Your team wants Claude Code to never auto-update on shared CI machines — Claude Code Certified Professional Practice — Claude Cert Academy

Your team wants Claude Code to never auto-update on shared CI machines to avoid unexpected behavior changes between runs. Which approach enforces this correctly?

• Set CLAUDE_NO_AUTO_UPDATE=1 in the CI environment variables
• Run `claude --no-auto-update` on every invocation via a wrapper script
• Pin the npm package version in package.json and run `npx claude@<version>`
• Delete the auto-update binary after installation

Answer: Set CLAUDE_NO_AUTO_UPDATE=1 in the CI environment variables

Setting CLAUDE_NO_AUTO_UPDATE=1 as an environment variable is the canonical, documented way to disable auto-updates globally for an environment. A wrapper script with --no-auto-update would work per invocation but is fragile (any direct call bypasses it). Pinning via npx still downloads the pinned version fresh each time which can cause network issues. Deleting the updater binary is unsupported and will break future installs.

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