diff --git a/apps/ai-game-creator-shell/src-tauri/src/agent.rs b/apps/ai-game-creator-shell/src-tauri/src/agent.rs
index db9db4abf..9770d524f 100644
--- a/apps/ai-game-creator-shell/src-tauri/src/agent.rs
+++ b/apps/ai-game-creator-shell/src-tauri/src/agent.rs
@@ -45,7 +45,7 @@ pub mod tool;
 pub(crate) use art_manifest::*;
 use claude_code_cli::*;
 pub(crate) use claude_code_cli::{
-    cancel_direct_claude_code_turn_at, claude_code_failure_to_llm_error,
+    cancel_direct_claude_code_turn_at, claude_code_failure_to_turn_error,
     direct_game_creator_claude_code_chat_at, direct_game_creator_claude_code_home_chat,
     game_creator_claude_code_cli_route_error, game_creator_claude_code_cli_version_identity,
 };
diff --git a/apps/ai-game-creator-shell/src-tauri/src/agent/claude_code_cli.rs b/apps/ai-game-creator-shell/src-tauri/src/agent/claude_code_cli.rs
index 1f5b65e88..01c63196c 100644
--- a/apps/ai-game-creator-shell/src-tauri/src/agent/claude_code_cli.rs
+++ b/apps/ai-game-creator-shell/src-tauri/src/agent/claude_code_cli.rs
@@ -255,6 +255,7 @@ async fn run_sidecar_turn(
         let mut terminal = None;
         let mut idle_rounds = 0_u64;
         let mut silent_ms = 0_u64;
+        let mut last_event_detail = None;
         loop {
             let line =
                 match tokio::time::timeout(CLAUDE_CODE_EVENT_IDLE_LOG_TIMEOUT, lines.next_line())
@@ -300,6 +301,13 @@ async fn run_sidecar_turn(
                     "Claude Agent SDK sidecar 输出不是有效 JSON：{error}；原文={detail}"
                 ))
             })?;
+            last_event_detail = serde_json::to_string(&value).ok().map(|detail| {
+                crate::agent::redact_agent_runtime_error(
+                    Path::new("__agc_no_project_root__"),
+                    &detail,
+                    480,
+                )
+            });
             match value.get("type").and_then(serde_json::Value::as_str) {
                 Some("event") => {
                     if let Some(event) = value.get("event") {
@@ -315,12 +323,15 @@ async fn run_sidecar_turn(
                 }
                 Some("error") => {
                     kill_claude_code_process_tree(pid);
+                    let detail = claude_result_error_detail(&value).or_else(|| {
+                        last_event_detail
+                            .clone()
+                            .filter(|detail| !detail.trim().is_empty())
+                    });
                     return Err(SidecarTurnFailure::message(
-                        value
-                            .get("message")
-                            .and_then(serde_json::Value::as_str)
-                            .unwrap_or("Claude Agent SDK sidecar 执行失败")
-                            .to_string(),
+                        detail
+                            .map(|detail| format!("Claude Agent SDK sidecar 执行失败：{detail}"))
+                            .unwrap_or_else(|| "Claude Agent SDK sidecar 执行失败".to_string()),
                     ));
                 }
                 _ => {}
@@ -329,13 +340,23 @@ async fn run_sidecar_turn(
         let status = child.wait().await.map_err(|error| {
             SidecarTurnFailure::message(format!("等待 Claude Agent SDK sidecar 结束失败：{error}"))
         })?;
+        let exit_status = status
+            .code()
+            .map(|code| code.to_string())
+            .unwrap_or_else(|| "signal".to_string());
         let result = terminal.ok_or_else(|| {
-            SidecarTurnFailure::message("Claude Agent SDK sidecar 缺少终态".to_string())
+            SidecarTurnFailure::message(format!(
+                "Claude Agent SDK sidecar 缺少终态；exitStatus={exit_status}；已收到 {} 个事件；最后事件={}",
