Separate online and airplane AI profiles.

README.md

@@ -22,7 +22,7 @@ The project is under active development. Core blogging workflows are broadly ava
 - `bds-cli server` hosting the shared application engines over a loopback-by-default, public-key-only SSH service, with restrictive private key material, live authorization updates, terminal-session transport, CLI-change synchronization, ordered domain/task events, and native desktop remote-project selection.
 - Markdown/Liquid rendering with native macros, multilingual routes, feeds, sitemap, Pagefind, and incremental site generation through cancellable section task groups.
 - Local preview in the app or system browser.
-- Optional one-shot AI translation, description, analysis, taxonomy, and language-detection operations using online or local OpenAI-compatible endpoints with airplane-mode gating.
+- Optional one-shot AI translation, description, analysis, taxonomy, and language-detection operations using independent online and local OpenAI-compatible profiles. Each profile has secure credentials, discovered chat/title/image model selections, explicit tool/vision overrides, chat testing, and status-bar airplane-mode routing.
 - Persistent conversational AI with safe Markdown, streamed and cancellable responses, model/session/token tracking, bounded project-aware blog tools, and localized conversation management in the Chat workspace. Allowlisted render tools add persistent native cards, charts, forms, lists, metrics, mind maps, tables, and tabs without executing assistant-provided HTML or JavaScript.
 - SSH-agent-based SCP or rsync publishing.
 - Integrated Git workflow with repository initialization, Git LFS image tracking, status and diffs, branch/file history, commits, remotes, cancellable fetch/pull/push, and post-pull filesystem reconciliation; network actions respect airplane mode.

RUST_PLAN_CORE.md

@@ -99,9 +99,9 @@ Open:
 
 Available:
 
-- Configurable online and airplane-mode OpenAI-compatible endpoints.
-- Secure API-key storage through the operating-system keychain.
-- Model catalog discovery and model selection.
+- Independent online and airplane-mode OpenAI-compatible profiles, selected by the status-bar airplane switch.
+- Secure keychain credentials for both profiles, optional for local endpoints.
+- Model discovery without a preselected model; per-profile chat/title/image selections, explicit tool/vision overrides, and minimal chat tests.
 - Post translation, media translation, image alt text, post analysis, taxonomy analysis, WordPress-import taxonomy mapping, and language detection.
 - Explicit offline gating and user-visible errors.
 - Parsed input, output, cache-read, and cache-write token usage returned from every one-shot operation; persistent chat accounting is tracked in the extension plan.

RUST_PLAN_EXTENSION.md

@@ -40,7 +40,7 @@ Done:
 - Project-aware tools over statistics, FTS search, posts, media, templates, scripts, tags/categories, metadata mutation through shared engines, and allowlisted workspace navigation.
 - Localized Chat sidebar/editor with conversation and model controls, safe GFM text rendering with blocked external images, streaming/tool state, multiline send/stop controls, and status-bar token totals.
 - Fixed native A2UI cards, charts, forms, lists, metrics, mind maps, tables, and tabs with safe nested fallbacks, persistent stable-ID interaction state, debounced form values, and strictly allowlisted application actions.
-- Online/airplane endpoint routing uses the shared secure endpoint and model infrastructure; unavailable modes direct the user to the existing localized AI settings.
+- Online/airplane routing swaps the complete active profile—endpoint, credentials, chat/title/image models, and tool/vision overrides—through the status-bar switch; unavailable modes direct the user to the localized two-profile AI settings.
 
 ### Embeddings, semantic search, and duplicates — Done
 

crates/bds-cli/src/lib.rs

@@ -883,6 +883,12 @@ fn config(db: &Database, command: ConfigCommand) -> Result<CommandOutput> {
             cli_sync::run_cli_mutation(db.conn(), || {
                 if key == engine::settings::ONLINE_API_KEY {
                     engine::ai::save_online_api_key(db.conn(), &value)
+                } else if key == engine::settings::AIRPLANE_API_KEY {
+                    engine::ai::save_endpoint_api_key(
+                        db.conn(),
+                        engine::ai::AiEndpointKind::Airplane,
+                        &value,
+                    )
                 } else {
                     engine::settings::set(db.conn(), &key, &value)
                 }

crates/bds-core/src/engine/ai.rs

@@ -53,12 +53,28 @@ pub struct StoredAiEndpointConfig {
 #[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize, Default)]
 pub struct AiSettings {
     pub offline_mode: bool,
-    pub default_model: Option<String>,
+    pub system_prompt: String,
+    pub online: AiModeSettings,
+    pub airplane: AiModeSettings,
+}
+
+#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize, Default)]
+pub struct AiModeSettings {
+    pub endpoint: StoredAiEndpointConfig,
     pub title_model: Option<String>,
     pub image_model: Option<String>,
-    pub system_prompt: String,
-    pub online_endpoint: StoredAiEndpointConfig,
-    pub airplane_endpoint: StoredAiEndpointConfig,
+    pub chat_supports_tools: Option<bool>,
+    pub image_supports_vision: Option<bool>,
+}
+
+impl AiSettings {
+    pub fn active(&self) -> &AiModeSettings {
+        if self.offline_mode {
+            &self.airplane
+        } else {
+            &self.online
+        }
+    }
 }
 
 impl Default for StoredAiEndpointConfig {
@@ -78,6 +94,7 @@ pub struct AiModelInfo {
     pub name: String,
     pub context_window: Option<u64>,
     pub max_output_tokens: Option<u64>,
+    pub supports_tools: bool,
     pub supports_vision: bool,
 }
 
@@ -163,21 +180,28 @@ pub enum OneShotResponse {
 }
 
 pub fn load_ai_settings(conn: &Connection, offline_mode: bool) -> EngineResult<AiSettings> {
-    let online_endpoint = load_endpoint(conn, AiEndpointKind::Online)?;
-    let airplane_endpoint = load_endpoint(conn, AiEndpointKind::Airplane)?;
-    let default_model = get_optional_setting(conn, "ai.default_model")?;
-    let title_model = get_optional_setting(conn, "ai.title_model")?;
-    let image_model = get_optional_setting(conn, "ai.image_model")?;
+    let legacy_chat_model = get_optional_setting(conn, "ai.default_model")?;
+    let legacy_title_model = get_optional_setting(conn, "ai.title_model")?;
+    let legacy_image_model = get_optional_setting(conn, "ai.image_model")?;
     let system_prompt = get_optional_setting(conn, "ai.system_prompt")?.unwrap_or_default();
 
     Ok(AiSettings {
         offline_mode,
-        default_model,
-        title_model,
-        image_model,
         system_prompt,
-        online_endpoint,
-        airplane_endpoint,
+        online: load_mode_settings(
+            conn,
+            AiEndpointKind::Online,
+            legacy_chat_model.as_deref(),
+            legacy_title_model.as_deref(),
+            legacy_image_model.as_deref(),
+        )?,
+        airplane: load_mode_settings(
+            conn,
+            AiEndpointKind::Airplane,
+            legacy_chat_model.as_deref(),
+            legacy_title_model.as_deref(),
+            legacy_image_model.as_deref(),
+        )?,
     })
 }
 
@@ -196,20 +220,32 @@ pub fn save_endpoint(conn: &Connection, endpoint: &AiEndpointConfig) -> EngineRe
         endpoint.model.trim(),
         checked_at,
     )?;
-    if endpoint.kind == AiEndpointKind::Online {
-        if let Some(api_key) = &endpoint.api_key {
-            save_online_api_key_at(conn, api_key, checked_at)?;
-        }
+    set_setting(conn, "ai.default_model", "", checked_at)?;
+    if let Some(api_key) = &endpoint.api_key {
+        save_endpoint_api_key_at(conn, endpoint.kind, api_key, checked_at)?;
     }
     Ok(())
 }
 
 pub fn save_online_api_key(conn: &Connection, api_key: &str) -> EngineResult<()> {
-    save_online_api_key_at(conn, api_key, now_unix_ms())
+    save_endpoint_api_key(conn, AiEndpointKind::Online, api_key)
 }
 
