Codex on SPERIXLABShttps://sperixlabs.org/tags/codex/Recent content in Codex on SPERIXLABSHugoen-usSPERIXLABSSat, 11 Apr 2026 18:10:00 +0000What Leaves Your Workstation When You Use an LLM Coding CLIhttps://sperixlabs.org/post/2026/04/what-leaves-your-workstation-when-you-use-an-llm-coding-cli/Sat, 11 Apr 2026 18:10:00 +0000https://sperixlabs.org/post/2026/04/what-leaves-your-workstation-when-you-use-an-llm-coding-cli/<h2 id="tldr">TL;DR<a class="anchor" href="#tldr" aria-label="Anchor to this section">#</a> </h2> <p>I put five LLM coding CLIs through a transparent TLS-intercepting proxy for about three and a half hours in a lab environment and captured every HTTP(S) transaction they made. The tools were <strong>Claude Code</strong>, <strong>GitHub Copilot CLI</strong>, <strong>Cursor CLI</strong>, <strong>OpenAI Codex CLI</strong>, and <strong>Opencode CLI</strong>. The capture ran on an Apple Silicon MacBook (darwin/arm64) on 2026-04-11 and produced 302 transactions across 18 hosts.</p> <p>A few things stood out:</p>