accuranker_open

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

With no annotations, the description carries the full behavioral burden. It usefully discloses that the browser is already signed in (an auth-context detail not in the schema) and that a default URL applies, but it says nothing about whether an already-open page is replaced, whether a new tab is created, or what happens on navigation failure.

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 short sentence, which is appropriately sized, but it is not clean: 'a AccuRanker' is ungrammatical, the use-case clause is broken ('to work with add keywords'), and the default URL is stated twice (description and schema). Tightening would make the intent front-loaded and unambiguous.

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 the core action and the signed-in session context. It still leaves state questions unanswered — whether this replaces the current page, returns a handle, or is required before accuranker_read/click/type — which matter for a browser-control 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?

There is a single optional parameter and the schema already documents it at 100% coverage, including the same default URL. The description only repeats that default, adding no format constraints, relative-vs-absolute URL rules, or path expectations 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?

The description gives a concrete verb and resource: open an AccuRanker page in the signed-in Cloud Browser, with the default target URL named. It implicitly separates itself from siblings like accuranker_read/click/type, which act on an already-open page, but never states that relationship 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 phrase 'to work with add keywords and check your rankings' gestures at when to use it, but it is grammatically garbled and reads as an incomplete use case rather than guidance. There is no statement of prerequisites (e.g., must a session exist first?) or when to prefer a sibling such as accuranker_guide or accuranker_status.

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