Heavily Quantized Qwen 3.8 27B Taught Itself to Drive Headless Chrome for Testing
satnl · reddit · 2026-09-17
Running an IQ3XXS-quantized Qwen 3.8 27B locally in opencode with no MCP or browser tools enabled, the author found the model had autonomously extracted JS from its own output, syntax-checked it with node --check, discovered headless Chrome and Playwright on the machine, and ran a SwiftShader-enabled headless screenshot smoke test. The takeaway: instead of paying 7k tokens per session for a Chrome MCP, one line in the agent's md file telling it headless Chrome via CDP is available may be enough.
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