Delete a sequence email

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

The annotations already declare destructiveHint=true and idempotentHint=false, so the safety profile is covered. The description adds value beyond that by naming the blast radius ("delivery, audience membership, published data or irreversible state") and the confirm gate, though the hedged "may affect" wording stops short of stating exactly what is destroyed.

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 followed by the risk/precondition. Every clause carries information, though the four-item consequence list is slightly vague rather than crisp.

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, non-idempotent tool with no output schema and a fully documented input schema, the description covers purpose, consequence, and the confirm requirement. It would be stronger if it clarified permanence and effect on subscribers, but the annotations already flag destructiveness.

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 account, confirm, email_id, and sequence_id are all documented in the schema itself, including the caution that confirm should only be set when the user asked for exactly this action. The description only repeats the confirm requirement, adding no new parameter semantics; baseline 3 applies.

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 precise verb+resource ("Delete a sequence email"), which cleanly distinguishes it from siblings like create_sequence_email, update_sequence_email, and get_sequence_email. It does not, however, explicitly differentiate itself from delete_sequence, leaving an agent to infer the containment relationship.

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?

It gives a hard precondition ("Requires confirm=true"), which is genuine usage guidance. But it never says when to prefer this over alternatives such as update_sequence_email, nor does it state when deletion is inappropriate, so the routing guidance is only implied.

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