What causes "failed to resolve HEAD commit after quick commit" in nikivdev/code?

Run `git rev-parse --verify HEAD` manually to check repo state; fix any broken HEAD reference.

failed to resolve HEAD commit after quick commit

Error message

failed to resolve HEAD commit after quick commit

What it means

After performing a 'quick' commit, the library runs `git rev-parse --verify HEAD` to obtain the new commit SHA. If the command output is empty — HEAD could not be resolved — it bails because the subsequent async queue review needs a valid commit SHA. This indicates the commit unexpectedly left the repository without a resolvable HEAD.

Source

Thrown at src/commit.rs:2397

    let explicit_no_queue = queue.override_flag == Some(false);

    if let Some(message) = fast_message {
        run_fast(message, push, queue, include_unhash, stage_paths)?;
    } else {
        run_sync(push, queue, include_unhash, stage_paths)?;
    }

    if explicit_no_queue {
        println!("Skipped async Codex review because --no-queue was requested.");
        return Ok(());
    }

    let repo_root = git_root_or_cwd();
    let commit_sha = git_capture_in(&repo_root, &["rev-parse", "--verify", "HEAD"])?
        .trim()
        .to_string();
    if commit_sha.is_empty() {
        bail!("failed to resolve HEAD commit after quick commit");
    }

    ensure_commit_queued_for_async_review(&repo_root, &commit_sha)?;

    match spawn_async_queue_review(&repo_root, &commit_sha) {
        Ok(()) => {
            println!(
                "Started async Codex review for {} (running in background).",
                short_sha(&commit_sha)
            );
            println!(
                "  Check status: f commit-queue show {}",
                short_sha(&commit_sha)
            );
        }
        Err(err) => {
            println!("⚠️ Failed to start async review automatically: {}", err);
            println!(

View on GitHub (pinned to a747e741ae)

Solutions

Run `git rev-parse --verify HEAD` manually to check repo state; fix any broken HEAD reference.
Verify the commit actually landed with `git log -1`; if not, inspect hook output and re-commit.
On a fresh branch, make an initial commit so HEAD exists before using quick-commit flows.
Re-run the tool from the repository root once `git status` works cleanly.

Defensive patterns

Strategy: try-catch

Validate before calling

// Verify HEAD resolves before/after quick-commit flows
let out = Command::new("git").args(["rev-parse", "--verify", "HEAD"]).output()?;
if !out.status.success() || out.stdout.is_empty() { /* repo HEAD is broken; fix before committing */ }

Try / catch

match result {
    Err(e) if e.to_string().contains("failed to resolve HEAD commit after quick commit") => {
        eprintln!("HEAD unresolved: run 'git rev-parse --verify HEAD' and 'git log -1', fix hooks/repo, then retry");
    }
    Err(e) => return Err(e.into()),
    Ok(v) => v,
}

Prevention

Keep pre-commit/post-commit hooks fast and side-effect free (no deleting/resetting HEAD).
Avoid committing on unborn branches; create an initial commit first.
Monitor .git/HEAD integrity; restore with `git symbolic-ref HEAD refs/heads/<branch>` if broken.

When it happens

Trigger: Calling the quick-commit flow in a repository where HEAD cannot be resolved after the commit (e.g. detached/broken HEAD, commit actually failed, or a bare/corrupted repo returning empty output).

Common situations: Running in a repo with a corrupted .git/HEAD; a hook deleting the just-created commit; operating in a worktree with an un-born branch (no commits on a fresh branch); disk/state races between commit and rev-parse.

Related errors

AI-assisted analysis of nikivdev/code@a747e741ae (2026-09-01). Data as JSON: /api/errors/a7164cf84d25e985. Report an issue: GitHub.