-fn save_online_api_key_at(conn: &Connection, api_key: &str, updated_at: i64) -> EngineResult<()> {
-    let entry = endpoint_keyring_entry(AiEndpointKind::Online)?;
+pub fn save_endpoint_api_key(
+    conn: &Connection,
+    kind: AiEndpointKind,
+    api_key: &str,
+) -> EngineResult<()> {
+    save_endpoint_api_key_at(conn, kind, api_key, now_unix_ms())
+}
+
+fn save_endpoint_api_key_at(
+    conn: &Connection,
+    kind: AiEndpointKind,
+    api_key: &str,
+    updated_at: i64,
+) -> EngineResult<()> {
+    let entry = endpoint_keyring_entry(kind)?;
     let configured = !api_key.trim().is_empty();
     if configured {
         entry.set_password(api_key.trim()).map_err(keyring_error)?;
@@ -221,7 +257,7 @@ fn save_online_api_key_at(conn: &Connection, api_key: &str, updated_at: i64) ->
     }
     set_setting(
         conn,
-        &endpoint_setting_key(AiEndpointKind::Online, "api_key_configured"),
+        &endpoint_setting_key(kind, "api_key_configured"),
         if configured { "true" } else { "false" },
         updated_at,
     )
@@ -229,19 +265,46 @@ fn save_online_api_key_at(conn: &Connection, api_key: &str, updated_at: i64) ->
 
 pub fn save_model_preferences(
     conn: &Connection,
-    default_model: Option<&str>,
+    kind: AiEndpointKind,
     title_model: Option<&str>,
     image_model: Option<&str>,
-    system_prompt: &str,
+    chat_supports_tools: Option<bool>,
+    image_supports_vision: Option<bool>,
 ) -> EngineResult<()> {
     let updated_at = now_unix_ms();
-    set_optional_setting(conn, "ai.default_model", default_model, updated_at)?;
-    set_optional_setting(conn, "ai.title_model", title_model, updated_at)?;
-    set_optional_setting(conn, "ai.image_model", image_model, updated_at)?;
-    set_setting(conn, "ai.system_prompt", system_prompt, updated_at)?;
+    set_optional_setting(
+        conn,
+        &endpoint_setting_key(kind, "title_model"),
+        title_model,
+        updated_at,
+    )?;
+    set_optional_setting(
+        conn,
+        &endpoint_setting_key(kind, "image_model"),
+        image_model,
+        updated_at,
+    )?;
+    set_optional_bool_setting(
+        conn,
+        &endpoint_setting_key(kind, "chat_supports_tools"),
+        chat_supports_tools,
+        updated_at,
+    )?;
+    set_optional_bool_setting(
+        conn,
+        &endpoint_setting_key(kind, "image_supports_vision"),
+        image_supports_vision,
+        updated_at,
+    )?;
+    set_setting(conn, "ai.title_model", "", updated_at)?;
+    set_setting(conn, "ai.image_model", "", updated_at)?;
     Ok(())
 }
 
+pub fn save_system_prompt(conn: &Connection, system_prompt: &str) -> EngineResult<()> {
+    set_setting(conn, "ai.system_prompt", system_prompt, now_unix_ms())
+}
+
 pub fn active_endpoint(conn: &Connection, offline_mode: bool) -> EngineResult<AiEndpointConfig> {
     let kind = if offline_mode {
         AiEndpointKind::Airplane
@@ -255,13 +318,19 @@ pub fn active_endpoint(conn: &Connection, offline_mode: bool) -> EngineResult<Ai
             kind.as_str()
         )));
     }
-    let api_key = if kind == AiEndpointKind::Online {
+    if kind == AiEndpointKind::Online && !stored.api_key_configured {
+        return Err(EngineError::Validation(
+            "AI unavailable - configure online endpoint in Settings".to_string(),
+        ));
+    }
+    let api_key = if stored.api_key_configured {
         let entry = endpoint_keyring_entry(kind)?;
         let password = entry.get_password().map_err(keyring_error)?;
         if password.trim().is_empty() {
-            return Err(EngineError::Validation(
-                "AI unavailable - configure online endpoint in Settings".to_string(),
-            ));
+            return Err(EngineError::Validation(format!(
+                "AI unavailable - configure {} endpoint in Settings",
+                kind.as_str()
+            )));
         }
         Some(password)
     } else {
@@ -287,7 +356,7 @@ pub fn load_endpoint_api_key(kind: AiEndpointKind) -> EngineResult<Option<String
 }
 
 pub fn refresh_model_catalog(endpoint: &AiEndpointConfig) -> EngineResult<Vec<AiModelInfo>> {
-    validate_endpoint_config(endpoint)?;
+    validate_endpoint_access(endpoint)?;
     let client = build_http_client()?;
     let request = client.get(models_url(&endpoint.url));
     let response = with_auth(request, endpoint).send()?.error_for_status()?;
@@ -325,11 +394,17 @@ pub fn refresh_model_catalog(endpoint: &AiEndpointConfig) -> EngineResult<Vec<Ai
                     .any(|value| value.as_str() == Some("vision"))
             })
             .unwrap_or(false);
+        let supports_tools = model
+            .get("supports_tools")
+            .or_else(|| model.get("supportsTools"))
+            .and_then(Value::as_bool)
+            .unwrap_or(false);
         result.push(AiModelInfo {
             id,
             name,
             context_window,
             max_output_tokens,
+            supports_tools,
             supports_vision,
         });
     }
@@ -337,8 +412,25 @@ pub fn refresh_model_catalog(endpoint: &AiEndpointConfig) -> EngineResult<Vec<Ai
     Ok(result)
 }
 
-pub fn test_endpoint(endpoint: &AiEndpointConfig) -> EngineResult<()> {
-    let _ = refresh_model_catalog(endpoint)?;
+pub fn test_chat(endpoint: &AiEndpointConfig, model: &str) -> EngineResult<()> {
+    validate_endpoint_access(endpoint)?;
+    if model.trim().is_empty() {
+        return Err(EngineError::Validation("model is required".to_string()));
+    }
+    let payload = json!({
+        "model": model.trim(),
+        "messages": [{"role": "user", "content": "Reply with OK."}],
+        "max_tokens": 8,
+        "stream": false,
+    });
+    with_auth(
+        build_http_client()?
+            .post(chat_completions_url(&endpoint.url))
+            .json(&payload),
+        endpoint,
+    )
+    .send()?
+    .error_for_status()?;
     Ok(())
 }
 
@@ -433,17 +525,50 @@ fn load_endpoint(conn: &Connection, kind: AiEndpointKind) -> EngineResult<Stored
     })
 }
 
