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Assistants/OpenAI Codex CLI

OpenAI Codex CLI

OpenAI · cli agent · paid

Lightweight coding agent that runs in your terminal (Codex CLI).

agentcliopenaicodex
Website ↗Docs ↗
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Config files OpenAI Codex CLI has changed

Config you own — hooks, permission rules, MCP servers, settings — that releases below state a change to. Counted from the release notes we track, newest change first. How a harness is layered.

skills and plugins3 changes · 9 releases touched it · latest Sep 29, 2026 · rust-v0.159.0 ↗
agent context files3 changes · latest Oct 15, 2026 · rust-v0.163.0 ↗
MCP server config2 changes · 16 releases touched it · latest Sep 9, 2026 · rust-v0.154.0 ↗
permission rules2 changes · 6 releases touched it · latest Oct 15, 2026 · rust-v0.163.0 ↗
hooks1 change · 6 releases touched it · latest Oct 15, 2026 · rust-v0.163.0 ↗
sandbox settings1 change · 6 releases touched it · latest Aug 7, 2026 · rust-v0.147.0 ↗

Security advisories

2 published for Codex CLI, from the GitHub Advisory Database.

Release signals

OpenAI Codex CLIrust-v0.152.0Sep 1, 2026

Vim mode supports `/` and `?` searches within drafts, highlighted matches, and repeat navigation with `n` and `N`. (#41586)

  • Rate-limit banners offer actions for checking usage, managing credits, resetting limits, and managing plans. (#41742)
  • The terminal UI and `codex exec` show credential-refresh progress, including Amazon Bedrock reauthentication. (#41239)
  • MCP server names can contain `:`, `@`, `/`, and `.`, supporting package-style names throughout CLI commands and authentication. (#41700)
  • +101 more changes
Read the full release note

New Features

  • Vim mode supports / and ? searches within drafts, highlighted matches, and repeat navigation with n and N. (#41586)

  • Rate-limit banners offer actions for checking usage, managing credits, resetting limits, and managing plans. (#41742)

  • The terminal UI and codex exec show credential-refresh progress, including Amazon Bedrock reauthentication. (#41239)

  • MCP server names can contain :, @, /, and ., supporting package-style names throughout CLI commands and authentication. (#41700)

  • Individual MCP tools support an output_token_limit setting, with consistent truncation across session resumes. (#41421)

  • App-server clients can configure thread/shellCommand timeouts, including deadlines longer than one hour. (#41384)

Bug Fixes

  • Vim-enabled composers now start fresh drafts in Insert mode, including after submitting messages or dispatching slash commands. (#41921)

  • Automatic approval reviews can retain longer messages and a larger conversation transcript. (#41931)

  • Automatic approval reviews preserve user instructions, answers, and valid authorizations across history compaction. (#41660, #41846, #41852)

Excerpt ends here — this release continues at the source ↗.

Primary source ↗

Polled sources

[openai-developers] OpenAI Developers Codex

Product page · not polled

https://developers.openai.com/codex

[github-releases] GitHub Releases

GitHub Releases · last read Oct 25, 2026

https://github.com/openai/codex/releases