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Felipe Coury
5a440c03f2
## Why MCP startup failures from spawned subagents were rendered as global notifications, so a child thread's failure could pollute the visible parent transcript. Routing the notification to the child exposed two related replay problems: session refresh could discard the buffered event, and a newly created child `ChatWidget` did not know the expected MCP server set, which could leave its startup spinner running after every server had settled. MCP startup diagnostics should remain visible in the thread that owns the startup without affecting other transcripts. The protocol also needs to support a future app-scoped MCP lifecycle where startup is not owned by any thread. ## Reported Behavior The [originating Slack report](https://openai.slack.com/archives/C08JZTV654K/p1780604538859939) called out that using subagents could turn MCP startup failures into a wall of yellow CLI warnings because repeated failures were not deduplicated. The intended behavior is for those diagnostics to remain visible once in the thread that owns the startup, without polluting the parent transcript. ## What Changed - add nullable `threadId` ownership to `mcpServer/startupStatus/updated` - populate it from the app-server conversation ID for the current thread-scoped lifecycle and regenerate the protocol schema and TypeScript artifacts - treat a missing or null `threadId` as app-scoped without injecting it into the active chat transcript - route and buffer thread-owned MCP startup notifications by thread in the TUI - preserve buffered MCP startup events across child session refresh - seed expected MCP servers before replaying a thread snapshot so startup reaches its terminal state - suppress an identical repeated failure warning for the same server within one startup round The owning thread still renders the detailed failure and final `MCP startup incomplete (...)` summary. ## How to Test 1. Configure an optional MCP server named `smoke` that exits during initialization. 2. Launch the TUI with multi-agent support enabled. 3. Confirm the main thread's own startup failure renders one detailed `smoke` warning and one incomplete-startup summary. 4. Spawn exactly one subagent. 5. Confirm the parent transcript does not receive the subagent's MCP startup failure. 6. Switch to the subagent thread and confirm it contains exactly one detailed `smoke` failure and one incomplete-startup summary. 7. Confirm the subagent's MCP startup spinner disappears and the thread remains usable. 8. Switch between the parent and subagent and confirm the warnings neither move nor duplicate. Targeted tests: - `just test -p codex-app-server-protocol` - `just test -p codex-app-server thread_start_emits_mcp_server_status_updated_notifications` - `just test -p codex-tui mcp_startup` The parent/child behavior and spinner completion were also exercised manually in tmux. `just argument-comment-lint` was attempted but blocked by an unrelated local Bazel LLVM empty-glob failure; touched Rust callsites were inspected manually.
5a440c03f2
·
2026-06-07 20:12:05 -07:00
7,210 Commits
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.