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

With no annotations provided, the description carries the burden of behavioral disclosure. 'List services currently available' implies a read-only, filtered snapshot, which is a useful behavioral trait. However, it does not mention pagination, ordering, or whether authentication is required, leaving some room for ambiguity.

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?

The description is one concise sentence with no filler or redundant phrasing. Every word adds meaning: 'List', 'services', 'currently available', and 'Atinamos Agent Shop' all contribute to scoping the operation.

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 parameterless listing tool with an output schema, the description is nearly complete. It names the resource and scope, but it could be more complete by indicating how it relates to sibling tools like market_search, which likely overlaps in purpose.

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 has zero parameters, so the description doesn't need to document any. The schema coverage is trivially 100%, and the baseline for no-parameter tools is 4.

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 is clear and specific: it uses the verb 'List' with the resource 'services' and a scope qualifier ('currently available from the Atinamos Agent Shop'). It distinguishes itself from get_service and invoke_service by implying a bulk, read-only listing operation, though it does not explicitly differentiate from market_search or market_service.

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?

There is no guidance about when to use this tool instead of the siblings, such as get_service or market_search. The phrase 'currently available' hints at freshness, but no explicit context or exclusions are given, leaving the agent to infer when this is the right tool.

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