Validator staking events

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

Annotations cover the safety profile (readOnlyHint, openWorldHint), so the description's added value is real: it discloses ordering (newest first), the return fields, and a valuable data caveat that the upstream `currency` field reads 'USDC' but staking amounts are actually HYPE. That caveat would otherwise cause misinterpretation of results.

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 the core purpose and ordering before the currency caveat. Dense but every clause (fields returned, ordering, currency trap) earns its place; the field enumeration is slightly listy but useful given no output schema.

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?

With no output schema, the description steps in to enumerate the returned fields (user, amount in HYPE, isUndelegate, tx hash, time ms + ISO), which is exactly what an agent needs. It also flags the currency mislabeling. Minor gap: no pagination/limit behavior beyond what the schema states.

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 the schema already documents limit, fields, and validator. The description only restates that `validator` accepts an address or name, adding nothing beyond the schema; baseline 3 is appropriate.

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 pairing: most recent delegation/undelegation events for one validator, with explicit ordering (newest first). It implicitly separates itself from sibling flowscan_validator_stakers and flowscan_staking_overview by scoping to events rather than stakers or aggregate stats, though it never names those siblings outright.

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 framing 'Staking page validator activity' implies the context in which the tool applies, but there is no explicit when-to-use, when-not-to-use, or named alternative. An agent must infer that this is for per-validator event history versus the staker-list or overview siblings.

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