PayPls MCP Server

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It describes the tool's function but lacks details on behavioral traits such as whether this operation is read-only or mutative, any authentication requirements, rate limits, or what the output looks like (e.g., address format specifics). This is a significant gap for a tool with no annotation coverage.

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 appropriately sized and front-loaded, consisting of two concise sentences that directly state the tool's purpose and key usage note. There is no wasted text, and every sentence contributes essential information, making it efficient and well-structured.

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 complexity of handling financial transactions and the lack of annotations and output schema, the description is incomplete. It doesn't cover behavioral aspects like safety, permissions, or output details (e.g., what the returned address looks like), which are crucial for a tool involving fund reception. This leaves gaps in understanding how to effectively use the tool in context.

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?

Schema description coverage is 100%, so the schema already documents both parameters (bucket_id and token) with descriptions and defaults. The description adds minimal value by reiterating the need to specify token type for address format, but it doesn't provide additional semantics beyond what the schema offers, such as explaining the implications of bucket selection or token choices in more depth.

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 clearly states the tool's purpose with a specific verb ('Get an address') and resource ('to receive funds into a bucket'), and it specifies the action is for receiving funds. However, it doesn't explicitly differentiate from sibling tools like wallet_send_btc or wallet_send_usdc, which handle sending rather than receiving.

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 implies when to use this tool by mentioning 'Specify token type to get the appropriate address format,' which suggests usage based on token type. However, it doesn't provide explicit guidance on when to use this tool versus alternatives like wallet_balance or wallet_list_buckets, nor does it mention any prerequisites or exclusions.

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