udemy_open

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

No annotations are supplied, so the description carries the full behavioral burden; it does disclose that the page opens in a signed-in Cloud Browser, which is genuinely useful auth/session context. However, it never says whether an already-open session is reused or navigated away, whether existing page state is lost, or what happens on invalid URLs.

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?

It is a single sentence, so length is fine, but the second half ("to work with create coupons and update courses") is garbled and adds confusion rather than information. The useful scoping detail is front-loaded, but the sentence does not fully earn its words.

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 the entry-point tool in a browser-automation family (open/close/read/click/type), an agent needs to know the relationship to those siblings and whether this establishes the session they depend on; neither is addressed. With no output schema, the description should also indicate whether anything is returned (page content vs. just a navigation acknowledgement), and it does not.

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?

With a single optional parameter at 100% schema description coverage, the schema already documents the url field and its default. The description merely restates the default (https://www.udemy.com) without adding constraints, accepted formats, or whether relative paths are allowed.

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 leading clause gives a clear verb and resource ("Open a Udemy page in your signed-in Cloud Browser"), but the trailing clause "to work with create coupons and update courses" is grammatically broken and could mislead an agent into thinking this tool creates coupons or updates courses itself. It also does not position the tool relative to siblings like udemy_read, udemy_click, or udemy_type.

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 explicit guidance on when to call this versus udemy_read, udemy_click, udemy_type, or udemy_guide, nor whether opening must precede those tools or whether it reuses an existing session. The only usage hint is the implied need for a signed-in browser.

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