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## Why [#30867](https://github.com/openai/codex/pull/30867) makes `submit_inter_agent_communication` the common outbound sink for multi-agent v2 communications. This follow-up uses that single point to log every communication lifecycle without requiring new hooks as spawn, messaging, follow-up, or result paths evolve. For each communication, the logs need to identify its type, sender and receiver threads, and content, while correlating the successful send with receipt by the destination mailbox. The logging path must not query externally supplied time providers because those calls can be expensive for app-server clients. ## What changed - Added structured `INFO` events on the OpenTelemetry-exported `codex_otel.agent_communication` target for `spawn`, `message`, `followup`, and `result` communications. - Logged successful sends from `submit_inter_agent_communication` with the communication kind, sender and receiver thread IDs, content, and submission ID. - Logged receives after the communication has been enqueued in the receiver mailbox, using the same submission ID. - Avoided time-provider calls and other asynchronous work in the logging path. - Narrowed ordinary spawn and send-input APIs to `Vec<UserInput>` so `Op::InterAgentCommunication` cannot bypass the context-bearing centralized path. The refactor does not change submission IDs, capacity checks, last-task bookkeeping, mailbox ordering, protocol types, rollout data, or model-visible context. ## Event shape Illustrative JSON representation of the two independently emitted records: ```json [ { "event.name": "codex.agent_communication", "communication_id": "019f20e1-40d1-7890-a123-456789abcdef", "kind": "spawn", "state": "send", "sender_thread_id": "019f20df-fbe1-7890-a123-456789abcdef", "receiver_thread_id": "019f20e1-3f79-7890-a123-456789abcdef", "content": "inspect the repository" }, { "event.name": "codex.agent_communication", "communication_id": "019f20e1-40d1-7890-a123-456789abcdef", "state": "receive" } ] ``` Consumers join the receive record to the send record by `communication_id` for the immutable communication metadata. ## Testing - Extended the existing end-to-end multi-agent v2 spawn test to verify content, both thread IDs, and a correlated send/receive submission ID. - Re-ran focused control and handler coverage for direct messages, follow-up tasks, and completion results.
Codex CLI is a coding agent from OpenAI that runs locally on your computer.
If you want Codex in your code editor (VS Code, Cursor, Windsurf), install in your IDE.
If you want the desktop app experience, run
codex app or visit the Codex App page.
If you are looking for the cloud-based agent from OpenAI, Codex Web, go to chatgpt.com/codex.
Quickstart
Installing and running Codex CLI
Run the following on Mac or Linux to install Codex CLI:
curl -fsSL https://chatgpt.com/codex/install.sh | sh
Run the following on Windows to install Codex CLI:
powershell -ExecutionPolicy ByPass -c "irm https://chatgpt.com/codex/install.ps1 | iex"
Codex CLI can also be installed via the following package managers:
# Install using npm
npm install -g @openai/codex
# Install using Homebrew
brew install --cask codex
Then simply run codex to get started.
You can also go to the latest GitHub Release and download the appropriate binary for your platform.
Each GitHub Release contains many executables, but in practice, you likely want one of these:
- macOS
- Apple Silicon/arm64:
codex-aarch64-apple-darwin.tar.gz - x86_64 (older Mac hardware):
codex-x86_64-apple-darwin.tar.gz
- Apple Silicon/arm64:
- Linux
- x86_64:
codex-x86_64-unknown-linux-musl.tar.gz - arm64:
codex-aarch64-unknown-linux-musl.tar.gz
- x86_64:
Each archive contains a single entry with the platform baked into the name (e.g., codex-x86_64-unknown-linux-musl), so you likely want to rename it to codex after extracting it.
Using Codex with your ChatGPT plan
Run codex and select Sign in with ChatGPT. We recommend signing into your ChatGPT account to use Codex as part of your Plus, Pro, Business, Edu, or Enterprise plan. Learn more about what's included in your ChatGPT plan.
You can also use Codex with an API key, but this requires additional setup.
Docs
This repository is licensed under the Apache-2.0 License.