Show Notes
This episode breaks down recent Codex CLI updates, including live plugin hot-reloading for running sessions, improved workspace trust safety, and a critical fix that prevents untrusted repos from executing PATH helper binaries. It also covers the removal of the deprecated mcp-server entry point, targeted /copy improvements for cleaner debugging, and clearer sandbox policy reporting in codex doctor.
More from The Codex Changelog
Codex 0.164.0 adds inline arguments to /model and /permissions, letting you switch models, reasoning effort, speed, and permission profiles without navigating pickers. Learn a practical workflow for saving those combinations in /presets, plus caveats around unsupported settings and resumed sessions.
A closed background-compaction channel could leave a Codex app-server turn stuck in progress; learn the reported recovery steps and the fix associated with PR 55581, whose release availability is still unclear. We also cover an open report of queued input disappearing when pre-turn compaction is interrupted, plus notes on CLI voice disconnects, installer download-host selection, and GPT 5.5 retirement.
Codex’s new PromptCacheKey policy lets hosts keep session identity separate from prompt-cache routing. Learn how to choose a shared key for parallel subagents, omit the field for compatible gateways, and reapply the policy when resuming threads—plus caveats for cache hits and prompt consistency. Also: updates to fork-prefix preservation, authentication errors, Guardian metrics, and compaction recovery.
Codex 0.164.0 alpha adds a startup check for feature-flag mismatches between the CLI and its background daemon, replacing a silent fallback to embedded mode with a recovery prompt. Learn how to configure feature overrides and reconnect safely, including the warning that restarting a shared daemon can interrupt active subagents; the episode also covers improvements to TUI question rendering, picker ranking, remote reconnects, and Linux launcher security.
Codex’s new PreModelRequest and PostModelRequest hooks expose model-call lifecycle data, including retries, status, and reported token usage. Learn how to register an async logging hook, account for cancelled turns, and check build availability, plus smaller security and workflow updates.