update_list_target

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

With no annotations, the description carries the full burden of explaining behavior. It merely says 'Update an existing list target' without disclosing whether it performs a partial or full update, what happens if the ID doesn't exist, or any side effects. This is insufficient 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 extremely short and to the point, with no wasted words. It is front-loaded with the verb and resource. However, it is so terse that it omits useful context, though conciseness itself is well-handled.

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 output schema, the description is too minimal. It doesn't mention which fields can be modified (label, data_list, inclusive), whether the update is partial or full, or any behavioral outcomes. The schema helps, but the description fails to provide operational context needed for confident invocation.

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 provides descriptions for all 4 parameters, and coverage is 100%, so the schema already documents them well. The description adds no extra semantic meaning about parameters, but since the schema is complete, a baseline score of 3 is appropriate.

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 ('Update') and resource ('list target'), and the word 'existing' distinguishes it from creation tools like create_list_target. However, it lacks specifics about what aspects of the list target can be updated, so it doesn't fully differentiate from other update_* tools in the sibling list.

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 such as create_list_target or delete_list_target. There is no mention of prerequisites, typical scenarios, or exclusion criteria.

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