list_action

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

Only openWorldHint=true is annotated, so the description carries the full behavioral burden and fails it. It never states that four of the five actions mutate or destroy data, whether delete is irreversible, what permissions or account authorization are required, or what happens to members on delete.

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?

A single compact sentence that front-loads the resource and the operation set with no filler. It is efficient, though it duplicates the enum verbatim rather than earning that space with new information.

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 7-parameter mutation dispatcher with no output schema and low schema coverage, the description omits per-action parameter requirements (e.g. list_id required except create, user only for member actions) and all behavioral caveats. An agent cannot call this safely from the description alone.

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 only 43%, so the description would need to compensate for name, list_id, private, and description. It adds nothing for those fields and only repeats the action values already enumerated in the schema enum.

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 names the resource (X Lists) and enumerates the five operations, which is a clear specific scope beyond the ambiguous name 'list_action'. However, it never distinguishes this tool from the read-side sibling get_lists, leaving the boundary implicit.

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?

There is no when-to-use guidance, no prerequisites, and no mention of alternatives such as get_lists for reading or list_accounts for accounts. The action list is simply a restatement of the schema enum, so an agent gets no routing help.

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