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

Annotations already declare the safety profile (readOnly, idempotent, non-destructive, closed-world), so the description's job is to add context beyond that. It does: it discloses what the read returns (current proof, scope, validity, blockers) and that historical versions are immutable, which is meaningful and not restated in the annotations.

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 short sentences with the core action front-loaded and nothing padded. The second sentence, while terse, is somewhat cryptic rather than wasteful, so it costs only a little.

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?

For a read-only, two-parameter tool with full annotation coverage and no output schema, the description usefully enumerates the conceptual return contents. The only shortfall is that it does not compensate for the undocumented claimVersionId parameter.

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 only 50% (claimVersionId has no description at all), and the description supplies no parameter-level meaning for either argument. With the schema carrying half the burden and the prose adding nothing about how to obtain or format claimVersionId, the gap is not compensated.

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 names a specific verb (Read) and a precise resource (an exact version of a business claim produced by the controlled claim workflow), which separates it from the generic sibling helvabase_read_business_claim. The follow-up phrase 'Historical versions remain history' is evocative but does not sharpen the purpose further.

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?

It implies this is the tool for retrieving one specific version rather than the current claim, but it never names an alternative or states an explicit when-not condition. The closing sentence gestures at immutability of past versions without turning that into actionable selection guidance.

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