+                event_count,
+                last_event_detail
+                    .filter(|detail| !detail.trim().is_empty())
+                    .unwrap_or_else(|| "<无有效事件>".to_string())
+            ))
         })?;
         if !status.success() {
-            return Err(SidecarTurnFailure::message(
-                "Claude Agent SDK sidecar 非零退出".to_string(),
-            ));
+            return Err(SidecarTurnFailure::message(format!(
+                "Claude Agent SDK sidecar 非零退出；exitStatus={exit_status}"
+            )));
         }
         Ok(SidecarTurnResult { result })
     };
@@ -658,22 +679,37 @@ fn configure_claude_code_environment(
 }
 
 fn claude_result_error_detail(value: &serde_json::Value) -> Option<String> {
+    fn value_detail(value: &serde_json::Value) -> Option<String> {
+        match value {
+            serde_json::Value::String(detail) => {
+                let detail = detail.trim();
+                (!detail.is_empty()).then(|| detail.chars().take(512).collect())
+            }
+            serde_json::Value::Object(object) => {
+                let detail = ["message", "detail", "error", "type", "code"]
+                    .into_iter()
+                    .filter_map(|field| object.get(field).and_then(value_detail))
+                    .collect::<Vec<_>>()
+                    .join("；");
+                (!detail.is_empty()).then_some(detail)
+            }
+            _ => None,
+        }
+    }
     let candidates = [
-        value.get("result").and_then(serde_json::Value::as_str),
-        value.get("error").and_then(serde_json::Value::as_str),
-        value.get("message").and_then(serde_json::Value::as_str),
+        value.get("result").and_then(value_detail),
+        value.get("error").and_then(value_detail),
+        value.get("message").and_then(value_detail),
         value
             .get("errors")
             .and_then(serde_json::Value::as_array)
             .and_then(|errors| errors.first())
-            .and_then(serde_json::Value::as_str),
+            .and_then(value_detail),
     ];
     candidates
         .into_iter()
         .flatten()
-        .map(str::trim)
         .find(|detail| !detail.is_empty())
-        .map(|detail| detail.chars().take(512).collect())
 }
 
 fn configure_claude_code_process(command: &mut tokio::process::Command) {
@@ -806,6 +842,30 @@ pub(crate) fn claude_code_failure_to_llm_error(detail: String) -> platform_llm::
     platform_llm::LlmError::Transport(detail)
 }
 
+/// 把 cc 的失败投影到 Direct 回合错误；平台 `LlmError::Timeout` / `EmptyResponse` 本身没有
+/// detail 字段，因此这两类必须在这里把 sidecar 的原始原因留在统一 `ModelCallFailed.detail` 中，
+/// 否则 stderr、超时阶段和缺失字段会在类型转换时丢掉，前端又只能显示固定兜底句。
+pub(crate) fn claude_code_failure_to_turn_error(
+    detail: String,
+) -> super::codex_app_server::turn_error::TurnError {
+    use super::codex_app_server::turn_error::{ModelCallFailed, ModelCallKind, TurnError};
+
+    let llm_error = claude_code_failure_to_llm_error(detail.clone());
+    match llm_error {
+        platform_llm::LlmError::Timeout { attempts } => {
+            TurnError::ModelCallFailed(ModelCallFailed {
+                kind: ModelCallKind::ResponseTimedOut { attempts },
+                detail,
+            })
+        }
+        platform_llm::LlmError::EmptyResponse => TurnError::ModelCallFailed(ModelCallFailed {
+            kind: ModelCallKind::EmptyResponse,
+            detail,
+        }),
+        other => TurnError::from_model_call(&other),
+    }
+}
+
 fn claude_code_failure_status_code(detail: &str) -> Option<u16> {
     let normalized = detail.to_ascii_lowercase();
     [
@@ -835,8 +895,15 @@ fn parse_claude_code_result(
     stdout: &[u8],
