Function tool_result_has_semantic_error

src/mcp/server.rs:518–548

(value: &Value)

}

fn tool_result_has_semantic_error(value: &Value) -> bool {
    value
        .get("content")
        .and_then(Value::as_array)
        .is_some_and(|content| {
            content.iter().any(|item| {
                let Some(text) = item.get("text").and_then(Value::as_str) else {
                    return false;
                };
                let trimmed = text.trim_start();
                if plain_text_tool_failure(trimmed) {
                    return true;
                }
                if !trimmed.starts_with('{') {
                    return false;
                }
                let Ok(payload) = serde_json::from_str::<Value>(trimmed) else {
                    return false;
                };
                payload.get("success").and_then(Value::as_bool) == Some(false)
                    || payload.get("error").is_some_and(|error| !error.is_null())
                    || payload
                        .get("failed")
                        .and_then(Value::as_u64)
                        .is_some_and(|failed| failed > 0)
                    || payload
                        .get("exit_code")
                        .is_some_and(|code| !code.is_null() && code.as_i64() != Some(0))
            })
        })
}

fn plain_text_tool_failure(text: &str) -> bool {
    text.starts_with("git error:") || text.starts_with("git diff failed:")