place_limit_order

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

With no annotations, the description carries the full burden. It explains the fill condition and that an order is created, but omits order lifecycle details (e.g., order stays open until filled or cancelled, funds reservation, cancellation mechanism) and potential risks.

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?

Two concise sentences that front-load the verb and resource. No redundant information, and the parenthetical 'set your own rate' adds useful clarification without bloat.

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?

The description captures the core behavior but is under-specified for a financial tool with no annotations and no output schema. It does not mention order expiration, how to track the order, or what happens to funds while the order is open.

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 parameters are already documented. The description adds minimal semantic value beyond the schema, only reinforcing that 'price' is your desired rate.

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 action: placing a limit order, and clarifies the mechanism (set your own rate, filled when market reaches your price). This distinguishes it from market-order/swap tools among siblings.

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 use when you want to set a specific rate and wait for the market to reach it, providing clear context. It does not explicitly name alternatives or when-not-to-use, but the context is strong enough to guide selection.

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