Update Label

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

Annotations already indicate the tool modifies data (readOnlyHint=false) and is not idempotent. The description adds no further behavioral detail, such as permissions required, side effects on associated issues, or limit considerations. For a mutation tool, more transparency is expected.

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 sentence, making it concise but overly terse. It is front-loaded but lacks substance, failing to convey essential information. Every word is minimal but not sufficiently informative.

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?

Given 7 parameters, no output schema, and numerous sibling tools, the description is severely incomplete. It omits prerequisites (e.g., label_id or project_id), return value, and effect on existing labels. An agent would struggle to use this tool correctly.

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?

The input schema has 7 parameters with 0% coverage (no descriptions). The description does not compensate, failing to explain common parameters like 'name', 'color', 'label_id', or 'project_id'. An agent cannot infer parameter semantics from the description alone.

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 the verb 'Update' and the resource 'label', clearly conveying the primary action. It effectively distinguishes this tool from siblings like 'gitlab_create_label' and 'gitlab_delete_label', but could further specify the scope of updates.

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 on when to use this tool versus alternatives (e.g., gitlab_create_label to modify attributes, or gitlab_update_issue for issue labels). The description offers no contextual advice for tool selection.

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