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

With no annotations, the description carries the burden of behavioral disclosure. 'Fetch' implies a read-only, non-destructive operation, and the added org-only constraint is a useful behavioral detail. It doesn't mention potential errors or return format, but for a simple fetch these are minor gaps.

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?

A single, front-loaded sentence with no filler. Every piece of information (action, resource, identifier options, org scope) is essential and efficiently presented.

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 low-complexity tool with only two optional parameters and no output schema, the description covers the essentials: what it does, how to identify the target, and the scope restriction. It doesn't explain return structure, but that's often inferred for a fetch operation, so it's adequate.

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 has 0% description coverage, so the description must define the parameters. It states that the tool can fetch by id or by trace_id, which maps to verdict_id and trace_id, but it doesn't clarify whether one is required, if both are allowed, or precedence rules. This is partial compensation for the missing schema descriptions.

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 states a specific verb (Fetch) and a specific resource (previously produced verdict), and distinguishes it by offering two identifier options (id or trace_id) plus an org-only scope. It avoids tautology and is instantly distinguishable from the sibling diagnostic tools.

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 context of use is clear: when you have a verdict id or trace_id and want to retrieve a prior verdict. It doesn't explicitly name alternatives, but none of the siblings serve exactly this purpose, so the implied usage is sufficient. It lacks explicit when-not-to-use phrasing, lowering it from a 5.

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