     request: &LlmRunRequest,
 ) -> Result<platform_llm::LlmRunResponse, platform_llm::LlmError> {
-    let value: serde_json::Value = serde_json::from_slice(stdout).map_err(|_| {
-        platform_llm::LlmError::Deserialize("Claude Code JSON 输出无效".to_string())
+    let value: serde_json::Value = serde_json::from_slice(stdout).map_err(|error| {
+        let detail = crate::agent::redact_agent_runtime_error(
+            Path::new("__agc_no_project_root__"),
+            &String::from_utf8_lossy(stdout),
+            480,
+        );
+        platform_llm::LlmError::Deserialize(format!(
+            "Claude Code JSON 输出无效：{error}；原文={detail}"
+        ))
     })?;
     if value.get("is_error").and_then(serde_json::Value::as_bool) == Some(true) {
         let detail = claude_result_error_detail(&value)
@@ -863,20 +930,33 @@ fn parse_claude_code_result(
         }
         (result, Vec::new())
     } else {
-        let envelope = structured
-            .or_else(|| serde_json::from_str(&result).ok())
-            .ok_or_else(|| {
-                platform_llm::LlmError::Deserialize(
-                    "Claude Code structured output 缺失".to_string(),
-                )
-            })?;
+        let envelope = match structured {
+            Some(value) => value,
+            None => serde_json::from_str(&result).map_err(|error| {
+                let detail = crate::agent::redact_agent_runtime_error(
+                    Path::new("__agc_no_project_root__"),
+                    &result,
+                    480,
+                );
+                platform_llm::LlmError::Deserialize(format!(
+                    "Claude Code structured output JSON 无效：{error}；原文={detail}"
+                ))
+            })?,
+        };
         let calls = envelope
             .get("toolCalls")
             .and_then(serde_json::Value::as_array)
             .ok_or_else(|| {
-                platform_llm::LlmError::Deserialize(
-                    "Claude Code structured output 缺少 toolCalls".to_string(),
-                )
+                let detail =
+                    serde_json::to_string(&envelope).unwrap_or_else(|_| "<不可序列化>".into());
+                let detail = crate::agent::redact_agent_runtime_error(
+                    Path::new("__agc_no_project_root__"),
+                    &detail,
+                    480,
+                );
+                platform_llm::LlmError::Deserialize(format!(
+                    "Claude Code structured output 缺少 toolCalls；原文={detail}"
+                ))
             })?;
         let calls = calls
             .iter()
@@ -886,17 +966,20 @@ fn parse_claude_code_result(
                     .get("name")
                     .and_then(serde_json::Value::as_str)
                     .ok_or_else(|| {
-                        platform_llm::LlmError::Deserialize(
-                            "Claude Code tool call 缺少 name".to_string(),
-                        )
+                        platform_llm::LlmError::Deserialize(format!(
+                            "Claude Code tool call 第 {} 项缺少 name；原文={}",
+                            index.saturating_add(1),
+                            serde_json::to_string(call).unwrap_or_else(|_| "<不可序列化>".into())
+                        ))
                     })?;
                 let arguments = call
                     .get("arguments")
                     .and_then(serde_json::Value::as_str)
                     .ok_or_else(|| {
-                        platform_llm::LlmError::Deserialize(
-                            "Claude Code tool call 缺少 arguments".to_string(),
-                        )
+                        platform_llm::LlmError::Deserialize(format!(
