jane_app_open

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

With no annotations, the description carries the full burden; it does disclose meaningful context that this operates in a "signed-in" browser session, implying authenticated state is reused. It does not say whether opening navigates the existing page or creates a new one, what happens on failure, or what the call returns.

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?

One front-loaded sentence with the verb and default URL early, and no filler. The purpose clause "to work with list appointments and read the wait list" is slightly awkwardly phrased but still earns its place as usage context.

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 one-optional-parameter navigation tool with no output schema, the description covers what is opened and where, which is most of what an agent needs. Remaining gaps (session/tab behavior, sequencing with the other jane_app_* tools) are minor for this complexity level.

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 coverage is 100% and the single optional url parameter is fully documented in the schema, so the baseline is 3. The description merely restates the default value rather than adding format rules (e.g., relative paths, allowed domains) 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 ("Open") and resource ("a Jane App page in your signed-in Cloud Browser"), including the default URL. It implicitly differentiates from siblings like jane_app_click or jane_app_read by being the navigation step, but never names or contrasts them explicitly.

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 trailing clause "to work with list appointments and read the wait list" hints at the motivating scenario, giving implied usage. There is no explicit when-to-use vs when-not guidance (e.g., whether to call this before jane_app_read/jane_app_click, or what to do if a page is already open).

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