openai/codex · error

Review prompt cannot be empty

Error message

Review prompt cannot be empty

What it means

Error "Review prompt cannot be empty" thrown in openai/codex.

Source

Thrown at codex-rs/prompts/src/review_request.rs:94

            }
        }
        ReviewTarget::Commit { sha, title } => {
            if let Some(title) = title {
                Ok(render_review_prompt(
                    &COMMIT_PROMPT_WITH_TITLE_TEMPLATE,
                    [("sha", sha.as_str()), ("title", title.as_str())],
                ))
            } else {
                Ok(render_review_prompt(
                    &COMMIT_PROMPT_TEMPLATE,
                    [("sha", sha.as_str())],
                ))
            }
        }
        ReviewTarget::Custom { instructions } => {
            let prompt = instructions.trim();
            if prompt.is_empty() {
                anyhow::bail!("Review prompt cannot be empty");
            }
            Ok(prompt.to_string())
        }
    }
}

fn render_review_prompt<'a, const N: usize>(
    template: &Template,
    variables: [(&'a str, &'a str); N],
) -> String {
    template
        .render(variables)
        .unwrap_or_else(|err| panic!("review prompt template must render: {err}"))
}

pub fn user_facing_hint(target: &ReviewTarget) -> String {
    match target {
        ReviewTarget::UncommittedChanges => "current changes".to_string(),

View on GitHub (pinned to 339751715c)

When it happens

Trigger: Thrown at codex-rs/prompts/src/review_request.rs:94 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/aa94bef4bd29ecc3. Report an issue: GitHub.