+                            "Claude Code tool call 第 {} 项缺少 arguments；name={name}",
+                            index.saturating_add(1)
+                        ))
                     })?;
                 if !request.function_tools.iter().any(|tool| tool.name == name) {
                     return Err(platform_llm::LlmError::Deserialize(
@@ -1733,6 +1816,63 @@ mod tests {
         assert!(error.to_string().contains("Authentication failed"));
     }
 
+    #[test]
+    fn preserves_claude_invalid_json_and_object_error_details() {
+        let invalid = parse_claude_code_result(
+            br#"{"is_error":false,"result":"unterminated""#,
+            &request(false),
+        )
+        .expect_err("invalid JSON must be rejected");
+        let invalid = invalid.to_string();
+        assert!(invalid.contains("Claude Code JSON 输出无效"), "{invalid}");
+        assert!(invalid.contains("line"), "{invalid}");
+        assert!(invalid.contains("unterminated"), "{invalid}");
+
+        let object_error = parse_claude_code_result(
+            br#"{"is_error":true,"error":{"type":"invalid_request_error","message":"HTTP 422: bad schema"}}"#,
+            &request(false),
+        )
+        .expect_err("object error must be rejected");
+        assert!(
+            object_error.to_string().contains("HTTP 422: bad schema"),
+            "{object_error}"
+        );
+    }
+
+    #[test]
+    fn cc_failure_projection_preserves_timeout_and_empty_response_detail() {
+        let timeout = super::claude_code_failure_to_turn_error(
+            "Claude Agent SDK sidecar 回合超时：连续 180000 ms 没有任何事件；stderr=OOM".into(),
+        );
+        match timeout {
+            super::codex_app_server::turn_error::TurnError::ModelCallFailed(payload) => {
+                assert!(matches!(
+                    payload.kind,
+                    super::codex_app_server::turn_error::ModelCallKind::ResponseTimedOut {
+                        attempts: 1
+                    }
+                ));
+                assert!(payload.detail.contains("180000"));
+                assert!(payload.detail.contains("OOM"));
+            }
+            other => panic!("expected timed out model failure, got {other:?}"),
+        }
+
+        let empty = super::claude_code_failure_to_turn_error(
+            "Claude Code 缺少最终回复；sidecar result 缺少 result 字段".into(),
+        );
+        match empty {
+            super::codex_app_server::turn_error::TurnError::ModelCallFailed(payload) => {
+                assert!(matches!(
+                    payload.kind,
+                    super::codex_app_server::turn_error::ModelCallKind::EmptyResponse
+                ));
+                assert!(payload.detail.contains("缺少 result 字段"));
+            }
+            other => panic!("expected empty response model failure, got {other:?}"),
+        }
+    }
+
     #[test]
     fn claude_failure_reuses_codex_error_categories() {
         assert!(matches!(
diff --git a/apps/ai-game-creator-shell/src-tauri/src/agent/codex_app_server/mod.rs b/apps/ai-game-creator-shell/src-tauri/src/agent/codex_app_server/mod.rs
index 5dae39023..4476da562 100644
--- a/apps/ai-game-creator-shell/src-tauri/src/agent/codex_app_server/mod.rs
+++ b/apps/ai-game-creator-shell/src-tauri/src/agent/codex_app_server/mod.rs
@@ -5428,9 +5428,7 @@ pub(crate) async fn direct_game_creator_codex_chat_at_with_optional_observer(
             observer,
         )
         .await
-        .map_err(|detail| {
-            TurnError::from_model_call(&crate::agent::claude_code_failure_to_llm_error(detail))
-        });
+        .map_err(crate::agent::claude_code_failure_to_turn_error);
     }
