Agent Dev Tools▸What changed in the major AI coding CLIs?▸time machine

What changed in the major AI coding CLIs?

version 35 · published 1h ago · this is the living answer

Current state

OpenAI upgraded Codex with default plugins, npm marketplace integration, version labeling, and MCP tool search that loads only needed tools [2029]. Claude Code's auto mode is now available without opt-in on Bedrock, Vertex AI, and Foundry [2266], alongside fixes for background sessions restoring blank [2273], auto-naming not showing in agent view [2272], malformed bracket patterns breaking file operations [2271], compound cd commands unnecessarily prompting for permission [2270], auto-updater overwriting custom launcher scripts [2269], spurious prompt-injection warnings [2268], remote managed settings bypassing consent dialogs [2267], very large markdown tables stalling rendering [2265], truncated stream-json/JSON output from `claude -p` [2264], lost replies to background agents [2263], fast mode not restoring after model switch [2262], and timeline outlines getting clipped [2278] and clipped labels and branch tooltips [2277]. Removed accidentally shipped interface transition changes [2276]. Added OAuth support for Luna Responses Lite [2275] and removed an obsolete Codex workaround interfering with OpenAI Luna Responses Lite requests [2274]. Added mouse-click support for multi-select menus in fullscreen mode [2261], `vimInsertModeRemaps` setting [2260], and screen reader mode [2259]. Perceptron launched Egocentric, an embodied reasoning offering turning raw video into policy-trainable supervision at 10–15× lower cost than human annotation [1935]. External tools: CodexPlusPlus unlocks plugin marketplaces and session deletion for Codex App [1937]; codexU tracks token usage and subscription value for both Codex and Claude Code [1842]. A user report notes Claude Code spawned 100 agents and consumed 3 million tokens in 10 minutes for a simple task [1933].[25]

Timeline

Early July 2026: OpenAI merged ChatGPT and Codex into a single desktop app with GPT‑5.6 models Sol, Terra, and Luna [1158]. Claude Code added a built‑in browser in late June [1234]. CodexPlusPlus was released in early July [1937]. Perceptron launched Egocentric in July [1935]. The latest OpenAI Codex upgrade arrived in mid‑July [2029], while Claude Code continued releasing a stream of reliability fixes and new features [2259–2278].[5]

Upcoming catalysts

Codex 5.6 models Sol, Terra, and Luna are still in testing with a potential global usage reset [985, 986]. US export restrictions on Anthropic’s Fable 5 were reversed; global rollout began July 1 [411]. Anthropic will host a hackathon July 7–13 [343]. Meanwhile, Claude Fable 5 was previously taken offline due to emergency export controls [306], raising questions about future model availability.[5]

What changed in this versionvs v34

Updated all claim IDs to the latest versions (e.g., 2231→2266, 2238→2273) and added new fixes for markdown tables, stream-json output, background agent replies, fast mode restoration, timeline clipping, and screen reader mode.

+Claude Code's auto mode is now available without opt-in on Bedrock, Vertex AI, and Foundry [2266], alongside fixes for background sessions restoring blank [2273], auto-naming not showing in agent view [2272], malformed bracket patterns breaking file operations [2271], compound cd commands unnecessarily prompting for permission [2270], auto-updater overwriting custom launcher scripts [2269], spurious prompt-injection warnings [2268], remote managed settings bypassing consent dialogs [2267], very large markdown tables stalling rendering [2265], truncated stream-json/JSON output from `claude -p` [2264], lost replies to background agents [2263], fast mode not restoring after model switch [2262], and timeline outlines getting clipped [2278] and clipped labels and branch tooltips [2277].

+Removed accidentally shipped interface transition changes [2276].

+Added OAuth support for Luna Responses Lite [2275] and removed an obsolete Codex workaround interfering with OpenAI Luna Responses Lite requests [2274].

+Added mouse-click support for multi-select menus in fullscreen mode [2261], `vimInsertModeRemaps` setting [2260], and screen reader mode [2259].

+The latest OpenAI Codex upgrade arrived in mid‑July [2029], while Claude Code continued releasing a stream of reliability fixes and new features [2259–2278].

−Claude Code's auto mode is now available without opt-in on Bedrock, Vertex AI, and Foundry [2231], alongside fixes for background sessions restoring blank [2238], auto-naming not showing in agent view [2237], malformed bracket patterns breaking file operations [2236], compound cd commands unnecessarily prompting for permission [2235], auto-updater overwriting custom launcher scripts [2234], spurious prompt-injection warnings [2233], remote managed settings bypassing consent dialogs [2232], very large markdown tables stalling rendering [2230], truncated stream-json/JSON output from `claude -p` [2229], lost replies to background agents [2228], fast mode not restoring after model switch [2227], and timeline outlines getting clipped [2243] and clipped labels and branch tooltips [2242].