-fn validate_endpoint_config(endpoint: &AiEndpointConfig) -> EngineResult<()> {
-    if endpoint.url.trim().is_empty() {
-        return Err(EngineError::Validation(
-            "endpoint url is required".to_string(),
-        ));
+fn load_mode_settings(
+    conn: &Connection,
+    kind: AiEndpointKind,
+    legacy_chat_model: Option<&str>,
+    legacy_title_model: Option<&str>,
+    legacy_image_model: Option<&str>,
+) -> EngineResult<AiModeSettings> {
+    let mut endpoint = load_endpoint(conn, kind)?;
+    if endpoint.model.trim().is_empty() {
+        endpoint.model = legacy_chat_model.unwrap_or_default().to_string();
     }
+    Ok(AiModeSettings {
+        endpoint,
+        title_model: get_optional_setting(conn, &endpoint_setting_key(kind, "title_model"))?
+            .or_else(|| legacy_title_model.map(str::to_string)),
+        image_model: get_optional_setting(conn, &endpoint_setting_key(kind, "image_model"))?
+            .or_else(|| legacy_image_model.map(str::to_string)),
+        chat_supports_tools: get_optional_bool_setting(
+            conn,
+            &endpoint_setting_key(kind, "chat_supports_tools"),
+        )?,
+        image_supports_vision: get_optional_bool_setting(
+            conn,
+            &endpoint_setting_key(kind, "image_supports_vision"),
+        )?,
+    })
+}
+
+fn validate_endpoint_config(endpoint: &AiEndpointConfig) -> EngineResult<()> {
+    validate_endpoint_access(endpoint)?;
     if endpoint.model.trim().is_empty() {
         return Err(EngineError::Validation(
             "endpoint model is required".to_string(),
         ));
     }
+    Ok(())
+}
+
+fn validate_endpoint_access(endpoint: &AiEndpointConfig) -> EngineResult<()> {
+    if endpoint.url.trim().is_empty() {
+        return Err(EngineError::Validation(
+            "endpoint url is required".to_string(),
+        ));
+    }
     if endpoint.kind == AiEndpointKind::Online
         && endpoint
             .api_key
@@ -463,17 +588,23 @@ fn select_model(
     endpoint: &AiEndpointConfig,
     operation: &OneShotOperation,
 ) -> EngineResult<String> {
+    let active = settings.active();
     let selected = match operation {
-        OneShotOperation::AnalyzeImage => settings.image_model.as_ref(),
+        OneShotOperation::AnalyzeImage => {
+            if active.image_supports_vision == Some(false) {
+                return Err(EngineError::Validation(
+                    "AI unavailable - selected image model is not configured for vision"
+                        .to_string(),
+                ));
+            }
+            active.image_model.as_ref()
+        }
         OneShotOperation::AnalyzeTaxonomy
         | OneShotOperation::MapImportTaxonomy
         | OneShotOperation::AnalyzePost
         | OneShotOperation::DetectLanguage
         | OneShotOperation::TranslatePost { .. }
-        | OneShotOperation::TranslateMedia { .. } => settings
-            .title_model
-            .as_ref()
-            .or(settings.default_model.as_ref()),
+        | OneShotOperation::TranslateMedia { .. } => active.title_model.as_ref(),
     }
     .filter(|model| !model.trim().is_empty())
     .cloned()
@@ -746,6 +877,22 @@ fn set_optional_setting(
     set_setting(conn, key, value.unwrap_or(""), updated_at)
 }
 
+fn set_optional_bool_setting(
+    conn: &Connection,
+    key: &str,
+    value: Option<bool>,
+    updated_at: i64,
+) -> EngineResult<()> {
+    set_setting(
+        conn,
+        key,
+        value
+            .map(|value| if value { "true" } else { "false" })
+            .unwrap_or(""),
+        updated_at,
+    )
+}
+
 fn get_optional_setting(conn: &Connection, key: &str) -> EngineResult<Option<String>> {
     match setting::get_setting_by_key(conn, key) {
         Ok(setting) if setting.value.trim().is_empty() => Ok(None),
@@ -755,6 +902,10 @@ fn get_optional_setting(conn: &Connection, key: &str) -> EngineResult<Option<Str
     }
 }
 
+fn get_optional_bool_setting(conn: &Connection, key: &str) -> EngineResult<Option<bool>> {
+    Ok(get_optional_setting(conn, key)?.map(|value| value == "true"))
+}
+
 fn models_url(base_url: &str) -> String {
     join_openai_path(base_url, "models")
 }
@@ -808,9 +959,9 @@ mod tests {
         let db = setup();
         let settings = load_ai_settings(db.conn(), false).unwrap();
         assert!(!settings.offline_mode);
-        assert!(settings.online_endpoint.url.is_empty());
-        assert!(settings.airplane_endpoint.url.is_empty());
-        assert!(settings.default_model.is_none());
+        assert!(settings.online.endpoint.url.is_empty());
+        assert!(settings.airplane.endpoint.url.is_empty());
+        assert!(settings.online.title_model.is_none());
     }
 
     #[test]
@@ -859,24 +1010,125 @@ mod tests {
         let server = spawn_test_server(
             |request| {
                 assert!(request.starts_with("GET /v1/models HTTP/1.1"));
+                assert!(
+                    request.contains("authorization: Bearer dummy")
+                        || request.contains("Authorization: Bearer dummy")
+                );
                 http_ok(
-                    r#"{"data":[{"id":"gpt-4.1-mini","name":"GPT 4.1 mini","context_window":128000,"max_output_tokens":8192,"modalities":["text"]},{"id":"gpt-4.1","modalities":["text","vision"]}]}"#,
+                    r#"{"data":[{"id":"gpt-4.1-mini","name":"GPT 4.1 mini","context_window":128000,"max_output_tokens":8192,"supports_tools":true,"modalities":["text"]},{"id":"gpt-4.1","modalities":["text","vision"]}]}"#,
                 )
             },
             1,
         );
         let models = refresh_model_catalog(&AiEndpointConfig {
-            kind: AiEndpointKind::Airplane,
+            kind: AiEndpointKind::Online,
             url: server,
-            model: "gpt-4.1-mini".to_string(),
-            api_key: None,
+            model: String::new(),
+            api_key: Some("dummy".to_string()),
         })
         .unwrap();
         assert_eq!(models.len(), 2);
         assert_eq!(models[0].name, "GPT 4.1 mini");
+        assert!(models[0].supports_tools);
         assert!(models[1].supports_vision);
     }
 
+    #[test]
+    fn model_preferences_are_independent_per_endpoint() {
+        let db = setup();
+        save_model_preferences(
+            db.conn(),
+            AiEndpointKind::Online,
+            Some("online-title"),
+            Some("online-image"),
+            Some(true),
+            Some(true),
+        )
+        .unwrap();
+        save_model_preferences(
+            db.conn(),
+            AiEndpointKind::Airplane,
+            Some("local-title"),
+            Some("local-image"),
+            Some(false),
+            Some(true),
+        )
+        .unwrap();
+
+        let settings = load_ai_settings(db.conn(), false).unwrap();
+        assert_eq!(settings.online.title_model.as_deref(), Some("online-title"));
+        assert_eq!(
+            settings.airplane.title_model.as_deref(),
+            Some("local-title")
+        );
+        assert_eq!(settings.online.chat_supports_tools, Some(true));
+        assert_eq!(settings.airplane.chat_supports_tools, Some(false));
+        assert_eq!(settings.online.image_supports_vision, Some(true));
+        assert_eq!(settings.airplane.image_supports_vision, Some(true));
+    }
+
+    #[test]
+    fn test_chat_sends_the_selected_model() {
+        let server = spawn_test_server(
+            |request| {
+                assert!(request.starts_with("POST /v1/chat/completions HTTP/1.1"));
+                assert!(request.contains(r#""model":"qwen-9b""#));
+                assert!(
+                    request.contains("authorization: Bearer dummy")
+                        || request.contains("Authorization: Bearer dummy")
+                );
+                http_ok(r#"{"choices":[{"message":{"content":"OK"}}]}"#)
+            },
+            1,
+        );
+
+        test_chat(
+            &AiEndpointConfig {
+                kind: AiEndpointKind::Airplane,
+                url: server,
+                model: String::new(),
+                api_key: Some("dummy".to_string()),
+            },
+            "qwen-9b",
+        )
+        .unwrap();
+    }
+
+    #[test]
+    fn explicit_vision_override_blocks_image_requests() {
+        let db = setup();
+        save_endpoint(
+            db.conn(),
+            &AiEndpointConfig {
+                kind: AiEndpointKind::Airplane,
+                url: "http://localhost:11434/v1".to_string(),
+                model: "qwen".to_string(),
+                api_key: None,
+            },
+        )
+        .unwrap();
+        save_model_preferences(
+            db.conn(),
+            AiEndpointKind::Airplane,
+            None,
+            Some("qwen-vl"),
+            Some(false),
+            Some(false),
+        )
+        .unwrap();
+
+        let error = run_one_shot(
+            db.conn(),
+            true,
+            &OneShotRequest {
+                operation: OneShotOperation::AnalyzeImage,
+                content: json!({"image_data_url": "data:image/jpeg;base64,abc123"}),
+            },
+        )
+        .unwrap_err();
+        assert!(error.to_string().contains("not configured for vision"));
+    }
+
     #[test]
     #[ignore = "touches system keychain; run explicitly when validating keychain integration"]
     fn run_one_shot_uses_active_endpoint_and_parses_response() {
@@ -909,7 +1161,15 @@ mod tests {
             },
         )
         .unwrap();
-        save_model_preferences(db.conn(), None, Some("gpt-4.1-mini"), None, "").unwrap();
+        save_model_preferences(
+            db.conn(),
+            AiEndpointKind::Online,
+            Some("gpt-4.1-mini"),
+            None,
+            None,
+            None,
+        )
+        .unwrap();
 
