openai/codex · error · anyhow::Error

expected namespace {namespace} to be an object

Error message

expected namespace {namespace} to be an object

What it means

Error "expected namespace {namespace} to be an object" thrown in openai/codex.

Source

Thrown at codex-rs/app-server-protocol/src/export.rs:1294

        }
        _ => {}
    }
}

fn insert_into_namespace(
    definitions: &mut Map<String, Value>,
    namespace: &str,
    name: String,
    schema: Value,
) -> Result<()> {
    let entry = definitions
        .entry(namespace.to_string())
        .or_insert_with(|| Value::Object(Map::new()));
    match entry {
        Value::Object(map) => {
            insert_definition(map, name, schema, &format!("namespace `{namespace}`"))
        }
        _ => Err(anyhow!("expected namespace {namespace} to be an object")),
    }
}

fn insert_definition(
    definitions: &mut Map<String, Value>,
    name: String,
    schema: Value,
    location: &str,
) -> Result<()> {
    if let Some(existing) = definitions.get(&name) {
        if existing == &schema {
            return Ok(());
        }

        let existing_title = existing
            .get("title")
            .and_then(Value::as_str)
            .unwrap_or("<untitled>");

View on GitHub (pinned to 339751715c)

When it happens

Trigger: Thrown at codex-rs/app-server-protocol/src/export.rs:1294 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/41d87a5969e3cc94. Report an issue: GitHub.