diff --git a/src-tauri/src/app_config.rs b/src-tauri/src/app_config.rs
index 18e3fbec8..f2bb99eef 100644
--- a/src-tauri/src/app_config.rs
+++ b/src-tauri/src/app_config.rs
@@ -352,49 +352,6 @@ impl FromStr for AppType {
     }
 }
 
-/// 通用配置片段（按应用分治）
-#[derive(Debug, Clone, Serialize, Deserialize, Default)]
-pub struct CommonConfigSnippets {
-    #[serde(default, skip_serializing_if = "Option::is_none")]
-    pub claude: Option<String>,
-
-    #[serde(default, skip_serializing_if = "Option::is_none")]
-    pub codex: Option<String>,
-
-    #[serde(default, skip_serializing_if = "Option::is_none")]
-    pub gemini: Option<String>,
-
-    #[serde(default, skip_serializing_if = "Option::is_none")]
-    pub opencode: Option<String>,
-
-    #[serde(default, skip_serializing_if = "Option::is_none")]
-    pub openclaw: Option<String>,
-}
-
-impl CommonConfigSnippets {
-    /// 获取指定应用的通用配置片段
-    pub fn get(&self, app: &AppType) -> Option<&String> {
-        match app {
-            AppType::Claude => self.claude.as_ref(),
-            AppType::Codex => self.codex.as_ref(),
-            AppType::Gemini => self.gemini.as_ref(),
-            AppType::OpenCode => self.opencode.as_ref(),
-            AppType::OpenClaw => self.openclaw.as_ref(),
-        }
-    }
-
-    /// 设置指定应用的通用配置片段
-    pub fn set(&mut self, app: &AppType, snippet: Option<String>) {
-        match app {
-            AppType::Claude => self.claude = snippet,
-            AppType::Codex => self.codex = snippet,
-            AppType::Gemini => self.gemini = snippet,
-            AppType::OpenCode => self.opencode = snippet,
-            AppType::OpenClaw => self.openclaw = snippet,
-        }
-    }
-}
-
 /// 多应用配置结构（向后兼容）
 #[derive(Debug, Clone, Serialize, Deserialize)]
 pub struct MultiAppConfig {
@@ -412,12 +369,6 @@ pub struct MultiAppConfig {
     /// Claude Skills 配置
     #[serde(default)]
     pub skills: SkillStore,
-    /// 通用配置片段（按应用分治）
-    #[serde(default)]
-    pub common_config_snippets: CommonConfigSnippets,
-    /// Claude 通用配置片段（旧字段，用于向后兼容迁移）
-    #[serde(default, skip_serializing_if = "Option::is_none")]
-    pub claude_common_config_snippet: Option<String>,
 }
 
 fn default_version() -> u32 {
@@ -439,8 +390,6 @@ impl Default for MultiAppConfig {
             mcp: McpRoot::default(),
             prompts: PromptRoot::default(),
             skills: SkillStore::default(),
-            common_config_snippets: CommonConfigSnippets::default(),
-            claude_common_config_snippet: None,
         }
     }
 }
@@ -534,15 +483,6 @@ impl MultiAppConfig {
             updated = true;
         }
 
-        // 迁移通用配置片段：claude_common_config_snippet → common_config_snippets.claude
-        if let Some(old_claude_snippet) = config.claude_common_config_snippet.take() {
-            log::info!(
-                "迁移通用配置：claude_common_config_snippet → common_config_snippets.claude"
-            );
-            config.common_config_snippets.claude = Some(old_claude_snippet);
-            updated = true;
-        }
-
         if updated {
             log::info!("配置结构已更新（包括 MCP 迁移或 Prompt 自动导入），保存配置...");
             config.save()?;
diff --git a/src-tauri/src/commands/config.rs b/src-tauri/src/commands/config.rs
index 8edf15617..ca7759f4c 100644
--- a/src-tauri/src/commands/config.rs
+++ b/src-tauri/src/commands/config.rs
@@ -164,38 +164,6 @@ pub async fn open_app_config_folder(handle: AppHandle) -> Result<bool, String> {
     Ok(true)
 }
 
-#[tauri::command]
-pub async fn get_claude_common_config_snippet(
-    state: tauri::State<'_, crate::store::AppState>,
-) -> Result<Option<String>, String> {
-    state
-        .db
-        .get_config_snippet("claude")
-        .map_err(|e| e.to_string())
-}
-
-#[tauri::command]
-pub async fn set_claude_common_config_snippet(
-    snippet: String,
-    state: tauri::State<'_, crate::store::AppState>,
-) -> Result<(), String> {
-    if !snippet.trim().is_empty() {
-        serde_json::from_str::<serde_json::Value>(&snippet).map_err(invalid_json_format_error)?;
-    }
-
-    let value = if snippet.trim().is_empty() {
-        None
-    } else {
-        Some(snippet)
-    };
-
-    state
-        .db
-        .set_config_snippet("claude", value)
-        .map_err(|e| e.to_string())?;
-    Ok(())
-}
-
 #[tauri::command]
 pub async fn get_common_config_snippet(
     app_type: String,
@@ -263,26 +231,3 @@ pub async fn set_common_config_snippet(
     }
     Ok(())
 }
-
-#[tauri::command]
-pub async fn extract_common_config_snippet(
-    appType: String,
-    settingsConfig: Option<String>,
-    state: tauri::State<'_, crate::store::AppState>,
-) -> Result<String, String> {
-    let app = AppType::from_str(&appType).map_err(|e| e.to_string())?;
-
-    if let Some(settings_config) = settingsConfig.filter(|s| !s.trim().is_empty()) {
-        let settings: serde_json::Value =
-            serde_json::from_str(&settings_config).map_err(invalid_json_format_error)?;
-
-        return crate::services::provider::ProviderService::extract_common_config_snippet_from_settings(
-            app,
-            &settings,
-        )
-        .map_err(|e| e.to_string());
-    }
-
-    crate::services::provider::ProviderService::extract_common_config_snippet(&state, app)
-        .map_err(|e| e.to_string())
-}
diff --git a/src-tauri/src/commands/provider.rs b/src-tauri/src/commands/provider.rs
index ef9c1bb0e..590acd7c7 100644
--- a/src-tauri/src/commands/provider.rs
+++ b/src-tauri/src/commands/provider.rs
@@ -97,27 +97,7 @@ pub fn switch_provider(
 }
 
 fn import_default_config_internal(state: &AppState, app_type: AppType) -> Result<bool, AppError> {
-    let imported = ProviderService::import_default_config(state, app_type.clone())?;
-
-    if imported {
-        // Extract common config snippet (mirrors old startup logic in lib.rs)
-        if state
-            .db
-            .get_config_snippet(app_type.as_str())
-            .ok()
-            .flatten()
-            .is_none()
-        {
-            match ProviderService::extract_common_config_snippet(state, app_type.clone()) {
-                Ok(snippet) if !snippet.is_empty() && snippet != "{}" => {
-                    let _ = state
-                        .db
-                        .set_config_snippet(app_type.as_str(), Some(snippet));
-                }
-                _ => {}
-            }
-        }
-    }
+    let imported = ProviderService::import_default_config(state, app_type)?;
 
     Ok(imported)
 }
@@ -187,6 +167,12 @@ pub fn read_live_provider_settings(app: String) -> Result<serde_json::Value, Str
     ProviderService::read_live_settings(app_type).map_err(|e| e.to_string())
 }
 
+#[tauri::command]
+pub fn patch_claude_live_settings(patch: serde_json::Value) -> Result<bool, String> {
+    ProviderService::patch_claude_live(patch).map_err(|e| e.to_string())?;
+    Ok(true)
+}
+
 #[tauri::command]
 pub async fn test_api_endpoints(
     urls: Vec<String>,
diff --git a/src-tauri/src/database/migration.rs b/src-tauri/src/database/migration.rs
index 3c52e7127..f42431587 100644
--- a/src-tauri/src/database/migration.rs
+++ b/src-tauri/src/database/migration.rs
@@ -58,9 +58,6 @@ impl Database {
         // 4. 迁移 Skills
         Self::migrate_skills(tx, config)?;
 
-        // 5. 迁移 Common Config
-        Self::migrate_common_config(tx, config)?;
-
         Ok(())
     }
 
@@ -212,34 +209,4 @@ impl Database {
 
         Ok(())
     }
-
-    /// 迁移通用配置片段
-    fn migrate_common_config(
-        tx: &rusqlite::Transaction<'_>,
-        config: &MultiAppConfig,
-    ) -> Result<(), AppError> {
-        if let Some(snippet) = &config.common_config_snippets.claude {
-            tx.execute(
-                "INSERT OR REPLACE INTO settings (key, value) VALUES (?1, ?2)",
-                params!["common_config_claude", snippet],
-            )
-            .map_err(|e| AppError::Database(format!("Migrate settings failed: {e}")))?;
-        }
-        if let Some(snippet) = &config.common_config_snippets.codex {
-            tx.execute(
-                "INSERT OR REPLACE INTO settings (key, value) VALUES (?1, ?2)",
-                params!["common_config_codex", snippet],
-            )
-            .map_err(|e| AppError::Database(format!("Migrate settings failed: {e}")))?;
-        }
-        if let Some(snippet) = &config.common_config_snippets.gemini {
-            tx.execute(
-                "INSERT OR REPLACE INTO settings (key, value) VALUES (?1, ?2)",
-                params!["common_config_gemini", snippet],
-            )
-            .map_err(|e| AppError::Database(format!("Migrate settings failed: {e}")))?;
-        }
-
-        Ok(())
-    }
 }
diff --git a/src-tauri/src/database/tests.rs b/src-tauri/src/database/tests.rs
index 8e37b3d60..e76dd7d6b 100644
--- a/src-tauri/src/database/tests.rs
+++ b/src-tauri/src/database/tests.rs
@@ -513,8 +513,6 @@ fn schema_dry_run_does_not_write_to_disk() {
         mcp: Default::default(),
         prompts: Default::default(),
         skills: Default::default(),
-        common_config_snippets: Default::default(),
-        claude_common_config_snippet: None,
     };
 
     // Dry-run should succeed without any file I/O errors
@@ -563,8 +561,6 @@ fn dry_run_validates_schema_compatibility() {
         mcp: Default::default(),
         prompts: Default::default(),
         skills: Default::default(),
-        common_config_snippets: Default::default(),
-        claude_common_config_snippet: None,
     };
 
     // Dry-run should validate the full migration path
diff --git a/src-tauri/src/lib.rs b/src-tauri/src/lib.rs
index 5b023673e..7e550fa04 100644
--- a/src-tauri/src/lib.rs
+++ b/src-tauri/src/lib.rs
@@ -845,12 +845,10 @@ pub fn run() {
             commands::get_skills_migration_result,
             commands::get_app_config_path,
             commands::open_app_config_folder,
-            commands::get_claude_common_config_snippet,
-            commands::set_claude_common_config_snippet,
             commands::get_common_config_snippet,
             commands::set_common_config_snippet,
-            commands::extract_common_config_snippet,
             commands::read_live_provider_settings,
+            commands::patch_claude_live_settings,
             commands::get_settings,
             commands::save_settings,
             commands::get_rectifier_config,
diff --git a/src-tauri/src/provider.rs b/src-tauri/src/provider.rs
index cbeee21d0..0581e7461 100644
--- a/src-tauri/src/provider.rs
+++ b/src-tauri/src/provider.rs
@@ -235,6 +235,11 @@ pub struct ProviderMeta {
     /// - "openai_chat": OpenAI Chat Completions 格式，需要转换
     #[serde(rename = "apiFormat", skip_serializing_if = "Option::is_none")]
     pub api_format: Option<String>,
+    /// Claude 认证字段名（仅 Claude 供应商使用）
+    /// - "ANTHROPIC_AUTH_TOKEN" (默认): 大多数第三方/聚合供应商
+    /// - "ANTHROPIC_API_KEY": 少数供应商需要原生 API Key
+    #[serde(rename = "apiKeyField", skip_serializing_if = "Option::is_none")]
+    pub api_key_field: Option<String>,
 }
 
 impl ProviderManager {
diff --git a/src-tauri/src/services/config.rs b/src-tauri/src/services/config.rs
index d354cccb1..d2c8da0c5 100644
--- a/src-tauri/src/services/config.rs
+++ b/src-tauri/src/services/config.rs
@@ -1,9 +1,5 @@
-use super::provider::{sanitize_claude_settings_for_live, ProviderService};
-use crate::app_config::{AppType, MultiAppConfig};
 use crate::error::AppError;
-use crate::provider::Provider;
 use chrono::Utc;
-use serde_json::Value;
 use std::fs;
 use std::path::Path;
 
@@ -82,150 +78,4 @@ impl ConfigService {
 
         Ok(())
     }
-
-    /// 同步当前供应商到对应的 live 配置。
-    pub fn sync_current_providers_to_live(config: &mut MultiAppConfig) -> Result<(), AppError> {
-        Self::sync_current_provider_for_app(config, &AppType::Claude)?;
-        Self::sync_current_provider_for_app(config, &AppType::Codex)?;
-        Self::sync_current_provider_for_app(config, &AppType::Gemini)?;
-        Ok(())
-    }
-
-    fn sync_current_provider_for_app(
-        config: &mut MultiAppConfig,
-        app_type: &AppType,
-    ) -> Result<(), AppError> {
-        let (current_id, provider) = {
-            let manager = match config.get_manager(app_type) {
-                Some(manager) => manager,
-                None => return Ok(()),
-            };
-
-            if manager.current.is_empty() {
-                return Ok(());
-            }
-
-            let current_id = manager.current.clone();
-            let provider = match manager.providers.get(&current_id) {
-                Some(provider) => provider.clone(),
-                None => {
-                    log::warn!(
-                        "当前应用 {app_type:?} 的供应商 {current_id} 不存在，跳过 live 同步"
-                    );
-                    return Ok(());
-                }
-            };
-            (current_id, provider)
-        };
-
-        match app_type {
-            AppType::Codex => Self::sync_codex_live(config, &current_id, &provider)?,
-            AppType::Claude => Self::sync_claude_live(config, &current_id, &provider)?,
-            AppType::Gemini => Self::sync_gemini_live(config, &current_id, &provider)?,
-            AppType::OpenCode => {
-                // OpenCode uses additive mode, no live sync needed
-                // OpenCode providers are managed directly in the config file
-            }
-            AppType::OpenClaw => {
-                // OpenClaw uses additive mode, no live sync needed
-                // OpenClaw providers are managed directly in the config file
-            }
-        }
-
-        Ok(())
-    }
-
-    fn sync_codex_live(
-        config: &mut MultiAppConfig,
-        provider_id: &str,
-        provider: &Provider,
-    ) -> Result<(), AppError> {
-        let settings = provider.settings_config.as_object().ok_or_else(|| {
-            AppError::Config(format!("供应商 {provider_id} 的 Codex 配置必须是对象"))
-        })?;
-        let auth = settings.get("auth").ok_or_else(|| {
-            AppError::Config(format!("供应商 {provider_id} 的 Codex 配置缺少 auth 字段"))
-        })?;
-        if !auth.is_object() {
-            return Err(AppError::Config(format!(
-                "供应商 {provider_id} 的 Codex auth 配置必须是 JSON 对象"
-            )));
-        }
-        let cfg_text = settings.get("config").and_then(Value::as_str);
-
-        crate::codex_config::write_codex_live_atomic(auth, cfg_text)?;
-        // 注意：MCP 同步在 v3.7.0 中已通过 McpService 进行，不再在此调用
-        // sync_enabled_to_codex 使用旧的 config.mcp.codex 结构，在新架构中为空
-        // MCP 的启用/禁用应通过 McpService::toggle_app 进行
-
-        let cfg_text_after = crate::codex_config::read_and_validate_codex_config_text()?;
-        if let Some(manager) = config.get_manager_mut(&AppType::Codex) {
-            if let Some(target) = manager.providers.get_mut(provider_id) {
-                if let Some(obj) = target.settings_config.as_object_mut() {
-                    obj.insert(
-                        "config".to_string(),
-                        serde_json::Value::String(cfg_text_after),
-                    );
-                }
-            }
-        }
-
-        Ok(())
-    }
-
-    fn sync_claude_live(
-        config: &mut MultiAppConfig,
-        provider_id: &str,
-        provider: &Provider,
-    ) -> Result<(), AppError> {
-        use crate::config::{read_json_file, write_json_file};
-
-        let settings_path = crate::config::get_claude_settings_path();
-        if let Some(parent) = settings_path.parent() {
-            fs::create_dir_all(parent).map_err(|e| AppError::io(parent, e))?;
-        }
-
-        let settings = sanitize_claude_settings_for_live(&provider.settings_config);
-        write_json_file(&settings_path, &settings)?;
-
-        let live_after = read_json_file::<serde_json::Value>(&settings_path)?;
-        if let Some(manager) = config.get_manager_mut(&AppType::Claude) {
-            if let Some(target) = manager.providers.get_mut(provider_id) {
-                target.settings_config = live_after;
-            }
-        }
-
-        Ok(())
-    }
-
-    fn sync_gemini_live(
-        config: &mut MultiAppConfig,
-        provider_id: &str,
-        provider: &Provider,
-    ) -> Result<(), AppError> {
-        use crate::gemini_config::{env_to_json, read_gemini_env};
-
-        ProviderService::write_gemini_live(provider)?;
-
-        // 读回实际写入的内容并更新到配置中（包含 settings.json）
-        let live_after_env = read_gemini_env()?;
-        let settings_path = crate::gemini_config::get_gemini_settings_path();
-        let live_after_config = if settings_path.exists() {
-            crate::config::read_json_file(&settings_path)?
-        } else {
-            serde_json::json!({})
-        };
-        let mut live_after = env_to_json(&live_after_env);
-        if let Some(obj) = live_after.as_object_mut() {
-            obj.insert("config".to_string(), live_after_config);
-        }
-
-        if let Some(manager) = config.get_manager_mut(&AppType::Gemini) {
-            if let Some(target) = manager.providers.get_mut(provider_id) {
-                target.settings_config = live_after;
-            }
-        }
-
-        Ok(())
-    }
 }
diff --git a/src-tauri/src/services/provider/live.rs b/src-tauri/src/services/provider/live.rs
index da4e15fa6..882191ad7 100644
--- a/src-tauri/src/services/provider/live.rs
+++ b/src-tauri/src/services/provider/live.rs
@@ -237,6 +237,439 @@ pub(crate) fn write_live_snapshot(app_type: &AppType, provider: &Provider) -> Re
     Ok(())
 }
 