         let (response, usage) = run_one_shot(
             db.conn(),

crates/bds-core/src/engine/chat.rs

@@ -84,6 +84,7 @@ pub struct ChatSendOptions {
     pub max_output_tokens: u64,
     pub max_tool_rounds: usize,
     pub enable_tools: bool,
+    pub model_supports_tools: Option<bool>,
     pub event_handler: Option<Arc<dyn Fn(ChatEvent) + Send + Sync>>,
 }
 
@@ -96,6 +97,7 @@ impl Default for ChatSendOptions {
             max_output_tokens: DEFAULT_OUTPUT_TOKENS,
             max_tool_rounds: MAX_TOOL_ROUNDS,
             enable_tools: true,
+            model_supports_tools: None,
             event_handler: None,
         }
     }
@@ -467,7 +469,7 @@ pub fn send_chat_message(
     offline_mode: bool,
     conversation_id: &str,
     content: &str,
-    options: ChatSendOptions,
+    mut options: ChatSendOptions,
 ) -> EngineResult<ChatTurnResult> {
     let content = content.trim();
     if content.is_empty() {
@@ -480,6 +482,11 @@ pub fn send_chat_message(
         Some(endpoint) => validate_runtime_endpoint(endpoint)?,
         None => ai::active_endpoint(conn, offline_mode)?,
     };
+    if options.model_supports_tools.is_none() {
+        options.model_supports_tools = ai::load_ai_settings(conn, offline_mode)?
+            .active()
+            .chat_supports_tools;
+    }
     let model = options
         .model
         .clone()
@@ -568,7 +575,11 @@ fn run_turns(
 ) -> EngineResult<ChatTurnResult> {
     let mut total_usage = TokenUsage::default();
     let max_rounds = options.max_tool_rounds.min(MAX_TOOL_ROUNDS);
-    let supports_tools = options.enable_tools && chat_tools::model_supports_tools(conn, model)?;
+    let supports_tools = options.enable_tools
+        && match options.model_supports_tools {
+            Some(supports_tools) => supports_tools,
+            None => chat_tools::model_supports_tools(conn, model)?,
+        };
     let catalog_model = list_models(conn)?
         .into_iter()
         .find(|candidate| candidate.id == model);
@@ -841,7 +852,28 @@ fn request_completion(
     if let Some(api_key) = endpoint.api_key.as_deref() {
         request = request.bearer_auth(api_key);
     }
-    let mut response = request.send()?.error_for_status()?;
+    let mut response = request.send()?;
+    let status = response.status();
+    if !status.is_success() {
+        let body = response.text().unwrap_or_default();
+        let detail = serde_json::from_str::<Value>(&body)
+            .ok()
+            .and_then(|value| {
+                value
+                    .pointer("/error/message")
+                    .or_else(|| value.get("error"))
+                    .or_else(|| value.get("message"))
+                    .and_then(Value::as_str)
+                    .map(str::to_string)
+            })
+            .unwrap_or_else(|| body.trim().to_string());
+        let detail = (!detail.is_empty())
+            .then_some(format!(": {detail}"))
+            .unwrap_or_default();
+        return Err(EngineError::Parse(format!(
+            "AI provider returned {status}{detail}"
+        )));
+    }
     let is_stream = response
         .headers()
         .get(reqwest::header::CONTENT_TYPE)

crates/bds-core/src/engine/settings.rs

@@ -7,7 +7,9 @@ use crate::util::now_unix_ms;
 
 pub const UI_LANGUAGE_KEY: &str = "ui.language";
 pub const ONLINE_API_KEY: &str = "ai.endpoint.online.api_key";
+pub const AIRPLANE_API_KEY: &str = "ai.endpoint.airplane.api_key";
 const ONLINE_API_KEY_CONFIGURED: &str = "ai.endpoint.online.api_key_configured";
+const AIRPLANE_API_KEY_CONFIGURED: &str = "ai.endpoint.airplane.api_key_configured";
 const DEFAULTS: &[(&str, &str)] = &[
     ("editor.default_mode", "markdown"),
     ("editor.diff_view_style", "inline"),
@@ -15,9 +17,18 @@ const DEFAULTS: &[(&str, &str)] = &[
     ("editor.hide_unchanged_regions", "false"),
     ("ai.endpoint.online.url", ""),
     ("ai.endpoint.online.model", ""),
+    ("ai.endpoint.online.title_model", ""),
+    ("ai.endpoint.online.image_model", ""),
+    ("ai.endpoint.online.chat_supports_tools", ""),
+    ("ai.endpoint.online.image_supports_vision", ""),
     (ONLINE_API_KEY, ""),
     ("ai.endpoint.airplane.url", ""),
     ("ai.endpoint.airplane.model", ""),
+    ("ai.endpoint.airplane.title_model", ""),
+    ("ai.endpoint.airplane.image_model", ""),
+    ("ai.endpoint.airplane.chat_supports_tools", ""),
+    ("ai.endpoint.airplane.image_supports_vision", ""),
+    (AIRPLANE_API_KEY, ""),
     ("ai.default_model", ""),
     ("ai.title_model", ""),
     ("ai.image_model", ""),
@@ -37,9 +48,14 @@ pub fn get(conn: &Connection, key: &str) -> EngineResult<Option<String>> {
 }
 
 pub fn get_effective(conn: &Connection, key: &str) -> EngineResult<Option<String>> {
-    if key == ONLINE_API_KEY {
+    if key == ONLINE_API_KEY || key == AIRPLANE_API_KEY {
+        let configured_key = if key == ONLINE_API_KEY {
+            ONLINE_API_KEY_CONFIGURED
+        } else {
+            AIRPLANE_API_KEY_CONFIGURED
+        };
         return Ok(Some(
-            get(conn, ONLINE_API_KEY_CONFIGURED)?
+            get(conn, configured_key)?
                 .filter(|value| value == "true")
                 .map_or_else(String::new, |_| "configured".to_string()),
         ));
@@ -69,6 +85,8 @@ pub fn list_effective(conn: &Connection) -> EngineResult<BTreeMap<String, String
         if !value.key.starts_with("app.")
             && value.key != ONLINE_API_KEY
             && value.key != ONLINE_API_KEY_CONFIGURED
+            && value.key != AIRPLANE_API_KEY
+            && value.key != AIRPLANE_API_KEY_CONFIGURED
         {
             values.insert(value.key, value.value);
         }
@@ -76,6 +94,9 @@ pub fn list_effective(conn: &Connection) -> EngineResult<BTreeMap<String, String
     if get(conn, ONLINE_API_KEY_CONFIGURED)?.as_deref() == Some("true") {
         values.insert(ONLINE_API_KEY.to_string(), "configured".to_string());
     }
+    if get(conn, AIRPLANE_API_KEY_CONFIGURED)?.as_deref() == Some("true") {
+        values.insert(AIRPLANE_API_KEY.to_string(), "configured".to_string());
+    }
     Ok(values)
 }
 

crates/bds-core/tests/chat.rs

@@ -233,6 +233,33 @@ fn malformed_stream_and_provider_error_keep_reopenable_user_turn() {
     }
 }
 
