使用 Can I Use 資料庫檢查 Web API 的瀏覽器相容性，取得支援版本和 polyfill 建議
AI agents call check_browser_support to retrieve information from Dev Advisor MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs read-only queries against the Can I Use database to retrieve browser compatibility information. It returns informational data (supported versions, polyfill recommendations) without creating, modifying, or deleting any data, and without executing arbitrary code or commands. This is a classic Read category operation with minimal security risk.
From the tool's definition Tool queries Can I Use database to check browser compatibility and retrieve support versions and polyfill suggestions. The description indicates data retrieval operations ('檢查', 'get support versions') with no modification, deletion, or execution of code.
Attacks that exploit this kind of access
使用 Can I Use 資料庫檢查 Web API 的瀏覽器相容性，取得支援版本和 polyfill 建議. It is categorised as a Read tool in the Dev Advisor MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Dev Advisor MCP Server MCP server in PolicyLayer and add a rule for check_browser_support: 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 Dev Advisor MCP Server. Nothing to install.
check_browser_support 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 check_browser_support 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 check_browser_support. 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.
check_browser_support is provided by the Dev Advisor MCP Server MCP server (mukiwu/dev-advisor-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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