Update Label

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

Annotations are absent, so the description carries the full burden of behavioral disclosure. It conveys that an update occurs but does not mention whether the label must already exist, how omitted fields behave, side effects, required permissions, or revertibility. This is thin for a mutation tool.

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 clear sentence with no wasted words and is appropriately front-loaded with the core action. It loses a point for being so terse that it omits useful operational 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 mutation tool with no annotations and no parameter-level schema descriptions, this is incomplete. It does not mention that only 'id' is required, how the optional name/color parameters behave when omitted, or how this update relates to create/delete label operations. The presence of an output schema reduces the need to document return values, but the missing usage and behavior guidance remains significant.

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%, so the description must compensate. It does add meaning by clarifying that 'name' and 'color' are the updateable label attributes, but it does not explain the 'id' parameter beyond implicit reference to a label, nor does it define color format or the meaning of the empty-string defaults.

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 states a specific verb ('Update') and resource ('a label'), and explicitly names the mutable fields: name and/or color. This clearly distinguishes it from sibling tools like create_label, delete_label, and add_label_to_card.

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?

No guidance is given about when to use this tool versus creating or deleting a label. The intended use is only implied by the verb 'Update'; there is no explicit mention of alternatives or exclusion conditions.

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