validate_kit

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

Annotations already declare the full safety profile (readOnlyHint=true, idempotentHint=true, destructiveHint=false), so the description carries little burden there. It adds that failures are reported as 'the problems to fix' rather than raising, which is useful, but says nothing about the format source or severity semantics.

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 short sentences, front-loaded with the operation before the result shape. Slightly redundant to restate the return value when an output schema exists, but there is no filler.

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?

The tool is simple (one parameter, an output schema, rich annotations), so the description is nearly sufficient. It leaves the string-vs-object input form unexplained and gives no hint about what 'the format' refers to, likely get_kit_spec, which an agent would need to know before calling it.

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 single parameter has no documented meaning. The description calls it 'a kit object', which is helpful but also narrower than the schema, which accepts either an object or a string (presumably an inline kit or a reference/id); that ambiguity is never resolved.

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 (check/validate) and resource (a kit object against the format), so the agent knows this is a validation call rather than a fetch or render. It does not differentiate itself from neighbors like get_kit_spec or preview_kit, which also touch kit correctness, so it stops short of a 5.

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?

There is no when-to-use guidance: nothing says whether this runs before export_kit, replaces preview_kit, or what to do when it reports problems. The agent must infer the place of validation in the workflow from the tool name alone.

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