put--v3-lists-list_address-members-member_address

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. 'Update' implies a mutation operation, but the description doesn't specify what permissions are required, whether the update is partial or complete, what happens to unspecified fields, or what the response looks like. No rate limits, error conditions, or side effects are mentioned.

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, efficient sentence that states the core purpose without unnecessary words. It's appropriately sized for a tool with this level of complexity and gets straight to the point.

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 6 parameters, no annotations, and no output schema, the description is inadequate. It doesn't explain what 'update' entails operationally, doesn't clarify parameter relationships (e.g., that member_address identifies which member to update), and provides no information about return values or error handling.

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 50% (3 of 6 parameters have descriptions). The description adds no parameter information beyond what's in the schema. The baseline is 3 because the schema provides reasonable coverage for half the parameters, but the description doesn't compensate for the undocumented parameters (list_address, member_address, vars).

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 verb 'Update' and resource 'mailing list member', making the purpose immediately understandable. However, it doesn't differentiate this tool from sibling tools like 'put--v3-lists-list_address' or 'post--v3-lists-list_address-members', which appear to be related list operations.

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 about when to use this tool versus alternatives. The description doesn't mention prerequisites, when this update operation is appropriate versus creating new members, or how it relates to sibling tools like 'get--v3-lists-list_address-members-member_address' (likely for retrieving members).

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