update_library_metadata_by_ids

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

The annotations already indicate a non-read-only, idempotent, non-destructive operation, and the description's 'Edit' and PUT are consistent with those. However, the description adds no important behavioral context such as whether args is a partial update or full replacement, what side effects occur, or how multiple IDs are handled.

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 short and front-loaded with no wasted words, but it is under-specified for the open args object and the ids/schema mismatch. It is concise but not sufficiently informative.

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 open-world args object and zero schema description coverage, the description does not give enough information to construct a valid call. It does not explain what fields can be edited, whether args is required, or how the endpoint behaves with multiple IDs, leaving too much unresolved.

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%, so the description must carry the parameter semantics. It says ids is a comma-separated list, but the schema defines ids as an array, which is a misleading mismatch. The args parameter is only described as 'the new values' with no explanation of allowed keys or structure.

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 says 'Edit a metadata item' and gives the PUT endpoint, so the verb and resource are clear. It doesn't explicitly distinguish itself from the many update_library_metadata_by_ids_* siblings, so it slightly lacks differentiation.

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 guidance about when to use this generic edit operation versus the many specialized update_library_metadata_by_ids_* tools. The description provides no context, prerequisites, or exclusions that would help an agent choose correctly.

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