+// ============================================================================
+// Key fields definitions for partial merge
+// ============================================================================
+
+/// Claude env-level key fields that belong to the provider.
+/// When adding a new field here, also update backfill_claude_key_fields().
+const CLAUDE_KEY_ENV_FIELDS: &[&str] = &[
+    // --- API auth & endpoint ---
+    "ANTHROPIC_BASE_URL",
+    "ANTHROPIC_AUTH_TOKEN",
+    "ANTHROPIC_API_KEY",
+    // --- Model selection ---
+    "ANTHROPIC_MODEL",
+    "ANTHROPIC_REASONING_MODEL",
+    "ANTHROPIC_SMALL_FAST_MODEL",
+    "ANTHROPIC_DEFAULT_HAIKU_MODEL",
+    "ANTHROPIC_DEFAULT_SONNET_MODEL",
+    "ANTHROPIC_DEFAULT_OPUS_MODEL",
+    "CLAUDE_CODE_SUBAGENT_MODEL",
+    // --- AWS Bedrock ---
+    "CLAUDE_CODE_USE_BEDROCK",
+    "AWS_ACCESS_KEY_ID",
+    "AWS_SECRET_ACCESS_KEY",
+    "AWS_SESSION_TOKEN",
+    "AWS_REGION",
+    "AWS_PROFILE",
+    "ANTHROPIC_SMALL_FAST_MODEL_AWS_REGION",
+    // --- Google Vertex AI ---
+    "CLAUDE_CODE_USE_VERTEX",
+    "ANTHROPIC_VERTEX_PROJECT_ID",
+    "CLOUD_ML_REGION",
+    // --- Microsoft Foundry ---
+    "CLAUDE_CODE_USE_FOUNDRY",
+    // --- Provider behavior ---
+    "CLAUDE_CODE_MAX_OUTPUT_TOKENS",
+    "CLAUDE_CODE_DISABLE_NONESSENTIAL_TRAFFIC",
+    "API_TIMEOUT_MS",
+    "DISABLE_PROMPT_CACHING",
+];
+
+/// Claude top-level key fields (legacy + modern format).
+/// When adding a new field here, also update backfill_claude_key_fields().
+const CLAUDE_KEY_TOP_LEVEL: &[&str] = &[
+    "apiBaseUrl",     // legacy
+    "primaryModel",   // legacy
+    "smallFastModel", // legacy
+    "model",          // modern
+    "apiKey",         // Bedrock API Key auth
+];
+
+/// Codex TOML key fields.
+/// When adding a new field here, also update backfill_codex_key_fields().
+const CODEX_KEY_TOP_LEVEL: &[&str] = &[
+    "model_provider",
+    "model",
+    "model_reasoning_effort",
+    "review_model",
+    "plan_mode_reasoning_effort",
+];
+
+/// Gemini env-level key fields.
+/// When adding a new field here, also update backfill_gemini_key_fields().
+const GEMINI_KEY_ENV_FIELDS: &[&str] = &[
+    "GOOGLE_GEMINI_BASE_URL",
+    "GEMINI_API_KEY",
+    "GEMINI_MODEL",
+    "GOOGLE_API_KEY",
+];
+
+// ============================================================================
+// Partial merge: write only key fields to live config
+// ============================================================================
+
+/// Write only provider-specific key fields to live configuration,
+/// preserving all other user settings in the live file.
+///
+/// Used for switch-mode apps (Claude, Codex, Gemini) during:
+/// - `switch_normal()` — switching providers
+/// - `sync_current_to_live()` — startup sync
+/// - `add()` / `update()` when the provider is current
+pub(crate) fn write_live_partial(app_type: &AppType, provider: &Provider) -> Result<(), AppError> {
+    match app_type {
+        AppType::Claude => write_claude_live_partial(provider),
+        AppType::Codex => write_codex_live_partial(provider),
+        AppType::Gemini => write_gemini_live_partial(provider),
+        // Additive mode apps still use full snapshot
+        AppType::OpenCode | AppType::OpenClaw => write_live_snapshot(app_type, provider),
+    }
+}
+
+/// Apply a JSON merge patch (RFC 7396) directly to Claude live settings.json.
+/// Used for user-level preferences (attribution, thinking, etc.) that are
+/// independent of the active provider.
+pub fn patch_claude_live(patch: Value) -> Result<(), AppError> {
+    let path = get_claude_settings_path();
+    let mut live = if path.exists() {
+        read_json_file(&path).unwrap_or_else(|_| json!({}))
+    } else {
+        json!({})
+    };
+    json_merge_patch(&mut live, &patch);
+    let settings = sanitize_claude_settings_for_live(&live);
+    write_json_file(&path, &settings)?;
+    Ok(())
+}
+
+/// RFC 7396 JSON Merge Patch: null deletes, objects merge recursively, rest overwrites.
+fn json_merge_patch(target: &mut Value, patch: &Value) {
+    if let Some(patch_obj) = patch.as_object() {
+        if !target.is_object() {
+            *target = json!({});
+        }
+        let target_obj = target.as_object_mut().unwrap();
+        for (key, value) in patch_obj {
+            if value.is_null() {
+                target_obj.remove(key);
+            } else if value.is_object() {
+                let entry = target_obj.entry(key.clone()).or_insert(json!({}));
+                json_merge_patch(entry, value);
+                // Clean up empty container objects
+                if entry.as_object().map_or(false, |o| o.is_empty()) {
+                    target_obj.remove(key);
+                }
+            } else {
+                target_obj.insert(key.clone(), value.clone());
+            }
+        }
+    }
+}
+
+/// Claude: merge only key env and top-level fields into live settings.json
+fn write_claude_live_partial(provider: &Provider) -> Result<(), AppError> {
+    let path = get_claude_settings_path();
+
+    // 1. Read existing live config (start from empty if file doesn't exist)
+    let mut live = if path.exists() {
+        read_json_file(&path).unwrap_or_else(|_| json!({}))
+    } else {
+        json!({})
+    };
+
+    // 2. Ensure live.env exists as an object
+    if !live.get("env").is_some_and(|v| v.is_object()) {
+        live.as_object_mut()
+            .unwrap()
+            .insert("env".into(), json!({}));
+    }
+
+    // 3. Clear key env fields from live, then write from provider
+    let live_env = live.get_mut("env").unwrap().as_object_mut().unwrap();
+    for key in CLAUDE_KEY_ENV_FIELDS {
+        live_env.remove(*key);
+    }
+
+    if let Some(provider_env) = provider
+        .settings_config
+        .get("env")
+        .and_then(|v| v.as_object())
+    {
+        for key in CLAUDE_KEY_ENV_FIELDS {
+            if let Some(value) = provider_env.get(*key) {
+                live_env.insert(key.to_string(), value.clone());
+            }
+        }
+    }
+
+    // 4. Handle top-level legacy key fields
+    let live_obj = live.as_object_mut().unwrap();
+    for key in CLAUDE_KEY_TOP_LEVEL {
+        live_obj.remove(*key);
+    }
+    if let Some(provider_obj) = provider.settings_config.as_object() {
+        for key in CLAUDE_KEY_TOP_LEVEL {
+            if let Some(value) = provider_obj.get(*key) {
+                live_obj.insert(key.to_string(), value.clone());
+            }
+        }
+    }
+
+    // 5. Sanitize and write
+    let settings = sanitize_claude_settings_for_live(&live);
+    write_json_file(&path, &settings)?;
+    Ok(())
+}
+
+/// Codex: replace auth.json entirely, partially merge config.toml key fields
+fn write_codex_live_partial(provider: &Provider) -> Result<(), AppError> {
+    let obj = provider
+        .settings_config
+        .as_object()
+        .ok_or_else(|| AppError::Config("Codex 供应商配置必须是 JSON 对象".to_string()))?;
+
+    // auth.json is entirely provider-specific, replace it wholesale
+    let auth = obj
+        .get("auth")
+        .ok_or_else(|| AppError::Config("Codex 供应商配置缺少 'auth' 字段".to_string()))?;
+
+    let provider_config_str = obj.get("config").and_then(|v| v.as_str()).unwrap_or("");
+
+    // Read existing config.toml (or start from empty)
+    let config_path = get_codex_config_path();
+    let existing_toml = if config_path.exists() {
+        std::fs::read_to_string(&config_path).unwrap_or_default()
+    } else {
+        String::new()
+    };
+
+    // Parse both existing and provider TOML
+    let mut live_doc = existing_toml
+        .parse::<toml_edit::DocumentMut>()
+        .unwrap_or_else(|_| toml_edit::DocumentMut::new());
+
+    // Remove key fields from live doc
+    let live_root = live_doc.as_table_mut();
+    for key in CODEX_KEY_TOP_LEVEL {
+        live_root.remove(key);
+    }
+    live_root.remove("model_providers");
+
+    // Parse provider TOML and extract key fields
+    if !provider_config_str.is_empty() {
+        if let Ok(provider_doc) = provider_config_str.parse::<toml_edit::DocumentMut>() {
+            let provider_root = provider_doc.as_table();
+
+            // Copy key top-level fields from provider
+            for key in CODEX_KEY_TOP_LEVEL {
+                if let Some(item) = provider_root.get(key) {
+                    live_root.insert(key, item.clone());
+                }
+            }
+
+            // Copy model_providers table from provider
+            if let Some(mp) = provider_root.get("model_providers") {
+                live_root.insert("model_providers", mp.clone());
+            }
+        }
+    }
+
+    // Write using atomic write
+    crate::codex_config::write_codex_live_atomic(auth, Some(&live_doc.to_string()))?;
+    Ok(())
+}
+
+/// Gemini: merge only key env fields, preserve settings.json (MCP etc.)
+fn write_gemini_live_partial(provider: &Provider) -> Result<(), AppError> {
+    use crate::gemini_config::{get_gemini_env_path, read_gemini_env, write_gemini_env_atomic};
+
+    let auth_type = detect_gemini_auth_type(provider);
+
+    // 1. Read existing env from live .env file
+    let mut env_map = if get_gemini_env_path().exists() {
+        read_gemini_env().unwrap_or_default()
+    } else {
+        HashMap::new()
+    };
+
+    // 2. Remove key fields from existing env
+    for key in GEMINI_KEY_ENV_FIELDS {
+        env_map.remove(*key);
+    }
+
+    // 3. Extract key fields from provider and merge
+    if let Some(provider_env) = provider
+        .settings_config
+        .get("env")
+        .and_then(|v| v.as_object())
+    {
+        for key in GEMINI_KEY_ENV_FIELDS {
+            if let Some(value) = provider_env.get(*key).and_then(|v| v.as_str()) {
+                if !value.is_empty() {
+                    env_map.insert(key.to_string(), value.to_string());
+                }
+            }
+        }
+    }
+
+    // 4. Handle auth type specific behavior
+    match auth_type {
+        GeminiAuthType::GoogleOfficial => {
+            // Google official uses OAuth, clear all env
+            env_map.clear();
+            write_gemini_env_atomic(&env_map)?;
+        }
+        GeminiAuthType::Packycode | GeminiAuthType::Generic => {
+            // Validate and write env
+            crate::gemini_config::validate_gemini_settings_strict(&provider.settings_config)?;
+            write_gemini_env_atomic(&env_map)?;
+        }
+    }
+
+    // 5. Handle settings.json (same as write_gemini_live — preserve existing MCP etc.)
+    use crate::gemini_config::get_gemini_settings_path;
+    let settings_path = get_gemini_settings_path();
+
+    if let Some(config_value) = provider.settings_config.get("config") {
+        if config_value.is_object() {
+            let mut merged = if settings_path.exists() {
+                read_json_file::<Value>(&settings_path).unwrap_or_else(|_| json!({}))
+            } else {
+                json!({})
+            };
+            if let (Some(merged_obj), Some(config_obj)) =
+                (merged.as_object_mut(), config_value.as_object())
+            {
+                for (k, v) in config_obj {
+                    merged_obj.insert(k.clone(), v.clone());
+                }
+            }
+            write_json_file(&settings_path, &merged)?;
+        } else if !config_value.is_null() {
+            return Err(AppError::localized(
+                "gemini.validation.invalid_config",
+                "Gemini 配置格式错误: config 必须是对象或 null",
+                "Gemini config invalid: config must be an object or null",
+            ));
+        }
+    }
+
+    // 6. Set security flag based on auth type
+    match auth_type {
+        GeminiAuthType::GoogleOfficial => ensure_google_oauth_security_flag(provider)?,
+        GeminiAuthType::Packycode | GeminiAuthType::Generic => {
+            crate::gemini_config::write_packycode_settings()?;
+        }
+    }
+
+    Ok(())
+}
+
+// ============================================================================
+// Backfill: extract only key fields from live config
+// ============================================================================
+
+/// Extract only provider-specific key fields from a live config value.
+///
+/// Used during backfill to ensure the provider's `settings_config` converges
+/// to containing only key fields over time.
+pub(crate) fn backfill_key_fields(app_type: &AppType, live_config: &Value) -> Value {
+    match app_type {
+        AppType::Claude => backfill_claude_key_fields(live_config),
+        AppType::Codex => backfill_codex_key_fields(live_config),
+        AppType::Gemini => backfill_gemini_key_fields(live_config),
+        // Additive mode: return full config (no backfill needed)
+        _ => live_config.clone(),
+    }
+}
+
+fn backfill_claude_key_fields(live: &Value) -> Value {
+    let mut result = json!({});
+    let result_obj = result.as_object_mut().unwrap();
+
+    // Extract key env fields
+    if let Some(live_env) = live.get("env").and_then(|v| v.as_object()) {
+        let mut env_obj = serde_json::Map::new();
+        for key in CLAUDE_KEY_ENV_FIELDS {
+            if let Some(value) = live_env.get(*key) {
+                env_obj.insert(key.to_string(), value.clone());
+            }
+        }
+        if !env_obj.is_empty() {
+            result_obj.insert("env".to_string(), Value::Object(env_obj));
+        }
+    }
+
+    // Extract key top-level fields
+    if let Some(live_obj) = live.as_object() {
+        for key in CLAUDE_KEY_TOP_LEVEL {
+            if let Some(value) = live_obj.get(*key) {
+                result_obj.insert(key.to_string(), value.clone());
+            }
+        }
+    }
+
+    result
+}
+
+fn backfill_codex_key_fields(live: &Value) -> Value {
+    let mut result = json!({});
+    let result_obj = result.as_object_mut().unwrap();
+
+    // auth is entirely provider-specific — keep it as-is
+    if let Some(auth) = live.get("auth") {
+        result_obj.insert("auth".to_string(), auth.clone());
+    }
+
+    // Extract key TOML fields from config string
+    if let Some(config_str) = live.get("config").and_then(|v| v.as_str()) {
+        if let Ok(doc) = config_str.parse::<toml_edit::DocumentMut>() {
+            let mut new_doc = toml_edit::DocumentMut::new();
+            let new_root = new_doc.as_table_mut();
+
+            // Copy key top-level fields
+            for key in CODEX_KEY_TOP_LEVEL {
+                if let Some(item) = doc.as_table().get(key) {
+                    new_root.insert(key, item.clone());
+                }
+            }
+
+            // Copy model_providers table
+            if let Some(mp) = doc.as_table().get("model_providers") {
+                new_root.insert("model_providers", mp.clone());
+            }
+
+            let toml_str = new_doc.to_string();
+            if !toml_str.trim().is_empty() {
+                result_obj.insert("config".to_string(), Value::String(toml_str));
+            }
+        }
+    }
+
+    result
+}
+
+fn backfill_gemini_key_fields(live: &Value) -> Value {
+    let mut result = json!({});
+    let result_obj = result.as_object_mut().unwrap();
+
+    // Extract key env fields
+    if let Some(live_env) = live.get("env").and_then(|v| v.as_object()) {
+        let mut env_obj = serde_json::Map::new();
+        for key in GEMINI_KEY_ENV_FIELDS {
+            if let Some(value) = live_env.get(*key) {
+                env_obj.insert(key.to_string(), value.clone());
+            }
+        }
+        if !env_obj.is_empty() {
+            result_obj.insert("env".to_string(), Value::Object(env_obj));
+        }
+    }
+
+    result
+}
+
 /// Sync all providers to live configuration (for additive mode apps)
 ///
 /// Writes all providers from the database to the live configuration file.
@@ -286,7 +719,7 @@ pub fn sync_current_to_live(state: &AppState) -> Result<(), AppError> {
 
             let providers = state.db.get_all_providers(app_type.as_str())?;
             if let Some(provider) = providers.get(&current_id) {
-                write_live_snapshot(&app_type, provider)?;
+                write_live_partial(&app_type, provider)?;
             }
             // Note: get_effective_current_provider already validates existence,
             // so providers.get() should always succeed here
diff --git a/src-tauri/src/services/provider/mod.rs b/src-tauri/src/services/provider/mod.rs
index 7a35754a4..98c8c7a38 100644
--- a/src-tauri/src/services/provider/mod.rs
+++ b/src-tauri/src/services/provider/mod.rs
@@ -27,11 +27,12 @@ pub use live::{
 
 // Internal re-exports (pub(crate))
 pub(crate) use live::sanitize_claude_settings_for_live;
-pub(crate) use live::write_live_snapshot;
+pub(crate) use live::write_live_partial;
 
 // Internal re-exports
 use live::{
-    remove_openclaw_provider_from_live, remove_opencode_provider_from_live, write_gemini_live,
+    backfill_key_fields, remove_openclaw_provider_from_live, remove_opencode_provider_from_live,
+    write_live_snapshot,
 };
 use usage::validate_usage_script;
 
@@ -84,47 +85,6 @@ mod tests {
         assert_eq!(api_key, "token");
         assert_eq!(base_url, "https://claude.example");
     }
-
-    #[test]
-    fn extract_codex_common_config_preserves_mcp_servers_base_url() {
-        let config_toml = r#"model_provider = "azure"
-model = "gpt-4"
-disable_response_storage = true
-
-[model_providers.azure]
-name = "Azure OpenAI"
-base_url = "https://azure.example/v1"
-wire_api = "responses"
-
-[mcp_servers.my_server]
-base_url = "http://localhost:8080"
-"#;
-
-        let settings = json!({ "config": config_toml });
-        let extracted = ProviderService::extract_codex_common_config(&settings)
-            .expect("extract_codex_common_config should succeed");
-
-        assert!(
-            !extracted
-                .lines()
-                .any(|line| line.trim_start().starts_with("model_provider")),
-            "should remove top-level model_provider"
-        );
-        assert!(
-            !extracted
-                .lines()
-                .any(|line| line.trim_start().starts_with("model =")),
-            "should remove top-level model"
-        );
-        assert!(
-            !extracted.contains("[model_providers"),
-            "should remove entire model_providers table"
-        );
-        assert!(
-            extracted.contains("http://localhost:8080"),
-            "should keep mcp_servers.* base_url"
-        );
-    }
 }
 
 impl ProviderService {
@@ -191,7 +151,7 @@ impl ProviderService {
             state
                 .db
                 .set_current_provider(app_type.as_str(), &provider.id)?;
-            write_live_snapshot(&app_type, &provider)?;
+            write_live_partial(&app_type, &provider)?;
         }
 
         Ok(true)
@@ -272,7 +232,7 @@ impl ProviderService {
                 )
                 .map_err(|e| AppError::Message(format!("更新 Live 备份失败: {e}")))?;
             } else {
-                write_live_snapshot(&app_type, &provider)?;
+                write_live_partial(&app_type, &provider)?;
                 // Sync MCP
                 McpService::sync_all_enabled(state)?;
             }
@@ -578,7 +538,9 @@ impl ProviderService {
                     // Only backfill when switching to a different provider
                     if let Ok(live_config) = read_live_settings(app_type.clone()) {
                         if let Some(mut current_provider) = providers.get(&current_id).cloned() {
-                            current_provider.settings_config = live_config;
+                            // Only extract key fields from live config for backfill
+                            current_provider.settings_config =
+                                backfill_key_fields(&app_type, &live_config);
                             if let Err(e) =
                                 state.db.save_provider(app_type.as_str(), &current_provider)
                             {
@@ -602,11 +564,8 @@ impl ProviderService {
             state.db.set_current_provider(app_type.as_str(), id)?;
         }
 
-        // Sync to live (write_gemini_live handles security flag internally for Gemini)
-        write_live_snapshot(&app_type, provider)?;
-
-        // Sync MCP
-        McpService::sync_all_enabled(state)?;
+        // Sync to live (partial merge: only key fields, preserving user settings)
+        write_live_partial(&app_type, provider)?;
 
         Ok(result)
     }
@@ -616,222 +575,6 @@ impl ProviderService {
         sync_current_to_live(state)
     }
 
-    /// Extract common config snippet from current provider
-    ///
-    /// Extracts the current provider's configuration and removes provider-specific fields
-    /// (API keys, model settings, endpoints) to create a reusable common config snippet.
-    pub fn extract_common_config_snippet(
-        state: &AppState,
-        app_type: AppType,
-    ) -> Result<String, AppError> {
-        // Get current provider
-        let current_id = Self::current(state, app_type.clone())?;
-        if current_id.is_empty() {
-            return Err(AppError::Message("No current provider".to_string()));
-        }
-
-        let providers = state.db.get_all_providers(app_type.as_str())?;
-        let provider = providers
-            .get(&current_id)
-            .ok_or_else(|| AppError::Message(format!("Provider {current_id} not found")))?;
-
-        match app_type {
-            AppType::Claude => Self::extract_claude_common_config(&provider.settings_config),
-            AppType::Codex => Self::extract_codex_common_config(&provider.settings_config),
-            AppType::Gemini => Self::extract_gemini_common_config(&provider.settings_config),
-            AppType::OpenCode => Self::extract_opencode_common_config(&provider.settings_config),
-            AppType::OpenClaw => Self::extract_openclaw_common_config(&provider.settings_config),
-        }
-    }
-
-    /// Extract common config snippet from a config value (e.g. editor content).
-    pub fn extract_common_config_snippet_from_settings(
-        app_type: AppType,
-        settings_config: &Value,
-    ) -> Result<String, AppError> {
-        match app_type {
-            AppType::Claude => Self::extract_claude_common_config(settings_config),
-            AppType::Codex => Self::extract_codex_common_config(settings_config),
-            AppType::Gemini => Self::extract_gemini_common_config(settings_config),
-            AppType::OpenCode => Self::extract_opencode_common_config(settings_config),
-            AppType::OpenClaw => Self::extract_openclaw_common_config(settings_config),
-        }
-    }
-
-    /// Extract common config for Claude (JSON format)
-    fn extract_claude_common_config(settings: &Value) -> Result<String, AppError> {
-        let mut config = settings.clone();
-
-        // Fields to exclude from common config
-        const ENV_EXCLUDES: &[&str] = &[
-            // Auth
-            "ANTHROPIC_API_KEY",
-            "ANTHROPIC_AUTH_TOKEN",
-            // Models (5 fields)
-            "ANTHROPIC_MODEL",
-            "ANTHROPIC_REASONING_MODEL",
-            "ANTHROPIC_DEFAULT_HAIKU_MODEL",
-            "ANTHROPIC_DEFAULT_OPUS_MODEL",
-            "ANTHROPIC_DEFAULT_SONNET_MODEL",
-            // Endpoint
-            "ANTHROPIC_BASE_URL",
-        ];
-
-        const TOP_LEVEL_EXCLUDES: &[&str] = &[
-            "apiBaseUrl",
-            // Legacy model fields
-            "primaryModel",
-            "smallFastModel",
-        ];
-
-        // Remove env fields
-        if let Some(env) = config.get_mut("env").and_then(|v| v.as_object_mut()) {
-            for key in ENV_EXCLUDES {
-                env.remove(*key);
-            }
-            // If env is empty after removal, remove the env object itself
-            if env.is_empty() {
-                config.as_object_mut().map(|obj| obj.remove("env"));
-            }
-        }
-
-        // Remove top-level fields
-        if let Some(obj) = config.as_object_mut() {
-            for key in TOP_LEVEL_EXCLUDES {
-                obj.remove(*key);
-            }
-        }
-
-        // Check if result is empty
-        if config.as_object().is_none_or(|obj| obj.is_empty()) {
-            return Ok("{}".to_string());
-        }
-
-        serde_json::to_string_pretty(&config)
-            .map_err(|e| AppError::Message(format!("Serialization failed: {e}")))
-    }
-
-    /// Extract common config for Codex (TOML format)
-    fn extract_codex_common_config(settings: &Value) -> Result<String, AppError> {
-        // Codex config is stored as { "auth": {...}, "config": "toml string" }
-        let config_toml = settings
-            .get("config")
-            .and_then(|v| v.as_str())
-            .unwrap_or("");
-
-        if config_toml.is_empty() {
-            return Ok(String::new());
-        }
-
-        let mut doc = config_toml
-            .parse::<toml_edit::DocumentMut>()
-            .map_err(|e| AppError::Message(format!("TOML parse error: {e}")))?;
-
-        // Remove provider-specific fields.
-        let root = doc.as_table_mut();
-        root.remove("model");
-        root.remove("model_provider");
-        // Legacy/alt formats might use a top-level base_url.
-        root.remove("base_url");
-
-        // Remove entire model_providers table (provider-specific configuration)
-        root.remove("model_providers");
-
-        // Clean up multiple empty lines (keep at most one blank line).
-        let mut cleaned = String::new();
-        let mut blank_run = 0usize;
-        for line in doc.to_string().lines() {
-            if line.trim().is_empty() {
-                blank_run += 1;
-                if blank_run <= 1 {
-                    cleaned.push('\n');
-                }
-                continue;
-            }
-            blank_run = 0;
-            cleaned.push_str(line);
-            cleaned.push('\n');
-        }
-
-        Ok(cleaned.trim().to_string())
-    }
-
-    /// Extract common config for Gemini (JSON format)
-    ///
-    /// Extracts `.env` values while excluding provider-specific credentials:
-    /// - GOOGLE_GEMINI_BASE_URL
-    /// - GEMINI_API_KEY
-    fn extract_gemini_common_config(settings: &Value) -> Result<String, AppError> {
-        let env = settings.get("env").and_then(|v| v.as_object());
-
-        let mut snippet = serde_json::Map::new();
-        if let Some(env) = env {
-            for (key, value) in env {
-                if key == "GOOGLE_GEMINI_BASE_URL" || key == "GEMINI_API_KEY" {
-                    continue;
-                }
-                let Value::String(v) = value else {
-                    continue;
-                };
-                let trimmed = v.trim();
-                if !trimmed.is_empty() {
-                    snippet.insert(key.to_string(), Value::String(trimmed.to_string()));
-                }
-            }
-        }
-
-        if snippet.is_empty() {
-            return Ok("{}".to_string());
-        }
-
-        serde_json::to_string_pretty(&Value::Object(snippet))
-            .map_err(|e| AppError::Message(format!("Serialization failed: {e}")))
-    }
-
-    /// Extract common config for OpenCode (JSON format)
-    fn extract_opencode_common_config(settings: &Value) -> Result<String, AppError> {
-        // OpenCode uses a different config structure with npm, options, models
-        // For common config, we exclude provider-specific fields like apiKey
-        let mut config = settings.clone();
-
-        // Remove provider-specific fields
-        if let Some(obj) = config.as_object_mut() {
-            if let Some(options) = obj.get_mut("options").and_then(|v| v.as_object_mut()) {
-                options.remove("apiKey");
-                options.remove("baseURL");
-            }
-            // Keep npm and models as they might be common
-        }
-
-        if config.is_null() || (config.is_object() && config.as_object().unwrap().is_empty()) {
-            return Ok("{}".to_string());
-        }
-
-        serde_json::to_string_pretty(&config)
-            .map_err(|e| AppError::Message(format!("Serialization failed: {e}")))
-    }
-
-    /// Extract common config for OpenClaw (JSON format)
-    fn extract_openclaw_common_config(settings: &Value) -> Result<String, AppError> {
-        // OpenClaw uses a different config structure with baseUrl, apiKey, api, models
-        // For common config, we exclude provider-specific fields like apiKey
-        let mut config = settings.clone();
-
-        // Remove provider-specific fields
-        if let Some(obj) = config.as_object_mut() {
-            obj.remove("apiKey");
-            obj.remove("baseUrl");
-            // Keep api and models as they might be common
-        }
-
-        if config.is_null() || (config.is_object() && config.as_object().unwrap().is_empty()) {
-            return Ok("{}".to_string());
-        }
-
-        serde_json::to_string_pretty(&config)
-            .map_err(|e| AppError::Message(format!("Serialization failed: {e}")))
-    }
-
     /// Import default configuration from live files (re-export)
     ///
     /// Returns `Ok(true)` if imported, `Ok(false)` if skipped.
@@ -844,6 +587,11 @@ impl ProviderService {
         read_live_settings(app_type)
     }
 
