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

No annotations are provided, so the description carries the burden. It discloses the auth mechanism (X-API-Key or api_key argument) and the cascade behavior ('related analysis data'), which is valuable. However, it omits that deletion is destructive and irreversible, a critical trait for a delete operation with no annotations to signal it.

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?

Three sentences, front-loaded with the core action and resource. No wasted words. Auth details follow logically. Could be slightly tighter but is well-structured.

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 delete tool with no annotations and no output schema, the description should warn about irreversibility, cascade scope, and any auth errors. It covers auth path but leaves the destructive nature unstated, which is the most important thing an agent needs to know before invoking a delete.

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 100%, so parameters are already documented. The description adds the auth fallback behavior (api_key in arguments when headers aren't supported), which is useful context beyond the schema's terse field description. Baseline 3 is appropriate since the schema does most of the work.

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 verb+resource ('Deletes a code vault') and clarifies the scope includes related analysis data. It distinguishes from get/summary siblings clearly. It does not explicitly differentiate from delete_account or delete_project, but the resource is specific enough to stand apart.

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 when-to-use guidance or caution about irreversibility. The description does not mention alternatives like get_vault or that deletion is permanent, nor does it note prerequisites beyond auth. An agent knows what it does but not when or whether to prefer another tool.

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