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

Annotations already declare readOnlyHint=false, openWorldHint=true, and destructiveHint=false. The description adds useful output behavior and cost context, including exact receipts, no invented support, and 5 MESH/call. It does not explain why readOnlyHint is false or what side effects, persistence, or audit behavior may occur.

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?

The description is front-loaded with the action and output, then adds supporting behavioral claims. It is reasonably tight for a single-parameter analysis tool, though the last two sentences lean slightly promotional.

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 carries the burden of explaining return values. It does name the verdict categories and receipt-citation behavior, but does not describe the exact response structure. The input schema is generic and the annotations' openWorldHint/readOnlyHint=false context is not fully explained.

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%, so the baseline is 3, but the schema's own input description is generic and even references other capabilities (agent-brain, agent-memory). The tool description usefully clarifies that the payload should contain a claim plus evidence, yet it still does not define exact nested keys or payload structure.

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 function: take one claim plus evidence and return CONFIRMED, REFUTED, or UNVERIFIABLE. The verdict enum and receipt-citation standard make the purpose concrete. It does not explicitly differentiate itself from similar siblings such as refutation-pass, so it stops short of a 5.

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?

Gives a clear input recipe ('one claim plus the evidence — code, a diff, or text'), which implies when to use it. However, it provides no exclusions, no when-not-to-use guidance, and does not name alternative sibling tools for related tasks.

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