Aptly MCP Server

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

With no annotations provided, the description carries the full burden of behavioral disclosure but only states the basic action. It doesn't cover important traits such as whether the list is paginated, sorted, or includes metadata; if it requires specific permissions; or what the output format looks like (e.g., JSON, plain text). This leaves significant gaps for a tool that likely returns structured data.

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 a single, clear sentence with no wasted words, making it highly concise and front-loaded. It efficiently communicates the core purpose without unnecessary elaboration, which is appropriate for a simple listing tool.

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?

Given the lack of annotations and output schema, the description is incomplete for a tool that likely returns a list of mirrors. It doesn't explain the return format, potential limitations (e.g., large result sets), or behavioral aspects like error handling. For a read operation with no structured output documentation, more context is needed to guide effective use.

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 0 parameters, and the input schema has 100% description coverage (though empty). The description doesn't need to add parameter details, so it meets the baseline of 4 for zero-parameter tools. No additional semantic value is required or provided beyond the implied scope of 'all configured mirrors'.

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 'List all configured mirrors' clearly states the verb ('List') and resource ('configured mirrors'), making the tool's purpose immediately understandable. However, it doesn't explicitly differentiate from sibling tools like 'aptly_get_mirror' (which likely retrieves details of a specific mirror) or 'aptly_list_repos' (which lists repositories rather than mirrors), missing full sibling distinction.

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 description provides no guidance on when to use this tool versus alternatives. It doesn't mention scenarios where listing mirrors is appropriate (e.g., for inventory or selection purposes) or contrast it with tools like 'aptly_get_mirror' for detailed views or 'aptly_update_mirror' for modifications, leaving usage context implied at best.

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