osint_ean_upc_validator

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

No annotations are provided, and the description only lists actions (validate, generate, decode) without disclosing behavioral traits such as idempotency, side effects, or requirements. It lacks transparency about whether the tool makes external calls or requires permissions.

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 includes redundant elements like the Menu ID and a pointer to describe_tool. It is moderately concise but could be more streamlined by removing unnecessary phrases.

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 absence of output schema, annotations, and parameter explanations, the description is insufficient for an agent to use the tool effectively. It does not cover return values, parameter formats, or typical usage scenarios.

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 the description does not explain the purpose or allowed values of the 'code' and 'mode' parameters. Users must guess what 'mode' entails, which severely hinders correct invocation.

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 the tool validates EAN/UPC barcodes, generates check digits, and decodes information. However, it does not explicitly differentiate from sibling tools like osint_barcode_scanner or osint_barcode_generator, which could cause confusion.

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 no guidance on when to use this tool versus alternatives. The suggestion to use describe_tool for full guidance indicates incomplete information here.

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