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

Annotations already indicate this is a non-read-only, non-destructive, non-open-world operation. The description adds important behavioral context beyond the annotations: it requires an org API key with the applications:write scope, mandates a decline reason when status is declined, and explicitly clarifies that it does not delete the application. It does not address transition rules or idempotency, so it is strong but not exhaustive.

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 four short sentences with no wasted words. It front-loads the core action, then adds permission, conditional logic, and non-deletion clarification in a logical order. Every sentence contributes useful information.

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?

The tool has an output schema and annotations, so return values and safety hints need not be explained in the description. The description covers authorization, the key conditional requirement, and the non-destructive nature of the operation. It could be more complete by mentioning valid status transition constraints or side effects, but it is sufficient for correct invocation.

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 67%, so the schema already documents id and declineReason to some extent, and the status enum values are self-describing. The description adds meaningful conditional semantics for declineReason when the status is declined, which is not fully captured by the schema. It does not add further detail about the id parameter or status transition meaning beyond the enum.

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: setting an application's status. It also scopes the operation to the authenticated organization, which distinguishes it from sibling tools like get_application and update_form. An agent can identify exactly what this tool does without opening 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 implies when to use it by explaining it writes status and does not delete the application. However, it does not name a specific alternative tool or state clear conditions for choosing this tool over siblings such as get_application or update_form. The guidance is useful but not comprehensive.

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