watchAuction

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

With no annotations provided, the description carries the full burden of behavioral disclosure. It only states the action and includes a link to an API reference, but does not mention side effects, idempotency, authorization requirements, return format, or whether the watch state is being toggled or set absolutely. This is a significant gap for a mutating operation.

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 concise phrase that states the core action immediately. It does not waste words, though the appended API reference link is not elaborated. It is appropriately sized for a simple tool, but arguably too terse given the lack of other structured context.

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 tool with no output schema, no annotations, and no behavioral context, the description is too sparse. An agent lacks information about what happens after calling, whether there are prerequisites (e.g., being logged in), or how to interpret success/failure. The API reference link provides a pointer but not inline completeness.

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 100%, so the input schema already documents the 'watch' flag and 'auctionId'. The description adds no additional meaning or context beyond the schema, so the baseline score of 3 applies. The API reference link is not parameter-specific.

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 'Watch or unwatch an auction' clearly identifies the verb (watch/unwatch), the resource (auction), and the dual nature of the action. It distinguishes this tool from siblings like bidAuction, buyNowAuction, and viewAuction by specifying the watch action specifically.

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: use this tool when you want to watch or unwatch an auction. However, it provides no explicit guidance on when to prefer this over related auction tools, no exclusions, and no context about typical call scenarios. The usage is inferred from the verb rather than stated.

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