diff --git a/src-tauri/src/agents/commands.rs b/src-tauri/src/agents/commands.rs
index bb93e7d..d01bb5b 100644
--- a/src-tauri/src/agents/commands.rs
+++ b/src-tauri/src/agents/commands.rs
@@ -1257,7 +1257,8 @@ pub(crate) fn validate_agent_can_enable(
         ));
     }
     let detection = inspect_agent_config(client, home, port, api_key);
-    if !detection.installed {
+    let workbuddy_config_available = client == AgentClient::WorkBuddy && detection.config_exists;
+    if !detection.installed && !workbuddy_config_available {
         return Err(format!("{} is not installed", client.name()));
     }
     Ok(())
diff --git a/src-tauri/src/agents/discovery.rs b/src-tauri/src/agents/discovery.rs
index 6b466a4..855d075 100644
--- a/src-tauri/src/agents/discovery.rs
+++ b/src-tauri/src/agents/discovery.rs
@@ -1003,7 +1003,12 @@ pub(crate) fn inspect_agent_config(
     if !client.supported_platform() {
         warnings.push("当前平台不支持 Claude Desktop 3P 配置".to_string());
     } else if !installed && config_exists {
-        warnings.push("只检测到配置文件，未检测到客户端".to_string());
+        warnings.push(if client == AgentClient::WorkBuddy {
+            "只检测到 WorkBuddy 配置文件，仍可编辑配置并接入 CPA；启动功能不可用"
+                .to_string()
+        } else {
+            "只检测到配置文件，未检测到客户端".to_string()
+        });
     }
     if let Some(message) = error.as_ref() {
         warnings.push(message.clone());
diff --git a/src-tauri/src/agents/workbuddy/tests.rs b/src-tauri/src/agents/workbuddy/tests.rs
index e3059de..dbe2ec6 100644
--- a/src-tauri/src/agents/workbuddy/tests.rs
+++ b/src-tauri/src/agents/workbuddy/tests.rs
@@ -181,6 +181,31 @@ fn workbuddy_status_checks_endpoint_key_visibility_and_tool_support() {
     );
 }
 
+#[test]
+fn workbuddy_config_file_allows_cpa_connection_without_detected_application() {
+    let home = Home::new();
+    home.save(&json!({}));
+
+    let status = inspect_agent_config(AgentClient::WorkBuddy, &home.0, 8317, "test-key");
+    assert!(!status.installed);
+    assert!(status.config_exists);
+    assert!(status.config_valid);
+    assert!(status.launch_targets.is_empty());
+    assert!(validate_agent_can_enable(
+        AgentClient::WorkBuddy,
+        &home.0,
+        8317,
+        "test-key"
+    )
+    .is_ok());
+
+    home.apply("gpt-one").unwrap();
+    let connected = inspect_agent_config(AgentClient::WorkBuddy, &home.0, 8317, "test-key");
+    assert!(!connected.installed);
+    assert!(connected.configured);
+    assert_eq!(connected.current_model.as_deref(), Some("gpt-one"));
+}
+
 #[test]
 fn workbuddy_visibility_restores_original_references_and_keeps_user_edits() {
     for external_edit in [false, true] {
diff --git a/src/pages/AgentsPage.tsx b/src/pages/AgentsPage.tsx
index 1a883ef..8619ab1 100644
--- a/src/pages/AgentsPage.tsx
+++ b/src/pages/AgentsPage.tsx
@@ -102,6 +102,7 @@ type AgentConfigStatus = {
   cliVersion: string | null;
   appVersion: string | null;
   pluginVersion: string | null;
+  configExists: boolean;
   configValid: boolean;
   configured: boolean;
   connectionState: 'configured' | 'not-configured' | 'needs-update' | 'invalid';
@@ -1196,9 +1197,12 @@ export function AgentsPage({ embedded = false, onConfigurationApplied }: AgentsP
     && claudeModelMappingsDraft.autoCompactPct >= 1
     && claudeModelMappingsDraft.autoCompactPct <= 100
   );
-  const canEnable = Boolean(
+  const canConfigureActiveClient = Boolean(
     activeStatus?.supportedPlatform
-      && activeStatus.installed
+      && (activeStatus.installed || (selected === 'workbuddy' && activeStatus.configExists)),
+  );
+  const canEnable = Boolean(
+    canConfigureActiveClient
       && !modelLoading
       && (isClaudeModelMappingClient
         ? claudeMappingsReady && claudeCodeRuntimeSettingsReady
@@ -2091,7 +2095,7 @@ export function AgentsPage({ embedded = false, onConfigurationApplied }: AgentsP
                   value={isClaudeModelMappingClient ? claudeModelMappingsDraft.sonnet : selectedModel}
                   loading={modelLoading}
                   error={modelError}
-                  disabled={busy || !activeStatus?.installed || !activeStatus.supportedPlatform}
+                  disabled={busy || !canConfigureActiveClient}
                   onChange={selectEmbeddedModel}
                   onRefresh={refreshModels}
                 />
@@ -2187,7 +2191,7 @@ export function AgentsPage({ embedded = false, onConfigurationApplied }: AgentsP
                     value={selectedModel}
                     loading={modelLoading}
                     error={modelError}
-                    disabled={busy || !activeStatus?.installed || !activeStatus.supportedPlatform}
+                    disabled={busy || !canConfigureActiveClient}
                     onChange={selectModel}
                     onRefresh={refreshModels}
