update_tag

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, and 'Rename a tag' only states the action. It does not mention whether the change is reversible, whether it affects objects already using the tag, or how conflicts are handled. This is a minimal mutation description with no additional behavioral context.

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, front-loaded sentence with zero filler, which is efficient. It is slightly under-specified for context, but as a concise statement of purpose it earns a high score.

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 simple two-parameter tool with no output schema, the description and schema together are minimally sufficient to identify the operation and its inputs. However, the lack of any usage or behavioral context leaves the definition incomplete for an agent deciding whether this operation is safe or appropriate.

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%, and the schema already documents id as 'Tag id' and label as 'New tag label'. The description adds no further parameter semantics, so the baseline of 3 applies.

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, 'Rename', with a clear resource, 'a tag', and directly differentiates the tool from siblings like create_tag, delete_tag, list_tags, and list_tag_details. Even without a title, the agent can infer this mutates an existing tag's label.

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 gives no guidance on when to use this tool versus alternatives like create_tag or delete_tag, and no context about prerequisites or consequences. There are no exclusions or routing hints, so the agent must rely on the name alone.

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