proto_generate_schema

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

No annotations are present, so the description carries the full burden of behavioral disclosure. It only states the high-level 'generate' action and does not mention file-system writes, required project state, API key conditions, side effects, or whether anything is overwritten.

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 sentence with no wasted words and is front-loaded with the action and object. It is concise, though it carries little informative value beyond the tool name itself.

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 and no annotations, the description leaves the operation opaque: no return behavior, no side-effect disclosure, no required input conditions beyond the schema's required directory, and no differentiation from related proto tools. This is insufficient for an agent to invoke the tool with confidence.

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%, and the schema describes both parameters adequately: 'Project directory' and 'API key for Pro/Enterprise'. The description adds no parameter-level meaning beyond what the schema already provides, so the baseline 3 is appropriate.

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 clear action and object: 'Generate Protocol Buffer definitions,' which maps well to the tool name proto_generate_schema. It is not a tautology and is specific enough to distinguish from unrelated tools, though it does not explicitly differentiate it from proto_generate_services or proto_generate_client.

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?

No guidance is given about when to use this tool versus sibling tools like proto_generate_services or proto_generate_client. An agent must infer usage from the name and generic description; no context, exclusions, or alternatives are provided.

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