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

Annotations already mark this as destructive, so the description does not need to repeat that. It adds a meaningful behavioral detail: 'Nothing is charged for a released spot.' This gives the agent useful side-effect information beyond the annotation hints.

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 terse sentences with no filler. The action is front-loaded, followed by the required inputs and a key side effect. Every sentence contributes value.

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?

Given the modest complexity and the presence of annotations, the description covers what is needed to call the tool: required parameters, where the commitment id comes from, and the no-charge consequence. It does not describe the response format, but for a simple mutation without an output schema this is a minor gap.

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 only 33%, but the description compensates by mapping all three parameters to their meaning: product slug, email that holds the spot, and commitment id from hold or status. It does not give format details, but it provides enough semantic grounding for correct invocation.

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 specific verb and resource: 'Release a held spot.' This clearly conveys the tool's action. It does not explicitly differentiate from sibling tools like leave, but 'release' and 'commitment id from hold or status' make the operation distinct enough.

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 gives clear prerequisites—product slug, email, and commitment id—and indicates the commitment id comes from hold or status. However, it does not explicitly state when to prefer this tool over alternatives such as leave or release-related siblings, so usage is implied rather than fully specified.

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