This PR adds a durable trace linkage for each turn by storing the active trace ID on the rollout TurnContext record stored in session rollout files. Before this change, we propagated trace context at runtime but didn’t persist a stable per-turn trace key in rollout history. That made after-the-fact debugging harder (for example, mapping a historical turn to the corresponding trace in datadog). This sets us up for much easier debugging in the future. ### What changed - Added an optional `trace_id` to TurnContextItem (rollout schema). - Added a small OTEL helper to read the current span trace ID. - Captured `trace_id` when creating `TurnContext` and included it in `to_turn_context_item()`. - Updated tests and fixtures that construct TurnContextItem so older/no-trace cases still work. ### Why this approach TurnContext is already the canonical durable per-turn metadata in rollout. This keeps ownership clean: trace linkage lives with other persisted turn metadata.
codex-core
This crate implements the business logic for Codex. It is designed to be used by the various Codex UIs written in Rust.
Dependencies
Note that codex-core makes some assumptions about certain helper utilities being available in the environment. Currently, this support matrix is:
macOS
Expects /usr/bin/sandbox-exec to be present.
When using the workspace-write sandbox policy, the Seatbelt profile allows
writes under the configured writable roots while keeping .git (directory or
pointer file), the resolved gitdir: target, and .codex read-only.
Network access and filesystem read/write roots are controlled by
SandboxPolicy. Seatbelt consumes the resolved policy and enforces it.
Seatbelt also supports macOS permission-profile extensions layered on top of
SandboxPolicy:
- no extension profile provided:
keeps legacy default preferences read access (
user-preference-read). - extension profile provided with no
macos_preferencesgrant: does not add preferences access clauses. macos_preferences = "readonly": enables cfprefs read clauses anduser-preference-read.macos_preferences = "readwrite": includes readonly clauses plususer-preference-writeand cfprefs shm write clauses.macos_automation = true: enables broad Apple Events send permissions.macos_automation = ["com.apple.Notes", ...]: enables Apple Events send only to listed bundle IDs.macos_accessibility = true: enablescom.apple.axservermach lookup.macos_calendar = true: enablescom.apple.CalendarAgentmach lookup.
Linux
Expects the binary containing codex-core to run the equivalent of codex sandbox linux (legacy alias: codex debug landlock) when arg0 is codex-linux-sandbox. See the codex-arg0 crate for details.
All Platforms
Expects the binary containing codex-core to simulate the virtual apply_patch CLI when arg1 is --codex-run-as-apply-patch. See the codex-arg0 crate for details.