+#[test]
+fn non_success_response_preserves_provider_error_detail() {
+    let (_root, db, project_id, data_dir) = setup();
+    let conversation = chat::create_conversation(db.conn(), Some("plain-model")).unwrap();
+    let (url, server) = serve(vec![MockResponse::status(
+        400,
+        "application/json",
+        "{\"error\":{\"message\":\"tokenizer.chat_template is not set\"}}",
+    )]);
+
+    let error = chat::send_chat_message(
+        db.conn(),
+        &data_dir,
+        &project_id,
+        false,
+        &conversation.id,
+        "Hello",
+        options(url, |_| {}),
+    )
+    .unwrap_err()
+    .to_string();
+    server.join().unwrap();
+
+    assert!(error.contains("400"));
+    assert!(error.contains("tokenizer.chat_template is not set"));
+}
+
 #[test]
 fn cancellation_persists_only_received_content_and_never_runs_later_work() {
     let (_root, db, project_id, data_dir) = setup();

crates/bds-server/src/tui.rs

@@ -1871,63 +1871,100 @@ impl TuiApp {
                 ),
             ],
             SettingSection::Ai => vec![
-                (
-                    "Airplane mode",
-                    "ai.airplane_mode",
-                    FieldKind::Bool,
-                    self.airplane.to_string(),
-                ),
                 (
                     "Online endpoint URL",
                     "ai.endpoint.online.url",
                     FieldKind::Text,
-                    ai.online_endpoint.url,
+                    ai.online.endpoint.url,
                 ),
                 (
-                    "Online endpoint model",
+                    "Online chat model",
                     "ai.endpoint.online.model",
                     FieldKind::Text,
-                    ai.online_endpoint.model,
+                    ai.online.endpoint.model,
                 ),
                 (
                     "Online API key",
                     "ai.endpoint.online.api_key",
                     FieldKind::ReadOnly,
-                    if ai.online_endpoint.api_key_configured {
+                    if ai.online.endpoint.api_key_configured {
                         "Configured in the system keychain".into()
                     } else {
                         "Configure in the desktop application".into()
                     },
                 ),
+                (
+                    "Online title model",
+                    "ai.endpoint.online.title_model",
+                    FieldKind::Text,
+                    ai.online.title_model.unwrap_or_default(),
+                ),
+                (
+                    "Online image model",
+                    "ai.endpoint.online.image_model",
+                    FieldKind::Text,
+                    ai.online.image_model.unwrap_or_default(),
+                ),
+                (
+                    "Online chat supports tools",
+                    "ai.endpoint.online.chat_supports_tools",
+                    FieldKind::Bool,
+                    ai.online.chat_supports_tools.unwrap_or(false).to_string(),
+                ),
+                (
+                    "Online image supports vision",
+                    "ai.endpoint.online.image_supports_vision",
+                    FieldKind::Bool,
+                    ai.online.image_supports_vision.unwrap_or(false).to_string(),
+                ),
                 (
                     "Airplane endpoint URL",
                     "ai.endpoint.airplane.url",
                     FieldKind::Text,
-                    ai.airplane_endpoint.url,
+                    ai.airplane.endpoint.url,
                 ),
                 (
-                    "Airplane endpoint model",
+                    "Airplane chat model",
                     "ai.endpoint.airplane.model",
                     FieldKind::Text,
-                    ai.airplane_endpoint.model,
+                    ai.airplane.endpoint.model,
                 ),
                 (
-                    "Default model",
-                    "ai.default_model",
-                    FieldKind::Text,
-                    ai.default_model.unwrap_or_default(),
+                    "Airplane API key",
+                    "ai.endpoint.airplane.api_key",
+                    FieldKind::ReadOnly,
+                    if ai.airplane.endpoint.api_key_configured {
+                        "Configured in the system keychain".into()
+                    } else {
+                        "Configure in the desktop application".into()
+                    },
                 ),
                 (
-                    "Title model",
-                    "ai.title_model",
+                    "Airplane title model",
+                    "ai.endpoint.airplane.title_model",
                     FieldKind::Text,
-                    ai.title_model.unwrap_or_default(),
+                    ai.airplane.title_model.unwrap_or_default(),
                 ),
                 (
-                    "Image model",
-                    "ai.image_model",
+                    "Airplane image model",
+                    "ai.endpoint.airplane.image_model",
                     FieldKind::Text,
-                    ai.image_model.unwrap_or_default(),
+                    ai.airplane.image_model.unwrap_or_default(),
+                ),
+                (
+                    "Airplane chat supports tools",
+                    "ai.endpoint.airplane.chat_supports_tools",
+                    FieldKind::Bool,
+                    ai.airplane.chat_supports_tools.unwrap_or(false).to_string(),
+                ),
+                (
+                    "Airplane image supports vision",
+                    "ai.endpoint.airplane.image_supports_vision",
+                    FieldKind::Bool,
+                    ai.airplane
+                        .image_supports_vision
+                        .unwrap_or(false)
+                        .to_string(),
                 ),
                 (
                     "System prompt",
@@ -2056,14 +2093,8 @@ impl TuiApp {
                     || key.starts_with("publishing.")
                     || key.starts_with("ai.endpoint.")
                     || key.starts_with("mcp.agent.")
-                    || matches!(
-                        key,
-                        "ai.airplane_mode"
-                            | "ai.default_model"
-                            | "ai.title_model"
-                            | "ai.image_model"
-                            | "ai.system_prompt"
-                    ) {
+                    || key == "ai.system_prompt"
+                {
                     fallback
                 } else {
                     engine::settings::get_effective(db.conn(), key)?.unwrap_or(fallback)
@@ -2304,25 +2335,27 @@ impl TuiApp {
                         kind,
                         url: url.into(),
                         model: model.into(),
-                        api_key: if kind == AiEndpointKind::Online {
-                            engine::ai::load_endpoint_api_key(kind)?
-                        } else {
-                            None
-                        },
+                        api_key: engine::ai::load_endpoint_api_key(kind)?,
                     },
                 )?;
             }
+            let prefix = format!("ai.endpoint.{}", kind.as_str());
+            engine::ai::save_model_preferences(
+                db.conn(),
+                kind,
+                optional_str(self.setting_value(&format!("{prefix}.title_model"))),
+                optional_str(self.setting_value(&format!("{prefix}.image_model"))),
+                Some(
+                    self.setting_value(&format!("{prefix}.chat_supports_tools"))
+                        .eq_ignore_ascii_case("true"),
+                ),
+                Some(
+                    self.setting_value(&format!("{prefix}.image_supports_vision"))
+                        .eq_ignore_ascii_case("true"),
+                ),
+            )?;
         }
-        engine::ai::save_model_preferences(
-            db.conn(),
-            optional_str(self.setting_value("ai.default_model")),
-            optional_str(self.setting_value("ai.title_model")),
-            optional_str(self.setting_value("ai.image_model")),
-            self.setting_value("ai.system_prompt"),
-        )?;
-        self.airplane = self
-            .setting_value("ai.airplane_mode")
-            .eq_ignore_ascii_case("true");
+        engine::ai::save_system_prompt(db.conn(), self.setting_value("ai.system_prompt"))?;
         Ok(())
     }
 
