Decode raw Protobuf

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

With no annotations provided, the description carries the disclosure burden. It reveals the recursive nature of the decoding and the schema-less operation, which are meaningful behavioral traits. However, it does not mention output format, error behavior, or the resource limits implied by maxDepth and maxFields, leaving significant transparency 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?

The description is a single, front-loaded sentence with no wasted words. However, it is under-specified for a tool with three parameters, no output schema, and no annotations. The brevity comes at the cost of necessary detail, making it not fully appropriately sized.

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 an output schema, annotations, and parameter descriptions, the one-sentence description is far from complete. It does not clarify what the decoded result looks like, how maxDepth/maxFields constrain recursion, or any limits/fallbacks. More context is needed for an agent to invoke this tool correctly and interpret its result.

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%, so the description must compensate. It only hints at dataBase64 via 'base64 input' but does not explain the purpose or effect of maxDepth or maxFields. Two of three parameters are left completely undocumented, providing minimal semantic value beyond the schema itself.

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 uses a specific verb ('decode'), a clear resource ('schema-less Protobuf wire fields'), and specifies the input format ('base64'). 'Schema-less' distinguishes it from schema-based proto tools like proto_export_schema or proto_infer_fields, making the purpose unmistakable.

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 implies usage when you have base64-encoded protobuf data without a schema, but it does not explicitly state when to use this over alternatives like proto_auto_detect or proto_infer_fields. No when-not-to-use or exclusion list is provided, leaving guidelines implied rather than explicit.

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