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

Annotations already declare destructiveHint=true and readOnlyHint=false, so the safety profile is largely covered. The description adds one useful qualifier — 'permanently' — signaling irreversibility, but says nothing about cascade effects (domains, deployments, env keys), confirmation requirements, or permissions.

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?

A single short sentence with the key qualifier front-loaded alongside the verb. Efficiency is fine, but the brevity is partly under-specification rather than discipline.

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 permanent, destructive operation with no output schema and an undocumented required parameter, the description omits what else is removed, whether it can be undone, and how to identify the project — leaving an agent under-informed before 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 coverage is 0% and the lone parameter, project_id, is undocumented in both schema and description. The description does not say whether it accepts a name, slug, or opaque ID, nor where to obtain it (e.g., from list_projects).

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?

States a specific verb and resource ('Delete a project'), clearly distinguishable from sibling deleters like delete_file and delete_share_link. It stops short of differentiating from related lifecycle tools such as update_project or unpublish_app, but the core purpose 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?

No guidance on when to use this versus alternatives such as unpublish_app or restoring via checkpoints, and no prerequisites or caveats are stated. The agent must infer entirely from the tool name and annotations.

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