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

Annotations indicate destructiveHint=true and readOnlyHint=false, so the agent is warned that this is a mutating operationhol, but the description adds crucial context: it explicitly states it does not sign or submit to the buyer. This provides clarity on the side effects of the operation beyond the annotations. However, it doesn't disclose what happens after confirmation (e.g., does it persist data?) or any irreversible effects, leaving some behavioral questions unanswered.

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 two short sentences. The first sentence states the action and requirement, the second warns against misuse. Every word is purposeful, no fluff. The critical warning is front-loaded and easy to parse.

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?

Given the tool's complexity (7 required params, nested objects), the description is highly effective in conveying the core purpose and the most critical constraint (the code). It does not detail the document structure, but the schema provides that, and the description's focus on the 'exact complete pack' hints at the need for completeness. The lack of output schema is not an issue as the description clarifies the action's non-signing side effect. Overall, it covers the essential decision-making information.

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 extremely low (14%), with only idempotencyKey having a description. The description itself does not explain individual parameters, but it emphasizes the critical meaning of 'code' – that it must come from the final reviewer and not be reused from other contexts – which is essential for correct usage. Given the low coverageional overload, the description compensates by highlighting the most error-prone parameter. However, it doesn't explain the 'documents' array structure or 'selection' semantics, which might be inferred from siblings but are not explicitly addressed.

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 states a specific verb ('Confirm'), the resource ('exact complete pack'), and the required authorization ('final reviewer's explicitly supplied code'). It explicitly distinguishes itself from the sibling 'helvabase_confirm_plan_agreement' by noting it is not a plan agreement and from 'helvabase_confirm_review' by stating it does not sign or submit. This clearly separates it from similar confirmation 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 description provides explicit guidance: 'Never reuse a plan-agreement or individual-file code' – this tells the agent when NOT to use this tool. It also implicitly implies it should only be used when the final reviewer has supplied a code. The exclusion of signing/submitting clarifies that this step is for internal confirmation, not for finalization, which helps the agent decide between this and other confirmation steps.

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