createTransaction

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

No annotations are provided, so the description must convey behavioral traits. It only states that scheduled transactions cannot be created, but omits other important behaviors such as return value, error handling, duplicate detection, or side effects. This is insufficient for a creation tool.

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 three sentences, front-loaded with the main action, and each sentence adds essential information without redundancy. It is efficient and easy to parse.

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 the tool's complexity (3 parameters, no output schema), the description is incomplete. It does not cover required fields for a transaction (e.g., account_id, amount, date), defaults, or what the response contains. An agent would need to rely heavily on the schema, but the description should provide more context for a creation operation.

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 only 33%, so the description should compensate by explaining key parameters. It mentions the `transaction` and `transactions` parameters but does not explain `plan_id` or any field details beyond what is in the schema. The description adds little semantic value beyond distinguishing single vs bulk.

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 it creates single or multiple transactions, distinguishing between providing a `transaction` object vs a `transactions` array. It also explicitly excludes scheduled transactions, which differentiates it from sibling tools like createScheduledTransaction.

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 gives guidance on when to use the single vs multiple transaction modes and notes that scheduled transactions are not allowed. However, it does not mention alternatives or when to use other creation tools (e.g., importTransactions, updateTransaction), leaving some ambiguity.

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