mailkite_get_sequence

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

Annotations already signal readOnlyHint=true, so the description's main contribution is noting the API key requirement and that the enrollment counts are 'live'. These details go beyond the structured annotations and help set expectations for auth and data freshness.

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 brief and functional, using two short sentences with no wasted words. The primary action is front-loaded and the API key requirement adds useful context, though a slightly tighter structure would be possible.

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 simple one-parameter read operation with robust annotations and full schema coverage, the description provides enough context: what is returned, which resource, and a auth requirement. The lack of an output schema is offset by the explicit mention of the returned data ('definition and live enrollment counts').

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% and the only parameter 'id' is already documented as a path parameter. The description does not add explicit meaning about what the id refers to, though 'Get one sequence' strongly implies it represents a sequence identifier. This is adequate for a single well-documented parameter.

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 clear verb and resource, 'Get one sequence', and specifies what's returned: the definition and live enrollment counts. This distinguishes it from list_sequences, but it does not explicitly name sibling alternatives.

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 implies it is for fetching one specific sequence, but it does not explicitly state when to use this tool over list_sequences or get_enrollment, nor does it mention when not to use it. The guidance is inferred from 'one sequence' rather than stated.

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