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

Annotations already declare destructiveHint=true, so the safety profile is covered structurally. The description adds no behavioral context beyond that: it does not say what happens if the key already exists, whether the call is idempotent, what auth is required, or what the response contains.

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, front-loaded sentences with no filler. The trailing 'Kinde: POST /api/v1/permissions' is mildly redundant with the name/title but is cheap and informative.

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 3-parameter create tool with full schema coverage and no output schema, this is minimally adequate. However, it omits any mention of duplicate-key behavior or state effects, which matters given the destructiveHint annotation.

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%, so key, name, and description are fully documented in the schema (including the note that key is used in tokens). The description adds nothing about these parameters, so the baseline of 3 applies.

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 ('Create a permission'), explains what the entity is for ('that roles and users can hold'), and appends the backing endpoint. It is clearly distinguishable from siblings such as kinde_create_role and kinde_list_permissions, though it does not explicitly call out those neighbors.

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?

There is no guidance on when to use this tool versus alternatives like kinde_grant_user_permission_in_organization, nor any stated prerequisites or exclusions. Usage is only loosely implied by the tool name and verb.

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