get_url
Retrieves the current tab's URL from a Chrome/Chromium instance connected via CDP, supporting navigation checks and URL-based automation.
Instructions
Get URL (alias)
Input Schema
| Name | Required | Description | Default |
|---|---|---|---|
No arguments | |||
Retrieves the current tab's URL from a Chrome/Chromium instance connected via CDP, supporting navigation checks and URL-based automation.
Get URL (alias)
| Name | Required | Description | Default |
|---|---|---|---|
No arguments | |||
Changes observed during successful MCP inspections.
v4.3.0Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the full behavioral burden. It offers no details beyond the action itself: no read-only confirmation, no return format, no side-effect profile, and no indication of whether it returns the current page URL or fetches a URL.
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 very short and front-loads the verb and resource. However, '(alias)' is unexplained clutter that does not earn its place and does not help an agent select or invoke the tool.
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?
The tool is low complexity with no parameters and no output schema, but the description still omits what URL is returned, how it differs from get_page, and any behavioral context. It is not complete enough for an agent to invoke it confidently without checking siblings.
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 tool has zero parameters and 100% schema description coverage, so the baseline is 4. The description has no parameter information to add, and none is needed.
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 'Get' and resource 'URL', which distinguishes it from siblings such as get_title, get_html, and get_text. However, the parenthetical '(alias)' is unexplained and does not clarify which tool it aliases or what scope it covers.
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 indication of when to use this tool versus get, get_page, get_title, or other read-oriented siblings. The description provides no context, prerequisites, or exclusions.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.