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

Annotations already declare readOnlyHint=false and destructiveHint=true, so the safety profile is supplied. The description's added value is the word "permanently," clarifying that this bypasses trash rather than soft-deleting, but it says nothing about required permissions, effect on shared collaborators, or whether the file is recoverable.

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?

Two short sentences, front-loaded with the action and immediately followed by the consequence. Nothing is padded, though stating the permanence in the same sentence would be marginally tighter.

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 two-parameter destructive tool with full schema coverage and clear annotations, the description covers what is deleted and that it is permanent, which is adequate. It omits permission requirements and the reversible alternative, which an agent should reasonably know before issuing an irreversible call.

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 both spreadsheet_id and the optional account parameter are already documented in the schema. The description adds no further meaning about parameter semantics, which is the expected baseline when the schema does 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 names a specific verb and resource ("Delete a Google Sheets spreadsheet") and scopes it as a whole-file deletion from Drive, which distinguishes it implicitly from the sibling sheets_delete_tab. It stops short of naming the sibling or the narrower alternatives (drive_trash_file, docs_delete), so differentiation is inferable rather than explicit.

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 by the delete verb; there is no when-to-use/when-not guidance, no statement of prerequisites such as ownership or edit permission, and no pointer to the recoverable alternative (drive_trash_file) versus this permanent removal. An agent can infer intent from the name but gets no routing help.

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