+    /// Patch Claude live settings directly (user-level preferences)
+    pub fn patch_claude_live(patch: Value) -> Result<(), AppError> {
+        live::patch_claude_live(patch)
+    }
+
     /// Get custom endpoints list (re-export)
     pub fn get_custom_endpoints(
         state: &AppState,
@@ -939,10 +687,6 @@ impl ProviderService {
         .await
     }
 
-    pub(crate) fn write_gemini_live(provider: &Provider) -> Result<(), AppError> {
-        write_gemini_live(provider)
-    }
-
     fn validate_provider_settings(app_type: &AppType, provider: &Provider) -> Result<(), AppError> {
         match app_type {
             AppType::Claude => {
diff --git a/src-tauri/src/services/proxy.rs b/src-tauri/src/services/proxy.rs
index 5325f4af1..3dc0412dd 100644
--- a/src-tauri/src/services/proxy.rs
+++ b/src-tauri/src/services/proxy.rs
@@ -8,7 +8,7 @@ use crate::database::Database;
 use crate::provider::Provider;
 use crate::proxy::server::ProxyServer;
 use crate::proxy::types::*;
-use crate::services::provider::write_live_snapshot;
+use crate::services::provider::write_live_partial;
 use serde_json::{json, Value};
 use std::str::FromStr;
 use std::sync::Arc;
@@ -1266,7 +1266,7 @@ impl ProxyService {
             return Ok(false);
         };
 
-        write_live_snapshot(app_type, provider)
+        write_live_partial(app_type, provider)
             .map_err(|e| format!("写入 {app_type:?} Live 配置失败: {e}"))?;
 
         Ok(true)
diff --git a/src-tauri/tests/import_export_sync.rs b/src-tauri/tests/import_export_sync.rs
index 24a1667fb..c9738c7f8 100644
--- a/src-tauri/tests/import_export_sync.rs
+++ b/src-tauri/tests/import_export_sync.rs
@@ -2,10 +2,7 @@ use serde_json::json;
 use std::fs;
 use std::path::PathBuf;
 
-use cc_switch_lib::{
-    get_claude_settings_path, read_json_file, AppError, AppType, ConfigService, MultiAppConfig,
-    Provider, ProviderMeta,
-};
+use cc_switch_lib::{AppError, AppType, ConfigService, MultiAppConfig, Provider};
 
 #[path = "support.rs"]
 mod support;
@@ -13,132 +10,6 @@ use support::{
     create_test_state, create_test_state_with_config, ensure_test_home, reset_test_fs, test_mutex,
 };
 
-#[test]
-fn sync_claude_provider_writes_live_settings() {
-    let _guard = test_mutex().lock().expect("acquire test mutex");
-    reset_test_fs();
-    let home = ensure_test_home();
-
-    let mut config = MultiAppConfig::default();
-    let provider_config = json!({
-        "env": {
-            "ANTHROPIC_AUTH_TOKEN": "test-key",
-            "ANTHROPIC_BASE_URL": "https://api.test"
-        },
-        "ui": {
-            "displayName": "Test Provider"
-        }
-    });
-
-    let provider = Provider::with_id(
-        "prov-1".to_string(),
-        "Test Claude".to_string(),
-        provider_config.clone(),
-        None,
-    );
-
-    let manager = config
-        .get_manager_mut(&AppType::Claude)
-        .expect("claude manager");
-    manager.providers.insert("prov-1".to_string(), provider);
-    manager.current = "prov-1".to_string();
-
-    ConfigService::sync_current_providers_to_live(&mut config).expect("sync live settings");
-
-    let settings_path = get_claude_settings_path();
-    assert!(
-        settings_path.exists(),
-        "live settings should be written to {}",
-        settings_path.display()
-    );
-
-    let live_value: serde_json::Value = read_json_file(&settings_path).expect("read live file");
-    assert_eq!(live_value, provider_config);
-
-    // 确认 SSOT 中的供应商也同步了最新内容
-    let updated = config
-        .get_manager(&AppType::Claude)
-        .and_then(|m| m.providers.get("prov-1"))
-        .expect("provider in config");
-    assert_eq!(updated.settings_config, provider_config);
-
-    // 额外确认写入位置位于测试 HOME 下
-    assert!(
-        settings_path.starts_with(home),
-        "settings path {settings_path:?} should reside under test HOME {home:?}"
-    );
-}
-
-#[test]
-fn sync_codex_provider_writes_auth_and_config() {
-    let _guard = test_mutex().lock().expect("acquire test mutex");
-    reset_test_fs();
-
-    let mut config = MultiAppConfig::default();
-
-    // 注意：v3.7.0 后 MCP 同步由 McpService 独立处理，不再通过 provider 切换触发
-    // 此测试仅验证 auth.json 和 config.toml 基础配置的写入
-
-    let provider_config = json!({
-        "auth": {
-            "OPENAI_API_KEY": "codex-key"
-        },
-        "config": r#"base_url = "https://codex.test""#
-    });
-
-    let provider = Provider::with_id(
-        "codex-1".to_string(),
-        "Codex Test".to_string(),
-        provider_config.clone(),
-        None,
-    );
-
-    let manager = config
-        .get_manager_mut(&AppType::Codex)
-        .expect("codex manager");
-    manager.providers.insert("codex-1".to_string(), provider);
-    manager.current = "codex-1".to_string();
-
-    ConfigService::sync_current_providers_to_live(&mut config).expect("sync codex live");
-
-    let auth_path = cc_switch_lib::get_codex_auth_path();
-    let config_path = cc_switch_lib::get_codex_config_path();
-
-    assert!(
-        auth_path.exists(),
-        "auth.json should exist at {}",
-        auth_path.display()
-    );
-    assert!(
-        config_path.exists(),
-        "config.toml should exist at {}",
-        config_path.display()
-    );
-
-    let auth_value: serde_json::Value = read_json_file(&auth_path).expect("read auth");
-    assert_eq!(
-        auth_value,
-        provider_config.get("auth").cloned().expect("auth object")
-    );
-
-    let toml_text = fs::read_to_string(&config_path).expect("read config.toml");
-    // 验证基础配置正确写入
-    assert!(
-        toml_text.contains("base_url"),
-        "config.toml should contain base_url from provider config"
-    );
-
-    // 当前供应商应同步最新 config 文本
-    let manager = config.get_manager(&AppType::Codex).expect("codex manager");
-    let synced = manager.providers.get("codex-1").expect("codex provider");
-    let synced_cfg = synced
-        .settings_config
-        .get("config")
-        .and_then(|v| v.as_str())
-        .expect("config string");
-    assert_eq!(synced_cfg, toml_text);
-}
-
 #[test]
 fn sync_enabled_to_codex_writes_enabled_servers() {
     let _guard = test_mutex().lock().expect("acquire test mutex");
@@ -338,46 +209,6 @@ fn sync_enabled_to_codex_returns_error_on_invalid_toml() {
     }
 }
 
-#[test]
-fn sync_codex_provider_missing_auth_returns_error() {
-    let _guard = test_mutex().lock().expect("acquire test mutex");
-    reset_test_fs();
-
-    let mut config = MultiAppConfig::default();
-    let provider = Provider::with_id(
-        "codex-missing-auth".to_string(),
-        "No Auth".to_string(),
-        json!({
-            "config": "model = \"test\""
-        }),
-        None,
-    );
-    let manager = config
-        .get_manager_mut(&AppType::Codex)
-        .expect("codex manager");
-    manager.providers.insert(provider.id.clone(), provider);
-    manager.current = "codex-missing-auth".to_string();
-
-    let err = ConfigService::sync_current_providers_to_live(&mut config)
-        .expect_err("sync should fail when auth missing");
-    match err {
-        cc_switch_lib::AppError::Config(msg) => {
-            assert!(msg.contains("auth"), "error message should mention auth");
-        }
-        other => panic!("unexpected error variant: {other:?}"),
-    }
-
-    // 确认未产生任何 live 配置文件
-    assert!(
-        !cc_switch_lib::get_codex_auth_path().exists(),
-        "auth.json should not be created on failure"
-    );
-    assert!(
-        !cc_switch_lib::get_codex_config_path().exists(),
-        "config.toml should not be created on failure"
-    );
-}
-
 #[test]
 fn write_codex_live_atomic_persists_auth_and_config() {
     let _guard = test_mutex().lock().expect("acquire test mutex");
@@ -816,107 +647,6 @@ fn create_backup_retains_only_latest_entries() {
     );
 }
 
-#[test]
-fn sync_gemini_packycode_sets_security_selected_type() {
-    let _guard = test_mutex().lock().expect("acquire test mutex");
-    reset_test_fs();
-    let home = ensure_test_home();
-
-    let mut config = MultiAppConfig::default();
-    {
-        let manager = config
-            .get_manager_mut(&AppType::Gemini)
-            .expect("gemini manager");
-        manager.current = "packy-1".to_string();
-        manager.providers.insert(
-            "packy-1".to_string(),
-            Provider::with_id(
-                "packy-1".to_string(),
-                "PackyCode".to_string(),
-                json!({
-                    "env": {
-                        "GEMINI_API_KEY": "pk-key",
-                        "GOOGLE_GEMINI_BASE_URL": "https://api-slb.packyapi.com"
-                    }
-                }),
-                Some("https://www.packyapi.com".to_string()),
-            ),
-        );
-    }
-
-    ConfigService::sync_current_providers_to_live(&mut config)
-        .expect("syncing gemini live should succeed");
-
-    // security field is written to ~/.gemini/settings.json, not ~/.cc-switch/settings.json
-    let gemini_settings = home.join(".gemini").join("settings.json");
-    assert!(
-        gemini_settings.exists(),
-        "Gemini settings.json should exist at {}",
-        gemini_settings.display()
-    );
-
-    let raw = std::fs::read_to_string(&gemini_settings).expect("read gemini settings.json");
-    let value: serde_json::Value = serde_json::from_str(&raw).expect("parse gemini settings.json");
-    assert_eq!(
-        value
-            .pointer("/security/auth/selectedType")
-            .and_then(|v| v.as_str()),
-        Some("gemini-api-key"),
-        "syncing PackyCode Gemini should enforce security.auth.selectedType in Gemini settings"
-    );
-}
-
-#[test]
-fn sync_gemini_google_official_sets_oauth_security() {
-    let _guard = test_mutex().lock().expect("acquire test mutex");
-    reset_test_fs();
-    let home = ensure_test_home();
-
-    let mut config = MultiAppConfig::default();
-    {
-        let manager = config
-            .get_manager_mut(&AppType::Gemini)
-            .expect("gemini manager");
-        manager.current = "google-official".to_string();
-        let mut provider = Provider::with_id(
-            "google-official".to_string(),
-            "Google".to_string(),
-            json!({
-                "env": {}
-            }),
-            Some("https://ai.google.dev".to_string()),
-        );
-        provider.meta = Some(ProviderMeta {
-            partner_promotion_key: Some("google-official".to_string()),
-            ..ProviderMeta::default()
-        });
-        manager
-            .providers
-            .insert("google-official".to_string(), provider);
-    }
-
-    ConfigService::sync_current_providers_to_live(&mut config)
-        .expect("syncing google official gemini should succeed");
-
-    // security field is written to ~/.gemini/settings.json, not ~/.cc-switch/settings.json
-    let gemini_settings = home.join(".gemini").join("settings.json");
-    assert!(
-        gemini_settings.exists(),
-        "Gemini settings should exist at {}",
-        gemini_settings.display()
-    );
-    let gemini_raw = std::fs::read_to_string(&gemini_settings).expect("read gemini settings");
-    let gemini_value: serde_json::Value =
-        serde_json::from_str(&gemini_raw).expect("parse gemini settings json");
-    assert_eq!(
-        gemini_value
-            .pointer("/security/auth/selectedType")
-            .and_then(|v| v.as_str()),
-        Some("oauth-personal"),
-        "Gemini settings should record oauth-personal for Google Official"
-    );
-}
-
 #[test]
 fn export_sql_writes_to_target_path() {
     let _guard = test_mutex().lock().expect("acquire test mutex");
diff --git a/src-tauri/tests/provider_commands.rs b/src-tauri/tests/provider_commands.rs
index 328848926..148c00db6 100644
--- a/src-tauri/tests/provider_commands.rs
+++ b/src-tauri/tests/provider_commands.rs
@@ -100,9 +100,12 @@ command = "say"
     );
 
     let config_text = std::fs::read_to_string(get_codex_config_path()).expect("read config.toml");
+    // With partial merge, only key fields (model, provider, model_providers) are
+    // merged into config.toml. The existing MCP section should be preserved.
+    // MCP sync from DB is handled separately (at startup or explicit sync).
     assert!(
-        config_text.contains("mcp_servers.echo-server"),
-        "config.toml should contain synced MCP servers"
+        config_text.contains("mcp_servers.legacy"),
+        "config.toml should preserve existing MCP servers after partial merge"
     );
 
     let current_id = app_state
@@ -126,12 +129,9 @@ command = "say"
         .get("config")
         .and_then(|v| v.as_str())
         .unwrap_or_default();
-    // 供应商配置应该包含在 live 文件中
-    // 注意：live 文件还会包含 MCP 同步后的内容
-    assert!(
-        config_text.contains("mcp_servers.latest"),
-        "live file should contain provider's original config"
-    );
+    // With partial merge, only key fields (model_provider, model, model_providers)
+    // are written to the live file. MCP servers are synced separately.
+    // The provider's stored config should still contain mcp_servers.latest.
     assert!(
         new_config_text.contains("mcp_servers.latest"),
         "provider snapshot should contain provider's original config"
@@ -268,11 +268,22 @@ fn switch_provider_updates_claude_live_and_state() {
     let legacy_provider = providers
         .get("old-provider")
         .expect("legacy provider still exists");
-    // 回填机制：切换前会将 live 配置回填到当前供应商
-    // 这保护了用户在 live 文件中的手动修改
+    // Backfill mechanism: before switching, the live config's key fields are
+    // backfilled to the current provider. With partial merge, only key fields
+    // (auth, model, endpoint) are extracted — non-key fields like workspace
+    // are NOT included in the backfill.
     assert_eq!(
-        legacy_provider.settings_config, legacy_live,
-        "previous provider should be backfilled with live config"
+        legacy_provider
+            .settings_config
+            .get("env")
+            .and_then(|env| env.get("ANTHROPIC_API_KEY"))
+            .and_then(|key| key.as_str()),
+        Some("legacy-key"),
+        "previous provider should be backfilled with live auth key"
+    );
+    assert!(
+        legacy_provider.settings_config.get("workspace").is_none(),
+        "backfill should NOT include non-key fields like workspace"
     );
 
     let new_provider = providers.get("new-provider").expect("new provider exists");
diff --git a/src-tauri/tests/provider_service.rs b/src-tauri/tests/provider_service.rs
index 6288bddd0..ad664253b 100644
--- a/src-tauri/tests/provider_service.rs
+++ b/src-tauri/tests/provider_service.rs
@@ -112,9 +112,12 @@ command = "say"
 
     let config_text =
         std::fs::read_to_string(cc_switch_lib::get_codex_config_path()).expect("read config.toml");
+    // With partial merge, only key fields (model, provider, model_providers) are
+    // merged into config.toml. The existing MCP section should be preserved.
+    // MCP sync from DB is handled separately (at startup or explicit sync).
     assert!(
-        config_text.contains("mcp_servers.echo-server"),
-        "config.toml should contain synced MCP servers"
+        config_text.contains("mcp_servers.legacy"),
+        "config.toml should preserve existing MCP servers after partial merge"
     );
 
     let current_id = state
@@ -143,11 +146,6 @@ command = "say"
         new_config_text.contains("mcp_servers.latest"),
         "provider config should contain original MCP servers"
     );
-    // live 文件额外包含同步的 MCP 服务器
-    assert!(
-        config_text.contains("mcp_servers.echo-server"),
-        "live config should include synced MCP servers"
-    );
 
     let legacy = providers
         .get("old-provider")
@@ -414,9 +412,19 @@ fn provider_service_switch_claude_updates_live_and_state() {
     let legacy_provider = providers
         .get("old-provider")
         .expect("legacy provider still exists");
+    // With partial merge backfill, only key fields are extracted from live config
     assert_eq!(
-        legacy_provider.settings_config, legacy_live,
-        "previous provider should receive backfilled live config"
+        legacy_provider
+            .settings_config
+            .get("env")
+            .and_then(|env| env.get("ANTHROPIC_API_KEY"))
+            .and_then(|key| key.as_str()),
+        Some("legacy-key"),
+        "previous provider should receive backfilled auth key"
+    );
+    assert!(
+        legacy_provider.settings_config.get("workspace").is_none(),
+        "backfill should NOT include non-key fields like workspace"
     );
 }
 
diff --git a/src/components/providers/forms/ClaudeFormFields.tsx b/src/components/providers/forms/ClaudeFormFields.tsx
index 699f5aa01..9dd750576 100644
--- a/src/components/providers/forms/ClaudeFormFields.tsx
+++ b/src/components/providers/forms/ClaudeFormFields.tsx
@@ -10,7 +10,11 @@ import {
 } from "@/components/ui/select";
 import EndpointSpeedTest from "./EndpointSpeedTest";
 import { ApiKeySection, EndpointField } from "./shared";
-import type { ProviderCategory, ClaudeApiFormat } from "@/types";
+import type {
+  ProviderCategory,
+  ClaudeApiFormat,
+  ClaudeApiKeyField,
+} from "@/types";
 import type { TemplateValueConfig } from "@/config/claudeProviderPresets";
 
 interface EndpointCandidate {
@@ -68,6 +72,10 @@ interface ClaudeFormFieldsProps {
   // API Format (for third-party providers that use OpenAI Chat Completions format)
   apiFormat: ClaudeApiFormat;
   onApiFormatChange: (format: ClaudeApiFormat) => void;
+
+  // Auth Key Field (ANTHROPIC_AUTH_TOKEN vs ANTHROPIC_API_KEY)
+  apiKeyField: ClaudeApiKeyField;
+  onApiKeyFieldChange: (field: ClaudeApiKeyField) => void;
 }
 
 export function ClaudeFormFields({
@@ -102,6 +110,8 @@ export function ClaudeFormFields({
   speedTestEndpoints,
   apiFormat,
   onApiFormatChange,
+  apiKeyField,
+  onApiKeyFieldChange,
 }: ClaudeFormFieldsProps) {
   const { t } = useTranslation();
 
@@ -219,6 +229,41 @@ export function ClaudeFormFields({
         </div>
       )}
 
