check_auth_status

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

No annotations are provided, so the description carries full burden. It mentions retrieving an auth token, but lacks details on behavioral traits such as error handling (e.g., what happens if authentication is incomplete), rate limits, or response format. This is a significant gap for a tool with security implications.

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 a single, efficient sentence that front-loads the core purpose ('check if Plex authentication is complete') and adds necessary detail ('retrieve the auth token'). Every word earns its place with zero waste.

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 tool's moderate complexity (authentication status check) and lack of annotations or output schema, the description is minimally adequate. It covers the basic purpose but misses behavioral details like response format or error conditions, which are important for an auth-related tool.

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?

The schema description coverage is 100%, so the schema documents the single parameter well. The description does not add parameter-specific details beyond what the schema provides, but with only one optional parameter, the baseline is high. No additional semantics are needed.

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 clearly states the tool's purpose with specific verbs ('check' and 'retrieve') and resources ('Plex authentication' and 'auth token'). It distinguishes from sibling tools like 'authenticate_plex' (which likely initiates authentication) and 'clear_auth' (which likely removes authentication).

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 usage context (checking authentication status after initiation), but does not explicitly state when to use this tool versus alternatives like 'authenticate_plex' or 'clear_auth'. No exclusions or prerequisites are mentioned, leaving usage guidance incomplete.

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