mailkite_remove_suppression

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

Annotations already carry idempotent and destructive hints, but the description adds genuine detail beyond them: the need to URL-encode the email in the path and the requirement of a management session token. It also clarifies the exact no-op success behavior, which makes the idempotency hint concrete. No contradiction with annotations.

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?

The description is three short sentences with no fluff. It front-loads the core action, then adds only high-value operational details: URL-encoding, idempotent no-op behavior, and auth requirement. Every sentence earns its place.

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 single-parameter, no-output-schema operation, this is nearly complete: it covers the required auth context, the URL-encoding nuance, and the key idempotent behavior. The only minor gap is not explicitly describing the expected return/response shape, though 'no-op success' provides a reasonable implication.

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 100%, so the baseline is 3, but the description adds valuable parameter guidance by explicitly requiring URL-encoding of the email in the path. This is a practical semantic detail that the schema alone does not convey.

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 opens with a specific verb and resource: 'Remove an address from the suppression list.' This clearly differentiates the tool from siblings like mailkite_add_suppression and mailkite_list_suppressions without requiring the agent to infer intent from the schema.

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?

The description provides useful context: it requires a management session token and states that removing an unsuppressed address is a no-op. However, it never explicitly names alternatives such as add_suppression or explains when an agent should choose this tool over those siblings, leaving that decision largely implied.

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