+      {/* 认证字段选择（仅非官方供应商显示） */}
+      {shouldShowModelSelector && (
+        <div className="space-y-2">
+          <FormLabel htmlFor="apiKeyField">
+            {t("providerForm.authField", { defaultValue: "认证字段" })}
+          </FormLabel>
+          <Select
+            value={apiKeyField}
+            onValueChange={(v) => onApiKeyFieldChange(v as ClaudeApiKeyField)}
+          >
+            <SelectTrigger id="apiKeyField" className="w-full">
+              <SelectValue />
+            </SelectTrigger>
+            <SelectContent>
+              <SelectItem value="ANTHROPIC_AUTH_TOKEN">
+                {t("providerForm.authFieldAuthToken", {
+                  defaultValue: "Auth Token (默认)",
+                })}
+              </SelectItem>
+              <SelectItem value="ANTHROPIC_API_KEY">
+                {t("providerForm.authFieldApiKey", {
+                  defaultValue: "API Key",
+                })}
+              </SelectItem>
+            </SelectContent>
+          </Select>
+          <p className="text-xs text-muted-foreground">
+            {t("providerForm.authFieldHint", {
+              defaultValue:
+                "大多数第三方供应商使用 Auth Token；少数供应商需要 API Key",
+            })}
+          </p>
+        </div>
+      )}
+
       {/* 模型选择器 */}
       {shouldShowModelSelector && (
         <div className="space-y-3">
diff --git a/src/components/providers/forms/ClaudeQuickToggles.tsx b/src/components/providers/forms/ClaudeQuickToggles.tsx
new file mode 100644
index 000000000..87a0d2423
--- /dev/null
+++ b/src/components/providers/forms/ClaudeQuickToggles.tsx
@@ -0,0 +1,134 @@
+import { useState, useEffect, useCallback } from "react";
+import { useTranslation } from "react-i18next";
+import { invoke } from "@tauri-apps/api/core";
+import { Checkbox } from "@/components/ui/checkbox";
+
+type ToggleKey = "hideAttribution" | "alwaysThinking" | "enableTeammates";
+
+interface ClaudeQuickTogglesProps {
+  /** Called after a patch is applied to the live file, so the caller can mirror it in the JSON editor. */
+  onPatchApplied?: (patch: Record<string, unknown>) => void;
+}
+
+const defaultStates: Record<ToggleKey, boolean> = {
+  hideAttribution: false,
+  alwaysThinking: false,
+  enableTeammates: false,
+};
+
+function deriveStates(
+  cfg: Record<string, unknown>,
+): Record<ToggleKey, boolean> {
+  const env = cfg?.env as Record<string, unknown> | undefined;
+  const attr = cfg?.attribution as Record<string, unknown> | undefined;
+  return {
+    hideAttribution: attr?.commit === "" && attr?.pr === "",
+    alwaysThinking: cfg?.alwaysThinkingEnabled === true,
+    enableTeammates: env?.CLAUDE_CODE_EXPERIMENTAL_AGENT_TEAMS === "1",
+  };
+}
+
+/** Apply RFC 7396 JSON Merge Patch in-place: null = delete, object = recurse, else overwrite. */
+function jsonMergePatch(
+  target: Record<string, unknown>,
+  patch: Record<string, unknown>,
+) {
+  for (const [key, value] of Object.entries(patch)) {
+    if (value === null || value === undefined) {
+      delete target[key];
+    } else if (typeof value === "object" && !Array.isArray(value)) {
+      if (
+        typeof target[key] !== "object" ||
+        target[key] === null ||
+        Array.isArray(target[key])
+      ) {
+        target[key] = {};
+      }
+      jsonMergePatch(
+        target[key] as Record<string, unknown>,
+        value as Record<string, unknown>,
+      );
+      if (Object.keys(target[key] as Record<string, unknown>).length === 0) {
+        delete target[key];
+      }
+    } else {
+      target[key] = value;
+    }
+  }
+}
+
+export { jsonMergePatch };
+
+export function ClaudeQuickToggles({
+  onPatchApplied,
+}: ClaudeQuickTogglesProps) {
+  const { t } = useTranslation();
+  const [states, setStates] = useState(defaultStates);
+
+  const readLive = useCallback(async () => {
+    try {
+      const cfg = await invoke<Record<string, unknown>>(
+        "read_live_provider_settings",
+        { app: "claude" },
+      );
+      setStates(deriveStates(cfg));
+    } catch {
+      // Live file missing or unreadable — show all unchecked
+    }
+  }, []);
+
+  useEffect(() => {
+    readLive();
+  }, [readLive]);
+
+  const toggle = useCallback(
+    async (key: ToggleKey) => {
+      let patch: Record<string, unknown>;
+      if (key === "hideAttribution") {
+        patch = states.hideAttribution
+          ? { attribution: null }
+          : { attribution: { commit: "", pr: "" } };
+      } else if (key === "alwaysThinking") {
+        patch = states.alwaysThinking
+          ? { alwaysThinkingEnabled: null }
+          : { alwaysThinkingEnabled: true };
+      } else {
+        patch = states.enableTeammates
+          ? { env: { CLAUDE_CODE_EXPERIMENTAL_AGENT_TEAMS: null } }
+          : { env: { CLAUDE_CODE_EXPERIMENTAL_AGENT_TEAMS: "1" } };
+      }
+
+      // Optimistic update
+      setStates((prev) => ({ ...prev, [key]: !prev[key] }));
+
+      try {
+        await invoke("patch_claude_live_settings", { patch });
+        onPatchApplied?.(patch);
+      } catch {
+        // Revert on failure
+        readLive();
+      }
+    },
+    [states, readLive, onPatchApplied],
+  );
+
+  return (
+    <div className="flex flex-wrap gap-x-4 gap-y-1">
+      {(
+        [
+          ["hideAttribution", "claudeConfig.hideAttribution"],
+          ["alwaysThinking", "claudeConfig.alwaysThinking"],
+          ["enableTeammates", "claudeConfig.enableTeammates"],
+        ] as const
+      ).map(([key, i18nKey]) => (
+        <label
+          key={key}
+          className="flex items-center gap-1.5 text-sm cursor-pointer"
+        >
+          <Checkbox checked={states[key]} onCheckedChange={() => toggle(key)} />
+          {t(i18nKey)}
+        </label>
+      ))}
+    </div>
+  );
+}
diff --git a/src/components/providers/forms/CodexCommonConfigModal.tsx b/src/components/providers/forms/CodexCommonConfigModal.tsx
deleted file mode 100644
index e8ddb8664..000000000
--- a/src/components/providers/forms/CodexCommonConfigModal.tsx
+++ /dev/null
@@ -1,107 +0,0 @@
-import React, { useEffect, useState } from "react";
-import { Save, Download, Loader2 } from "lucide-react";
-import { useTranslation } from "react-i18next";
-import { FullScreenPanel } from "@/components/common/FullScreenPanel";
-import { Button } from "@/components/ui/button";
-import JsonEditor from "@/components/JsonEditor";
-
-interface CodexCommonConfigModalProps {
-  isOpen: boolean;
-  onClose: () => void;
-  value: string;
-  onChange: (value: string) => void;
-  error?: string;
-  onExtract?: () => void;
-  isExtracting?: boolean;
-}
-
-/**
- * CodexCommonConfigModal - Common Codex configuration editor modal
- * Allows editing of common TOML configuration shared across providers
- */
-export const CodexCommonConfigModal: React.FC<CodexCommonConfigModalProps> = ({
-  isOpen,
-  onClose,
-  value,
-  onChange,
-  error,
-  onExtract,
-  isExtracting,
-}) => {
-  const { t } = useTranslation();
-  const [isDarkMode, setIsDarkMode] = useState(false);
-
-  useEffect(() => {
-    setIsDarkMode(document.documentElement.classList.contains("dark"));
-
-    const observer = new MutationObserver(() => {
-      setIsDarkMode(document.documentElement.classList.contains("dark"));
-    });
-
-    observer.observe(document.documentElement, {
-      attributes: true,
-      attributeFilter: ["class"],
-    });
-
-    return () => observer.disconnect();
-  }, []);
-
-  return (
-    <FullScreenPanel
-      isOpen={isOpen}
-      title={t("codexConfig.editCommonConfigTitle")}
-      onClose={onClose}
-      footer={
-        <>
-          {onExtract && (
-            <Button
-              type="button"
-              variant="outline"
-              onClick={onExtract}
-              disabled={isExtracting}
-              className="gap-2"
-            >
-              {isExtracting ? (
-                <Loader2 className="w-4 h-4 animate-spin" />
-              ) : (
-                <Download className="w-4 h-4" />
-              )}
-              {t("codexConfig.extractFromCurrent", {
-                defaultValue: "从编辑内容提取",
-              })}
-            </Button>
-          )}
-          <Button type="button" variant="outline" onClick={onClose}>
-            {t("common.cancel")}
-          </Button>
-          <Button type="button" onClick={onClose} className="gap-2">
-            <Save className="w-4 h-4" />
-            {t("common.save")}
-          </Button>
-        </>
-      }
-    >
-      <div className="space-y-4">
-        <p className="text-sm text-muted-foreground">
-          {t("codexConfig.commonConfigHint")}
-        </p>
-
-        <JsonEditor
-          value={value}
-          onChange={onChange}
-          placeholder={`# Common Codex config
-
-# Add your common TOML configuration here`}
-          darkMode={isDarkMode}
-          rows={16}
-          showValidation={false}
-          language="javascript"
-        />
-
-        {error && (
-          <p className="text-sm text-red-500 dark:text-red-400">{error}</p>
-        )}
-      </div>
-    </FullScreenPanel>
-  );
-};
diff --git a/src/components/providers/forms/CodexConfigEditor.tsx b/src/components/providers/forms/CodexConfigEditor.tsx
index 42ba3cae3..cd65d8d01 100644
--- a/src/components/providers/forms/CodexConfigEditor.tsx
+++ b/src/components/providers/forms/CodexConfigEditor.tsx
@@ -1,6 +1,5 @@
-import React, { useState, useEffect } from "react";
+import React from "react";
 import { CodexAuthSection, CodexConfigSection } from "./CodexConfigSections";
-import { CodexCommonConfigModal } from "./CodexCommonConfigModal";
 
 interface CodexConfigEditorProps {
   authValue: string;
@@ -13,23 +12,9 @@ interface CodexConfigEditorProps {
 
   onAuthBlur?: () => void;
 
-  useCommonConfig: boolean;
-
-  onCommonConfigToggle: (checked: boolean) => void;
-
-  commonConfigSnippet: string;
-
-  onCommonConfigSnippetChange: (value: string) => void;
-
-  commonConfigError: string;
-
   authError: string;
 
-  configError: string; // config.toml 错误提示
-
-  onExtract?: () => void;
-
-  isExtracting?: boolean;
+  configError: string;
 }
 
 const CodexConfigEditor: React.FC<CodexConfigEditorProps> = ({
@@ -38,25 +23,9 @@ const CodexConfigEditor: React.FC<CodexConfigEditorProps> = ({
   onAuthChange,
   onConfigChange,
   onAuthBlur,
-  useCommonConfig,
-  onCommonConfigToggle,
-  commonConfigSnippet,
-  onCommonConfigSnippetChange,
-  commonConfigError,
   authError,
   configError,
-  onExtract,
-  isExtracting,
 }) => {
-  const [isCommonConfigModalOpen, setIsCommonConfigModalOpen] = useState(false);
-
-  // Auto-open common config modal if there's an error
-  useEffect(() => {
-    if (commonConfigError && !isCommonConfigModalOpen) {
-      setIsCommonConfigModalOpen(true);
-    }
-  }, [commonConfigError, isCommonConfigModalOpen]);
-
   return (
     <div className="space-y-6">
       {/* Auth JSON Section */}
@@ -71,23 +40,8 @@ const CodexConfigEditor: React.FC<CodexConfigEditorProps> = ({
       <CodexConfigSection
         value={configValue}
         onChange={onConfigChange}
-        useCommonConfig={useCommonConfig}
-        onCommonConfigToggle={onCommonConfigToggle}
-        onEditCommonConfig={() => setIsCommonConfigModalOpen(true)}
-        commonConfigError={commonConfigError}
         configError={configError}
       />
-
-      {/* Common Config Modal */}
-      <CodexCommonConfigModal
-        isOpen={isCommonConfigModalOpen}
-        onClose={() => setIsCommonConfigModalOpen(false)}
-        value={commonConfigSnippet}
-        onChange={onCommonConfigSnippetChange}
-        error={commonConfigError}
-        onExtract={onExtract}
-        isExtracting={isExtracting}
-      />
     </div>
   );
 };
diff --git a/src/components/providers/forms/CodexConfigSections.tsx b/src/components/providers/forms/CodexConfigSections.tsx
index 99ada4273..83971f277 100644
--- a/src/components/providers/forms/CodexConfigSections.tsx
+++ b/src/components/providers/forms/CodexConfigSections.tsx
@@ -78,10 +78,6 @@ export const CodexAuthSection: React.FC<CodexAuthSectionProps> = ({
 interface CodexConfigSectionProps {
   value: string;
   onChange: (value: string) => void;
-  useCommonConfig: boolean;
-  onCommonConfigToggle: (checked: boolean) => void;
-  onEditCommonConfig: () => void;
-  commonConfigError?: string;
   configError?: string;
 }
 
@@ -91,10 +87,6 @@ interface CodexConfigSectionProps {
 export const CodexConfigSection: React.FC<CodexConfigSectionProps> = ({
   value,
   onChange,
-  useCommonConfig,
-  onCommonConfigToggle,
-  onEditCommonConfig,
-  commonConfigError,
   configError,
 }) => {
   const { t } = useTranslation();
@@ -117,40 +109,12 @@ export const CodexConfigSection: React.FC<CodexConfigSectionProps> = ({
 
   return (
     <div className="space-y-2">
-      <div className="flex items-center justify-between">
-        <label
-          htmlFor="codexConfig"
-          className="block text-sm font-medium text-foreground"
-        >
-          {t("codexConfig.configToml")}
-        </label>
-
-        <label className="inline-flex items-center gap-2 text-sm text-muted-foreground cursor-pointer">
-          <input
-            type="checkbox"
-            checked={useCommonConfig}
-            onChange={(e) => onCommonConfigToggle(e.target.checked)}
-            className="w-4 h-4 text-blue-500 bg-white dark:bg-gray-800 border-border-default  rounded focus:ring-blue-500 dark:focus:ring-blue-400 focus:ring-2"
-          />
-          {t("codexConfig.writeCommonConfig")}
-        </label>
-      </div>
-
-      <div className="flex items-center justify-end">
-        <button
-          type="button"
-          onClick={onEditCommonConfig}
-          className="text-xs text-blue-500 dark:text-blue-400 hover:underline"
-        >
-          {t("codexConfig.editCommonConfig")}
-        </button>
-      </div>
-
-      {commonConfigError && (
-        <p className="text-xs text-red-500 dark:text-red-400 text-right">
-          {commonConfigError}
-        </p>
-      )}
+      <label
+        htmlFor="codexConfig"
+        className="block text-sm font-medium text-foreground"
+      >
+        {t("codexConfig.configToml")}
+      </label>
 
       <JsonEditor
         value={value}
diff --git a/src/components/providers/forms/CommonConfigEditor.tsx b/src/components/providers/forms/CommonConfigEditor.tsx
deleted file mode 100644
index b81bea564..000000000
--- a/src/components/providers/forms/CommonConfigEditor.tsx
+++ /dev/null
@@ -1,280 +0,0 @@
-import { useTranslation } from "react-i18next";
-import { useEffect, useState, useCallback, useMemo } from "react";
-import { FullScreenPanel } from "@/components/common/FullScreenPanel";
-import { Label } from "@/components/ui/label";
-import { Button } from "@/components/ui/button";
-import { Save, Download, Loader2 } from "lucide-react";
-import JsonEditor from "@/components/JsonEditor";
-
-interface CommonConfigEditorProps {
-  value: string;
-  onChange: (value: string) => void;
-  useCommonConfig: boolean;
-  onCommonConfigToggle: (checked: boolean) => void;
-  commonConfigSnippet: string;
-  onCommonConfigSnippetChange: (value: string) => void;
-  commonConfigError: string;
-  onEditClick: () => void;
-  isModalOpen: boolean;
-  onModalClose: () => void;
-  onExtract?: () => void;
-  isExtracting?: boolean;
-}
-
-export function CommonConfigEditor({
-  value,
-  onChange,
-  useCommonConfig,
-  onCommonConfigToggle,
-  commonConfigSnippet,
-  onCommonConfigSnippetChange,
-  commonConfigError,
-  onEditClick,
-  isModalOpen,
-  onModalClose,
-  onExtract,
-  isExtracting,
-}: CommonConfigEditorProps) {
-  const { t } = useTranslation();
-  const [isDarkMode, setIsDarkMode] = useState(false);
-
-  useEffect(() => {
-    setIsDarkMode(document.documentElement.classList.contains("dark"));
-
-    const observer = new MutationObserver(() => {
-      setIsDarkMode(document.documentElement.classList.contains("dark"));
-    });
-
-    observer.observe(document.documentElement, {
-      attributes: true,
-      attributeFilter: ["class"],
-    });
-
-    return () => observer.disconnect();
-  }, []);
-
-  // Mirror value prop to local state so checkbox toggles and JsonEditor stay in sync
-  // (parent uses form.getValues which doesn't trigger re-renders)
-  const [localValue, setLocalValue] = useState(value);
-
-  useEffect(() => {
-    setLocalValue(value);
-  }, [value]);
-
-  const handleLocalChange = useCallback(
-    (newValue: string) => {
-      setLocalValue(newValue);
-      onChange(newValue);
-    },
-    [onChange],
-  );
-
-  const toggleStates = useMemo(() => {
-    try {
-      const config = JSON.parse(localValue);
-      return {
-        hideAttribution:
-          config?.attribution?.commit === "" && config?.attribution?.pr === "",
-        alwaysThinking: config?.alwaysThinkingEnabled === true,
-        teammates:
-          config?.env?.CLAUDE_CODE_EXPERIMENTAL_AGENT_TEAMS === "1" ||
-          config?.env?.CLAUDE_CODE_EXPERIMENTAL_AGENT_TEAMS === 1,
-      };
-    } catch {
-      return {
-        hideAttribution: false,
-        alwaysThinking: false,
-        teammates: false,
-      };
-    }
-  }, [localValue]);
-
-  const handleToggle = useCallback(
-    (toggleKey: string, checked: boolean) => {
-      try {
-        const config = JSON.parse(localValue || "{}");
-
-        switch (toggleKey) {
-          case "hideAttribution":
-            if (checked) {
-              config.attribution = { commit: "", pr: "" };
-            } else {
-              delete config.attribution;
-            }
-            break;
-          case "alwaysThinking":
-            if (checked) {
-              config.alwaysThinkingEnabled = true;
-            } else {
-              delete config.alwaysThinkingEnabled;
-            }
-            break;
-          case "teammates":
-            if (!config.env) config.env = {};
-            if (checked) {
-              config.env.CLAUDE_CODE_EXPERIMENTAL_AGENT_TEAMS = "1";
-            } else {
-              delete config.env.CLAUDE_CODE_EXPERIMENTAL_AGENT_TEAMS;
-              if (Object.keys(config.env).length === 0) delete config.env;
-            }
-            break;
-        }
-
-        handleLocalChange(JSON.stringify(config, null, 2));
-      } catch {
-        // Don't modify if JSON is invalid
-      }
-    },
-    [localValue, handleLocalChange],
-  );
-
-  return (
-    <>
-      <div className="space-y-2">
-        <div className="flex items-center justify-between">
-          <Label htmlFor="settingsConfig">{t("provider.configJson")}</Label>
-          <div className="flex items-center gap-2">
-            <label className="inline-flex items-center gap-2 text-sm text-muted-foreground cursor-pointer">
-              <input
-                type="checkbox"
-                id="useCommonConfig"
-                checked={useCommonConfig}
-                onChange={(e) => onCommonConfigToggle(e.target.checked)}
-                className="w-4 h-4 text-blue-500 bg-white dark:bg-gray-800 border-border-default rounded focus:ring-blue-500 dark:focus:ring-blue-400 focus:ring-2"
-              />
-              <span>
-                {t("claudeConfig.writeCommonConfig", {
-                  defaultValue: "写入通用配置",
-                })}
-              </span>
-            </label>
-          </div>
-        </div>
-        <div className="flex items-center justify-end">
-          <button
-            type="button"
-            onClick={onEditClick}
-            className="text-xs text-blue-400 dark:text-blue-500 hover:text-blue-500 dark:hover:text-blue-400 transition-colors"
-          >
-            {t("claudeConfig.editCommonConfig", {
-              defaultValue: "编辑通用配置",
-            })}
-          </button>
-        </div>
-        {commonConfigError && !isModalOpen && (
-          <p className="text-xs text-red-500 dark:text-red-400 text-right">
-            {commonConfigError}
-          </p>
-        )}
-        <div className="flex flex-wrap items-center gap-x-4 gap-y-1">
-          <label className="inline-flex items-center gap-2 text-sm text-muted-foreground cursor-pointer">
-            <input
-              type="checkbox"
-              checked={toggleStates.hideAttribution}
-              onChange={(e) =>
-                handleToggle("hideAttribution", e.target.checked)
-              }
-              className="w-4 h-4 text-blue-500 bg-white dark:bg-gray-800 border-border-default rounded focus:ring-blue-500 dark:focus:ring-blue-400 focus:ring-2"
-            />
-            <span>{t("claudeConfig.hideAttribution")}</span>
-          </label>
-          <label className="inline-flex items-center gap-2 text-sm text-muted-foreground cursor-pointer">
-            <input
-              type="checkbox"
-              checked={toggleStates.alwaysThinking}
-              onChange={(e) => handleToggle("alwaysThinking", e.target.checked)}
-              className="w-4 h-4 text-blue-500 bg-white dark:bg-gray-800 border-border-default rounded focus:ring-blue-500 dark:focus:ring-blue-400 focus:ring-2"
-            />
-            <span>{t("claudeConfig.alwaysThinking")}</span>
-          </label>
-          <label className="inline-flex items-center gap-2 text-sm text-muted-foreground cursor-pointer">
-            <input
-              type="checkbox"
-              checked={toggleStates.teammates}
-              onChange={(e) => handleToggle("teammates", e.target.checked)}
-              className="w-4 h-4 text-blue-500 bg-white dark:bg-gray-800 border-border-default rounded focus:ring-blue-500 dark:focus:ring-blue-400 focus:ring-2"
-            />
-            <span>{t("claudeConfig.enableTeammates")}</span>
-          </label>
-        </div>
-        <JsonEditor
-          value={localValue}
-          onChange={handleLocalChange}
-          placeholder={`{
-  "env": {
-    "ANTHROPIC_BASE_URL": "https://your-api-endpoint.com",
-    "ANTHROPIC_AUTH_TOKEN": "your-api-key-here"
-  }
-}`}
-          darkMode={isDarkMode}
-          rows={14}
-          showValidation={true}
-          language="json"
-        />
-      </div>
-
-      <FullScreenPanel
-        isOpen={isModalOpen}
-        title={t("claudeConfig.editCommonConfigTitle", {
-          defaultValue: "编辑通用配置片段",
-        })}
-        onClose={onModalClose}
-        footer={
-          <>
-            {onExtract && (
-              <Button
-                type="button"
-                variant="outline"
-                onClick={onExtract}
-                disabled={isExtracting}
-                className="gap-2"
-              >
-                {isExtracting ? (
-                  <Loader2 className="w-4 h-4 animate-spin" />
-                ) : (
-                  <Download className="w-4 h-4" />
-                )}
-                {t("claudeConfig.extractFromCurrent", {
-                  defaultValue: "从编辑内容提取",
-                })}
-              </Button>
-            )}
-            <Button type="button" variant="outline" onClick={onModalClose}>
-              {t("common.cancel")}
-            </Button>
-            <Button type="button" onClick={onModalClose} className="gap-2">
-              <Save className="w-4 h-4" />
-              {t("common.save")}
-            </Button>
-          </>
-        }
-      >
-        <div className="space-y-4">
-          <p className="text-sm text-muted-foreground">
-            {t("claudeConfig.commonConfigHint", {
-              defaultValue: "通用配置片段将合并到所有启用它的供应商配置中",
-            })}
-          </p>
-          <JsonEditor
-            value={commonConfigSnippet}
-            onChange={onCommonConfigSnippetChange}
-            placeholder={`{
-  "env": {
-    "ANTHROPIC_BASE_URL": "https://your-api-endpoint.com"
-  }
-}`}
-            darkMode={isDarkMode}
-            rows={16}
-            showValidation={true}
-            language="json"
-          />
-          {commonConfigError && (
-            <p className="text-sm text-red-500 dark:text-red-400">
-              {commonConfigError}
-            </p>
-          )}
-        </div>
-      </FullScreenPanel>
-    </>
-  );
-}
diff --git a/src/components/providers/forms/GeminiCommonConfigModal.tsx b/src/components/providers/forms/GeminiCommonConfigModal.tsx
deleted file mode 100644
index c7413217c..000000000
--- a/src/components/providers/forms/GeminiCommonConfigModal.tsx
+++ /dev/null
@@ -1,106 +0,0 @@
-import React, { useEffect, useState } from "react";
-import { Save, Download, Loader2 } from "lucide-react";
-import { useTranslation } from "react-i18next";
-import { FullScreenPanel } from "@/components/common/FullScreenPanel";
-import { Button } from "@/components/ui/button";
-import JsonEditor from "@/components/JsonEditor";
-
-interface GeminiCommonConfigModalProps {
-  isOpen: boolean;
-  onClose: () => void;
-  value: string;
-  onChange: (value: string) => void;
-  error?: string;
-  onExtract?: () => void;
-  isExtracting?: boolean;
-}
-
-/**
- * GeminiCommonConfigModal - Common Gemini configuration editor modal
- * Allows editing of common env snippet shared across Gemini providers
- */
-export const GeminiCommonConfigModal: React.FC<
-  GeminiCommonConfigModalProps
-> = ({ isOpen, onClose, value, onChange, error, onExtract, isExtracting }) => {
-  const { t } = useTranslation();
-  const [isDarkMode, setIsDarkMode] = useState(false);
-
-  useEffect(() => {
-    setIsDarkMode(document.documentElement.classList.contains("dark"));
-
-    const observer = new MutationObserver(() => {
-      setIsDarkMode(document.documentElement.classList.contains("dark"));
-    });
-
-    observer.observe(document.documentElement, {
-      attributes: true,
-      attributeFilter: ["class"],
-    });
-
-    return () => observer.disconnect();
-  }, []);
-
-  return (
-    <FullScreenPanel
-      isOpen={isOpen}
-      title={t("geminiConfig.editCommonConfigTitle", {
-        defaultValue: "编辑 Gemini 通用配置片段",
-      })}
-      onClose={onClose}
-      footer={
-        <>
-          {onExtract && (
-            <Button
-              type="button"
-              variant="outline"
-              onClick={onExtract}
-              disabled={isExtracting}
-              className="gap-2"
-            >
-              {isExtracting ? (
-                <Loader2 className="w-4 h-4 animate-spin" />
-              ) : (
-                <Download className="w-4 h-4" />
-              )}
-              {t("geminiConfig.extractFromCurrent", {
-                defaultValue: "从编辑内容提取",
-              })}
-            </Button>
-          )}
-          <Button type="button" variant="outline" onClick={onClose}>
-            {t("common.cancel")}
-          </Button>
-          <Button type="button" onClick={onClose} className="gap-2">
-            <Save className="w-4 h-4" />
-            {t("common.save")}
-          </Button>
-        </>
-      }
-    >
-      <div className="space-y-4">
-        <p className="text-sm text-muted-foreground">
-          {t("geminiConfig.commonConfigHint", {
-            defaultValue:
-              "该片段会写入 Gemini 的 .env（不允许包含 GOOGLE_GEMINI_BASE_URL、GEMINI_API_KEY）",
-          })}
-        </p>
-
-        <JsonEditor
-          value={value}
-          onChange={onChange}
-          placeholder={`{
-  "GEMINI_MODEL": "gemini-3-pro-preview"
-}`}
-          darkMode={isDarkMode}
-          rows={16}
-          showValidation={true}
-          language="json"
-        />
-
-        {error && (
-          <p className="text-sm text-red-500 dark:text-red-400">{error}</p>
-        )}
-      </div>
-    </FullScreenPanel>
-  );
-};
diff --git a/src/components/providers/forms/GeminiConfigEditor.tsx b/src/components/providers/forms/GeminiConfigEditor.tsx
index 2518b051f..985570ac1 100644
--- a/src/components/providers/forms/GeminiConfigEditor.tsx
+++ b/src/components/providers/forms/GeminiConfigEditor.tsx
@@ -1,6 +1,5 @@
-import React, { useState, useEffect } from "react";
+import React from "react";
 import { GeminiEnvSection, GeminiConfigSection } from "./GeminiConfigSections";
-import { GeminiCommonConfigModal } from "./GeminiCommonConfigModal";
 
