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

No annotations are provided, so the description carries the full disclosure burden. It clearly states the side effect (credits your balance), the read behavior (reads matching transfer), and idempotency. Could also mention whether it requires authentication beyond api_key, but the main behavioral traits are well disclosed.

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?

Well structured with front-loaded purpose, critical behavioral info (idempotent, polling interval), prerequisite, and alternatives. Slight redundancy from the Vietnamese repetition, but it is compact and each English sentence earns its place.

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?

No annotations and no output schema, yet the description covers the key operational facts: what it does, when to use, the prerequisite ID, idempotency, and polling interval. It does not describe the return payload, but for a poll-like verify operation the core guidance is present.

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 coverage is 100%, with both parameters described. The description repeats the origin of merchant_trade_no (from create_binance_deposit) which slightly reinforces semantics but adds no new detail beyond schema. Baseline 3 is appropriate.

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 identifies the operation: checking/confirming a Binance deposit created by create_binance_deposithol, and credits balance when matched. It distinguishes itself from verify_usdt_deposit by name in the WHEN TO USE guidance, so an agent can tell them apart without opening the schema.

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?

Explicitly says when to use it ('after the user has paid via Binance Pay'), mentions polling cadence (~12s), and names the alternative for USDT (verify_usdt_deposit) plus balance inspection afterwards. This is actionable routing guidance.

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