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

Annotations already declare destructiveHint=true, idempotentHint=true, and readOnlyHint=false, so the safety profile is covered. The description usefully adds behavior annotations do not carry: servers already created retain the key after deletion, and the call requires the ssh_keys:write permission. This is exactly the kind of non-obvious consequence an agent should know.

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?

One tightly written sentence with the consequence-of-deletion fact front-loaded, followed by a compact permission note and account prerequisite. No padding, though the bracketed account/MCP-key boilerplate is generic rather than tool-specific.

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 destructive single-parameter delete, the description covers the operation, its side effect on existing servers, the required permission, and the account prerequisite, which is reasonable coverage given the annotations. The main gap is the unaddressed keyId parameter, leaving an agent unclear on how to obtain a valid value.

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 only parameter, keyId, is never mentioned in the description. With a required 1-parameter tool and no schema docs, the description should compensate by explaining where the keyId comes from (e.g., gpucloud_list_ssh_keys) or its format, and it does not.

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 and resource ('Removes an SSH public key from the account'), which cleanly separates it from siblings like gpucloud_add_ssh_key, gpucloud_generate_ssh_key, and gpucloud_list_ssh_keys. It does not explicitly name an alternative, but the verb/resource pair is 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?

Usage is only implied – an agent can infer this is the tool to revoke a stored key, and the parenthetical clarifies a side effect. There is no explicit statement of when to use this versus generate_ssh_key or add_ssh_key, nor any prerequisite ordering guidance.

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