 interface GeminiConfigEditorProps {
   envValue: string;
@@ -8,15 +7,8 @@ interface GeminiConfigEditorProps {
   onEnvChange: (value: string) => void;
   onConfigChange: (value: string) => void;
   onEnvBlur?: () => void;
-  useCommonConfig: boolean;
-  onCommonConfigToggle: (checked: boolean) => void;
-  commonConfigSnippet: string;
-  onCommonConfigSnippetChange: (value: string) => void;
-  commonConfigError: string;
   envError: string;
   configError: string;
-  onExtract?: () => void;
-  isExtracting?: boolean;
 }
 
 const GeminiConfigEditor: React.FC<GeminiConfigEditorProps> = ({
@@ -25,25 +17,9 @@ const GeminiConfigEditor: React.FC<GeminiConfigEditorProps> = ({
   onEnvChange,
   onConfigChange,
   onEnvBlur,
-  useCommonConfig,
-  onCommonConfigToggle,
-  commonConfigSnippet,
-  onCommonConfigSnippetChange,
-  commonConfigError,
   envError,
   configError,
-  onExtract,
-  isExtracting,
 }) => {
-  const [isCommonConfigModalOpen, setIsCommonConfigModalOpen] = useState(false);
-
-  // Auto-open common config modal if there's an error
-  useEffect(() => {
-    if (commonConfigError && !isCommonConfigModalOpen) {
-      setIsCommonConfigModalOpen(true);
-    }
-  }, [commonConfigError, isCommonConfigModalOpen]);
-
   return (
     <div className="space-y-6">
       {/* Env Section */}
@@ -52,10 +28,6 @@ const GeminiConfigEditor: React.FC<GeminiConfigEditorProps> = ({
         onChange={onEnvChange}
         onBlur={onEnvBlur}
         error={envError}
-        useCommonConfig={useCommonConfig}
-        onCommonConfigToggle={onCommonConfigToggle}
-        onEditCommonConfig={() => setIsCommonConfigModalOpen(true)}
-        commonConfigError={commonConfigError}
       />
 
       {/* Config JSON Section */}
@@ -64,17 +36,6 @@ const GeminiConfigEditor: React.FC<GeminiConfigEditorProps> = ({
         onChange={onConfigChange}
         configError={configError}
       />
-
-      {/* Common Config Modal */}
-      <GeminiCommonConfigModal
-        isOpen={isCommonConfigModalOpen}
-        onClose={() => setIsCommonConfigModalOpen(false)}
-        value={commonConfigSnippet}
-        onChange={onCommonConfigSnippetChange}
-        error={commonConfigError}
-        onExtract={onExtract}
-        isExtracting={isExtracting}
-      />
     </div>
   );
 };
diff --git a/src/components/providers/forms/GeminiConfigSections.tsx b/src/components/providers/forms/GeminiConfigSections.tsx
index 999f986dc..2999fc309 100644
--- a/src/components/providers/forms/GeminiConfigSections.tsx
+++ b/src/components/providers/forms/GeminiConfigSections.tsx
@@ -7,10 +7,6 @@ interface GeminiEnvSectionProps {
   onChange: (value: string) => void;
   onBlur?: () => void;
   error?: string;
-  useCommonConfig: boolean;
-  onCommonConfigToggle: (checked: boolean) => void;
-  onEditCommonConfig: () => void;
-  commonConfigError?: string;
 }
 
 /**
@@ -21,10 +17,6 @@ export const GeminiEnvSection: React.FC<GeminiEnvSectionProps> = ({
   onChange,
   onBlur,
   error,
-  useCommonConfig,
-  onCommonConfigToggle,
-  onEditCommonConfig,
-  commonConfigError,
 }) => {
   const { t } = useTranslation();
   const [isDarkMode, setIsDarkMode] = useState(false);
@@ -53,44 +45,12 @@ export const GeminiEnvSection: React.FC<GeminiEnvSectionProps> = ({
 
   return (
     <div className="space-y-2">
-      <div className="flex items-center justify-between">
-        <label
-          htmlFor="geminiEnv"
-          className="block text-sm font-medium text-foreground"
-        >
-          {t("geminiConfig.envFile", { defaultValue: "环境变量 (.env)" })}
-        </label>
-
-        <label className="inline-flex items-center gap-2 text-sm text-muted-foreground cursor-pointer">
-          <input
-            type="checkbox"
-            checked={useCommonConfig}
-            onChange={(e) => onCommonConfigToggle(e.target.checked)}
-            className="w-4 h-4 text-blue-500 bg-white dark:bg-gray-800 border-border-default rounded focus:ring-blue-500 dark:focus:ring-blue-400 focus:ring-2"
-          />
-          {t("geminiConfig.writeCommonConfig", {
-            defaultValue: "写入通用配置",
-          })}
-        </label>
-      </div>
-
-      <div className="flex items-center justify-end">
-        <button
-          type="button"
-          onClick={onEditCommonConfig}
-          className="text-xs text-blue-500 dark:text-blue-400 hover:underline"
-        >
-          {t("geminiConfig.editCommonConfig", {
-            defaultValue: "编辑通用配置",
-          })}
-        </button>
-      </div>
-
-      {commonConfigError && (
-        <p className="text-xs text-red-500 dark:text-red-400 text-right">
-          {commonConfigError}
-        </p>
-      )}
+      <label
+        htmlFor="geminiEnv"
+        className="block text-sm font-medium text-foreground"
+      >
+        {t("geminiConfig.envFile", { defaultValue: "环境变量 (.env)" })}
+      </label>
 
       <JsonEditor
         value={value}
diff --git a/src/components/providers/forms/ProviderForm.tsx b/src/components/providers/forms/ProviderForm.tsx
index 79b7a21db..03f4da197 100644
--- a/src/components/providers/forms/ProviderForm.tsx
+++ b/src/components/providers/forms/ProviderForm.tsx
@@ -14,6 +14,7 @@ import type {
   ProviderTestConfig,
   ProviderProxyConfig,
   ClaudeApiFormat,
+  ClaudeApiKeyField,
 } from "@/types";
 import {
   providerPresets,
@@ -43,9 +44,9 @@ import { applyTemplateValues } from "@/utils/providerConfigUtils";
 import { mergeProviderMeta } from "@/utils/providerMetaUtils";
 import { getCodexCustomTemplate } from "@/config/codexTemplates";
 import CodexConfigEditor from "./CodexConfigEditor";
-import { CommonConfigEditor } from "./CommonConfigEditor";
 import GeminiConfigEditor from "./GeminiConfigEditor";
 import JsonEditor from "@/components/JsonEditor";
+import { ClaudeQuickToggles, jsonMergePatch } from "./ClaudeQuickToggles";
 import { Label } from "@/components/ui/label";
 import { ProviderPresetSelector } from "./ProviderPresetSelector";
 import { BasicFormFields } from "./BasicFormFields";
@@ -67,12 +68,9 @@ import {
   useCodexConfigState,
   useApiKeyLink,
   useTemplateValues,
-  useCommonConfigSnippet,
-  useCodexCommonConfig,
   useSpeedTestEndpoints,
   useCodexTomlValidation,
   useGeminiConfigState,
-  useGeminiCommonConfig,
   useOmoModelSource,
   useOpencodeFormState,
   useOmoDraftState,
@@ -243,6 +241,55 @@ export function ProviderForm({
     mode: "onSubmit",
   });
 
+  const [localApiFormat, setLocalApiFormat] = useState<ClaudeApiFormat>(() => {
+    if (appId !== "claude") return "anthropic";
+    return initialData?.meta?.apiFormat ?? "anthropic";
+  });
+
+  const handleApiFormatChange = useCallback((format: ClaudeApiFormat) => {
+    setLocalApiFormat(format);
+  }, []);
+
+  const [localApiKeyField, setLocalApiKeyField] = useState<ClaudeApiKeyField>(
+    () => {
+      if (appId !== "claude") return "ANTHROPIC_AUTH_TOKEN";
+      if (initialData?.meta?.apiKeyField) return initialData.meta.apiKeyField;
+      try {
+        const config = initialData?.settingsConfig;
+        if (
+          config?.env &&
+          (config.env as Record<string, unknown>).ANTHROPIC_API_KEY !==
+            undefined
+        )
+          return "ANTHROPIC_API_KEY";
+      } catch {}
+      return "ANTHROPIC_AUTH_TOKEN";
+    },
+  );
+
+  const handleApiKeyFieldChange = useCallback(
+    (field: ClaudeApiKeyField) => {
+      setLocalApiKeyField(field);
+      try {
+        const config = JSON.parse(form.getValues("settingsConfig") || "{}") as {
+          env?: Record<string, unknown>;
+        };
+        const env = (config.env ?? {}) as Record<string, unknown>;
+        const oldField =
+          field === "ANTHROPIC_API_KEY"
+            ? "ANTHROPIC_AUTH_TOKEN"
+            : "ANTHROPIC_API_KEY";
+        if (oldField in env) {
+          env[field] = env[oldField];
+          delete env[oldField];
+          config.env = env;
+          form.setValue("settingsConfig", JSON.stringify(config, null, 2));
+        }
+      } catch {}
+    },
+    [form],
+  );
+
   const {
     apiKey,
     handleApiKeyChange,
@@ -253,6 +300,7 @@ export function ProviderForm({
     selectedPresetId,
     category,
     appType: appId,
+    apiKeyField: appId === "claude" ? localApiKeyField : undefined,
   });
 
   const { baseUrl, handleClaudeBaseUrlChange } = useBaseUrlState({
@@ -276,15 +324,6 @@ export function ProviderForm({
     onConfigChange: (config) => form.setValue("settingsConfig", config),
   });
 
-  const [localApiFormat, setLocalApiFormat] = useState<ClaudeApiFormat>(() => {
-    if (appId !== "claude") return "anthropic";
-    return initialData?.meta?.apiFormat ?? "anthropic";
-  });
-
-  const handleApiFormatChange = useCallback((format: ClaudeApiFormat) => {
-    setLocalApiFormat(format);
-  }, []);
-
   const {
     codexAuth,
     codexConfig,
@@ -382,37 +421,6 @@ export function ProviderForm({
     onConfigChange: (config) => form.setValue("settingsConfig", config),
   });
 
-  const {
-    useCommonConfig,
-    commonConfigSnippet,
-    commonConfigError,
-    handleCommonConfigToggle,
-    handleCommonConfigSnippetChange,
-    isExtracting: isClaudeExtracting,
-    handleExtract: handleClaudeExtract,
-  } = useCommonConfigSnippet({
-    settingsConfig: form.getValues("settingsConfig"),
-    onConfigChange: (config) => form.setValue("settingsConfig", config),
-    initialData: appId === "claude" ? initialData : undefined,
-    selectedPresetId: selectedPresetId ?? undefined,
-    enabled: appId === "claude",
-  });
-
-  const {
-    useCommonConfig: useCodexCommonConfigFlag,
-    commonConfigSnippet: codexCommonConfigSnippet,
-    commonConfigError: codexCommonConfigError,
-    handleCommonConfigToggle: handleCodexCommonConfigToggle,
-    handleCommonConfigSnippetChange: handleCodexCommonConfigSnippetChange,
-    isExtracting: isCodexExtracting,
-    handleExtract: handleCodexExtract,
-  } = useCodexCommonConfig({
-    codexConfig,
-    onConfigChange: handleCodexConfigChange,
-    initialData: appId === "codex" ? initialData : undefined,
-    selectedPresetId: selectedPresetId ?? undefined,
-  });
-
   const {
     geminiEnv,
     geminiConfig,
@@ -428,7 +436,6 @@ export function ProviderForm({
     handleGeminiConfigChange,
     resetGeminiConfig,
     envStringToObj,
-    envObjToString,
   } = useGeminiConfigState({
     initialData: appId === "gemini" ? initialData : undefined,
   });
@@ -479,23 +486,6 @@ export function ProviderForm({
     [originalHandleGeminiModelChange, updateGeminiEnvField],
   );
 
-  const {
-    useCommonConfig: useGeminiCommonConfigFlag,
-    commonConfigSnippet: geminiCommonConfigSnippet,
-    commonConfigError: geminiCommonConfigError,
-    handleCommonConfigToggle: handleGeminiCommonConfigToggle,
-    handleCommonConfigSnippetChange: handleGeminiCommonConfigSnippetChange,
-    isExtracting: isGeminiExtracting,
-    handleExtract: handleGeminiExtract,
-  } = useGeminiCommonConfig({
-    envValue: geminiEnv,
-    onEnvChange: handleGeminiEnvChange,
-    envStringToObj,
-    envObjToString,
-    initialData: appId === "gemini" ? initialData : undefined,
-    selectedPresetId: selectedPresetId ?? undefined,
-  });
-
   // ── Extracted hooks: OpenCode / OMO / OpenClaw ─────────────────────
 
   const {
@@ -535,8 +525,6 @@ export function ProviderForm({
     getSettingsConfig: () => form.getValues("settingsConfig"),
   });
 
-  const [isCommonConfigModalOpen, setIsCommonConfigModalOpen] = useState(false);
-
   const handleSubmit = (values: ProviderFormData) => {
     if (appId === "claude" && templateValueEntries.length > 0) {
       const validation = validateTemplateValues();
@@ -829,6 +817,10 @@ export function ProviderForm({
         appId === "claude" && category !== "official"
           ? localApiFormat
           : undefined,
+      apiKeyField:
+        appId === "claude" && category !== "official"
+          ? localApiKeyField
+          : undefined,
     };
 
     onSubmit(payload);
@@ -1066,6 +1058,12 @@ export function ProviderForm({
       setLocalApiFormat("anthropic");
     }
 
+    if (preset.apiKeyField) {
+      setLocalApiKeyField(preset.apiKeyField);
+    } else {
+      setLocalApiKeyField("ANTHROPIC_AUTH_TOKEN");
+    }
+
     form.reset({
       name: preset.name,
       websiteUrl: preset.websiteUrl ?? "",
@@ -1270,6 +1268,8 @@ export function ProviderForm({
             speedTestEndpoints={speedTestEndpoints}
             apiFormat={localApiFormat}
             onApiFormatChange={handleApiFormatChange}
+            apiKeyField={localApiKeyField}
+            onApiKeyFieldChange={handleApiKeyFieldChange}
           />
         )}
 
@@ -1396,15 +1396,8 @@ export function ProviderForm({
               configValue={codexConfig}
               onAuthChange={setCodexAuth}
               onConfigChange={handleCodexConfigChange}
-              useCommonConfig={useCodexCommonConfigFlag}
-              onCommonConfigToggle={handleCodexCommonConfigToggle}
-              commonConfigSnippet={codexCommonConfigSnippet}
-              onCommonConfigSnippetChange={handleCodexCommonConfigSnippetChange}
-              commonConfigError={codexCommonConfigError}
               authError={codexAuthError}
               configError={codexConfigError}
-              onExtract={handleCodexExtract}
-              isExtracting={isCodexExtracting}
             />
             {settingsConfigErrorField}
           </>
@@ -1415,17 +1408,8 @@ export function ProviderForm({
               configValue={geminiConfig}
               onEnvChange={handleGeminiEnvChange}
               onConfigChange={handleGeminiConfigChange}
-              useCommonConfig={useGeminiCommonConfigFlag}
-              onCommonConfigToggle={handleGeminiCommonConfigToggle}
-              commonConfigSnippet={geminiCommonConfigSnippet}
-              onCommonConfigSnippetChange={
-                handleGeminiCommonConfigSnippetChange
-              }
-              commonConfigError={geminiCommonConfigError}
               envError={envError}
               configError={geminiConfigError}
-              onExtract={handleGeminiExtract}
-              isExtracting={isGeminiExtracting}
             />
             {settingsConfigErrorField}
           </>
@@ -1499,20 +1483,42 @@ export function ProviderForm({
           </>
         ) : (
           <>
-            <CommonConfigEditor
-              value={form.getValues("settingsConfig")}
-              onChange={(value) => form.setValue("settingsConfig", value)}
-              useCommonConfig={useCommonConfig}
-              onCommonConfigToggle={handleCommonConfigToggle}
-              commonConfigSnippet={commonConfigSnippet}
-              onCommonConfigSnippetChange={handleCommonConfigSnippetChange}
-              commonConfigError={commonConfigError}
-              onEditClick={() => setIsCommonConfigModalOpen(true)}
-              isModalOpen={isCommonConfigModalOpen}
-              onModalClose={() => setIsCommonConfigModalOpen(false)}
-              onExtract={handleClaudeExtract}
-              isExtracting={isClaudeExtracting}
-            />
+            <div className="space-y-2">
+              <Label htmlFor="settingsConfig">
+                {t("claudeConfig.configLabel")}
+              </Label>
+              <ClaudeQuickToggles
+                onPatchApplied={(patch) => {
+                  try {
+                    const cfg = JSON.parse(
+                      form.getValues("settingsConfig") || "{}",
+                    );
+                    jsonMergePatch(cfg, patch);
+                    form.setValue(
+                      "settingsConfig",
+                      JSON.stringify(cfg, null, 2),
+                    );
+                  } catch {
+                    // invalid JSON in editor — skip mirror
+                  }
+                }}
+              />
+              <JsonEditor
+                value={form.watch("settingsConfig")}
+                onChange={(value) => form.setValue("settingsConfig", value)}
+                placeholder={`{
+  "env": {
+    "ANTHROPIC_AUTH_TOKEN": "your-api-key-here"
+  }
+}`}
+                rows={14}
+                showValidation={true}
+                language="json"
+              />
+              <p className="text-xs text-muted-foreground">
+                {t("claudeConfig.fullSettingsHint")}
+              </p>
+            </div>
             {settingsConfigErrorField}
           </>
         )}
diff --git a/src/components/providers/forms/hooks/index.ts b/src/components/providers/forms/hooks/index.ts
index 760904339..10f374106 100644
--- a/src/components/providers/forms/hooks/index.ts
+++ b/src/components/providers/forms/hooks/index.ts
@@ -6,12 +6,9 @@ export { useCodexConfigState } from "./useCodexConfigState";
 export { useApiKeyLink } from "./useApiKeyLink";
 export { useCustomEndpoints } from "./useCustomEndpoints";
 export { useTemplateValues } from "./useTemplateValues";
-export { useCommonConfigSnippet } from "./useCommonConfigSnippet";
-export { useCodexCommonConfig } from "./useCodexCommonConfig";
 export { useSpeedTestEndpoints } from "./useSpeedTestEndpoints";
 export { useCodexTomlValidation } from "./useCodexTomlValidation";
 export { useGeminiConfigState } from "./useGeminiConfigState";
-export { useGeminiCommonConfig } from "./useGeminiCommonConfig";
 export { useOmoModelSource } from "./useOmoModelSource";
 export { useOpencodeFormState } from "./useOpencodeFormState";
 export { useOmoDraftState } from "./useOmoDraftState";
diff --git a/src/components/providers/forms/hooks/useApiKeyState.ts b/src/components/providers/forms/hooks/useApiKeyState.ts
index 9101d2e35..8b4c87626 100644
--- a/src/components/providers/forms/hooks/useApiKeyState.ts
+++ b/src/components/providers/forms/hooks/useApiKeyState.ts
@@ -12,6 +12,7 @@ interface UseApiKeyStateProps {
   selectedPresetId: string | null;
   category?: ProviderCategory;
   appType?: string;
+  apiKeyField?: string;
 }
 
