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

The annotations already declare readOnlyHint=true and destructiveHint=false, so the safety profile is covered. The description adds only that price and open status are returned, which is return-value context rather than behavioral traits like auth needs, rate limits, or error behavior. Given the annotations, this meets the minimum added-context bar but no more.

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?

One short, front-loaded sentence with no filler. It states purpose, scope, and a hint of return content without wasted words.

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 simple single-parameter read tool with annotations and no output schema, the description covers purpose and two returned fields. It does not explain what happens when the id is not found or give the full return shape, but it is nearly sufficient for an agent to invoke it correctly.

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?

There is a single parameter with 100% schema description coverage, so the schema itself already documents 'the offer id.' The description adds no syntax, format example, or validation detail beyond what the schema provides. This fits the baseline of 3 when schema coverage is high.

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 ('Read one offer') plus scope ('by id') and even names two returned fields. This clearly separates it from siblings like vtessera_get_agent and vtessera_health. However, it never names the closest alternative, vtessera_search_offers, so sibling differentiation is implicit rather than explicit.

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 phrase 'by id' implies the tool is used when an offer id is already known, but there is no explicit when-to-use guidance or when-not-to-use guidance. The sibling vtessera_search_offers, which is the natural alternative for finding offers, is not mentioned at all.

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