nt200_create_balance_box_txn

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

With no annotations, the description itself discloses that the tool builds unsigned transactions, may include a payment transaction, and only acts when the box does not already exist. It also reveals the underlying 'ulujs CONTRACT + abi.nt200' dependency, adding behavioral context beyond the schema.

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?

Three short sentences front-load the core purpose and then add necessary behavioral details. No filler or repetition of schema fields.

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 no output schema and no annotations, the description conveys the key facts: the tool returns unsigned transaction(s) for creating a balance box, may include payment, and is conditional on box existence. It could mention the exact return structure, but for a simple txn builder this is adequate.

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 schema covers all four parameters with descriptions (100% coverage), so the description does not need to explain parameter mechanics. It confirms 'specified address' and 'box creation cost' but adds no syntax beyond the schema.

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 names the specific operation ('Build unsigned NT200 createBalanceBox(address) txn(s)') and explains its effect ('Creates a balance box...'), which clearly differentiates it from sibling transaction builders like nt200_withdraw_txn or nt200_deposit_txn.

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?

It states the condition under which this tool is relevant ('if it doesn't exist') and notes that it may include a payment txn for creation cost. It does not explicitly name alternatives or exclusions, but the context is clear enough for selection among the NT200/ARC200 siblings.

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