openai/codex · error · anyhow::Error
Forking with output options requires a prompt
Error message
Forking with output options requires a prompt
What it means
Error "Forking with output options requires a prompt" thrown in openai/codex.
Source
Thrown at codex-rs/exec/src/lib.rs:772
.chain(args.images.iter().cloned())
.map(|path| UserInput::LocalImage { path, detail: None })
.collect();
items.push(UserInput::Text {
text: prompt_text.clone(),
text_elements: Vec::new(),
});
let output_schema = load_output_schema(output_schema_path);
(
InitialOperation::UserTurn {
items,
output_schema,
},
prompt_text,
)
} else if !imgs.is_empty() || !args.images.is_empty() {
anyhow::bail!("Forking with images requires a prompt");
} else if output_schema_path.is_some() || last_message_file.is_some() {
anyhow::bail!("Forking with output options requires a prompt");
} else if config.ephemeral {
anyhow::bail!("Ephemeral forks require a prompt");
} else {
(InitialOperation::ForkOnly, String::new())
}
}
(None, root_prompt, imgs) => {
let prompt_text = resolve_root_prompt(root_prompt);
let mut items: Vec<UserInput> = imgs
.into_iter()
.map(|path| UserInput::LocalImage { path, detail: None })
.collect();
items.push(UserInput::Text {
text: prompt_text.clone(),
// CLI input doesn't track UI element ranges, so none are available here.
text_elements: Vec::new(),
});
let output_schema = load_output_schema(output_schema_path);View on GitHub (pinned to 339751715c)
Solutions
- Provide a prompt when forking with output options.
When it happens
Trigger: Thrown at codex-rs/exec/src/lib.rs:772 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/cd93fe36fc7bb5c6.
Report an issue: GitHub.