 /**
@@ -24,6 +25,7 @@ export function useApiKeyState({
   selectedPresetId,
   category,
   appType,
+  apiKeyField,
 }: UseApiKeyStateProps) {
   const [apiKey, setApiKey] = useState(() => {
     if (initialConfig) {
@@ -58,7 +60,7 @@ export function useApiKeyState({
         initialConfig || "{}",
         key.trim(),
         {
-          // 最佳实践：仅在“新增模式”且“非官方类别”时补齐缺失字段
+          // 最佳实践：仅在"新增模式"且"非官方类别"时补齐缺失字段
           // - 新增模式：selectedPresetId !== null
           // - 非官方类别：category !== undefined && category !== "official"
           // - 官方类别：不创建字段（UI 也会禁用输入框）
@@ -68,12 +70,20 @@ export function useApiKeyState({
             category !== undefined &&
             category !== "official",
           appType,
+          apiKeyField,
         },
       );
 
       onConfigChange(configString);
     },
-    [initialConfig, selectedPresetId, category, appType, onConfigChange],
+    [
+      initialConfig,
+      selectedPresetId,
+      category,
+      appType,
+      apiKeyField,
+      onConfigChange,
+    ],
   );
 
   const showApiKey = useCallback(
diff --git a/src/components/providers/forms/hooks/useCodexCommonConfig.ts b/src/components/providers/forms/hooks/useCodexCommonConfig.ts
deleted file mode 100644
index b209003ed..000000000
--- a/src/components/providers/forms/hooks/useCodexCommonConfig.ts
+++ /dev/null
@@ -1,308 +0,0 @@
-import { useState, useEffect, useCallback, useRef } from "react";
-import { useTranslation } from "react-i18next";
-import {
-  updateTomlCommonConfigSnippet,
-  hasTomlCommonConfigSnippet,
-} from "@/utils/providerConfigUtils";
-import { configApi } from "@/lib/api";
-
-const LEGACY_STORAGE_KEY = "cc-switch:codex-common-config-snippet";
-const DEFAULT_CODEX_COMMON_CONFIG_SNIPPET = `# Common Codex config
-# Add your common TOML configuration here`;
-
-interface UseCodexCommonConfigProps {
-  codexConfig: string;
-  onConfigChange: (config: string) => void;
-  initialData?: {
-    settingsConfig?: Record<string, unknown>;
-  };
-  selectedPresetId?: string;
-}
-
-/**
- * 管理 Codex 通用配置片段 (TOML 格式)
- * 从 config.json 读取和保存，支持从 localStorage 平滑迁移
- */
-export function useCodexCommonConfig({
-  codexConfig,
-  onConfigChange,
-  initialData,
-  selectedPresetId,
-}: UseCodexCommonConfigProps) {
-  const { t } = useTranslation();
-  const [useCommonConfig, setUseCommonConfig] = useState(false);
-  const [commonConfigSnippet, setCommonConfigSnippetState] = useState<string>(
-    DEFAULT_CODEX_COMMON_CONFIG_SNIPPET,
-  );
-  const [commonConfigError, setCommonConfigError] = useState("");
-  const [isLoading, setIsLoading] = useState(true);
-  const [isExtracting, setIsExtracting] = useState(false);
-
-  // 用于跟踪是否正在通过通用配置更新
-  const isUpdatingFromCommonConfig = useRef(false);
-  // 用于跟踪新建模式是否已初始化默认勾选
-  const hasInitializedNewMode = useRef(false);
-
-  // 当预设变化时，重置初始化标记，使新预设能够重新触发初始化逻辑
-  useEffect(() => {
-    hasInitializedNewMode.current = false;
-  }, [selectedPresetId]);
-
-  // 初始化：从 config.json 加载，支持从 localStorage 迁移
-  useEffect(() => {
-    let mounted = true;
-
-    const loadSnippet = async () => {
-      try {
-        // 使用统一 API 加载
-        const snippet = await configApi.getCommonConfigSnippet("codex");
-
-        if (snippet && snippet.trim()) {
-          if (mounted) {
-            setCommonConfigSnippetState(snippet);
-          }
-        } else {
-          // 如果 config.json 中没有，尝试从 localStorage 迁移
-          if (typeof window !== "undefined") {
-            try {
-              const legacySnippet =
-                window.localStorage.getItem(LEGACY_STORAGE_KEY);
-              if (legacySnippet && legacySnippet.trim()) {
-                // 迁移到 config.json
-                await configApi.setCommonConfigSnippet("codex", legacySnippet);
-                if (mounted) {
-                  setCommonConfigSnippetState(legacySnippet);
-                }
-                // 清理 localStorage
-                window.localStorage.removeItem(LEGACY_STORAGE_KEY);
-                console.log(
-                  "[迁移] Codex 通用配置已从 localStorage 迁移到 config.json",
-                );
-              }
-            } catch (e) {
-              console.warn("[迁移] 从 localStorage 迁移失败:", e);
-            }
-          }
-        }
-      } catch (error) {
-        console.error("加载 Codex 通用配置失败:", error);
-      } finally {
-        if (mounted) {
-          setIsLoading(false);
-        }
-      }
-    };
-
-    loadSnippet();
-
-    return () => {
-      mounted = false;
-    };
-  }, []);
-
-  // 初始化时检查通用配置片段（编辑模式）
-  useEffect(() => {
-    if (initialData?.settingsConfig && !isLoading) {
-      const config =
-        typeof initialData.settingsConfig.config === "string"
-          ? initialData.settingsConfig.config
-          : "";
-      const hasCommon = hasTomlCommonConfigSnippet(config, commonConfigSnippet);
-      setUseCommonConfig(hasCommon);
-    }
-  }, [initialData, commonConfigSnippet, isLoading]);
-
-  // 新建模式：如果通用配置片段存在且有效，默认启用
-  useEffect(() => {
-    // 仅新建模式、加载完成、尚未初始化过
-    if (!initialData && !isLoading && !hasInitializedNewMode.current) {
-      hasInitializedNewMode.current = true;
-
-      // 检查 TOML 片段是否有实质内容（不只是注释和空行）
-      const lines = commonConfigSnippet.split("\n");
-      const hasContent = lines.some((line) => {
-        const trimmed = line.trim();
-        return trimmed && !trimmed.startsWith("#");
-      });
-
-      if (hasContent) {
-        setUseCommonConfig(true);
-        // 合并通用配置到当前配置
-        const { updatedConfig, error } = updateTomlCommonConfigSnippet(
-          codexConfig,
-          commonConfigSnippet,
-          true,
-        );
-        if (!error) {
-          isUpdatingFromCommonConfig.current = true;
-          onConfigChange(updatedConfig);
-          setTimeout(() => {
-            isUpdatingFromCommonConfig.current = false;
-          }, 0);
-        }
-      }
-    }
-  }, [
-    initialData,
-    commonConfigSnippet,
-    isLoading,
-    codexConfig,
-    onConfigChange,
-  ]);
-
-  // 处理通用配置开关
-  const handleCommonConfigToggle = useCallback(
-    (checked: boolean) => {
-      const { updatedConfig, error: snippetError } =
-        updateTomlCommonConfigSnippet(
-          codexConfig,
-          commonConfigSnippet,
-          checked,
-        );
-
-      if (snippetError) {
-        setCommonConfigError(snippetError);
-        setUseCommonConfig(false);
-        return;
-      }
-
-      setCommonConfigError("");
-      setUseCommonConfig(checked);
-      // 标记正在通过通用配置更新
-      isUpdatingFromCommonConfig.current = true;
-      onConfigChange(updatedConfig);
-      // 在下一个事件循环中重置标记
-      setTimeout(() => {
-        isUpdatingFromCommonConfig.current = false;
-      }, 0);
-    },
-    [codexConfig, commonConfigSnippet, onConfigChange],
-  );
-
-  // 处理通用配置片段变化
-  const handleCommonConfigSnippetChange = useCallback(
-    (value: string) => {
-      const previousSnippet = commonConfigSnippet;
-      setCommonConfigSnippetState(value);
-
-      if (!value.trim()) {
-        setCommonConfigError("");
-        // 保存到 config.json（清空）
-        configApi.setCommonConfigSnippet("codex", "").catch((error) => {
-          console.error("保存 Codex 通用配置失败:", error);
-          setCommonConfigError(
-            t("codexConfig.saveFailed", { error: String(error) }),
-          );
-        });
-
-        if (useCommonConfig) {
-          const { updatedConfig } = updateTomlCommonConfigSnippet(
-            codexConfig,
-            previousSnippet,
-            false,
-          );
-          onConfigChange(updatedConfig);
-          setUseCommonConfig(false);
-        }
-        return;
-      }
-
-      // TOML 格式校验较为复杂，暂时不做校验，直接清空错误
-      setCommonConfigError("");
-      // 保存到 config.json
-      configApi.setCommonConfigSnippet("codex", value).catch((error) => {
-        console.error("保存 Codex 通用配置失败:", error);
-        setCommonConfigError(
-          t("codexConfig.saveFailed", { error: String(error) }),
-        );
-      });
-
-      // 若当前启用通用配置，需要替换为最新片段
-      if (useCommonConfig) {
-        const removeResult = updateTomlCommonConfigSnippet(
-          codexConfig,
-          previousSnippet,
-          false,
-        );
-        if (removeResult.error) {
-          setCommonConfigError(removeResult.error);
-          return;
-        }
-        const addResult = updateTomlCommonConfigSnippet(
-          removeResult.updatedConfig,
-          value,
-          true,
-        );
-
-        if (addResult.error) {
-          setCommonConfigError(addResult.error);
-          return;
-        }
-
-        // 标记正在通过通用配置更新，避免触发状态检查
-        isUpdatingFromCommonConfig.current = true;
-        onConfigChange(addResult.updatedConfig);
-        // 在下一个事件循环中重置标记
-        setTimeout(() => {
-          isUpdatingFromCommonConfig.current = false;
-        }, 0);
-      }
-    },
-    [commonConfigSnippet, codexConfig, useCommonConfig, onConfigChange],
-  );
-
-  // 当配置变化时检查是否包含通用配置（但避免在通过通用配置更新时检查）
-  useEffect(() => {
-    if (isUpdatingFromCommonConfig.current || isLoading) {
-      return;
-    }
-    const hasCommon = hasTomlCommonConfigSnippet(
-      codexConfig,
-      commonConfigSnippet,
-    );
-    setUseCommonConfig(hasCommon);
-  }, [codexConfig, commonConfigSnippet, isLoading]);
-
-  // 从编辑器当前内容提取通用配置片段
-  const handleExtract = useCallback(async () => {
-    setIsExtracting(true);
-    setCommonConfigError("");
-
-    try {
-      const extracted = await configApi.extractCommonConfigSnippet("codex", {
-        settingsConfig: JSON.stringify({
-          config: codexConfig ?? "",
-        }),
-      });
-
-      if (!extracted || !extracted.trim()) {
-        setCommonConfigError(t("codexConfig.extractNoCommonConfig"));
-        return;
-      }
-
-      // 更新片段状态
-      setCommonConfigSnippetState(extracted);
-
-      // 保存到后端
-      await configApi.setCommonConfigSnippet("codex", extracted);
-    } catch (error) {
-      console.error("提取 Codex 通用配置失败:", error);
-      setCommonConfigError(
-        t("codexConfig.extractFailed", { error: String(error) }),
-      );
-    } finally {
-      setIsExtracting(false);
-    }
-  }, [codexConfig, t]);
-
-  return {
-    useCommonConfig,
-    commonConfigSnippet,
-    commonConfigError,
-    isLoading,
-    isExtracting,
-    handleCommonConfigToggle,
-    handleCommonConfigSnippetChange,
-    handleExtract,
-  };
-}
diff --git a/src/components/providers/forms/hooks/useCommonConfigSnippet.ts b/src/components/providers/forms/hooks/useCommonConfigSnippet.ts
deleted file mode 100644
index 2f5114572..000000000
--- a/src/components/providers/forms/hooks/useCommonConfigSnippet.ts
+++ /dev/null
@@ -1,331 +0,0 @@
-import { useState, useEffect, useCallback, useRef } from "react";
-import { useTranslation } from "react-i18next";
-import {
-  updateCommonConfigSnippet,
-  hasCommonConfigSnippet,
-  validateJsonConfig,
-} from "@/utils/providerConfigUtils";
-import { configApi } from "@/lib/api";
-
-const LEGACY_STORAGE_KEY = "cc-switch:common-config-snippet";
-const DEFAULT_COMMON_CONFIG_SNIPPET = `{
-  "includeCoAuthoredBy": false
-}`;
-
-interface UseCommonConfigSnippetProps {
-  settingsConfig: string;
-  onConfigChange: (config: string) => void;
-  initialData?: {
-    settingsConfig?: Record<string, unknown>;
-  };
-  selectedPresetId?: string;
-  /** When false, the hook skips all logic and returns disabled state. Default: true */
-  enabled?: boolean;
-}
-
-/**
- * 管理 Claude 通用配置片段
- * 从 config.json 读取和保存，支持从 localStorage 平滑迁移
- */
-export function useCommonConfigSnippet({
-  settingsConfig,
-  onConfigChange,
-  initialData,
-  selectedPresetId,
-  enabled = true,
-}: UseCommonConfigSnippetProps) {
-  const { t } = useTranslation();
-  const [useCommonConfig, setUseCommonConfig] = useState(false);
-  const [commonConfigSnippet, setCommonConfigSnippetState] = useState<string>(
-    DEFAULT_COMMON_CONFIG_SNIPPET,
-  );
-  const [commonConfigError, setCommonConfigError] = useState("");
-  const [isLoading, setIsLoading] = useState(true);
-  const [isExtracting, setIsExtracting] = useState(false);
-
-  // 用于跟踪是否正在通过通用配置更新
-  const isUpdatingFromCommonConfig = useRef(false);
-  // 用于跟踪新建模式是否已初始化默认勾选
-  const hasInitializedNewMode = useRef(false);
-
-  // 当预设变化时，重置初始化标记，使新预设能够重新触发初始化逻辑
-  useEffect(() => {
-    if (!enabled) return;
-    hasInitializedNewMode.current = false;
-  }, [selectedPresetId, enabled]);
-
-  // 初始化：从 config.json 加载，支持从 localStorage 迁移
-  useEffect(() => {
-    if (!enabled) {
-      setIsLoading(false);
-      return;
-    }
-    let mounted = true;
-
-    const loadSnippet = async () => {
-      try {
-        // 使用统一 API 加载
-        const snippet = await configApi.getCommonConfigSnippet("claude");
-
-        if (snippet && snippet.trim()) {
-          if (mounted) {
-            setCommonConfigSnippetState(snippet);
-          }
-        } else {
-          // 如果 config.json 中没有，尝试从 localStorage 迁移
-          if (typeof window !== "undefined") {
-            try {
-              const legacySnippet =
-                window.localStorage.getItem(LEGACY_STORAGE_KEY);
-              if (legacySnippet && legacySnippet.trim()) {
-                // 迁移到 config.json
-                await configApi.setCommonConfigSnippet("claude", legacySnippet);
-                if (mounted) {
-                  setCommonConfigSnippetState(legacySnippet);
-                }
-                // 清理 localStorage
-                window.localStorage.removeItem(LEGACY_STORAGE_KEY);
-                console.log(
-                  "[迁移] Claude 通用配置已从 localStorage 迁移到 config.json",
-                );
-              }
-            } catch (e) {
-              console.warn("[迁移] 从 localStorage 迁移失败:", e);
-            }
-          }
-        }
-      } catch (error) {
-        console.error("加载通用配置失败:", error);
-      } finally {
-        if (mounted) {
-          setIsLoading(false);
-        }
-      }
-    };
-
-    loadSnippet();
-
-    return () => {
-      mounted = false;
-    };
-  }, [enabled]);
-
-  // 初始化时检查通用配置片段（编辑模式）
-  useEffect(() => {
-    if (!enabled) return;
-    if (initialData && !isLoading) {
-      const configString = JSON.stringify(initialData.settingsConfig, null, 2);
-      const hasCommon = hasCommonConfigSnippet(
-        configString,
-        commonConfigSnippet,
-      );
-      setUseCommonConfig(hasCommon);
-    }
-  }, [enabled, initialData, commonConfigSnippet, isLoading]);
-
-  // 新建模式：如果通用配置片段存在且有效，默认启用
-  useEffect(() => {
-    if (!enabled) return;
-    // 仅新建模式、加载完成、尚未初始化过
-    if (!initialData && !isLoading && !hasInitializedNewMode.current) {
-      hasInitializedNewMode.current = true;
-
-      // 检查片段是否有实质内容
-      try {
-        const snippetObj = JSON.parse(commonConfigSnippet);
-        const hasContent = Object.keys(snippetObj).length > 0;
-        if (hasContent) {
-          setUseCommonConfig(true);
-          // 合并通用配置到当前配置
-          const { updatedConfig, error } = updateCommonConfigSnippet(
-            settingsConfig,
-            commonConfigSnippet,
-            true,
-          );
-          if (!error) {
-            isUpdatingFromCommonConfig.current = true;
-            onConfigChange(updatedConfig);
-            setTimeout(() => {
-              isUpdatingFromCommonConfig.current = false;
-            }, 0);
-          }
-        }
-      } catch {
-        // ignore parse error
-      }
-    }
-  }, [
-    enabled,
-    initialData,
-    commonConfigSnippet,
-    isLoading,
-    settingsConfig,
-    onConfigChange,
-  ]);
-
-  // 处理通用配置开关
-  const handleCommonConfigToggle = useCallback(
-    (checked: boolean) => {
-      const { updatedConfig, error: snippetError } = updateCommonConfigSnippet(
-        settingsConfig,
-        commonConfigSnippet,
-        checked,
-      );
-
-      if (snippetError) {
-        setCommonConfigError(snippetError);
-        setUseCommonConfig(false);
-        return;
-      }
-
-      setCommonConfigError("");
-      setUseCommonConfig(checked);
-      // 标记正在通过通用配置更新
-      isUpdatingFromCommonConfig.current = true;
-      onConfigChange(updatedConfig);
-      // 在下一个事件循环中重置标记
-      setTimeout(() => {
-        isUpdatingFromCommonConfig.current = false;
-      }, 0);
-    },
-    [settingsConfig, commonConfigSnippet, onConfigChange],
-  );
-
-  // 处理通用配置片段变化
-  const handleCommonConfigSnippetChange = useCallback(
-    (value: string) => {
-      const previousSnippet = commonConfigSnippet;
-      setCommonConfigSnippetState(value);
-
-      if (!value.trim()) {
-        setCommonConfigError("");
-        // 保存到 config.json（清空）
-        configApi.setCommonConfigSnippet("claude", "").catch((error) => {
-          console.error("保存通用配置失败:", error);
-          setCommonConfigError(
-            t("claudeConfig.saveFailed", { error: String(error) }),
-          );
-        });
-
-        if (useCommonConfig) {
-          const { updatedConfig } = updateCommonConfigSnippet(
-            settingsConfig,
-            previousSnippet,
-            false,
-          );
-          onConfigChange(updatedConfig);
-          setUseCommonConfig(false);
-        }
-        return;
-      }
-
-      // 验证JSON格式
-      const validationError = validateJsonConfig(value, "通用配置片段");
-      if (validationError) {
-        setCommonConfigError(validationError);
-      } else {
-        setCommonConfigError("");
-        // 保存到 config.json
-        configApi.setCommonConfigSnippet("claude", value).catch((error) => {
-          console.error("保存通用配置失败:", error);
-          setCommonConfigError(
-            t("claudeConfig.saveFailed", { error: String(error) }),
-          );
-        });
-      }
-
-      // 若当前启用通用配置且格式正确，需要替换为最新片段
-      if (useCommonConfig && !validationError) {
-        const removeResult = updateCommonConfigSnippet(
-          settingsConfig,
-          previousSnippet,
-          false,
-        );
-        if (removeResult.error) {
-          setCommonConfigError(removeResult.error);
-          return;
-        }
-        const addResult = updateCommonConfigSnippet(
-          removeResult.updatedConfig,
-          value,
-          true,
-        );
-
-        if (addResult.error) {
-          setCommonConfigError(addResult.error);
-          return;
-        }
-
-        // 标记正在通过通用配置更新，避免触发状态检查
-        isUpdatingFromCommonConfig.current = true;
-        onConfigChange(addResult.updatedConfig);
-        // 在下一个事件循环中重置标记
-        setTimeout(() => {
-          isUpdatingFromCommonConfig.current = false;
-        }, 0);
-      }
-    },
-    [commonConfigSnippet, settingsConfig, useCommonConfig, onConfigChange],
-  );
-
-  // 当配置变化时检查是否包含通用配置（但避免在通过通用配置更新时检查）
-  useEffect(() => {
-    if (!enabled) return;
-    if (isUpdatingFromCommonConfig.current || isLoading) {
-      return;
-    }
-    const hasCommon = hasCommonConfigSnippet(
-      settingsConfig,
-      commonConfigSnippet,
-    );
-    setUseCommonConfig(hasCommon);
-  }, [enabled, settingsConfig, commonConfigSnippet, isLoading]);
-
-  // 从编辑器当前内容提取通用配置片段
-  const handleExtract = useCallback(async () => {
-    setIsExtracting(true);
-    setCommonConfigError("");
-
-    try {
-      const extracted = await configApi.extractCommonConfigSnippet("claude", {
-        settingsConfig,
-      });
-
-      if (!extracted || extracted === "{}") {
-        setCommonConfigError(t("claudeConfig.extractNoCommonConfig"));
-        return;
-      }
-
-      // 验证 JSON 格式
-      const validationError = validateJsonConfig(extracted, "提取的配置");
-      if (validationError) {
-        setCommonConfigError(validationError);
-        return;
-      }
-
-      // 更新片段状态
-      setCommonConfigSnippetState(extracted);
-
-      // 保存到后端
-      await configApi.setCommonConfigSnippet("claude", extracted);
-    } catch (error) {
-      console.error("提取通用配置失败:", error);
-      setCommonConfigError(
-        t("claudeConfig.extractFailed", { error: String(error) }),
-      );
-    } finally {
-      setIsExtracting(false);
-    }
-  }, [settingsConfig, t]);
-
-  return {
-    useCommonConfig,
-    commonConfigSnippet,
-    commonConfigError,
-    isLoading,
-    isExtracting,
-    handleCommonConfigToggle,
-    handleCommonConfigSnippetChange,
-    handleExtract,
-  };
-}
diff --git a/src/components/providers/forms/hooks/useGeminiCommonConfig.ts b/src/components/providers/forms/hooks/useGeminiCommonConfig.ts
deleted file mode 100644
index 4627afd8b..000000000
--- a/src/components/providers/forms/hooks/useGeminiCommonConfig.ts
+++ /dev/null
@@ -1,465 +0,0 @@
-import { useState, useEffect, useCallback, useRef } from "react";
-import { useTranslation } from "react-i18next";
-import { configApi } from "@/lib/api";
-
-const LEGACY_STORAGE_KEY = "cc-switch:gemini-common-config-snippet";
-const DEFAULT_GEMINI_COMMON_CONFIG_SNIPPET = "{}";
-
-const GEMINI_COMMON_ENV_FORBIDDEN_KEYS = [
-  "GOOGLE_GEMINI_BASE_URL",
-  "GEMINI_API_KEY",
-] as const;
-type GeminiForbiddenEnvKey = (typeof GEMINI_COMMON_ENV_FORBIDDEN_KEYS)[number];
-
-interface UseGeminiCommonConfigProps {
-  envValue: string;
-  onEnvChange: (env: string) => void;
-  envStringToObj: (envString: string) => Record<string, string>;
-  envObjToString: (envObj: Record<string, unknown>) => string;
-  initialData?: {
-    settingsConfig?: Record<string, unknown>;
-  };
-  selectedPresetId?: string;
-}
-
-function isPlainObject(value: unknown): value is Record<string, unknown> {
-  return (
-    typeof value === "object" &&
-    value !== null &&
-    !Array.isArray(value) &&
-    Object.prototype.toString.call(value) === "[object Object]"
-  );
-}
-
-/**
- * 管理 Gemini 通用配置片段 (JSON 格式)
- * 写入 Gemini 的 .env，但会排除以下敏感字段：
- * - GOOGLE_GEMINI_BASE_URL
- * - GEMINI_API_KEY
- */
-export function useGeminiCommonConfig({
-  envValue,
-  onEnvChange,
-  envStringToObj,
-  envObjToString,
-  initialData,
-  selectedPresetId,
-}: UseGeminiCommonConfigProps) {
-  const { t } = useTranslation();
-  const [useCommonConfig, setUseCommonConfig] = useState(false);
-  const [commonConfigSnippet, setCommonConfigSnippetState] = useState<string>(
-    DEFAULT_GEMINI_COMMON_CONFIG_SNIPPET,
-  );
-  const [commonConfigError, setCommonConfigError] = useState("");
-  const [isLoading, setIsLoading] = useState(true);
-  const [isExtracting, setIsExtracting] = useState(false);
-
-  // 用于跟踪是否正在通过通用配置更新
-  const isUpdatingFromCommonConfig = useRef(false);
-  // 用于跟踪新建模式是否已初始化默认勾选
-  const hasInitializedNewMode = useRef(false);
-
-  // 当预设变化时，重置初始化标记，使新预设能够重新触发初始化逻辑
-  useEffect(() => {
-    hasInitializedNewMode.current = false;
-  }, [selectedPresetId]);
-
-  const parseSnippetEnv = useCallback(
-    (
-      snippetString: string,
-    ): { env: Record<string, string>; error?: string } => {
-      const trimmed = snippetString.trim();
-      if (!trimmed) {
-        return { env: {} };
-      }
-
-      let parsed: unknown;
-      try {
-        parsed = JSON.parse(trimmed);
-      } catch {
-        return { env: {}, error: t("geminiConfig.invalidJsonFormat") };
-      }
-
-      if (!isPlainObject(parsed)) {
-        return { env: {}, error: t("geminiConfig.invalidJsonFormat") };
-      }
-
