Codex CLI 0.138.0-alpha.6

User-facing

• [changed] Added a --json flag to codex plugin add, plugin remove, and the plugin marketplace add/list/remove/upgrade commands.
• [changed] Clarified in the docs that model reasoningEffort values are model-advertised strings.
• [changed] Clarified that Submission payloads are primarily in-process types, not a stable wire contract.

Internal / groundwork

• Added a new external-agent-sessions crate.
• Added internal modules for agent control (legacy and spawn paths), an external-agent session ledger, personal-access-token auth, and Ollama line buffering.
• Removed the goals subsystem and the startup remote-sync module.
• Added the CODEX_AUTHAPI_BASE_URL environment variable, in a new CODEX_AUTHAPI group.
• Expanded the internal data model with new types for app templates, auth config, code-mode and config-requirements, remote control, and token usage; removed the goal-related types.
• Added protocol messages for account token usage and remote-control pairing.
• AGENTS.md guidance updated for async traits, benchmarks (just bench), test assertions, and removing negative tests for deleted logic.
• Bazel wrapper documentation expanded.
• version.json channel changed to alpha.

Upgrade notes

Check any custom goal-related tooling or remote-sync plugins; the goals subsystem and startup remote-sync have been removed.