[codex] remove responses command (#19640)

This removes the hidden `codex responses` CLI subcommand after
confirming no downstream callers rely on it, deleting the raw Responses
passthrough implementation, unregistering the subcommand, and dropping
the now-unused CLI dependencies on `codex-api` and
`codex-model-provider`.

codex-rs/Cargo.lock

@@ -2099,7 +2099,6 @@ dependencies = [
  "assert_matches",
  "clap",
  "clap_complete",
- "codex-api",
  "codex-app-server",
  "codex-app-server-protocol",
  "codex-app-server-test-client",
@@ -2116,7 +2115,6 @@ dependencies = [
  "codex-login",
  "codex-mcp",
  "codex-mcp-server",
- "codex-model-provider",
  "codex-models-manager",
  "codex-protocol",
  "codex-responses-api-proxy",

codex-rs/cli/Cargo.toml

@@ -24,7 +24,6 @@ codex-app-server = { workspace = true }
 codex-app-server-protocol = { workspace = true }
 codex-app-server-test-client = { workspace = true }
 codex-arg0 = { workspace = true }
-codex-api = { workspace = true }
 codex-chatgpt = { workspace = true }
 codex-cloud-tasks = { path = "../cloud-tasks" }
 codex-utils-cli = { workspace = true }
@@ -39,7 +38,6 @@ codex-login = { workspace = true }
 codex-mcp = { workspace = true }
 codex-mcp-server = { workspace = true }
 codex-models-manager = { workspace = true }
-codex-model-provider = { workspace = true }
 codex-protocol = { workspace = true }
 codex-responses-api-proxy = { workspace = true }
 codex-rmcp-client = { workspace = true }

codex-rs/cli/src/main.rs

@@ -43,14 +43,11 @@ mod app_cmd;
 mod desktop_app;
 mod marketplace_cmd;
 mod mcp_cmd;
-mod responses_cmd;
 #[cfg(not(windows))]
 mod wsl_paths;
 
 use crate::marketplace_cmd::MarketplaceCli;
 use crate::mcp_cmd::McpCli;
-use crate::responses_cmd::ResponsesCommand;
-use crate::responses_cmd::run_responses_command;
 
 use codex_core::build_models_manager;
 use codex_core::clear_memory_roots_contents;
@@ -163,10 +160,6 @@ enum Subcommand {
     #[clap(hide = true)]
     ResponsesApiProxy(ResponsesApiProxyArgs),
 
-    /// Internal: send one raw Responses API payload through Codex auth.
-    #[clap(hide = true)]
-    Responses(ResponsesCommand),
-
     /// Internal: relay stdio to a Unix domain socket.
     #[clap(hide = true, name = "stdio-to-uds")]
     StdioToUds(StdioToUdsCommand),
@@ -1130,14 +1123,6 @@ async fn cli_main(arg0_paths: Arg0DispatchPaths) -> anyhow::Result<()> {
             tokio::task::spawn_blocking(move || codex_responses_api_proxy::run_main(args))
                 .await??;
         }
-        Some(Subcommand::Responses(ResponsesCommand {})) => {
-            reject_remote_mode_for_subcommand(
-                root_remote.as_deref(),
-                root_remote_auth_token_env.as_deref(),
-                "responses",
-            )?;
-            run_responses_command(root_config_overrides).await?;
-        }
         Some(Subcommand::StdioToUds(cmd)) => {
             reject_remote_mode_for_subcommand(
                 root_remote.as_deref(),
@@ -1837,12 +1822,13 @@ mod tests {
     }
 
     #[test]
-    fn responses_subcommand_is_hidden_from_help_but_parses() {
+    fn responses_subcommand_is_not_registered() {
-        let help = MultitoolCli::command().render_help().to_string();
+        let command = MultitoolCli::command();
-        assert!(!help.contains("responses"));
+        assert!(
-
+            command
-        let cli = MultitoolCli::try_parse_from(["codex", "responses"]).expect("parse");
+                .get_subcommands()
-        assert!(matches!(cli.subcommand, Some(Subcommand::Responses(_))));
+                .all(|subcommand| subcommand.get_name() != "responses")
+        );
     }
 
