Execute HTTP GET requests to retrieve web content through browser automation, enabling data extraction and web interaction via the Chrome DevTools Protocol.
Perform an HTTP GET request
| Name | Required | Description | Default |
|---|---|---|---|
| url | Yes | URL to perform GET operation |
Changes observed during successful MCP inspections.
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the full burden of behavioral disclosure. It states the action but lacks critical details: it doesn't mention if this opens a new page, handles redirects, includes headers, manages cookies, or returns response data. For an HTTP tool with zero annotation coverage, this is a significant gap in transparency.
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 extremely concise—a single, direct sentence with no wasted words. It's front-loaded with the core action, making it easy to parse quickly. Every word earns its place by conveying the essential purpose without fluff.
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 the complexity of HTTP requests and the lack of annotations and output schema, the description is incomplete. It doesn't cover behavioral aspects like error handling, response format, or integration with other Playwright tools (e.g., page state). For a tool that likely interacts with web pages, more context is needed to understand its full role and limitations.
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 schema description coverage is 100%, with the 'url' parameter clearly documented in the schema. The description doesn't add any meaning beyond what the schema provides—it doesn't explain URL format requirements, encoding, or base URL context. Given the high schema coverage, the baseline score of 3 is appropriate as the schema handles the parameter documentation adequately.
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 the verb ('Perform') and resource ('HTTP GET request'), making the purpose immediately understandable. However, it doesn't differentiate from sibling tools like playwright_post or playwright_navigate, which are also HTTP-related actions, so it doesn't fully distinguish itself within the family of Playwright tools.
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 provides no guidance on when to use this tool versus alternatives. With siblings like playwright_navigate (likely for page navigation) and playwright_post (for POST requests), there's no indication of context, prerequisites, or exclusions. It's a generic statement that offers no usage direction.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.