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

With no annotations, the description does disclose two important behaviors: API-key auth on the MCP connection and cross-org IDs reading as not found. However, it does not state that deletion is irreversible, whether confirmation is required, or what the deletion returns, so it does not fully carry the behavioral burden for a destructive operation.

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 tight sentences, front-loaded with the action and with the auth/error constraints following. No repetition or filler.

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 one-parameter delete tool with no output schema and no annotations, the description covers the key invocation constraints: required API key, org-scoped IDs, and not-found behavior for cross-org IDs. The main omission is irreversibility/return behavior, which keeps it from a 5.

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 already 100%, so baseline is 3; the description adds meaningful org-scoping semantics for alert_id by saying another org's ID reads as not found. It still does not add format/type details, but those are in the schema.

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?

Names the specific verb (delete) and resource (budget-spend alerts) and scopes it to the caller's org and an ID. That is enough to distinguish it from delete_price_alert (price alerts) and from list/register budget-alert tools.

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 explicit when-to-use guidance, no when-not-to-use, and no named alternative for obtaining the ID or for price-alert deletion. The agent must infer usage from the tool name and schema.

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