insert

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

The description adds one behavioral note: 'Static structures return a standard unsupported response.' This is vague and unexplained; 'static structures' is not defined, and it is unclear whether this is an error or a feature. Without annotations, the description fails to adequately disclose permissions, side effects, or error conditions.

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 very short at two sentences. The first sentence is direct, but the second sentence is cryptic and may confuse rather than help. It could be more concise by removing the second sentence if it is not essential, but overall it is not overly verbose.

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 tool's simplicity (one parameter, no output schema), the description still lacks completeness. It does not explain what the tool returns, whether it modifies state (mutability), or how it interacts with other tools. The cryptic reference to static structures adds uncertainty rather than clarity.

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?

Despite the input schema having 0% description coverage and only an 'x' field, the description clarifies that the parameter is a 'string key.' This adds meaning beyond the schema, which only specifies type string. However, it does not elaborate on allowed values or format, so some ambiguity remains.

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 'Insert one string key,' which clearly indicates the action and the object (one string key). However, it does not specify what the key is inserted into (e.g., a dictionary, set, or other structure), which could cause confusion with sibling tools like 'build' or 'contains' that might also relate to data structures.

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 explicit guidance is provided on when to use this tool versus its siblings (e.g., 'build', 'delete', 'contains'). The description does not mention scenarios or prerequisites, leaving the agent without decision support for alternative tools.

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