Fritzing Check

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

With no annotations, the description carries the full load and does reasonably well: it enumerates the four validation classes and frames the tool as a blocking gate. It leaves implicit that the operation is read-only and non-mutating, and says nothing about failure reporting, but the output schema absorbs the return-value burden.

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?

Two sentences, dense and front-loaded: the validation criteria come first, then the required-action precondition. No filler whatsoever.

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?

For a validation gate with an output schema present, the description supplies the necessary criteria and the handoff precondition. The only real hole is the meaning of the 'file' input, which a one-clause note would have closed.

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 single 'file' parameter has 0% schema description coverage, so the description must compensate and does not. It never says whether 'file' is a filesystem path, a sketch name, or an ID, nor what format is expected.

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?

States a specific verb (Validate) and resource (a sketch) and enumerates the exact invariants checked, which separates it from the sibling fritzing_validate_part. An agent can tell immediately this is the whole-sketch gate, not a per-part check.

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?

"MUST pass before handing a design off or opening it in the GUI" gives a concrete precondition that pairs with the sibling fritzing_open_gui. It stops short of explicitly naming sibling alternatives or stating what to do on failure, so it is clear context rather than a full when/when-not rule.

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