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

Annotations supply readOnlyHint and idempotentHint, so the safety profile is already covered. The description adds value beyond that by enumerating the possible outcomes (pending, validated, failed, not_found) and mentioning the engine result code, which implies the tool may need to be polled while pending. It does not discuss retry/polling cadence or rate limits, but the return-value disclosure is genuinely additive.

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 sentences, front-loaded with purpose, then workflow and return values. Every clause carries information; nothing is redundant.

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?

There is no output schema, so the description takes on that burden and does so by listing the four status values and the engine result code. Combined with the annotations covering the read-only/idempotent profile, an agent has everything needed to call and interpret this tool.

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% with a single required tx_hash parameter, so the schema already documents the 64-char hex format. The description adds only 'by hash' with no further syntax or format detail beyond the schema. Baseline 3 applies when the schema carries the semantics.

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?

States a specific verb and resource (check validation status of an XRPL transaction by hash) and names the companion tool send_signed_tx whose output it consumes. An agent can distinguish this read-only status probe from sibling tools like get_portfolio or check_order_status 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?

Explicitly says when to use it: 'Use after send_signed_tx to confirm whether the transaction was validated on-ledger.' That is clear situational context. No when-not guidance or alternative tools are named, but the placement in the send-then-verify workflow is unambiguous.

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