kv_key_delete

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

With no annotations provided, the description carries the full burden of behavioral disclosure. It states the destructive action ('Delete') but does not disclose permissions required, whether deletion is reversible, error behavior (e.g., deleting a non-existent key), or any side effects. This is a minimal disclosure for a mutating operation.

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 concise sentence with no redundancy. Every word contributes to clarifying the operation, making it highly efficient and appropriately sized for the tool's simplicity.

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 simple two-parameter delete operation, the description adequately states the core function. However, it omits important context such as return value expectations (e.g., whether it acknowledges deletion of non-existent keys), idempotency, or any prerequisites. Given the lack of annotations and output schema, the description is minimally complete but not thorough.

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?

The input schema already describes both parameters ('Key to delete' and 'KV namespace ID') with 100% coverage. The description adds no additional meaning about parameter formats, relationships, or constraints, so the baseline score of 3 is appropriate.

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 'Delete a key from a KV namespace' uses a specific verb ('Delete') and clearly identifies the resource ('a key') and context ('KV namespace'). This distinguishes it from sibling tools like kv_key_get, kv_key_put, and kv_keys_list, making the operation unambiguous.

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?

The description implies the tool is for removing a key, but it does not explicitly state when to use it versus alternatives, nor does it mention when not to use it (e.g., for bulk operations). The intended usage is clear from the name and description, but no explicit guidance or exclusions are provided.

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