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

Annotations already declare readOnlyHint=true and openWorldHint=false, so the safety profile is covered. The description adds the useful disclosure that results are limited to the current day and what fields appear, but says nothing about ordering, pagination, or auth scope, so it is solidly adequate rather than rich.

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 tight sentences: the payload description first, then the routing phrases. Every clause earns its place, with no filler or restatement of the title.

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?

With no parameters, no output schema, and minimal annotations, the description carries the return-shape burden and does so by listing the fields. Complete enough to call correctly; only minor gaps (ordering, volume of results) remain.

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 tool takes zero parameters, so the baseline is 4; there is nothing for the description to clarify beyond confirming no inputs are needed. It adds no misleading parameter hints.

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 names the resource (today's jobs) and enumerates the fields returned (time, customer, technician, status, priority), so an agent knows exactly what comes back. It is clearly scoped to today, which separates it from broader siblings like find_jobs or technician_jobs, though it never names those alternatives 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?

It gives concrete trigger utterances — "today's schedule", "what's on today", "morning brief" — which is strong positive routing guidance for user-intent matching. It stops short of stating when NOT to use it or pointing to sibling tools for adjacent needs (e.g. a specific technician's day).

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