Get Option Chain

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

Annotations already indicate readOnlyHint=true, destructiveHint=false, idempotentHint=true. The description adds value by explaining the normalize parameter's effect on output shape (one row per strike vs raw Saxo OptionSpace shape), which is beyond the annotations.

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 two sentences, front-loading the core purpose and then providing usage context and a parameter explanation. No wasted words.

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?

While the core purpose and usage sequence are covered, the description lacks details on several parameters (expiryDates, strikeCount, clientKey, accountKey, trading) and has no output schema description. Given the tool's moderate complexity, more parameter documentation would improve completeness.

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 0%. The description only explains the normalize parameter and implicitly mentions optionRootId. The other five parameters (expiryDates, strikeCount, clientKey, accountKey, trading) are not described, leaving significant gaps for the user.

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 'Fetch the option chain (strikes + expirations) for an option root' using a specific verb and resource. It distinguishes the tool by explaining the normalize parameter's effect and its role in a sequence with sibling tools (saxo_search_instruments and multi-leg order placement).

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 explicitly states when to use this tool: 'Use this after saxo_search_instruments with assetTypes=[StockOption] to find the Uic of each option leg before placing a multi-leg spread.' This provides clear context and prerequisite, though it does not list when not to use it.

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