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

Annotations already declare readOnlyHint=true, so the safety profile is covered. The description adds genuinely useful context about what the payload contains (client id, login URLs), but says nothing about permissions required, error behavior for unknown ids, or auth scope.

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, with the purpose and payload contents front-loaded. The trailing endpoint reference ('Kinde: GET /api/v1/applications/{application_id}') is mildly redundant for an agent but aids API mapping without bloating the text.

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?

With no output schema, the description usefully names the key returned fields, and annotations cover the read-only nature. It is adequate for a single-parameter read tool, though it omits error/not-found behavior.

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% for the single application_id parameter, so the schema fully documents it. The description's 'by id' phrasing is consistent but adds no format, source, or constraint detail beyond the schema.

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 specific verb (Fetch), resource (a single application), and lookup key (by id), and it enumerates payload highlights (client id, login URLs). This clearly differentiates it from the sibling kinde_list_applications.

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 phrase 'a single application by id' implies the retrieval-by-identifier use case and contrasts implicitly with the list sibling, but there is no explicit when-to-use, prerequisites, or named alternative. Usage is inferable rather than stated.

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