                   />
diff --git a/tests/agent-management-ui.cjs b/tests/agent-management-ui.cjs
index 71d5c3e..524aef3 100644
--- a/tests/agent-management-ui.cjs
+++ b/tests/agent-management-ui.cjs
@@ -141,6 +141,14 @@ const path = require('node:path');
       await open(mode + 'not-installed');
       assert.ok(await button('启动 App').isDisabled());
       assert.ok(await button('重启 App').isDisabled());
+      await open(mode + 'client=workbuddy&config-only&fresh');
+      assert.ok(await page.locator('.agent-model-trigger').isEnabled());
+      assert.ok(await button('一键接入').isEnabled());
+      assert.ok(await button('启动 App').isDisabled());
+      assert.ok(await button('重启 App').isDisabled());
+      await button('一键接入').click();
+      await page.waitForFunction(() => window.fixtureCalls.some(call => call.cmd === 'update_agent_config'));
+      assert.deepEqual((await calls('update_agent_config'))[0].args.client, 'workbuddy');
       await open(mode + 'client=kimi-code');
       assert.equal(await button('重启 App').count(), 0);
 
diff --git a/tests/fixtures/agent-backups.tsx b/tests/fixtures/agent-backups.tsx
index a8111b7..a2dc5bd 100644
--- a/tests/fixtures/agent-backups.tsx
+++ b/tests/fixtures/agent-backups.tsx
@@ -35,7 +35,7 @@ mockIPC(async (cmd,args:any) => {
  calls.push({cmd,args});
  if(cmd==='plugin:event|listen') return 1;
  if(cmd==='plugin:event|unlisten'||cmd==='set_app_locale') return null;
- if(cmd==='get_agent_config_statuses'||cmd==='refresh_agent_config_statuses') return ids.map(id=>({id,name:id,supportedPlatform:true,installed:!params.has('not-installed'),pluginInstalled:!params.has('no-plugin'),launchTargets:params.has('not-installed')?[]:['claude-desktop','zcode','workbuddy'].includes(id)?[{id:'app',label:id,detail:'test desktop'}]:['codex','opencode'].includes(id)&&!params.has('cli-only')?[...(params.has('app-only')?[]:[{id:'cli',label:'CLI',detail:'test CLI'}]),{id:'app',label:'APP',detail:'test desktop'}]:[{id:'cli',label:'CLI',detail:'test CLI'}],version:'1.0',cliVersion:'1.0',appVersion:null,pluginVersion:'1.0',configValid:params.get('state')!=='invalid',connectionState:params.get('state') || (currentModel?'configured':'not-configured'),configured:!!currentModel,configurationSynchronized:!!currentModel,currentModel,oauthConfiguration:id==='codex'&&currentOauth,codexNativeOauth:id==='codex'&&nativeOauth,modificationEnabled:!!currentModel,modificationState:currentModel?'applied':'unconfigured',backupAvailable:false,appliedModel:currentModel,claudeCodeModelMappings:id==='claude-code'?currentMappings[id]??null:null,claudeDesktopModelMappings:id==='claude-desktop'?currentMappings[id]??null:null,warnings:[],error:null})).map(status=>status.id==='codex'&&(nativeOauth||codexClosed)?{...status,configured:false,connectionState:'not-configured',configurationSynchronized:false,currentModel:null,appliedModel:null,modificationEnabled:false,modificationState:'unconfigured',oauthConfiguration:false}:status);
+ if(cmd==='get_agent_config_statuses'||cmd==='refresh_agent_config_statuses') return ids.map(id=>({id,name:id,supportedPlatform:true,installed:!params.has('not-installed')&&!(params.has('config-only')&&id==='workbuddy'),pluginInstalled:!params.has('no-plugin'),launchTargets:params.has('not-installed')||(params.has('config-only')&&id==='workbuddy')?[]:['claude-desktop','zcode','workbuddy'].includes(id)?[{id:'app',label:id,detail:'test desktop'}]:['codex','opencode'].includes(id)&&!params.has('cli-only')?[...(params.has('app-only')?[]:[{id:'cli',label:'CLI',detail:'test CLI'}]),{id:'app',label:'APP',detail:'test desktop'}]:[{id:'cli',label:'CLI',detail:'test CLI'}],version:'1.0',cliVersion:'1.0',appVersion:null,pluginVersion:'1.0',configExists:!params.has('not-installed')||(params.has('config-only')&&id==='workbuddy'),configValid:params.get('state')!=='invalid',connectionState:params.get('state') || (currentModel?'configured':'not-configured'),configured:!!currentModel,configurationSynchronized:!!currentModel,currentModel,oauthConfiguration:id==='codex'&&currentOauth,codexNativeOauth:id==='codex'&&nativeOauth,modificationEnabled:!!currentModel,modificationState:currentModel?'applied':'unconfigured',backupAvailable:false,appliedModel:currentModel,claudeCodeModelMappings:id==='claude-code'?currentMappings[id]??null:null,claudeDesktopModelMappings:id==='claude-desktop'?currentMappings[id]??null:null,warnings:[],error:null})).map(status=>status.id==='codex'&&(nativeOauth||codexClosed)?{...status,configured:false,connectionState:'not-configured',configurationSynchronized:false,currentModel:null,appliedModel:null,modificationEnabled:false,modificationState:'unconfigured',oauthConfiguration:false}:status);
  if(cmd==='close_codex_config_modification') {
    closeCount++;
    if(params.has('fail-close')&&closeCount===1)throw new Error('模拟关闭失败，已回滚');