capture_responsive_suite
Capture screenshots at all 3 standard responsive breakpoints (mobile 375px, tablet 768px, desktop 1280px) in one call. Returns all 3 screenshots as inline images that multimodal agents can see and compare side-by-side. Also captures console errors per viewport. Use this after UI implementations t...
This record as markdown: /tools/io-github-homenshum-nodebench/capture-responsive-suite.md
What capture_responsive_suite does on Nodebench
AI agents call capture_responsive_suite to retrieve information from Nodebench without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why capture_responsive_suite is rated Low
This tool performs read-only operations: it screenshots UI at different breakpoints and reports console errors. No data is created, modified, deleted, or irreversibly changed. No code execution beyond the screenshot mechanism itself (which is needed to produce the output).
From the tool's definition Tool captures screenshots at responsive breakpoints and returns images; description emphasizes retrieval of visual data ('Returns all 3 screenshots as inline images') and console errors.
Attacks that exploit this kind of access
The rule that runs capture_responsive_suite safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Nodebench, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For capture_responsive_suite, this is the rule to start with:
capture_responsive_suite is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Nodebench, apply this rule, and every capture_responsive_suite call is checked against it from then on.
Questions about capture_responsive_suite
Capture screenshots at all 3 standard responsive breakpoints (mobile 375px, tablet 768px, desktop 1280px) in one call. Returns all 3 screenshots as inline images that multimodal agents can see and compare side-by-side. Also captures console errors per viewport. Use this after UI implementations to quickly verify responsive behavior. It is categorised as a Read tool in the Nodebench MCP Server, which means it retrieves data without modifying state.
Register the Nodebench MCP server in PolicyLayer and add a rule for capture_responsive_suite: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Nodebench. Nothing to install.
capture_responsive_suite is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the capture_responsive_suite rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for capture_responsive_suite. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
capture_responsive_suite is provided by the Nodebench MCP server (nodebench-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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