add_node_label

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

With no annotations provided, the description carries full burden for behavioral disclosure. It mentions the tool modifies a node and returns JSON, but doesn't address critical aspects like whether this requires admin permissions, if it's idempotent, potential side effects, or error conditions. This is inadequate 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 efficiently structured with a clear purpose statement followed by parameter documentation. Every sentence serves a purpose with zero waste, and information is appropriately front-loaded.

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 Kubernetes node mutation tool with no annotations and no output schema, the description provides basic parameter documentation but lacks important context about permissions, side effects, and error handling. It's minimally viable but has clear gaps for a tool that modifies infrastructure.

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%, but the description compensates well by documenting all 4 parameters with clear explanations of what each represents. The Args section adds meaningful context beyond the bare schema, though it doesn't provide format examples or constraints.

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 ('Add or update a label') and target resource ('to a node'), providing specific verb+resource. However, it doesn't explicitly differentiate from sibling tools like 'remove_node_label' or 'add_node_taint', which prevents a perfect score.

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 provided on when to use this tool versus alternatives like 'remove_node_label' or 'add_node_taint'. The description lacks context about prerequisites, permissions needed, or typical use cases for labeling nodes in Kubernetes.

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