     fn help_from_args(args: &[&str]) -> String {

codex-rs/cli/src/responses_cmd.rs

@@ -1,264 +0,0 @@
-use clap::Parser;
-use codex_core::config::Config;
-use codex_model_provider::create_model_provider;
-use codex_utils_cli::CliConfigOverrides;
-use serde_json::json;
-use tokio::io::AsyncReadExt;
-
-#[derive(Debug, Parser)]
-pub(crate) struct ResponsesCommand {}
-
-pub(crate) async fn run_responses_command(
-    root_config_overrides: CliConfigOverrides,
-) -> anyhow::Result<()> {
-    let mut payload_text = String::new();
-    tokio::io::stdin().read_to_string(&mut payload_text).await?;
-    if payload_text.trim().is_empty() {
-        anyhow::bail!("expected Responses API JSON payload on stdin");
-    }
-
-    let payload: serde_json::Value = serde_json::from_str(&payload_text)
-        .map_err(|err| anyhow::anyhow!("failed to parse Responses API JSON payload: {err}"))?;
-    if payload.get("stream").and_then(serde_json::Value::as_bool) != Some(true) {
-        anyhow::bail!("codex responses expects a streaming payload with `\"stream\": true`");
-    }
-
-    let cli_overrides = root_config_overrides
-        .parse_overrides()
-        .map_err(anyhow::Error::msg)?;
-    let config = Config::load_with_cli_overrides(cli_overrides).await?;
-    let base_auth_manager = codex_login::AuthManager::shared_from_config(
-        &config, /*enable_codex_api_key_env*/ true,
-    );
-    let model_provider = create_model_provider(config.model_provider, Some(base_auth_manager));
-    let api_provider = model_provider.api_provider().await?;
-    let api_auth = model_provider.api_auth().await?;
-    let client = codex_api::ResponsesClient::new(
-        codex_api::ReqwestTransport::new(codex_login::default_client::build_reqwest_client()),
-        api_provider,
-        api_auth,
-    );
-
-    let mut stream = client
-        .stream(
-            payload,
-            Default::default(),
-            codex_api::Compression::None,
-            /*turn_state*/ None,
-        )
-        .await?;
-    while let Some(event) = stream.rx_event.recv().await {
-        let event = event?;
-        println!("{}", serde_json::to_string(&response_event_to_json(event))?);
-    }
-
-    Ok(())
-}
-
-fn response_event_to_json(event: codex_api::ResponseEvent) -> serde_json::Value {
-    match event {
-        codex_api::ResponseEvent::Created => {
-            json!({ "type": "response.created", "response": {} })
-        }
-        codex_api::ResponseEvent::OutputItemDone(item) => {
-            json!({ "type": "response.output_item.done", "item": item })
-        }
-        codex_api::ResponseEvent::OutputItemAdded(item) => {
-            json!({ "type": "response.output_item.added", "item": item })
-        }
-        codex_api::ResponseEvent::ServerModel(model) => {
-            json!({ "type": "response.server_model", "model": model })
-        }
-        codex_api::ResponseEvent::ModelVerifications(verifications) => {
-            json!({ "type": "response.model_verifications", "verifications": verifications })
-        }
-        codex_api::ResponseEvent::ServerReasoningIncluded(included) => {
-            json!({ "type": "response.server_reasoning_included", "included": included })
-        }
-        codex_api::ResponseEvent::Completed {
-            response_id,
-            token_usage,
-            end_turn,
-        } => {
-            let mut response = match token_usage {
-                Some(token_usage) => json!({
-                    "id": response_id,
-                    "usage": {
-                        "input_tokens": token_usage.input_tokens,
-                        "input_tokens_details": {
-                            "cached_tokens": token_usage.cached_input_tokens,
-                        },
-                        "output_tokens": token_usage.output_tokens,
-                        "output_tokens_details": {
-                            "reasoning_tokens": token_usage.reasoning_output_tokens,
-                        },
-                        "total_tokens": token_usage.total_tokens,
-                    },
-                }),
-                None => json!({ "id": response_id }),
-            };
-            if let Some(end_turn) = end_turn {
-                response["end_turn"] = json!(end_turn);
-            }
-            json!({ "type": "response.completed", "response": response })
-        }
-        codex_api::ResponseEvent::OutputTextDelta(delta) => {
-            json!({ "type": "response.output_text.delta", "delta": delta })
-        }
-        codex_api::ResponseEvent::ToolCallInputDelta {
-            item_id,
-            call_id,
-            delta,
-        } => {
-            json!({
-                "type": "response.tool_call_input.delta",
-                "item_id": item_id,
-                "call_id": call_id,
-                "delta": delta,
-            })
-        }
-        codex_api::ResponseEvent::ReasoningSummaryDelta {