     game_creator_codex_app_server_validate_llm_config(&config.llm).map_err(|error| {
         TurnError::EnvironmentNotReady(EnvironmentNotReady {
diff --git a/apps/ai-game-creator-shell/src-tauri/src/agent/codex_cli.rs b/apps/ai-game-creator-shell/src-tauri/src/agent/codex_cli.rs
index bbe154ba8..3dfc50189 100644
--- a/apps/ai-game-creator-shell/src-tauri/src/agent/codex_cli.rs
+++ b/apps/ai-game-creator-shell/src-tauri/src/agent/codex_cli.rs
@@ -532,13 +532,14 @@ fn parse_game_creator_codex_cli_response(
     stdout: &[u8],
     request: &LlmRunRequest,
 ) -> Result<platform_llm::LlmRunResponse, platform_llm::LlmError> {
-    let stdout = std::str::from_utf8(stdout).map_err(|_| {
-        platform_llm::LlmError::Deserialize("Codex CLI Agent JSONL 不是 UTF-8".to_string())
+    let stdout = std::str::from_utf8(stdout).map_err(|error| {
+        platform_llm::LlmError::Deserialize(format!("Codex CLI Agent JSONL 不是 UTF-8：{error}"))
     })?;
     let mut response_id = None;
     let mut final_message = None;
     let mut usage = None;
     let mut completed = false;
+    let mut last_event_detail = None;
     for (index, line) in stdout.lines().enumerate() {
         if line.trim().is_empty() {
             continue;
@@ -554,6 +555,11 @@ fn parse_game_creator_codex_cli_response(
                 index.saturating_add(1)
             ))
         })?;
+        last_event_detail = Some(crate::agent::redact_agent_runtime_error(
+            Path::new("__agc_no_project_root__"),
+            line,
+            480,
+        ));
         match event.get("type").and_then(serde_json::Value::as_str) {
             Some("thread.started") => {
                 response_id = event
@@ -592,11 +598,14 @@ fn parse_game_creator_codex_cli_response(
                 }
             }
             Some("turn.failed") => {
-                let detail = event
+                let mut detail = event
                     .get("error")
                     .or_else(|| event.get("message"))
                     .map(serde_json::Value::to_string)
                     .unwrap_or_default();
+                if detail.trim().is_empty() {
+                    detail = serde_json::to_string(&event).unwrap_or_default();
+                }
                 let detail = crate::agent::redact_agent_runtime_error(
                     Path::new("__agc_no_project_root__"),
                     detail.trim_matches('"'),
@@ -612,9 +621,12 @@ fn parse_game_creator_codex_cli_response(
         }
     }
     if !completed {
-        return Err(platform_llm::LlmError::Deserialize(
-            "Codex CLI Agent 缺少 turn.completed 终态".to_string(),
-        ));
+        return Err(platform_llm::LlmError::Deserialize(format!(
+            "Codex CLI Agent 缺少 turn.completed 终态；最后事件={}",
+            last_event_detail
+                .filter(|detail| !detail.trim().is_empty())
+                .unwrap_or_else(|| "<无有效事件>".to_string())
+        )));
     }
     let text = final_message
         .filter(|text| !text.trim().is_empty())
@@ -622,18 +634,30 @@ fn parse_game_creator_codex_cli_response(
     let tool_calls = if request.function_tools.is_empty() {
         Vec::new()
     } else {
-        let envelope = serde_json::from_str::<serde_json::Value>(&text).map_err(|_| {
-            platform_llm::LlmError::Deserialize(
-                "Codex CLI Agent structured output 不是严格 JSON".to_string(),
-            )
+        let envelope = serde_json::from_str::<serde_json::Value>(&text).map_err(|error| {
+            let detail = crate::agent::redact_agent_runtime_error(
+                Path::new("__agc_no_project_root__"),
+                &text,
+                480,
+            );
