guardian review session was not available after spawn

Error message

guardian review session was not available after spawn

What it means

Error "guardian review session was not available after spawn" thrown in openai/codex.

Source

Thrown at codex-rs/core/src/guardian/review_session.rs:600

                        }
                        Err(outcome) => {
                            return (outcome, GuardianReviewAnalyticsResult::without_session());
                        }
                    };
                    state.trunk = Some(Arc::clone(&review_session));
                    spawned_trunk = true;
                }

                state.trunk.as_ref().cloned()
            }
            Err(outcome) => {
                return (outcome, GuardianReviewAnalyticsResult::without_session());
            }
        };

        let Some(trunk) = trunk_candidate else {
            return (
                GuardianReviewSessionOutcome::Completed(Err(anyhow!(
                    "guardian review session was not available after spawn"
                ))),
                GuardianReviewAnalyticsResult::without_session(),
            );
        };

        if trunk.reuse_key != next_reuse_key {
            return Box::pin(self.run_ephemeral_review(
                params,
                next_reuse_key,
                deadline,
                parent_compaction,
                /*fork_snapshot*/ None,
            ))
            .await;
        }

        let trunk_guard = match trunk.review_lock.try_acquire() {

View on GitHub (pinned to 339751715c)

Solutions

Retry the guardian review; the review session failed to spawn.

When it happens

Trigger: Thrown at codex-rs/core/src/guardian/review_session.rs:600 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of openai/codex@339751715c (2026-08-25). Data as JSON: /api/errors/fad7f55aecda771d. Report an issue: GitHub.