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

Beyond the annotations (which only say it is a non-destructive write in an open world), the description discloses rate-limiter accounting (one write credit regardless of batch size), partial-success semantics, the per-result `error` field, CLORDID_CONFLICT on divergent economics, and the wallet-proof requirement. These are exactly the operational facts an agent needs before firing a 50-order batch.

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?

Four tight sentences, front-loaded with the batch cap and rate-credit fact, then prerequisite, then failure model. Nothing is padding; every clause carries operative 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?

With an output schema present it correctly omits return-value descriptions while flagging the `error` field that matters, and the proof/key prerequisites are covered by the schema. The only shortfall is that it does not point to the sibling tool that produces pre-signed orders, which is the natural upstream step.

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%, so the baseline is 3; the description nonetheless adds meaning by tying orderSignature/nonce presence to batch mode and mapping clOrdId behavior to the CLORDID_CONFLICT result. It does not go further into per-order field semantics, which the schema already handles in 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 opens with a specific verb, resource and batch scope ('Place up to 50 pre-signed limit orders in one call'), and the 'pre-signed / no signing-payload return path in batch mode' clause implicitly separates it from the singular place_limit_order and from prepare-order siblings. An agent can identify the tool's role 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?

It states the key precondition (orders must already be signed with nonce) and implies that preparation happens elsewhere, since batch mode returns no signing payload. It does not explicitly name the alternative tools (batch_prepare_orders, place_limit_order) or state when a single order or the prepare path should be chosen instead.

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