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

Annotations already declare readOnlyHint=true and openWorldHint=false; the description reinforces this and adds genuinely new behavioral context by specifying there is no wallet action, no signing, and no chain read, plus a 'FREE' cost signal. It stops short of describing determinism guarantees or the outcome shape of the check.

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 tight sentences with the cost/safety signal front-loaded ('FREE') followed by the scope and the non-effects. Nothing is wasted, though the brevity comes at the cost of the parameter and result detail the tool needs.

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 and the input schema has 0% field description coverage over nested objects, so the description carries the full burden. It never says what a successful or failed inspection returns (verdict, violations, pass/fail) or how policy fields are interpreted, leaving a validation tool's most important contract unstated.

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% and both parameters are nested objects with several undocumented subfields. The description only gestures at 'explicit policy' and 'submit request' without explaining the action/policy split, the meaning of max_amount_wei, exact_staker, allowed_networks, or acknowledge_unconstrained.

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 (inspect), a specific resource (a narrow Ethereum Lido stETH submit request), and the thing it checks against (explicit policy). It is clear what the tool does, but it never distinguishes itself from the sibling observe_staking and preflight_staking, which an agent must choose between.

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?

Implied usage is present: 'against explicit policy' and 'No wallet action, signing, or chain read' tell the agent this is a pure, offline policy check. However, no alternative is named and no when/when-not condition is given relative to observe_staking or preflight_staking, so routing is left to inference.

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