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

Annotations already declare readOnlyHint=true, idempotentHint=true, destructiveHint=false and openWorldHint=false, so safety is covered. The description adds two real behavioral facts: only exact (not partial) match_id values resolve, and results are meant to be compared within the same package content. It says nothing about result volume or what happens when no offers exist.

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 short, front-loaded sentences with no filler: the resource and key come first, the comparison rule second. It is arguably too terse rather than padded, so structure is good but content is thin.

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 single-parameter read tool with rich annotations, the essentials are present. However, with no output schema and no statement of what an 'erbjudande' contains or how the 'paketinnehåll' grouping appears in the response, an agent still cannot anticipate the result shape.

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 one parameter with 0% schema description coverage, so the description has to carry the meaning. It does add value by specifying the value must be an exact match_id taken from search_matches, but gives no format, example, or constraint guidance (the schema caps it at 160 chars) to help construct or validate the value.

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 the resource (erbjudanden/offers) and the precise scoping key (exakt match_id), and explicitly links it to search_matches as the source of that id. It is clearly distinguishable from get_lineup, get_standings and search_matches, though the second sentence about 'paketinnehåll' is a comparison hint rather than a purpose statement.

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 'från search_matches' implies the prerequisite workflow (obtain match_id from search_matches first) and 'exakt' implies a fuzzy/partial id will not work, but there is no explicit when-to-use vs. when-not, nor a stated alternative for broader offer lookups.

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