unsubscribe_list

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

No annotations are provided, so the description carries the full burden. It only states 'Unsubscribe from a list'—a mutation—without explaining side effects, reversibility, authorization needs, or error states. The description adds minimal behavioral context beyond the action itself.

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 with no wasted words. It is front-loaded and efficient, though it sacrifices detail for brevity. Still, it earns a high score on conciseness alone.

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 the tool has one parameter and an output schema, the description should at least hint at the return value or behavior. It does not. Sibling tool 'subscribe_list' implies symmetry, but missing return info weakens completeness.

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%, yet the description does not explain the sole parameter 'list_id' (e.g., what it represents, how to obtain it). The description adds no value beyond the schema, failing to compensate for the missing parameter documentation.

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 'Unsubscribe from a list' uses a specific verb and resource. It clearly distinguishes from siblings like 'subscribe_list' (opposite) and 'delete_list' (delete the list itself), making the tool's purpose well-defined.

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. While the context of subscribing/unsubscribing is implied, there is no explicit when-to-use, when-not-to-use, or comparison to related tools like 'delete_list' or 'remove_list_member'.

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