rename_key

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

No annotations are provided, so the description carries full burden. It fails to disclose critical behaviors: whether the operation is atomic, what happens if the new key already exists, or any failure conditions. The description is silent on all behavioral aspects.

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 extremely short, but this is under-specification rather than conciseness. It lacks essential information and does not follow a structure that front-loads useful details. Every sentence is present but uninformative.

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 absence of an output schema, annotations, and the presence of many sibling tools, the description is woefully incomplete. It does not explain return values, side effects, or how it fits into the broader toolset. A mutation tool requires far more detail.

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 coverage is 0% with no parameter descriptions. The description adds zero semantic value beyond the parameter names 'key' and 'newKey'. It does not clarify allowed formats, constraints, or relationships between parameters.

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 'Rename a key' is a tautology. It restates the tool name without specifying what kind of key (e.g., Redis key) or adding any distinguishing context. Among sibling tools like 'delete_key' or 'set_string', there is no 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?

No usage guidance is provided. The description does not indicate when to use this tool instead of alternatives like deleting and re-creating a key, or how it interacts with other operations. No when/why context.

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