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

Goes beyond the annotations (which only say idempotent, non-destructive, non-read-only) by disclosing the notice frequency caps (once an hour for payment/balance, at most every 2 hours for GPU offers), the key-scoped blast radius, and the required permission account:notices.

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?

Front-loads the effect of the tool and packs rates, scope, and permissions into three sentences with no filler. Parenthetical asides make it dense but each clause carries information an agent needs.

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?

Covers the prerequisites (free GPU Cloud account + MCP key), permission, scope limitation, and parameter effect. With no output schema and a single boolean input, nothing essential is missing, though the return value is left implicit.

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%, so the description must carry the semantics — and it does, explicitly defining enabled:false as off and enabled:true as on. It compensates for the schema gap, though it cannot say more about a single boolean.

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?

Specific verb+resource: turn GPU Cloud notices on or off via a single boolean. It also scopes the change precisely ('for THIS MCP key only. Changes nothing else'), which no sibling tool does, so an agent can distinguish it immediately.

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?

Explains the context in which notices appear (payment card, low balance, GPU availability) and maps enabled:false/true to off/on, giving clear usage context. It stops short of naming when-not-to-use or an alternative, since no alternative exists.

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