bnbchain-mcp

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

With no annotations provided, the description carries full burden but only mentions that ERC1155 allows multiple tokens per ID. It doesn't disclose behavioral traits like rate limits, authentication needs, error conditions, or what the return value looks like (e.g., numeric balance, format). This leaves significant gaps for a tool that queries blockchain 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 perfectly concise with two sentences that directly explain the tool's purpose and a key characteristic of ERC1155 tokens. Every word earns its place with zero wasted information.

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 read-only query tool with full schema coverage but no annotations or output schema, the description is minimally adequate. It explains what the tool does but lacks important context about return format, error handling, and network behavior that would help an agent use 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?

Schema description coverage is 100%, so the schema already fully documents all 4 parameters. The description adds no additional parameter semantics beyond what's in the schema, meeting the baseline of 3 when schema does the heavy lifting.

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 specific action ('Get the balance') and resource ('ERC1155 token ID owned by an address'), distinguishing it from sibling tools like 'get_erc20_balance' and 'get_nft_balance' by specifying the ERC1155 token standard. It also explains the unique characteristic of ERC1155 tokens allowing multiple copies of the same ID.

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 like 'get_nft_balance' or 'check_nft_ownership', nor does it mention prerequisites or exclusions. It simply describes what the tool does without contextual usage instructions.

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