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

With no annotations, the description carries the full behavioral burden. It usefully discloses data provenance and freshness ('fixed official pages, refreshed daily'), which tells the agent the answer is authoritative and current. It does not state the return shape (e.g., a list of versions mapped to dates) or explicitly confirm the operation is a safe read.

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 sentences, zero filler, and the resource plus its provenance are front-loaded before the usage clause. Every phrase earns its place.

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 zero-parameter informational lookup with no annotations and no output schema, the description covers purpose, provenance, freshness, and usage triggers. The only real gap is that it does not hint at how the dates are organized in the response, which matters slightly given no output schema exists.

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 there is nothing for the description to clarify; the baseline of 4 applies. Schema description coverage is 100% and the empty object schema is self-explanatory.

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 a specific resource (Umbraco support and Umbraco Cloud end-of-service dates) and its source (fixed official pages, refreshed daily), which is far more informative than the tool name alone. It lacks an explicit action verb, but an agent can immediately tell what data it gets. None of the siblings overlap with this resource, so differentiation is not a concern.

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 explicit when-to-use conditions: 'questions about Umbraco version support, end-of-life or Umbraco Cloud hosting deadlines.' That is clear routing guidance for the agent. It names no alternative tool, but no sibling covers the same subject matter, so no exclusion is needed.

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