serpwatcher_assign_tag

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It does not indicate whether the operation is idempotent, what happens if the tag or tracking does not exist, whether existing tag assignments are replaced, or any authentication or side-effect details.

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 sentence with no redundant words, which earns high marks for efficiency. However, it is so sparse that it omits critical operational details, making it more under-specified than appropriately concise.

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 must explain the full operation, but it fails to mention how the tag is specified (likely in the body), whether the tag must pre-exist, or what the response looks like. Given this is a mutation tool with a generic body parameter and rich sibling context, the description is incomplete.

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% for all three parameters, so the baseline is 3. The 'body' parameter is described generically as a raw JSON pass-through, but the description adds no additional meaning or context about what fields the body should contain (e.g., tag_id). The description does not compensate for the schema's lack of specificity.

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 clearly states the action 'Assign' and the resource 'a tag to a SERPWatcher tracking,' making the primary purpose unambiguous. It does not explicitly differentiate from sibling tools like serpwatcher_create_tracking_tag or serpwatcher_unassign_tag, but the verb choice ('assign' vs 'create'/'unassign') provides some distinction.

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 offers no guidance on when to use this tool versus alternatives. With sibling tools such as serpwatcher_create_tracking_tag, serpwatcher_tracking_tags, and serpwatcher_unassign_tag, a clear statement about prerequisites (e.g., 'tag must already exist') or conditions for use is absent.

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