validate_transaction

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

With no annotations, the description must disclose behavior fully. It offers only a hint that the result is 'the same bounded preview metadata', but does not state whether the operation is read-only, validates without side effects, how errors are reported, or any authentication needs. The minimal information fails to provide transparency about side effects or constraints.

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 a single, concise sentence and is front-loaded with the verb. However, it is under-specified, sacrificing clarity for brevity. It does not earn its place fully because it omits critical information, so a middling score is appropriate.

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 an output schema exists, the description lacks essential context: it does not explain the parameter, when to use the tool, or any behavioral caveats. For a transaction-related tool amidst many similar siblings, this is insufficient for reliable selection and invocation.

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?

The schema has 0% description coverage and the description does not mention the 'txid' parameter at all. The agent is left to guess what a 'txid' is and how it should be formatted, which is inadequate for a required parameter.

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 ('Validate') and the resource ('staged operations'), with a specific outcome ('return the same bounded preview metadata'). It distinguishes from sibling tools by referring to 'staged operations', but does not explicitly contrast with preview_transaction, so it falls short of a 5.

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 usage on staged operations but provides no explicit guidance on when to use this tool instead of preview_transaction, commit_transaction, or other validators. No alternatives are mentioned, and no prerequisites or context are given.

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