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## Summary Improve `js_repl` behavior when the Node kernel hits a process-level failure (for example, an uncaught exception or unhandled Promise rejection). Instead of only surfacing a generic `js_repl kernel exited unexpectedly` after stdout EOF, `js_repl` now returns a clearer exec error for the active request, then resets the kernel cleanly. ## Why Some sandbox-denied operations can trigger Node errors that become process-level failures (for example, an unhandled EventEmitter `'error'` event). In that case: - the kernel process exits, - the host sees stdout EOF, - the user gets a generic kernel-exit error, - and the next request can briefly race with stale kernel state. This change improves that failure mode without monkeypatching Node APIs. ## Changes ### Kernel-side (`js_repl` Node process) - Add process-level handlers for: - `uncaughtException` - `unhandledRejection` - When one of these fires: - best-effort emit a normal `exec_result` error for the active exec - include actionable guidance to catch/handle async errors (including Promise rejections and EventEmitter `'error'` events) - exit intentionally so the host can reset/restart the kernel ### Host-side (`JsReplManager`) - Clear dead kernel state as soon as the stdout reader observes unexpected kernel exit/EOF. - This lets the next `js_repl` exec start a fresh kernel instead of hitting a stale broken-pipe path. ### Tests - Add regression coverage for: - uncaught async exception -> exec error + kernel recovery on next exec - Update forced-kernel-exit test to validate recovery behavior (next exec restarts cleanly) ## Impact - Better user-facing error for kernel crashes caused by uncaught/unhandled async failures. - Cleaner recovery behavior after kernel exit. ## Validation - `cargo test -p codex-core --lib tools::js_repl::tests::js_repl_uncaught_exception_returns_exec_error_and_recovers -- --exact` - `cargo test -p codex-core --lib tools::js_repl::tests::js_repl_forced_kernel_exit_recovers_on_next_exec -- --exact` - `just fmt`
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or brew install --cask codex
Codex CLI is a coding agent from OpenAI that runs locally on your computer.
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codex-x86_64-unknown-linux-musl.tar.gz - arm64:
codex-aarch64-unknown-linux-musl.tar.gz
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This repository is licensed under the Apache-2.0 License.