use std::path::PathBuf;use std::sync::Arc;use codex_core::CodexThread;use codex_protocol::ThreadId;use codex_protocol::parse_command::ParsedCommand;use codex_protocol::protocol::Op;use codex_protocol::protocol::ReviewDecision;use rmcp::model::ErrorData;use rmcp::model::RequestId;use serde::Deserialize;use serde::Serialize;use serde_json::Value;use serde_json::json;use tracing::error;/// Conforms to the MCP elicitation request params shape, so it can be used as/// the `params` field of an `elicitation/create` request.#[derive(Debug, Deserialize, Serialize)]pub struct ExecApprovalElicitRequestParams { // These fields are required so that `params` // conforms to ElicitRequestParams. pub message: String, #[serde(rename = "requestedSchema")] pub requested_schema: Value, // These are additional fields the client can use to // correlate the request with the codex tool call. #[serde(rename = "threadId")] pub thread_id: ThreadId, pub codex_elicitation: String, pub codex_mcp_tool_call_id: String, pub codex_event_id: String, pub codex_call_id: String, pub codex_command: Vec<String>, pub codex_cwd: PathBuf, pub codex_parsed_cmd: Vec<ParsedCommand>,}// TODO(mbolin): ExecApprovalResponse does not conform to ElicitResult. See:// - https://github.com/modelcontextprotocol/modelcontextprotocol/blob/f962dc1780fa5eed7fb7c8a0232f1fc83ef220cd/schema/2025-06-18/schema.json#L617-L636// - https://modelcontextprotocol.io/specification/draft/client/elicitation#protocol-messages// It should have "action" and "content" fields.#[derive(Debug, Serialize, Deserialize)]pub struct ExecApprovalResponse { pub decision: ReviewDecision,}#[allow(clippy::too_many_arguments)]pub(crate) async fn handle_exec_approval_request( command: Vec<String>, cwd: PathBuf, outgoing: Arc<crate::outgoing_message::OutgoingMessageSender>, codex: Arc<CodexThread>, request_id: RequestId, tool_call_id: String, event_id: String, call_id: String, approval_id: String, codex_parsed_cmd: Vec<ParsedCommand>, thread_id: ThreadId,) { let escaped_command = shlex::try_join(command.iter().map(String::as_str)).unwrap_or_else(|_| command.join(" ")); let message = format!( "Allow Codex to run `{escaped_command}` in `{cwd}`?", cwd = cwd.to_string_lossy() ); let params = ExecApprovalElicitRequestParams { message, requested_schema: json!({"type":"object","properties":{}}), thread_id, codex_elicitation: "exec-approval".to_string(), codex_mcp_tool_call_id: tool_call_id.clone(), codex_event_id: event_id.clone(), codex_call_id: call_id, codex_command: command, codex_cwd: cwd, codex_parsed_cmd, }; let params_json = match serde_json::to_value(¶ms) { Ok(value) => value, Err(err) => { let message = format!("Failed to serialize ExecApprovalElicitRequestParams: {err}"); error!("{message}"); outgoing .send_error(request_id.clone(), ErrorData::invalid_params(message, None)) .await; return; } }; let on_response = outgoing .send_request("elicitation/create", Some(params_json)) .await; // Listen for the response on a separate task so we don't block the main agent loop. { let codex = codex.clone(); let approval_id = approval_id.clone(); let event_id = event_id.clone(); tokio::spawn(async move { on_exec_approval_response(approval_id, event_id, on_response, codex).await; }); }}async fn on_exec_approval_response( approval_id: String, event_id: String, receiver: tokio::sync::oneshot::Receiver<serde_json::Value>, codex: Arc<CodexThread>,) { let response = receiver.await; let value = match response { Ok(value) => value, Err(err) => { error!("request failed: {err:?}"); return; } }; // Try to deserialize `value` and then make the appropriate call to `codex`. let response = serde_json::from_value::<ExecApprovalResponse>(value).unwrap_or_else(|err| { error!("failed to deserialize ExecApprovalResponse: {err}"); // If we cannot deserialize the response, we deny the request to be // conservative. ExecApprovalResponse { decision: ReviewDecision::Denied, } }); if let Err(err) = codex .submit(Op::ExecApproval { id: approval_id, turn_id: Some(event_id), decision: response.decision, }) .await { error!("failed to submit ExecApproval: {err}"); }}