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

Annotations already declare the full safety profile (readOnlyHint, idempotentHint, non-destructive, closed-world), so the description's job is lighter. It adds genuine value by disclosing the return contents — plan/limits, zone, counts, and 10 recommended moves — which is useful given there is no output schema.

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: the first front-loads what the overview contains, the second gives the routing cue. Every clause carries content, though the parenthetical enumeration of numbers is slightly dense.

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 output schema and no parameters, the description must convey what comes back, and it does so by listing the overview's sections. For a simple read-only dashboard tool this is close to complete; only the exact format of the returned data is left unstated.

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 per the rubric the baseline is 4. The description correctly implies a no-argument, single-shot read with nothing for the agent to supply.

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 states a specific verb and resource — it reports the organization's situation on DeviL, enumerating plan/limits, zone, key numbers, and 10 recommended next moves. 'Usalo per primo' positions it as the entry-point dashboard, which meaningfully distinguishes it from the action-oriented siblings, though it doesn't name a specific alternative.

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?

'Usalo per primo' (use it first) gives explicit ordering guidance, telling the agent to call this before the other 16 tools. It provides a clear usage context but offers no when-not conditions or named alternatives, so it stops short of a 5.

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