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

Annotations only flag destructiveHint=true; the description goes further by disclosing the concrete side effects (removal from the employee's calendar and balance), irreversibility, and the required confirm gate. That is genuine behavioral context beyond what the structured fields provide.

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, front-loaded with the action and its permanence, followed by the confirm requirement and endpoint. No wasted phrasing.

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 destructive tool with a fully documented schema and annotations, nothing essential is missing; the agent knows the effect, the irreversibility, and the gating parameter. No output schema is needed for a delete.

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 coverage is 100%, so a 3 is the baseline. The description adds that the delete is permanent unless confirmed via confirm=true, reinforcing the schema's const constraint with intent; minor added value above 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 ('Permanently delete') and resource ('presence/absence request') plus the REST endpoint. No sibling tool performs deletion, so the agent can distinguish it immediately from jethr_update_absence_request and the list/create tools.

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 gives a precondition ('needs confirm=true') and a consequence ('cannot be undone'), which implies this is the hard-removal path. However, it never says when to choose it over jethr_update_absence_request (e.g. cancelling vs erasing) and names no alternative or exclusion.

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