+            platform_llm::LlmError::Deserialize(format!(
+                "Codex CLI Agent structured output JSON 无效：{error}；原文={detail}"
+            ))
         })?;
         let calls = envelope
             .get("toolCalls")
             .and_then(serde_json::Value::as_array)
             .ok_or_else(|| {
-                platform_llm::LlmError::Deserialize(
-                    "Codex CLI Agent structured output 缺少 toolCalls".to_string(),
-                )
+                let detail =
+                    serde_json::to_string(&envelope).unwrap_or_else(|_| "<不可序列化>".to_string());
+                let detail = crate::agent::redact_agent_runtime_error(
+                    Path::new("__agc_no_project_root__"),
+                    &detail,
+                    480,
+                );
+                platform_llm::LlmError::Deserialize(format!(
+                    "Codex CLI Agent structured output 缺少 toolCalls；原文={detail}"
+                ))
             })?;
         calls
             .iter()
@@ -643,17 +667,26 @@ fn parse_game_creator_codex_cli_response(
                     .get("name")
                     .and_then(serde_json::Value::as_str)
                     .ok_or_else(|| {
-                        platform_llm::LlmError::Deserialize(
-                            "Codex CLI Agent tool call 缺少 name".to_string(),
-                        )
+                        let detail = serde_json::to_string(call)
+                            .unwrap_or_else(|_| "<不可序列化>".to_string());
+                        let detail = crate::agent::redact_agent_runtime_error(
+                            Path::new("__agc_no_project_root__"),
+                            &detail,
+                            480,
+                        );
+                        platform_llm::LlmError::Deserialize(format!(
+                            "Codex CLI Agent tool call 第 {} 项缺少 name；原文={detail}",
+                            index.saturating_add(1)
+                        ))
                     })?;
                 let arguments = call
                     .get("arguments")
                     .and_then(serde_json::Value::as_str)
                     .ok_or_else(|| {
-                        platform_llm::LlmError::Deserialize(
-                            "Codex CLI Agent tool call 缺少 arguments".to_string(),
-                        )
+                        platform_llm::LlmError::Deserialize(format!(
+                            "Codex CLI Agent tool call 第 {} 项缺少 arguments；name={name}",
+                            index.saturating_add(1)
+                        ))
                     })?;
                 if !request.function_tools.iter().any(|tool| tool.name == name) {
                     return Err(platform_llm::LlmError::Deserialize(
@@ -1248,6 +1281,15 @@ mod tests {
         assert!(failed_text.contains("HTTP 502 upstream overloaded"));
         assert!(!failed_text.contains("fixture-secret"));
 
+        let failed_without_message = parse_game_creator_codex_cli_response(
+            b"{\"type\":\"turn.failed\",\"code\":\"EPIPE\",\"status\":\"closed\"}\n",
+            &request,
+        )
+        .expect_err("failed terminal without message must retain event detail");
+        let failed_without_message = failed_without_message.to_string();
+        assert!(failed_without_message.contains("EPIPE"));
+        assert!(failed_without_message.contains("closed"));
+
         let invalid = parse_game_creator_codex_cli_response(
             b"{not-json Authorization: Bearer fixture-secret}\n",
             &request,
@@ -1259,6 +1301,35 @@ mod tests {
         assert!(!invalid_text.contains("fixture-secret"));
     }
 
+    #[test]