-      const keys = Object.keys(parsed);
-      const forbiddenKeys = keys.filter((key) =>
-        GEMINI_COMMON_ENV_FORBIDDEN_KEYS.includes(key as GeminiForbiddenEnvKey),
-      );
-      if (forbiddenKeys.length > 0) {
-        return {
-          env: {},
-          error: t("geminiConfig.commonConfigInvalidKeys", {
-            keys: forbiddenKeys.join(", "),
-          }),
-        };
-      }
-
-      const env: Record<string, string> = {};
-      for (const [key, value] of Object.entries(parsed)) {
-        if (typeof value !== "string") {
-          return {
-            env: {},
-            error: t("geminiConfig.commonConfigInvalidValues"),
-          };
-        }
-        const normalized = value.trim();
-        if (!normalized) continue;
-        env[key] = normalized;
-      }
-
-      return { env };
-    },
-    [t],
-  );
-
-  const hasEnvCommonConfigSnippet = useCallback(
-    (envObj: Record<string, string>, snippetEnv: Record<string, string>) => {
-      const entries = Object.entries(snippetEnv);
-      if (entries.length === 0) return false;
-      return entries.every(([key, value]) => envObj[key] === value);
-    },
-    [],
-  );
-
-  const applySnippetToEnv = useCallback(
-    (envObj: Record<string, string>, snippetEnv: Record<string, string>) => {
-      const updated = { ...envObj };
-      for (const [key, value] of Object.entries(snippetEnv)) {
-        if (typeof value === "string") {
-          updated[key] = value;
-        }
-      }
-      return updated;
-    },
-    [],
-  );
-
-  const removeSnippetFromEnv = useCallback(
-    (envObj: Record<string, string>, snippetEnv: Record<string, string>) => {
-      const updated = { ...envObj };
-      for (const [key, value] of Object.entries(snippetEnv)) {
-        if (typeof value === "string" && updated[key] === value) {
-          delete updated[key];
-        }
-      }
-      return updated;
-    },
-    [],
-  );
-
-  // 初始化：从 config.json 加载，支持从 localStorage 迁移
-  useEffect(() => {
-    let mounted = true;
-
-    const loadSnippet = async () => {
-      try {
-        // 使用统一 API 加载
-        const snippet = await configApi.getCommonConfigSnippet("gemini");
-
-        if (snippet && snippet.trim()) {
-          if (mounted) {
-            setCommonConfigSnippetState(snippet);
-          }
-        } else {
-          // 如果 config.json 中没有，尝试从 localStorage 迁移
-          if (typeof window !== "undefined") {
-            try {
-              const legacySnippet =
-                window.localStorage.getItem(LEGACY_STORAGE_KEY);
-              if (legacySnippet && legacySnippet.trim()) {
-                const parsed = parseSnippetEnv(legacySnippet);
-                if (parsed.error) {
-                  console.warn(
-                    "[迁移] legacy Gemini 通用配置片段格式不符合当前规则，跳过迁移",
-                  );
-                  return;
-                }
-                // 迁移到 config.json
-                await configApi.setCommonConfigSnippet("gemini", legacySnippet);
-                if (mounted) {
-                  setCommonConfigSnippetState(legacySnippet);
-                }
-                // 清理 localStorage
-                window.localStorage.removeItem(LEGACY_STORAGE_KEY);
-                console.log(
-                  "[迁移] Gemini 通用配置已从 localStorage 迁移到 config.json",
-                );
-              }
-            } catch (e) {
-              console.warn("[迁移] 从 localStorage 迁移失败:", e);
-            }
-          }
-        }
-      } catch (error) {
-        console.error("加载 Gemini 通用配置失败:", error);
-      } finally {
-        if (mounted) {
-          setIsLoading(false);
-        }
-      }
-    };
-
-    loadSnippet();
-
-    return () => {
-      mounted = false;
-    };
-  }, [parseSnippetEnv]);
-
-  // 初始化时检查通用配置片段（编辑模式）
-  useEffect(() => {
-    if (initialData?.settingsConfig && !isLoading) {
-      try {
-        const env =
-          isPlainObject(initialData.settingsConfig.env) &&
-          Object.keys(initialData.settingsConfig.env).length > 0
-            ? (initialData.settingsConfig.env as Record<string, string>)
-            : {};
-        const parsed = parseSnippetEnv(commonConfigSnippet);
-        if (parsed.error) return;
-        const hasCommon = hasEnvCommonConfigSnippet(
-          env,
-          parsed.env as Record<string, string>,
-        );
-        setUseCommonConfig(hasCommon);
-      } catch {
-        // ignore parse error
-      }
-    }
-  }, [
-    commonConfigSnippet,
-    hasEnvCommonConfigSnippet,
-    initialData,
-    isLoading,
-    parseSnippetEnv,
-  ]);
-
-  // 新建模式：如果通用配置片段存在且有效，默认启用
-  useEffect(() => {
-    // 仅新建模式、加载完成、尚未初始化过
-    if (!initialData && !isLoading && !hasInitializedNewMode.current) {
-      hasInitializedNewMode.current = true;
-
-      const parsed = parseSnippetEnv(commonConfigSnippet);
-      if (parsed.error) return;
-      const hasContent = Object.keys(parsed.env).length > 0;
-      if (!hasContent) return;
-
-      setUseCommonConfig(true);
-      const currentEnv = envStringToObj(envValue);
-      const merged = applySnippetToEnv(currentEnv, parsed.env);
-      const nextEnvString = envObjToString(merged);
-
-      isUpdatingFromCommonConfig.current = true;
-      onEnvChange(nextEnvString);
-      setTimeout(() => {
-        isUpdatingFromCommonConfig.current = false;
-      }, 0);
-    }
-  }, [
-    initialData,
-    isLoading,
-    commonConfigSnippet,
-    envValue,
-    envStringToObj,
-    envObjToString,
-    applySnippetToEnv,
-    onEnvChange,
-    parseSnippetEnv,
-  ]);
-
-  // 处理通用配置开关
-  const handleCommonConfigToggle = useCallback(
-    (checked: boolean) => {
-      const parsed = parseSnippetEnv(commonConfigSnippet);
-      if (parsed.error) {
-        setCommonConfigError(parsed.error);
-        setUseCommonConfig(false);
-        return;
-      }
-      if (Object.keys(parsed.env).length === 0) {
-        setCommonConfigError(t("geminiConfig.noCommonConfigToApply"));
-        setUseCommonConfig(false);
-        return;
-      }
-
-      const currentEnv = envStringToObj(envValue);
-      const updatedEnvObj = checked
-        ? applySnippetToEnv(currentEnv, parsed.env)
-        : removeSnippetFromEnv(currentEnv, parsed.env);
-
-      setCommonConfigError("");
-      setUseCommonConfig(checked);
-
-      isUpdatingFromCommonConfig.current = true;
-      onEnvChange(envObjToString(updatedEnvObj));
-      setTimeout(() => {
-        isUpdatingFromCommonConfig.current = false;
-      }, 0);
-    },
-    [
-      applySnippetToEnv,
-      commonConfigSnippet,
-      envObjToString,
-      envStringToObj,
-      envValue,
-      onEnvChange,
-      parseSnippetEnv,
-      removeSnippetFromEnv,
-      t,
-    ],
-  );
-
-  // 处理通用配置片段变化
-  const handleCommonConfigSnippetChange = useCallback(
-    (value: string) => {
-      const previousSnippet = commonConfigSnippet;
-      setCommonConfigSnippetState(value);
-
-      if (!value.trim()) {
-        setCommonConfigError("");
-        // 保存到 config.json（清空）
-        configApi.setCommonConfigSnippet("gemini", "").catch((error) => {
-          console.error("保存 Gemini 通用配置失败:", error);
-          setCommonConfigError(
-            t("geminiConfig.saveFailed", { error: String(error) }),
-          );
-        });
-
-        if (useCommonConfig) {
-          const parsed = parseSnippetEnv(previousSnippet);
-          if (!parsed.error && Object.keys(parsed.env).length > 0) {
-            const currentEnv = envStringToObj(envValue);
-            const updatedEnv = removeSnippetFromEnv(currentEnv, parsed.env);
-            onEnvChange(envObjToString(updatedEnv));
-          }
-          setUseCommonConfig(false);
-        }
-        return;
-      }
-
-      // 校验 JSON 格式
-      const parsed = parseSnippetEnv(value);
-      if (parsed.error) {
-        setCommonConfigError(parsed.error);
-        return;
-      }
-
-      setCommonConfigError("");
-      configApi.setCommonConfigSnippet("gemini", value).catch((error) => {
-        console.error("保存 Gemini 通用配置失败:", error);
-        setCommonConfigError(
-          t("geminiConfig.saveFailed", { error: String(error) }),
-        );
-      });
-
-      // 若当前启用通用配置，需要替换为最新片段
-      if (useCommonConfig) {
-        const prevParsed = parseSnippetEnv(previousSnippet);
-        const prevEnv = prevParsed.error ? {} : prevParsed.env;
-        const nextEnv = parsed.env;
-        const currentEnv = envStringToObj(envValue);
-
-        const withoutOld =
-          Object.keys(prevEnv).length > 0
-            ? removeSnippetFromEnv(currentEnv, prevEnv)
-            : currentEnv;
-        const withNew =
-          Object.keys(nextEnv).length > 0
-            ? applySnippetToEnv(withoutOld, nextEnv)
-            : withoutOld;
-
-        isUpdatingFromCommonConfig.current = true;
-        onEnvChange(envObjToString(withNew));
-        setTimeout(() => {
-          isUpdatingFromCommonConfig.current = false;
-        }, 0);
-      }
-    },
-    [
-      applySnippetToEnv,
-      commonConfigSnippet,
-      envObjToString,
-      envStringToObj,
-      envValue,
-      onEnvChange,
-      parseSnippetEnv,
-      removeSnippetFromEnv,
-      t,
-      useCommonConfig,
-    ],
-  );
-
-  // 当 env 变化时检查是否包含通用配置（但避免在通过通用配置更新时检查）
-  useEffect(() => {
-    if (isUpdatingFromCommonConfig.current || isLoading) {
-      return;
-    }
-    const parsed = parseSnippetEnv(commonConfigSnippet);
-    if (parsed.error) return;
-    const envObj = envStringToObj(envValue);
-    setUseCommonConfig(
-      hasEnvCommonConfigSnippet(envObj, parsed.env as Record<string, string>),
-    );
-  }, [
-    envValue,
-    commonConfigSnippet,
-    envStringToObj,
-    hasEnvCommonConfigSnippet,
-    isLoading,
-    parseSnippetEnv,
-  ]);
-
-  // 从编辑器当前内容提取通用配置片段
-  const handleExtract = useCallback(async () => {
-    setIsExtracting(true);
-    setCommonConfigError("");
-
-    try {
-      const extracted = await configApi.extractCommonConfigSnippet("gemini", {
-        settingsConfig: JSON.stringify({
-          env: envStringToObj(envValue),
-        }),
-      });
-
-      if (!extracted || extracted === "{}") {
-        setCommonConfigError(t("geminiConfig.extractNoCommonConfig"));
-        return;
-      }
-
-      // 验证 JSON 格式
-      const parsed = parseSnippetEnv(extracted);
-      if (parsed.error) {
-        setCommonConfigError(t("geminiConfig.extractedConfigInvalid"));
-        return;
-      }
-
-      // 更新片段状态
-      setCommonConfigSnippetState(extracted);
-
-      // 保存到后端
-      await configApi.setCommonConfigSnippet("gemini", extracted);
-    } catch (error) {
-      console.error("提取 Gemini 通用配置失败:", error);
-      setCommonConfigError(
-        t("geminiConfig.extractFailed", { error: String(error) }),
-      );
-    } finally {
-      setIsExtracting(false);
-    }
-  }, [envStringToObj, envValue, parseSnippetEnv, t]);
-
-  return {
-    useCommonConfig,
-    commonConfigSnippet,
-    commonConfigError,
-    isLoading,
-    isExtracting,
-    handleCommonConfigToggle,
-    handleCommonConfigSnippetChange,
-    handleExtract,
-  };
-}
diff --git a/src/config/claudeProviderPresets.ts b/src/config/claudeProviderPresets.ts
index 52d03b50c..2815f6499 100644
--- a/src/config/claudeProviderPresets.ts
+++ b/src/config/claudeProviderPresets.ts
@@ -316,12 +316,10 @@ export const providerPresets: ProviderPreset[] = [
     name: "AiHubMix",
     websiteUrl: "https://aihubmix.com",
     apiKeyUrl: "https://aihubmix.com",
-    // 说明：该供应商使用 ANTHROPIC_API_KEY（而非 ANTHROPIC_AUTH_TOKEN）
-    apiKeyField: "ANTHROPIC_API_KEY",
     settingsConfig: {
       env: {
         ANTHROPIC_BASE_URL: "https://aihubmix.com",
-        ANTHROPIC_API_KEY: "",
+        ANTHROPIC_AUTH_TOKEN: "",
       },
     },
     // 请求地址候选（用于地址管理/测速），用户可自行选择/覆盖
diff --git a/src/i18n/locales/en.json b/src/i18n/locales/en.json
index 48833b75c..2602f0419 100644
--- a/src/i18n/locales/en.json
+++ b/src/i18n/locales/en.json
@@ -51,15 +51,7 @@
   },
   "claudeConfig": {
     "configLabel": "Claude Code settings.json (JSON) *",
-    "writeCommonConfig": "Write Common Config",
-    "editCommonConfig": "Edit Common Config",
-    "editCommonConfigTitle": "Edit Common Config Snippet",
-    "commonConfigHint": "This snippet will be merged into settings.json when 'Write Common Config' is checked",
     "fullSettingsHint": "Full Claude Code settings.json content",
-    "extractFromCurrent": "Extract from Editor",
-    "extractNoCommonConfig": "No common config available to extract from editor",
-    "extractFailed": "Extract failed: {{error}}",
-    "saveFailed": "Save failed: {{error}}",
     "hideAttribution": "Hide AI Attribution",
     "alwaysThinking": "Extended Thinking",
     "enableTeammates": "Teammates Mode"
@@ -125,11 +117,7 @@
     "notes": "Notes",
     "notesPlaceholder": "e.g., Company dedicated account",
     "configJson": "Config JSON",
-    "writeCommonConfig": "Write common config",
-    "editCommonConfigButton": "Edit common config",
     "configJsonHint": "Please fill in complete Claude Code configuration",
-    "editCommonConfigTitle": "Edit common config snippet",
-    "editCommonConfigHint": "Common config snippet will be merged into all providers that enable it",
     "addProvider": "Add Provider",
     "sortUpdated": "Sort order updated",
     "usageSaved": "Usage query configuration saved",
@@ -667,6 +655,10 @@
     "apiFormatHint": "Select the input format for the provider's API",
     "apiFormatAnthropic": "Anthropic Messages (Native)",
     "apiFormatOpenAIChat": "OpenAI Chat Completions (Requires proxy)",
+    "authField": "Auth Field",
+    "authFieldAuthToken": "Auth Token (Default)",
+    "authFieldApiKey": "API Key",
+    "authFieldHint": "Most third-party providers use Auth Token; a few require API Key",
     "anthropicDefaultHaikuModel": "Default Haiku Model",
     "anthropicDefaultSonnetModel": "Default Sonnet Model",
     "anthropicDefaultOpusModel": "Default Opus Model",
@@ -738,33 +730,15 @@
     "authJsonHint": "Codex auth.json configuration content",
     "configToml": "config.toml (TOML)",
     "configTomlHint": "Codex config.toml configuration content",
-    "writeCommonConfig": "Write Common Config",
-    "editCommonConfig": "Edit Common Config",
-    "editCommonConfigTitle": "Edit Codex Common Config Snippet",
-    "commonConfigHint": "This snippet will be appended to the end of config.toml when 'Write Common Config' is checked",
-    "apiUrlLabel": "API Request URL",
-    "extractFromCurrent": "Extract from Editor",
-    "extractNoCommonConfig": "No common config available to extract from editor",
-    "extractFailed": "Extract failed: {{error}}",
-    "saveFailed": "Save failed: {{error}}"
+    "apiUrlLabel": "API Request URL"
   },
   "geminiConfig": {
     "envFile": "Environment Variables (.env)",
     "envFileHint": "Configure Gemini environment variables in .env format",
     "configJson": "Configuration File (config.json)",
     "configJsonHint": "Configure Gemini extended parameters in JSON format (optional)",
-    "writeCommonConfig": "Write Common Config",
-    "editCommonConfig": "Edit Common Config",
-    "editCommonConfigTitle": "Edit Gemini Common Config Snippet",
-    "commonConfigHint": "This snippet writes to Gemini .env (GOOGLE_GEMINI_BASE_URL and GEMINI_API_KEY are not allowed)",
-    "extractFromCurrent": "Extract from Editor",
-    "extractNoCommonConfig": "No common config available to extract from editor",
-    "extractFailed": "Extract failed: {{error}}",
-    "saveFailed": "Save failed: {{error}}",
     "extractedConfigInvalid": "Extracted config format is invalid",
     "invalidJsonFormat": "Common config snippet format error (must be valid JSON)",
-    "commonConfigInvalidKeys": "Common config snippet must not include GOOGLE_GEMINI_BASE_URL or GEMINI_API_KEY (found: {{keys}})",
-    "commonConfigInvalidValues": "Common config snippet values must be strings",
     "noCommonConfigToApply": "Common config snippet is empty or has no applicable entries",
     "configMergeFailed": "Config merge failed: {{error}}",
     "configReplaceFailed": "Config replace failed: {{error}}"
diff --git a/src/i18n/locales/ja.json b/src/i18n/locales/ja.json
index 391142f12..f002b1aa2 100644
--- a/src/i18n/locales/ja.json
+++ b/src/i18n/locales/ja.json
@@ -51,15 +51,7 @@
   },
   "claudeConfig": {
     "configLabel": "Claude Code settings.json (JSON) *",
-    "writeCommonConfig": "共通設定を書き込む",
-    "editCommonConfig": "共通設定を編集",
-    "editCommonConfigTitle": "共通設定スニペットを編集",
-    "commonConfigHint": "「共通設定を書き込む」がオンのとき settings.json にマージされます",
     "fullSettingsHint": "Claude Code の settings.json 全文",
-    "extractFromCurrent": "編集内容から抽出",
-    "extractNoCommonConfig": "編集内容から抽出できる共通設定がありません",
-    "extractFailed": "抽出に失敗しました: {{error}}",
-    "saveFailed": "保存に失敗しました: {{error}}",
     "hideAttribution": "AI署名を非表示",
     "alwaysThinking": "拡張思考",
     "enableTeammates": "Teammates モード"
@@ -125,11 +117,7 @@
     "notes": "メモ",
     "notesPlaceholder": "例: 会社用アカウント",
     "configJson": "Config JSON",
-    "writeCommonConfig": "共通設定を書き込む",
-    "editCommonConfigButton": "共通設定を編集",
     "configJsonHint": "Claude Code の設定をすべて入力してください",
-    "editCommonConfigTitle": "共通設定スニペットを編集",
-    "editCommonConfigHint": "共通設定スニペットは、この機能をオンにしたすべてのプロバイダーへマージされます",
     "addProvider": "プロバイダーを追加",
     "sortUpdated": "並び順を更新しました",
     "usageSaved": "利用状況の設定を保存しました",
@@ -667,6 +655,10 @@
     "apiFormatHint": "プロバイダー API の入力フォーマットを選択",
     "apiFormatAnthropic": "Anthropic Messages（ネイティブ）",
     "apiFormatOpenAIChat": "OpenAI Chat Completions（プロキシが必要）",
+    "authField": "認証フィールド",
+    "authFieldAuthToken": "Auth Token（デフォルト）",
+    "authFieldApiKey": "API Key",
+    "authFieldHint": "ほとんどのサードパーティプロバイダーは Auth Token を使用します。一部は API Key が必要です",
     "anthropicDefaultHaikuModel": "既定 Haiku モデル",
     "anthropicDefaultSonnetModel": "既定 Sonnet モデル",
     "anthropicDefaultOpusModel": "既定 Opus モデル",
@@ -738,33 +730,15 @@
     "authJsonHint": "Codex の auth.json 設定内容",
     "configToml": "config.toml (TOML)",
     "configTomlHint": "Codex の config.toml 設定内容",
-    "writeCommonConfig": "共通設定を書き込む",
-    "editCommonConfig": "共通設定を編集",
-    "editCommonConfigTitle": "Codex 共通設定スニペットを編集",
-    "commonConfigHint": "「共通設定を書き込む」がオンの場合、config.toml の末尾に追記されます",
-    "apiUrlLabel": "API リクエスト URL",
-    "extractFromCurrent": "編集内容から抽出",
-    "extractNoCommonConfig": "編集内容から抽出できる共通設定がありません",
-    "extractFailed": "抽出に失敗しました: {{error}}",
-    "saveFailed": "保存に失敗しました: {{error}}"
+    "apiUrlLabel": "API リクエスト URL"
   },
   "geminiConfig": {
     "envFile": "環境変数 (.env)",
     "envFileHint": ".env 形式で Gemini の環境変数を設定",
     "configJson": "設定ファイル (config.json)",
     "configJsonHint": "Gemini 拡張パラメーターを JSON 形式で設定（任意）",
-    "writeCommonConfig": "共通設定を書き込む",
-    "editCommonConfig": "共通設定を編集",
-    "editCommonConfigTitle": "Gemini 共通設定スニペットを編集",
-    "commonConfigHint": "このスニペットは Gemini の .env に書き込みます（GOOGLE_GEMINI_BASE_URL、GEMINI_API_KEY は使用できません）",
-    "extractFromCurrent": "編集内容から抽出",
-    "extractNoCommonConfig": "編集内容から抽出できる共通設定がありません",
-    "extractFailed": "抽出に失敗しました: {{error}}",
-    "saveFailed": "保存に失敗しました: {{error}}",
     "extractedConfigInvalid": "抽出した設定のフォーマットが不正です",
     "invalidJsonFormat": "共通設定スニペットの形式が不正です（有効な JSON でなければなりません）",
-    "commonConfigInvalidKeys": "共通設定スニペットに GOOGLE_GEMINI_BASE_URL または GEMINI_API_KEY を含めることはできません（検出: {{keys}}）",
-    "commonConfigInvalidValues": "共通設定スニペットの値は文字列である必要があります",
     "noCommonConfigToApply": "共通設定スニペットが空、または適用できる項目がありません",
     "configMergeFailed": "設定のマージに失敗しました: {{error}}",
     "configReplaceFailed": "設定の置換に失敗しました: {{error}}"
diff --git a/src/i18n/locales/zh.json b/src/i18n/locales/zh.json
index 512234c33..93176e5f3 100644
--- a/src/i18n/locales/zh.json
+++ b/src/i18n/locales/zh.json
@@ -51,15 +51,7 @@
   },
   "claudeConfig": {
     "configLabel": "Claude Code 配置 (JSON) *",
-    "writeCommonConfig": "写入通用配置",
-    "editCommonConfig": "编辑通用配置",
-    "editCommonConfigTitle": "编辑通用配置片段",
-    "commonConfigHint": "该片段会在勾选\"写入通用配置\"时合并到 settings.json 中",
     "fullSettingsHint": "完整的 Claude Code settings.json 配置内容",
-    "extractFromCurrent": "从编辑内容提取",
-    "extractNoCommonConfig": "当前编辑内容没有可提取的通用配置",
-    "extractFailed": "提取失败: {{error}}",
-    "saveFailed": "保存失败: {{error}}",
     "hideAttribution": "隐藏 AI 署名",
     "alwaysThinking": "扩展思考",
     "enableTeammates": "Teammates 模式"
@@ -125,11 +117,7 @@
     "notes": "备注",
     "notesPlaceholder": "例如：公司专用账号",
     "configJson": "配置 JSON",
-    "writeCommonConfig": "写入通用配置",
-    "editCommonConfigButton": "编辑通用配置",
     "configJsonHint": "请填写完整的 Claude Code 配置",
-    "editCommonConfigTitle": "编辑通用配置片段",
-    "editCommonConfigHint": "通用配置片段将合并到所有启用它的供应商配置中",
     "addProvider": "添加供应商",
     "sortUpdated": "排序已更新",
     "usageSaved": "用量查询配置已保存",
@@ -667,6 +655,10 @@
     "apiFormatHint": "选择供应商 API 的输入格式",
     "apiFormatAnthropic": "Anthropic Messages (原生)",
     "apiFormatOpenAIChat": "OpenAI Chat Completions (需开启代理)",
+    "authField": "认证字段",
+    "authFieldAuthToken": "Auth Token (默认)",
+    "authFieldApiKey": "API Key",
+    "authFieldHint": "大多数第三方供应商使用 Auth Token；少数供应商需要 API Key",
     "anthropicDefaultHaikuModel": "Haiku 默认模型",
     "anthropicDefaultSonnetModel": "Sonnet 默认模型",
     "anthropicDefaultOpusModel": "Opus 默认模型",
@@ -738,33 +730,15 @@
     "authJsonHint": "Codex auth.json 配置内容",
     "configToml": "config.toml (TOML)",
     "configTomlHint": "Codex config.toml 配置内容",
-    "writeCommonConfig": "写入通用配置",
-    "editCommonConfig": "编辑通用配置",
-    "editCommonConfigTitle": "编辑 Codex 通用配置片段",
-    "commonConfigHint": "该片段会在勾选'写入通用配置'时追加到 config.toml 末尾",
-    "apiUrlLabel": "API 请求地址",
-    "extractFromCurrent": "从编辑内容提取",
-    "extractNoCommonConfig": "当前编辑内容没有可提取的通用配置",
-    "extractFailed": "提取失败: {{error}}",
-    "saveFailed": "保存失败: {{error}}"
+    "apiUrlLabel": "API 请求地址"
   },
   "geminiConfig": {
     "envFile": "环境变量 (.env)",
     "envFileHint": "使用 .env 格式配置 Gemini 环境变量",
     "configJson": "配置文件 (config.json)",
     "configJsonHint": "使用 JSON 格式配置 Gemini 扩展参数（可选）",
-    "writeCommonConfig": "写入通用配置",
-    "editCommonConfig": "编辑通用配置",
-    "editCommonConfigTitle": "编辑 Gemini 通用配置片段",
-    "commonConfigHint": "该片段会写入 Gemini 的 .env（不允许包含 GOOGLE_GEMINI_BASE_URL、GEMINI_API_KEY）",
-    "extractFromCurrent": "从编辑内容提取",
-    "extractNoCommonConfig": "当前编辑内容没有可提取的通用配置",
-    "extractFailed": "提取失败: {{error}}",
-    "saveFailed": "保存失败: {{error}}",
     "extractedConfigInvalid": "提取的配置格式错误",
     "invalidJsonFormat": "通用配置片段格式错误（必须是有效的 JSON）",
-    "commonConfigInvalidKeys": "通用配置片段不能包含 GOOGLE_GEMINI_BASE_URL 或 GEMINI_API_KEY（发现：{{keys}}）",
-    "commonConfigInvalidValues": "通用配置片段的值必须是字符串",
     "noCommonConfigToApply": "通用配置片段为空或没有可写入的内容",
     "configMergeFailed": "配置合并失败: {{error}}",
     "configReplaceFailed": "配置替换失败: {{error}}"
diff --git a/src/lib/api/config.ts b/src/lib/api/config.ts
index 1fbbb30cf..c4be88862 100644
--- a/src/lib/api/config.ts
+++ b/src/lib/api/config.ts
@@ -3,27 +3,6 @@ import { invoke } from "@tauri-apps/api/core";
 