@@ -2496,15 +2529,20 @@ fn setting_field_label(locale: UiLocale, key: &str, fallback: &str) -> String {
         "meta.blogmark_category" => "settings.blogmarkCategory",
         "meta.categories" => "editor.categories",
         "meta.category_editing" => "tui.categoryEditing",
-        "ai.airplane_mode" => "settings.offlineMode",
         "ai.endpoint.online.url" => "settings.onlineEndpointUrl",
-        "ai.endpoint.online.model" => "settings.onlineEndpointModel",
+        "ai.endpoint.online.model" => "settings.onlineChatModel",
         "ai.endpoint.online.api_key" => "settings.onlineApiKey",
+        "ai.endpoint.online.title_model" => "settings.onlineTitleModel",
+        "ai.endpoint.online.image_model" => "settings.onlineImageModel",
+        "ai.endpoint.online.chat_supports_tools" => "settings.onlineModelSupportsTools",
+        "ai.endpoint.online.image_supports_vision" => "settings.onlineModelSupportsVision",
         "ai.endpoint.airplane.url" => "settings.airplaneEndpointUrl",
-        "ai.endpoint.airplane.model" => "settings.airplaneEndpointModel",
-        "ai.default_model" => "settings.defaultModel",
-        "ai.title_model" => "settings.titleModel",
-        "ai.image_model" => "settings.imageAnalysisModel",
+        "ai.endpoint.airplane.model" => "settings.airplaneChatModel",
+        "ai.endpoint.airplane.api_key" => "settings.airplaneApiKey",
+        "ai.endpoint.airplane.title_model" => "settings.airplaneTitleModel",
+        "ai.endpoint.airplane.image_model" => "settings.airplaneImageModel",
+        "ai.endpoint.airplane.chat_supports_tools" => "settings.airplaneModelSupportsTools",
+        "ai.endpoint.airplane.image_supports_vision" => "settings.airplaneModelSupportsVision",
         "ai.system_prompt" => "settings.systemPrompt",
         "technology.runtime" => "tui.settingRuntime",
         "meta.semantic_similarity_enabled" => "settings.semanticSimilarityEnabled",
@@ -4083,16 +4121,9 @@ mod tests {
             .find(|field| field.key == "ai.endpoint.airplane.model")
             .unwrap()
             .value = "local-model".into();
-        remote
-            .settings_fields
-            .iter_mut()
-            .find(|field| field.key == "ai.default_model")
-            .unwrap()
-            .value = "local-model".into();
         remote.save_settings().unwrap();
         let ai = engine::ai::load_ai_settings(fixture.db().conn(), false).unwrap();
-        assert_eq!(ai.airplane_endpoint.model, "local-model");
-        assert_eq!(ai.default_model.as_deref(), Some("local-model"));
+        assert_eq!(ai.airplane.endpoint.model, "local-model");
     }
 
     #[test]

crates/bds-ui/src/app.rs

@@ -47,7 +47,8 @@ use crate::views::{
     post_editor::{LinkedMediaItem, PostEditorMsg, PostEditorState, ResolvedPostLink},
     script_editor::{ScriptEditorMsg, ScriptEditorState},
     settings_view::{
-        AiModelOption, SettingsCategoryRow, SettingsMsg, SettingsViewState, default_category_rows,
+        AiModeViewState, AiModelOption, SettingsCategoryRow, SettingsMsg, SettingsViewState,
+        default_category_rows,
     },
     site_validation::SiteValidationState,
     tags_view::{self, TagsMsg, TagsSection, TagsViewState},
@@ -1501,13 +1502,14 @@ impl BdsApp {
                 conversation_id,
                 result,
             } => {
+                let locale = self.ui_locale;
                 if let Some(state) = self.chat_editors.get_mut(&conversation_id) {
                     state.streaming = false;
                     state.clear_streaming();
                     state.active_tool = None;
                     match result {
                         Ok(_) => state.error = None,
-                        Err(error) => state.error = Some(error),
+                        Err(error) => state.error = Some(localize_chat_error(locale, &error)),
                     }
                     if let Some(db) = &self.db {
                         state.set_messages(
@@ -2572,6 +2574,22 @@ impl BdsApp {
             // ── Settings ──
             Message::SetOfflineMode(mode) => {
                 self.offline_mode = mode;
+                let models = self.chat_model_options();
+                let selected = self.db.as_ref().and_then(|db| {
+                    ai::load_ai_settings(db.conn(), mode)
+                        .ok()
+                        .map(|settings| settings.active().endpoint.model.clone())
+                        .filter(|model| !model.trim().is_empty())
+                });
+                for (id, state) in &mut self.chat_editors {
+                    state.model_options = models.clone();
+                    if let Some(model) = selected.as_ref() {
+                        state.conversation.model = Some(model.clone());
+                        if let Some(db) = &self.db {
+                            let _ = engine::chat::set_conversation_model(db.conn(), id, model);
+                        }
+                    }
+                }
                 self.sync_menu_state();
                 Task::none()
             }
@@ -3546,62 +3564,33 @@ impl BdsApp {
 
     fn chat_model_options(&self) -> Vec<ChatModelChoice> {
         let mut models = self
-            .db
+            .settings_state
             .as_ref()
-            .and_then(|db| engine::chat::list_models(db.conn()).ok())
-            .into_iter()
-            .flatten()
-            .map(|model| {
-                let context = model.context_window.div_ceil(1_000).to_string();
-                let output = model.max_output_tokens.div_ceil(1_000).to_string();
-                let capability = t(
-                    self.ui_locale,
-                    if model.supports_tools {
-                        "chat.model.tools"
-                    } else {
-                        "chat.model.textOnly"
-                    },
-                );
-                ChatModelChoice {
-                    id: model.id,
-                    label: tw(
-                        self.ui_locale,
-                        "chat.model.option",
-                        &[
-                            ("provider", &model.provider),
-                            ("name", &model.name),
-                            ("context", &context),
-                            ("output", &output),
-                            ("capability", &capability),
-                        ],
-                    ),
-                }
+            .map(|state| {
+                let mode = if self.offline_mode {
+                    &state.airplane_ai
+                } else {
+                    &state.online_ai
+                };
+                mode.model_options
+                    .iter()
+                    .map(|model| ChatModelChoice {
+                        id: model.id.clone(),
+                        label: model.label.clone(),
+                    })
+                    .collect::<Vec<_>>()
             })
-            .collect::<Vec<_>>();
+            .unwrap_or_default();
         if let Some(db) = &self.db
             && let Ok(settings) = ai::load_ai_settings(db.conn(), self.offline_mode)
         {
-            if let Some(model) = settings.default_model
-                && !models.iter().any(|choice| choice.id == model)
-            {
+            let model = settings.active().endpoint.model.clone();
+            if !model.trim().is_empty() && !models.iter().any(|choice| choice.id == model) {
                 models.push(ChatModelChoice {
                     id: model.clone(),
                     label: model,
                 });
             }
-            let endpoint_model = if self.offline_mode {
-                settings.airplane_endpoint.model
-            } else {
-                settings.online_endpoint.model
-            };
-            if !endpoint_model.trim().is_empty()
-                && !models.iter().any(|choice| choice.id == endpoint_model)
-            {
-                models.push(ChatModelChoice {
-                    id: endpoint_model.clone(),
-                    label: endpoint_model,
-                });
-            }
         }
         models.sort_by(|left, right| left.label.cmp(&right.label));
         models.dedup_by(|left, right| left.id == right.id);
@@ -3610,10 +3599,17 @@ impl BdsApp {
 