-            delta,
-            summary_index,
-        } => json!({
-            "type": "response.reasoning_summary_text.delta",
-            "delta": delta,
-            "summary_index": summary_index,
-        }),
-        codex_api::ResponseEvent::ReasoningContentDelta {
-            delta,
-            content_index,
-        } => json!({
-            "type": "response.reasoning_text.delta",
-            "delta": delta,
-            "content_index": content_index,
-        }),
-        codex_api::ResponseEvent::ReasoningSummaryPartAdded { summary_index } => {
-            json!({
-                "type": "response.reasoning_summary_part.added",
-                "summary_index": summary_index,
-            })
-        }
-        codex_api::ResponseEvent::RateLimits(rate_limits) => {
-            json!({ "type": "response.rate_limits", "rate_limits": rate_limits })
-        }
-        codex_api::ResponseEvent::ModelsEtag(etag) => {
-            json!({ "type": "response.models_etag", "etag": etag })
-        }
-    }
-}
-
-#[cfg(test)]
-mod tests {
-    use super::response_event_to_json;
-    use codex_protocol::protocol::TokenUsage;
-    use pretty_assertions::assert_eq;
-    use serde_json::json;
-
-    #[test]
-    fn response_events_keep_replayable_response_envelopes() {
-        let created = response_event_to_json(codex_api::ResponseEvent::Created);
-        assert_eq!(created, json!({"type": "response.created", "response": {}}));
-
-        let completed = response_event_to_json(codex_api::ResponseEvent::Completed {
-            response_id: "resp-1".to_string(),
-            token_usage: Some(TokenUsage {
-                input_tokens: 10,
-                cached_input_tokens: 4,
-                output_tokens: 7,
-                reasoning_output_tokens: 3,
-                total_tokens: 17,
-            }),
-            end_turn: Some(true),
-        });
-        assert_eq!(
-            completed,
-            json!({
-                "type": "response.completed",
-                "response": {
-                    "id": "resp-1",
-                    "usage": {
-                        "input_tokens": 10,
-                        "input_tokens_details": {
-                            "cached_tokens": 4,
-                        },
-                        "output_tokens": 7,
-                        "output_tokens_details": {
-                            "reasoning_tokens": 3,
-                        },
-                        "total_tokens": 17,
-                    },
-                    "end_turn": true,
-                },
-            })
-        );
-
-        let completed_without_usage = response_event_to_json(codex_api::ResponseEvent::Completed {
-            response_id: "resp-2".to_string(),
-            token_usage: None,
-            end_turn: Some(false),
-        });
-        assert_eq!(
-            completed_without_usage,
-            json!({"type": "response.completed", "response": {"id": "resp-2", "end_turn": false}})
-        );
-
-        let completed_without_usage_or_end_turn =
-            response_event_to_json(codex_api::ResponseEvent::Completed {
-                response_id: "resp-3".to_string(),
-                token_usage: None,
-                end_turn: None,
-            });
-        assert_eq!(
-            completed_without_usage_or_end_turn,
-            json!({"type": "response.completed", "response": {"id": "resp-3"}})
-        );
-    }
-
-    #[test]
-    fn reasoning_deltas_use_responses_event_names() {
-        let summary = response_event_to_json(codex_api::ResponseEvent::ReasoningSummaryDelta {
-            delta: "plan".to_string(),
-            summary_index: 1,
-        });
-        assert_eq!(
-            summary,
-            json!({
-                "type": "response.reasoning_summary_text.delta",
-                "delta": "plan",
-                "summary_index": 1,
-            })
-        );
-
-        let content = response_event_to_json(codex_api::ResponseEvent::ReasoningContentDelta {
-            delta: "detail".to_string(),
-            content_index: 2,
-        });
-        assert_eq!(
-            content,
-            json!({
-                "type": "response.reasoning_text.delta",
-                "delta": "detail",
-                "content_index": 2,
-            })
-        );
-    }
-
-    #[test]
-    fn tool_call_input_delta_uses_responses_event_name() {
-        let delta = response_event_to_json(codex_api::ResponseEvent::ToolCallInputDelta {
-            item_id: "item-1".to_string(),
-            call_id: Some("call-1".to_string()),
-            delta: "patch".to_string(),
-        });
-        assert_eq!(
-            delta,
-            json!({
-                "type": "response.tool_call_input.delta",
-                "item_id": "item-1",
-                "call_id": "call-1",
-                "delta": "patch",
-            })
-        );
-    }
-}