use thiserror::Error;
#[derive(Debug, Error)]
pub enum ToolError {
#[error("invalid arguments: {0}")]
InvalidArgs(String),
#[error("path not allowed: {0}")]
PathNotAllowed(String),
#[error("tool execution denied by user")]
Denied,
#[error("IO error: {0}")]
Io(#[from] std::io::Error),
#[error("tool {name} failed: {message}")]
Failed { name: String, message: String },
#[error("JSON error: {0}")]
Json(#[from] serde_json::Error),
}