     fn create_chat_conversation(&mut self) -> Task<Message> {
         let model = self
-            .chat_model_options()
-            .into_iter()
-            .next()
-            .map(|choice| choice.id);
+            .db
+            .as_ref()
+            .and_then(|db| ai::load_ai_settings(db.conn(), self.offline_mode).ok())
+            .map(|settings| settings.active().endpoint.model.clone())
+            .filter(|model| !model.trim().is_empty())
+            .or_else(|| {
+                self.chat_model_options()
+                    .into_iter()
+                    .next()
+                    .map(|choice| choice.id)
+            });
         let title = model.as_deref().map_or_else(
             || t(self.ui_locale, "chat.new"),
             |model| tw(self.ui_locale, "chat.newWithModel", &[("model", model)]),
@@ -3735,6 +3731,7 @@ impl BdsApp {
                     conversation_id,
                     message,
                 } => {
+                    let message = localize_chat_error(self.ui_locale, &message);
                     if let Some(state) = self.chat_editors.get_mut(&conversation_id) {
                         state.error = Some(message);
                     }
@@ -3939,15 +3936,15 @@ impl BdsApp {
                     .iter()
                     .any(|tab| tab.tab_type == TabType::Settings)
                 {
-                    self.settings_state = None;
-                    if let Some(tab) = self
-                        .tabs
-                        .iter()
-                        .find(|tab| tab.tab_type == TabType::Settings)
-                        .cloned()
-                    {
-                        self.load_editor_for_tab(&tab);
+                    let active_section = self
+                        .settings_state
+                        .as_ref()
+                        .and_then(|state| state.active_section.clone());
+                    let mut state = self.hydrate_settings_state();
+                    if let Some(section) = active_section {
+                        state.focus_section(section);
                     }
+                    self.settings_state = Some(state);
                 }
                 false
             }
@@ -6822,28 +6819,8 @@ impl BdsApp {
                 state.system_prompt = iced::widget::text_editor::Content::with_text(&setting.value);
             }
             if let Ok(ai_settings) = ai::load_ai_settings(db.conn(), self.offline_mode) {
-                state.online_endpoint_url = ai_settings.online_endpoint.url;
-                state.online_endpoint_model = ai_settings.online_endpoint.model;
-                state.online_api_key_configured = ai_settings.online_endpoint.api_key_configured;
-                if !state.online_endpoint_model.is_empty() {
-                    state.online_model_options = vec![AiModelOption {
-                        id: state.online_endpoint_model.clone(),
-                        label: state.online_endpoint_model.clone(),
-                        supports_vision: false,
-                    }];
-                }
-                state.airplane_endpoint_url = ai_settings.airplane_endpoint.url;
-                state.airplane_endpoint_model = ai_settings.airplane_endpoint.model;
-                if !state.airplane_endpoint_model.is_empty() {
-                    state.airplane_model_options = vec![AiModelOption {
-                        id: state.airplane_endpoint_model.clone(),
-                        label: state.airplane_endpoint_model.clone(),
-                        supports_vision: false,
-                    }];
-                }
-                state.default_model = ai_settings.default_model.unwrap_or_default();
-                state.title_model = ai_settings.title_model.unwrap_or_default();
-                state.image_model = ai_settings.image_model.unwrap_or_default();
+                state.online_ai = Self::ai_mode_view_state(ai_settings.online);
+                state.airplane_ai = Self::ai_mode_view_state(ai_settings.airplane);
             }
             state.mcp_enabled = engine::settings::get_effective(db.conn(), "mcp.http.enabled")
                 .ok()
@@ -6874,7 +6851,6 @@ impl BdsApp {
                 })
                 .collect();
         }
-        state.offline_mode = self.offline_mode;
         state
     }
 
@@ -7507,51 +7483,58 @@ impl BdsApp {
                 state.ssh_username.clear();
                 state.ssh_remote_path.clear();
             }
-            SettingsMsg::OfflineModeChanged(b) => {
-                state.offline_mode = b;
-                return Task::done(Message::SetOfflineMode(b));
+            SettingsMsg::AiEndpointUrlChanged(kind, value) => {
+                Self::ai_mode_state_mut(state, kind).endpoint_url = value;
             }
-            SettingsMsg::OnlineEndpointUrlChanged(value) => {
-                state.online_endpoint_url = value;
+            SettingsMsg::AiApiKeyChanged(kind, value) => {
+                Self::ai_mode_state_mut(state, kind).api_key_input = value;
             }
-            SettingsMsg::OnlineEndpointModelChanged(value) => {
-                state.online_endpoint_model = value;
+            SettingsMsg::AiChatModelChanged(kind, value) => {
+                let mode = Self::ai_mode_state_mut(state, kind);
+                mode.chat_supports_tools = mode
+                    .model_options
+                    .iter()
+                    .find(|option| option.id == value)
+                    .is_some_and(|option| option.supports_tools);
+                mode.chat_model = value;
             }
-            SettingsMsg::OnlineApiKeyChanged(value) => {
-                state.online_api_key_input = value;
+            SettingsMsg::AiTitleModelChanged(kind, value) => {
+                Self::ai_mode_state_mut(state, kind).title_model = value;
             }
-            SettingsMsg::AirplaneEndpointUrlChanged(value) => {
-                state.airplane_endpoint_url = value;
+            SettingsMsg::AiImageModelChanged(kind, value) => {
+                let mode = Self::ai_mode_state_mut(state, kind);
+                mode.image_supports_vision = mode
+                    .model_options
+                    .iter()
+                    .find(|option| option.id == value)
+                    .is_some_and(|option| option.supports_vision);
+                mode.image_model = value;
             }
-            SettingsMsg::AirplaneEndpointModelChanged(value) => {
-                state.airplane_endpoint_model = value;
+            SettingsMsg::AiToolsChanged(kind, value) => {
+                Self::ai_mode_state_mut(state, kind).chat_supports_tools = value;
             }
-            SettingsMsg::DefaultModelChanged(value) => {
-                state.default_model = value;
+            SettingsMsg::AiVisionChanged(kind, value) => {
+                Self::ai_mode_state_mut(state, kind).image_supports_vision = value;
             }
-            SettingsMsg::TitleModelChanged(value) => {
-                state.title_model = value;
-            }
-            SettingsMsg::ImageModelChanged(value) => {
-                state.image_model = value;
-            }
-            SettingsMsg::RefreshOnlineModels => {
+            SettingsMsg::RefreshAiModels(kind) => {
                 if let Some(db) = &self.db {
-                    match Self::refresh_ai_models(db, state, AiEndpointKind::Online) {
-                        Ok(()) => {
-                            self.notify(ToastLevel::Success, &t(self.ui_locale, "editor.saved"))
-                        }
-                        Err(error) => self.notify_operation_failed("common.save", error),
+                    match Self::refresh_ai_models(db, state, kind) {
+                        Ok(()) => self.notify(
+                            ToastLevel::Success,
+                            &t(self.ui_locale, "settings.modelsLoaded"),
+                        ),
+                        Err(error) => self.notify_operation_failed("settings.refreshModels", error),
                     }
                 }
             }
-            SettingsMsg::RefreshAirplaneModels => {
+            SettingsMsg::TestAi(kind) => {
                 if let Some(db) = &self.db {
-                    match Self::refresh_ai_models(db, state, AiEndpointKind::Airplane) {
-                        Ok(()) => {
-                            self.notify(ToastLevel::Success, &t(self.ui_locale, "editor.saved"))
-                        }
-                        Err(error) => self.notify_operation_failed("common.save", error),
+                    match Self::test_ai_settings(db, state, kind) {
+                        Ok(()) => self.notify(
+                            ToastLevel::Success,
+                            &t(self.ui_locale, "settings.testChatSuccess"),
+                        ),
+                        Err(error) => self.notify_operation_failed("settings.testChat", error),
                     }
                 }
             }
@@ -8160,37 +8143,14 @@ impl BdsApp {
                 }
             }
             TabType::Settings if self.settings_state.is_none() => {
-                let mut state = SettingsViewState::default();
-                if let Some(ref project) = self.active_project {
-                    state.project_name = project.name.clone();
-                    state.project_description = iced::widget::text_editor::Content::with_text(
-                        &project.description.clone().unwrap_or_default(),
-                    );
-                    state.data_path = project.data_path.clone().unwrap_or_default();
-                }
-                if let Some(ref data_dir) = self.data_dir {
-                    if let Ok(meta) = engine::meta::read_project_json(data_dir) {
-                        state.public_url = meta.public_url.unwrap_or_default();
-                        state.default_author = meta.default_author.unwrap_or_default();
-                        state.max_posts_per_page = meta.max_posts_per_page.to_string();
-                        state.image_import_concurrency = meta.image_import_concurrency.to_string();
-                    }
-                    if let Ok(pub_prefs) = engine::meta::read_publishing_json(data_dir) {
-                        state.ssh_host = pub_prefs.ssh_host.unwrap_or_default();
-                        state.ssh_username = pub_prefs.ssh_user.unwrap_or_default();
-                        state.ssh_remote_path = pub_prefs.ssh_remote_path.unwrap_or_default();
-                        state.ssh_mode = format!("{:?}", pub_prefs.ssh_mode).to_lowercase();
-                    }
-                }
-                state.offline_mode = self.offline_mode;
-                self.settings_state = Some(state);
+                self.settings_state = Some(self.hydrate_settings_state());
             }
             _ => {}
         }
     }
 