+    fn codex_cli_mode_preserves_missing_terminal_and_structured_output_details() {
+        let request = tool_request();
+        let missing_terminal = parse_game_creator_codex_cli_response(
+            b"{\"type\":\"item.completed\",\"item\":{\"type\":\"error\",\"message\":\"IPC EPIPE\"}}\n",
+            &request,
+        )
+        .expect_err("missing terminal must retain the last protocol event");
+        let missing_terminal = missing_terminal.to_string();
+        assert!(missing_terminal.contains("缺少 turn.completed 终态"));
+        assert!(missing_terminal.contains("IPC EPIPE"));
+
+        let malformed_event = serde_json::json!({
+            "type": "item.completed",
+            "item": { "type": "agent_message", "text": r#"{"toolCalls":["# }
+        });
+        let malformed_stdout = format!(
+            "{}\n{{\"type\":\"turn.completed\"}}\n",
+            serde_json::to_string(&malformed_event).expect("serialize malformed event")
+        );
+        let malformed_structured =
+            parse_game_creator_codex_cli_response(malformed_stdout.as_bytes(), &request)
+                .expect_err("malformed structured output must retain parse detail");
+        let malformed_structured = malformed_structured.to_string();
+        assert!(malformed_structured.contains("structured output JSON 无效"));
+        assert!(malformed_structured.contains("line"));
+        assert!(malformed_structured.contains("toolCalls"));
+    }
+
     #[cfg(unix)]
     #[tokio::test]
     async fn codex_cli_mode_builds_ephemeral_json_exec_with_prompt_on_stdin() {
diff --git a/docs/adr/【ADR】AGC命令错误结构化与错误报告口径-2026-10-01.md b/docs/adr/【ADR】AGC命令错误结构化与错误报告口径-2026-10-01.md
index 1390fd2d7..dcb1a5d35 100644
--- a/docs/adr/【ADR】AGC命令错误结构化与错误报告口径-2026-10-01.md
+++ b/docs/adr/【ADR】AGC命令错误结构化与错误报告口径-2026-10-01.md
@@ -107,7 +107,7 @@ DirectProject 已经解决过同一类问题（[`【ADR】DirectProject命令接
 - 脱敏只替换敏感值、完整 URL、绝对路径和私钥内容；字段名（例如 `Authorization`、`token`、`api_key`）保留，便于判断错误类别。原始凭据值不进入用户文本、应用日志或项目诊断。
 - 上游 app-server 映射保留 `message` / `additionalDetails` 的脱敏摘要；因此 401/403/408/429/413/5xx 等状态不会因为分类为 transport 或 native 而丢失正文。
 - Claude Code（cc）侧车的非零退出、RPC `error`、stdout JSON/UTF-8 解析失败、stderr 和静默超时也走同一映射；侧车 stderr 只在有界收口窗口内读取并进入同一脱敏 detail，不再只写裸 `eprintln!`。
-- Codex CLI / Claude sidecar 的 JSONL/JSON 解析失败和失败终态保留解析错误、失败事件正文与有界安全片段，不再把无效 JSON、`turn.failed` 或缺失终态统一压成单一类别。
+- Codex CLI / Claude sidecar 的 JSONL/JSON 解析失败、失败终态、缺失终态、超时和空回执都保留解析错误、失败事件正文与有界安全片段；`LlmError` 没有 detail 字段的超时/空回执由 Direct `ModelCallFailed.detail` 补回，不再把这些协议事实统一压成单一类别。
 - HTTP 409 只有明确包含泥点不足事实时才映射为 `paidCreditsInsufficient`；Claude Code 的普通 409 冲突保留为 `upstreamFailed`。
 - `hostDropped` 携带可选的脱敏 `detail`：panic hook 能取得的负载和位置随原回合占用进入失败事件；普通 Drop 仅记录“退出时未写终态、未观察到 panic”，不推断为网络中断。旧版本无 `detail` 的事件继续可读，界面明确标注旧事件未记录原因。
 - DirectProject 控制器的取消待发、终止、附件上传、项目历史读取和发送前置异常也复用同一份前端精确脱敏出口；这些非回合错误不得直接把 `Error.message` 原文写入状态栏、composer 或历史错误行。
diff --git a/docs/project-memory/plans/【实施计划】AGC错误具体文本展示-2026-10-04.md b/docs/project-memory/plans/【实施计划】AGC错误具体文本展示-2026-10-04.md
index 76da95c54..48c76d67a 100644
--- a/docs/project-memory/plans/【实施计划】AGC错误具体文本展示-2026-10-04.md
+++ b/docs/project-memory/plans/【实施计划】AGC错误具体文本展示-2026-10-04.md
@@ -17,7 +17,7 @@ Parent Milestone: `【里程碑】AGC错误具体文本展示-2026-10-04.md`
 8. 项目资源编辑/上传/预览/恢复队列/生成结果回读的 UI 错误统一使用 `normalizeDiagnosticText`，不再直出 `Error.message`。
 9. 应用壳、运行配置、认证状态、插件启动、运行预览和策划会话的非结构化错误统一使用 `visibleClientErrorMessage`。
 10. 资产导入、邀请码、策划工作区、发布封面/截图和素材命令的 UI 错误沿用同一共享出口。
-11. Codex CLI / Claude sidecar 的解析失败与失败终态保留有界脱敏正文，避免协议错误只剩类别码。
+11. Codex CLI / Claude sidecar 的解析失败、失败终态、缺失终态、超时和空回执保留有界脱敏正文；即使平台 `LlmError` 变体没有 detail 字段，也由统一 Direct `ModelCallFailed.detail` 继续携带原始原因。
 
 ## 实现顺序