A local stdio MCP server that exposes compact semantic observations from UI elements annotated with data-agent-* hints, designed to work alongside the official Playwright MCP for browser automation.
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Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.
When Vitest UI server is listening, arbitrary file can be read and executed
Vitest allows Remote Code Execution when accessing a malicious website while Vitest API server is listening
@modelcontextprotocol/sdk has cross-client data leak via shared server/transport instance reuse
Anthropic's MCP TypeScript SDK has a ReDoS vulnerability
Model Context Protocol (MCP) TypeScript SDK does not enable DNS rebinding protection by default
process.env. You'll be asked to provide them before it can run.SEMANTIC_HINTS_CDP_URL— If is reachable, connect over CDP (the normal mode).SEMANTIC_HINTS_HEADLESS— true Headless mode for the standalone-launch fallback only.SEMANTIC_HINTS_LAUNCH_BROWSER— false If true, may launch a private browser when the CDP connection fails.SEMANTIC_HINTS_TARGET_URL— (unset) Optional default app URL, opened when a tool is called with no url.[](https://m8ven.ai/mcp/timotheeiss-semantic-hints-mcp-q2dmis)