trakt_authenticate

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

Annotations already indicate it is not read-only and has external effects (openWorldHint=true, readOnlyHint=false). The description adds that it 'starts' the OAuth process, which implies user involvement, but does not explain the flow, whether it returns a URL, or how it connects to complete_auth.

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, focused sentence that states the core purpose without any wasted words. It is front-loaded and easily parseable, embodying concise structure.

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 tool in a multi-step OAuth flow with no output schema and external effects, the description is too sparse. It lacks critical context such as expected next steps, return value, or any prerequisite conditions, making it incomplete for an agent to use correctly.

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 only parameter 'state' has a schema description ('Optional state parameter for OAuth flow'), so schema coverage is 100%. The description does not add additional parameter context, resulting in the baseline score for high coverage.

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 action ('Start Trakt.tv OAuth authentication process') with a specific verb and resource. It distinguishes from siblings like trakt_complete_auth and trakt_get_auth_status by implying this is the initial step, though it does not explicitly name alternatives.

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?

No guidance is provided on when to use this tool versus alternatives like trakt_complete_auth or trakt_get_auth_status. It does not mention that this should be called first in the OAuth flow or what the next steps are.

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