Validate a BeamNG mod

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

The annotations already declare readOnlyHint=true, and the description adds 'statically' which clarifies that it analyzes files without executing the game. This is valuable behavioral context beyond the annotation. It also lists the validation targets, giving insight into what is checked. No contradictions with annotations are present.

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, highly concise and front-loaded with the verb. It contains no redundant words. However, it omits important contextual details that a second sentence could address without significant bloat. It is efficient but slightly under-specified for the tool's complexity.

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 three parameters, no output schema, and only the readOnlyHint annotation, the description leaves significant gaps. It does not describe what the tool returns, how to interpret results, or how parameters affect validation. The static validation scope is listed, but return behavior and usage conditions are absent, making the tool difficult to use correctly without external documentation.

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?

The schema has 0% description coverage, and the description does not define any of the three parameters (root, strict, profile). It does not explain that root is the mod path, strict controls validation strictness, or the meaning of the profile enum. The description lists validation areas but not how parameters modify behavior, so it fails to compensate for the schema gaps.

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 'validate' and enumerates the validation scope (mod structure, JBeam/JSON/materials, metadata, paths, references), clearly distinguishing from sibling tools like beamng_mod_scaffold or beamng_mod_package. It clearly states what the tool does and what it covers.

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 explicit guidance is given on when to use this tool versus alternatives. The verb 'validate' implies it is for checking existing mods, and the sibling tool names suggest the broader workflow, but the description does not state exclusions or name specific alternatives. Usage is only implied through the purpose.

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