaning beyond what the schema already supplies, so it meets the baseline without extra contribution.

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?

The description uses a specific verb ('estimate') and a distinct resource ('future time-off balance') with a clear target ('employee on a given date'), which distinguishes it from sibling tools like get-time-off-requests and get-whos-out. The agent can determine exactly what this tool computes without inspecting the schema.

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?

The description implies the use case—projecting a balance for a future date—but does not explicitly compare with alternatives such as get-time-off-requests or get-whos-out. It offers no when-not-to-use guidance or known limitations, leaving the agent to infer context from the tool name and sibling list.

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