pine_session_url

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

No annotations are provided, so the description carries full burden. It states 'Get the web URL' implying a read operation, but does not disclose behavioral traits such as whether the session must be active, whether the URL expires, or any authentication requirements. The description lacks sufficient behavioral context.

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 two sentences long with no fluff. The first sentence clearly states the primary function, and the second adds usage context. It is front-loaded and every word earns its place.

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 that an output schema exists (so return values are documented elsewhere) and the tool is simple with one parameter, the description provides the core purpose and usage context. However, it could be more complete by mentioning that the URL is specifically for the session identified by session_id, but overall it is adequate for a basic 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 input schema has 0% description coverage for the single parameter 'session_id'. The tool description does not add any meaning beyond the parameter name; it fails to explain what constitutes a valid session_id, its format, or scope. With no schema description and no additional context in the description, the agent has insufficient information to correctly provide the parameter.

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 'Get the web URL for a session' using a specific verb ('Get') and resource ('web URL for a session'). It distinguishes from siblings like pine_session_get (returns session details) and pine_session_create (creates a session) by focusing on URL retrieval. Additionally, it provides context on sharing for tracking/payments/credits.

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 the tool (to obtain and share a session URL), but does not explicitly state when not to use it or mention alternatives among siblings such as pine_session_get for retrieving full session details. Guidance is implied rather than explicit.

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