What problem does it solve? Bumping VS Code's bundled Codex SDK is error-prone: the public npm latest version is often unavailable in the private Azure DevOps feed used by CI, version pins live in multiple package manifests and lockfiles, and the generated protocol client must stay in sync. This Skill automates version selection, pinning, regeneration, testing, and live verification. ## Core Features & Use Cases - Private-feed version selection: A helper script authenticates via Azure CLI and queries the private VS Code npm feed to find the newest stable Codex release with all platform binaries present. - Consistent version pinning: Updates package.json, package-lock.json, the agent-sdk lockfile, and codex-version.txt with exact versions while keeping lockfile URLs on the public registry. - Protocol regeneration and validation: Regenerates the vendored app-server client, runs compile, unit, hygiene, and Agent Host E2E checks, then verifies a real Codex session in a launched Code OSS window. - Use Case: When a new @openai/codex release ships, run this Skill to safely bump the bundled SDK, regenerate the protocol client, and prove the Agent Host works before opening a pull request. ## Quick Start Use the update-codex-sdk skill to update VS Code to the newest private-feed-available Codex SDK and verify it end to end.