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

No annotations are present, so the description carries the full behavioral burden. It usefully discloses that restricted connections require approval and that this operation is a read, which is valuable. However, it does not explain pagination behavior, error conditions, or what 'approval' entails, leaving a clear but incomplete picture.

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?

Two sentences with no filler. The core purpose is front-loaded, and the approval caveat is placed second where it adds necessary context without disrupting the main 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?

An output schema exists, but with 7 parameters, no annotations, and zero schema description coverage, the textual description is too sparse. It does not explain the lookup workflow, how restricted approval is triggered, or how the optional parameters shape the call. An agent would likely need external knowledge to invoke this correctly in non-trivial cases.

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%, and the description provides no parameter-level meaning. While names like credential_id, operation, and field are self-explanatory, the tool-specific roles of search, context, and page_token are not explained, so the description fails to compensate for the schema's lack of 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 states a specific action ('Resolve IDs') and resource ('an operation's fields'), and references the lookup schema from credential_operations. It is meaningful but does not contrast it with nearby siblings like load_options or credential_operations, so it earns a 4 rather than 5.

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 explicit guidance on when to use this tool versus related tools such as load_options, search_operations, or call_credential_operation. The mention of 'using the lookup schema from credential_operations' hints at the context, but no alternatives or exclusion conditions are given.

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