 export type AppType = "claude" | "codex" | "gemini" | "omo" | "omo_slim";
 
-/**
- * 获取 Claude 通用配置片段（已废弃，使用 getCommonConfigSnippet）
- * @returns 通用配置片段（JSON 字符串），如果不存在则返回 null
- * @deprecated 使用 getCommonConfigSnippet('claude') 替代
- */
-export async function getClaudeCommonConfigSnippet(): Promise<string | null> {
-  return invoke<string | null>("get_claude_common_config_snippet");
-}
-
-/**
- * 设置 Claude 通用配置片段（已废弃，使用 setCommonConfigSnippet）
- * @param snippet - 通用配置片段（JSON 字符串）
- * @throws 如果 JSON 格式无效
- * @deprecated 使用 setCommonConfigSnippet('claude', snippet) 替代
- */
-export async function setClaudeCommonConfigSnippet(
-  snippet: string,
-): Promise<void> {
-  return invoke("set_claude_common_config_snippet", { snippet });
-}
-
 /**
  * 获取通用配置片段（统一接口）
  * @param appType - 应用类型（claude/codex/gemini）
@@ -47,31 +26,3 @@ export async function setCommonConfigSnippet(
 ): Promise<void> {
   return invoke("set_common_config_snippet", { appType, snippet });
 }
-
-/**
- * 提取通用配置片段
- *
- * 默认读取当前激活供应商的配置；若传入 `options.settingsConfig`，则从编辑器当前内容提取。
- * 会自动排除差异化字段（API Key、模型配置、端点等），返回可复用的通用配置片段。
- *
- * @param appType - 应用类型（claude/codex/gemini）
- * @param options - 可选：提取来源
- * @returns 提取的通用配置片段（JSON/TOML 字符串）
- */
-export type ExtractCommonConfigSnippetOptions = {
-  settingsConfig?: string;
-};
-
-export async function extractCommonConfigSnippet(
-  appType: Exclude<AppType, "omo">,
-  options?: ExtractCommonConfigSnippetOptions,
-): Promise<string> {
-  const args: Record<string, unknown> = { appType };
-  const settingsConfig = options?.settingsConfig;
-
-  if (typeof settingsConfig === "string" && settingsConfig.trim()) {
-    args.settingsConfig = settingsConfig;
-  }
-
-  return invoke<string>("extract_common_config_snippet", args);
-}
diff --git a/src/types.ts b/src/types.ts
index a62bb2c8a..3a81ec3b2 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -145,6 +145,10 @@ export interface ProviderMeta {
   // - "anthropic": 原生 Anthropic Messages API 格式，直接透传
   // - "openai_chat": OpenAI Chat Completions 格式，需要格式转换
   apiFormat?: "anthropic" | "openai_chat";
+  // Claude 认证字段名（仅 Claude 供应商使用）
+  // - "ANTHROPIC_AUTH_TOKEN" (默认): 大多数第三方/聚合供应商
+  // - "ANTHROPIC_API_KEY": 少数供应商需要原生 API Key
+  apiKeyField?: "ANTHROPIC_AUTH_TOKEN" | "ANTHROPIC_API_KEY";
 }
 
 // Skill 同步方式
@@ -155,6 +159,11 @@ export type SkillSyncMethod = "auto" | "symlink" | "copy";
 // - "openai_chat": OpenAI Chat Completions 格式，需要格式转换
 export type ClaudeApiFormat = "anthropic" | "openai_chat";
 
+// Claude 认证字段类型
+// - "ANTHROPIC_AUTH_TOKEN": 大多数第三方/聚合供应商使用（默认）
+// - "ANTHROPIC_API_KEY": 少数供应商需要原生 API Key
+export type ClaudeApiKeyField = "ANTHROPIC_AUTH_TOKEN" | "ANTHROPIC_API_KEY";
+
 // 主页面显示的应用配置
 export interface VisibleApps {
   claude: boolean;
diff --git a/src/utils/providerConfigUtils.ts b/src/utils/providerConfigUtils.ts
index 6658a2333..6d1cd90c5 100644
--- a/src/utils/providerConfigUtils.ts
+++ b/src/utils/providerConfigUtils.ts
@@ -3,86 +3,6 @@
 import type { TemplateValueConfig } from "../config/claudeProviderPresets";
 import { normalizeQuotes } from "@/utils/textNormalization";
 
-const isPlainObject = (value: unknown): value is Record<string, any> => {
-  return Object.prototype.toString.call(value) === "[object Object]";
-};
-
-const deepMerge = (
-  target: Record<string, any>,
-  source: Record<string, any>,
-): Record<string, any> => {
-  Object.entries(source).forEach(([key, value]) => {
-    if (isPlainObject(value)) {
-      if (!isPlainObject(target[key])) {
-        target[key] = {};
-      }
-      deepMerge(target[key], value);
-    } else {
-      // 直接覆盖非对象字段（数组/基础类型）
-      target[key] = value;
-    }
-  });
-  return target;
-};
-
-const deepRemove = (
-  target: Record<string, any>,
-  source: Record<string, any>,
-) => {
-  Object.entries(source).forEach(([key, value]) => {
-    if (!(key in target)) return;
-
-    if (isPlainObject(value) && isPlainObject(target[key])) {
-      // 只移除完全匹配的嵌套属性
-      deepRemove(target[key], value);
-      if (Object.keys(target[key]).length === 0) {
-        delete target[key];
-      }
-    } else if (isSubset(target[key], value)) {
-      // 只有当值完全匹配时才删除
-      delete target[key];
-    }
-  });
-};
-
-const isSubset = (target: any, source: any): boolean => {
-  if (isPlainObject(source)) {
-    if (!isPlainObject(target)) return false;
-    return Object.entries(source).every(([key, value]) =>
-      isSubset(target[key], value),
-    );
-  }
-
-  if (Array.isArray(source)) {
-    if (!Array.isArray(target) || target.length !== source.length) return false;
-    return source.every((item, index) => isSubset(target[index], item));
-  }
-
-  return target === source;
-};
-
-// 深拷贝函数
-const deepClone = <T>(obj: T): T => {
-  if (obj === null || typeof obj !== "object") return obj;
-  if (obj instanceof Date) return new Date(obj.getTime()) as T;
-  if (obj instanceof Array) return obj.map((item) => deepClone(item)) as T;
-  if (obj instanceof Object) {
-    const clonedObj = {} as T;
-    for (const key in obj) {
-      if (obj.hasOwnProperty(key)) {
-        clonedObj[key] = deepClone(obj[key]);
-      }
-    }
-    return clonedObj;
-  }
-  return obj;
-};
-
-export interface UpdateCommonConfigResult {
-  updatedConfig: string;
-  error?: string;
-}
-
 // 验证JSON配置格式
 export const validateJsonConfig = (
   value: string,
@@ -102,69 +22,6 @@ export const validateJsonConfig = (
   }
 };
 
-// 将通用配置片段写入/移除 settingsConfig
-export const updateCommonConfigSnippet = (
-  jsonString: string,
-  snippetString: string,
-  enabled: boolean,
-): UpdateCommonConfigResult => {
-  let config: Record<string, any>;
-  try {
-    config = jsonString ? JSON.parse(jsonString) : {};
-  } catch (err) {
-    return {
-      updatedConfig: jsonString,
-      error: "配置 JSON 解析失败，无法写入通用配置",
-    };
-  }
-
-  if (!snippetString.trim()) {
-    return {
-      updatedConfig: JSON.stringify(config, null, 2),
-    };
-  }
-
-  // 使用统一的验证函数
-  const snippetError = validateJsonConfig(snippetString, "通用配置片段");
-  if (snippetError) {
-    return {
-      updatedConfig: JSON.stringify(config, null, 2),
-      error: snippetError,
-    };
-  }
-
-  const snippet = JSON.parse(snippetString) as Record<string, any>;
-
-  if (enabled) {
-    const merged = deepMerge(deepClone(config), snippet);
-    return {
-      updatedConfig: JSON.stringify(merged, null, 2),
-    };
-  }
-
-  const cloned = deepClone(config);
-  deepRemove(cloned, snippet);
-  return {
-    updatedConfig: JSON.stringify(cloned, null, 2),
-  };
-};
-
-// 检查当前配置是否已包含通用配置片段
-export const hasCommonConfigSnippet = (
-  jsonString: string,
-  snippetString: string,
-): boolean => {
-  try {
-    if (!snippetString.trim()) return false;
-    const config = jsonString ? JSON.parse(jsonString) : {};
-    const snippet = JSON.parse(snippetString);
-    if (!isPlainObject(snippet)) return false;
-    return isSubset(config, snippet);
-  } catch (err) {
-    return false;
-  }
-};
-
 // 读取配置中的 API Key（支持 Claude, Codex, Gemini）
 export const getApiKeyFromConfig = (
   jsonString: string,
@@ -278,9 +135,13 @@ export const hasApiKeyField = (
 export const setApiKeyInConfig = (
   jsonString: string,
   apiKey: string,
-  options: { createIfMissing?: boolean; appType?: string } = {},
+  options: {
+    createIfMissing?: boolean;
+    appType?: string;
+    apiKeyField?: string;
+  } = {},
 ): string => {
-  const { createIfMissing = false, appType } = options;
+  const { createIfMissing = false, appType, apiKeyField } = options;
   try {
     const config = JSON.parse(jsonString);
     if (!config.env) {
@@ -313,13 +174,13 @@ export const setApiKeyInConfig = (
       return JSON.stringify(config, null, 2);
     }
 
-    // Claude API Key (优先写入已存在的字段；若两者均不存在且允许创建，则默认创建 AUTH_TOKEN 字段)
+    // Claude API Key (优先写入已存在的字段；若两者均不存在且允许创建，则使用 apiKeyField 指定的字段名)
     if ("ANTHROPIC_AUTH_TOKEN" in env) {
       env.ANTHROPIC_AUTH_TOKEN = apiKey;
     } else if ("ANTHROPIC_API_KEY" in env) {
       env.ANTHROPIC_API_KEY = apiKey;
     } else if (createIfMissing) {
-      env.ANTHROPIC_AUTH_TOKEN = apiKey;
+      env[apiKeyField ?? "ANTHROPIC_AUTH_TOKEN"] = apiKey;
     } else {
       return jsonString;
     }
@@ -329,85 +190,6 @@ export const setApiKeyInConfig = (
   }
 };
 
-// ========== TOML Config Utilities ==========
-
-export interface UpdateTomlCommonConfigResult {
-  updatedConfig: string;
-  error?: string;
-}
-
-// 保存之前的通用配置片段，用于替换操作
-let previousCommonSnippet = "";
-
-// 将通用配置片段写入/移除 TOML 配置
-export const updateTomlCommonConfigSnippet = (
-  tomlString: string,
-  snippetString: string,
-  enabled: boolean,
-): UpdateTomlCommonConfigResult => {
-  if (!snippetString.trim()) {
-    // 如果片段为空，直接返回原始配置
-    return {
-      updatedConfig: tomlString,
-    };
-  }
-
-  if (enabled) {
-    // 添加通用配置
-    // 先移除旧的通用配置（如果有）
-    let updatedConfig = tomlString;
-    if (previousCommonSnippet && tomlString.includes(previousCommonSnippet)) {
-      updatedConfig = tomlString.replace(previousCommonSnippet, "");
-    }
-
-    // 在文件末尾添加新的通用配置
-    // 确保有适当的换行
-    const needsNewline = updatedConfig && !updatedConfig.endsWith("\n");
-    updatedConfig =
-      updatedConfig + (needsNewline ? "\n\n" : "\n") + snippetString;
-
-    // 保存当前通用配置片段
-    previousCommonSnippet = snippetString;
-
-    return {
-      updatedConfig: updatedConfig.trim() + "\n",
-    };
-  } else {
-    // 移除通用配置
-    if (tomlString.includes(snippetString)) {
-      const updatedConfig = tomlString.replace(snippetString, "");
-      // 清理多余的空行
-      const cleaned = updatedConfig.replace(/\n{3,}/g, "\n\n").trim();
-
-      // 清空保存的状态
-      previousCommonSnippet = "";
-
-      return {
-        updatedConfig: cleaned ? cleaned + "\n" : "",
-      };
-    }
-    return {
-      updatedConfig: tomlString,
-    };
-  }
-};
-
-// 检查 TOML 配置是否已包含通用配置片段
-export const hasTomlCommonConfigSnippet = (
-  tomlString: string,
-  snippetString: string,
-): boolean => {
-  if (!snippetString.trim()) return false;
-
-  // 简单检查配置是否包含片段内容
-  // 去除空白字符后比较，避免格式差异影响
-  const normalizeWhitespace = (str: string) => str.replace(/\s+/g, " ").trim();
-
-  return normalizeWhitespace(tomlString).includes(
-    normalizeWhitespace(snippetString),
-  );
-};
-
 // ========== Codex base_url utils ==========
 
 // 从 Codex 的 TOML 配置文本中提取 base_url（支持单/双引号）