search_images
Search stock photos (Pexels) for a page/product. IMPORTANT: the storefront only renders images served from the WebCake CDN (image domains are whitelisted) — raw Pexels URLs will NOT display. By default this re-hosts each result on the WebCake CDN and returns a ready-to-use cdn_url (cached, so rep...
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What search_images does on Webcake Storefront
AI agents call search_images to retrieve information from Webcake Storefront without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why search_images is rated Low
This tool retrieves and queries data from Pexels stock photo service without creating, modifying, deleting, or executing arbitrary operations. The re-hosting to WebCake CDN is a technical implementation detail that enables the read results to function on the platform, not a write operation with side effects that persist new data structures. No code execution, data modification, or destructive actions are performed.
From the tool's definition Tool description states it 'Search[es] stock photos' and 'returns a ready-to-use cdn_url'. The primary action is searching/querying an external service (Pexels) for images.
Attacks that exploit this kind of access
The rule that runs search_images safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Webcake Storefront, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For search_images, this is the rule to start with:
search_images 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 Webcake Storefront, apply this rule, and every search_images call is checked against it from then on.
Questions about search_images
Search stock photos (Pexels) for a page/product. IMPORTANT: the storefront only renders images served from the WebCake CDN (image domains are whitelisted) — raw Pexels URLs will NOT display. By default this re-hosts each result on the WebCake CDN and returns a ready-to-use cdn_url (cached, so repeats are free). Use cdn_url for image src / product images. Requires the PEXELS_API_KEY environment variable. It is categorised as a Read tool in the Webcake Storefront MCP Server, which means it retrieves data without modifying state.
Register the Webcake Storefront MCP server in PolicyLayer and add a rule for search_images: 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 Webcake Storefront. Nothing to install.
search_images 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 search_images 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 search_images. 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.
search_images is provided by the Webcake Storefront MCP server (webcake-storefront-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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