     fn refresh_ai_models(
-        db: &Database,
+        _db: &Database,
         state: &mut SettingsViewState,
         kind: AiEndpointKind,
     ) -> Result<(), String> {
@@ -8201,92 +8161,122 @@ impl BdsApp {
             .map(|model| AiModelOption {
                 id: model.id,
                 label: model.name,
+                supports_tools: model.supports_tools,
                 supports_vision: model.supports_vision,
             })
             .collect::<Vec<_>>();
-        match kind {
-            AiEndpointKind::Online => state.online_model_options = options,
-            AiEndpointKind::Airplane => state.airplane_model_options = options,
+        Self::ai_mode_state_mut(state, kind).model_options = options;
+        Ok(())
+    }
+
+    fn test_ai_settings(
+        _db: &Database,
+        state: &SettingsViewState,
+        kind: AiEndpointKind,
+    ) -> Result<(), String> {
+        let endpoint = Self::compose_ai_endpoint(state, kind)?;
+        let mode = Self::ai_mode_state(state, kind);
+        let models = [&mode.chat_model, &mode.title_model, &mode.image_model]
+            .into_iter()
+            .filter(|model| !model.trim().is_empty())
+            .collect::<std::collections::BTreeSet<_>>();
+        if models.is_empty() {
+            return Err("select at least one model".to_string());
+        }
+        for model in models {
+            ai::test_chat(&endpoint, model).map_err(|error| error.to_string())?;
         }
-        let _ = db;
         Ok(())
     }
 
     fn save_ai_settings_state(db: &Database, state: &mut SettingsViewState) -> Result<(), String> {
-        if Self::endpoint_has_configuration(state, AiEndpointKind::Online) {
-            let online_endpoint = Self::compose_ai_endpoint(state, AiEndpointKind::Online)?;
-            ai::test_endpoint(&online_endpoint).map_err(|error| error.to_string())?;
-            ai::save_endpoint(db.conn(), &online_endpoint).map_err(|error| error.to_string())?;
-            state.online_api_key_input.clear();
-            state.online_api_key_configured = true;
+        for kind in [AiEndpointKind::Online, AiEndpointKind::Airplane] {
+            if Self::endpoint_has_configuration(state, kind) {
+                let endpoint = Self::compose_ai_endpoint(state, kind)?;
+                ai::save_endpoint(db.conn(), &endpoint).map_err(|error| error.to_string())?;
+            }
+            let mode = Self::ai_mode_state(state, kind);
+            ai::save_model_preferences(
+                db.conn(),
+                kind,
+                (!mode.title_model.trim().is_empty()).then_some(mode.title_model.as_str()),
+                (!mode.image_model.trim().is_empty()).then_some(mode.image_model.as_str()),
+                Some(mode.chat_supports_tools),
+                Some(mode.image_supports_vision),
+            )
+            .map_err(|error| error.to_string())?;
         }
-        if Self::endpoint_has_configuration(state, AiEndpointKind::Airplane) {
-            let airplane_endpoint = Self::compose_ai_endpoint(state, AiEndpointKind::Airplane)?;
-            ai::test_endpoint(&airplane_endpoint).map_err(|error| error.to_string())?;
-            ai::save_endpoint(db.conn(), &airplane_endpoint).map_err(|error| error.to_string())?;
+        ai::save_system_prompt(db.conn(), &state.system_prompt.text())
+            .map_err(|error| error.to_string())?;
+        for kind in [AiEndpointKind::Online, AiEndpointKind::Airplane] {
+            let mode = Self::ai_mode_state_mut(state, kind);
+            if !mode.api_key_input.trim().is_empty() {
+                mode.api_key_configured = true;
+            }
+            mode.api_key_input.clear();
         }
-        ai::save_model_preferences(
-            db.conn(),
-            (!state.default_model.trim().is_empty()).then_some(state.default_model.as_str()),
-            (!state.title_model.trim().is_empty()).then_some(state.title_model.as_str()),
-            (!state.image_model.trim().is_empty()).then_some(state.image_model.as_str()),
-            &state.system_prompt.text(),
-        )
-        .map_err(|error| error.to_string())?;
         Ok(())
     }
 
     fn endpoint_has_configuration(state: &SettingsViewState, kind: AiEndpointKind) -> bool {
-        match kind {
-            AiEndpointKind::Online => {
-                !state.online_endpoint_url.trim().is_empty()
-                    || !state.online_endpoint_model.trim().is_empty()
-                    || !state.online_api_key_input.trim().is_empty()
-                    || state.online_api_key_configured
-            }
-            AiEndpointKind::Airplane => {
-                !state.airplane_endpoint_url.trim().is_empty()
-                    || !state.airplane_endpoint_model.trim().is_empty()
-            }
-        }
+        let mode = Self::ai_mode_state(state, kind);
+        !mode.endpoint_url.trim().is_empty()
+            || !mode.chat_model.trim().is_empty()
+            || !mode.api_key_input.trim().is_empty()
+            || mode.api_key_configured
     }
 
     fn compose_ai_endpoint(
         state: &SettingsViewState,
         kind: AiEndpointKind,
     ) -> Result<AiEndpointConfig, String> {
-        let (url, model, configured) = match kind {
-            AiEndpointKind::Online => (
-                state.online_endpoint_url.trim().to_string(),
-                state.online_endpoint_model.trim().to_string(),
-                state.online_api_key_configured,
-            ),
-            AiEndpointKind::Airplane => (
-                state.airplane_endpoint_url.trim().to_string(),
-                state.airplane_endpoint_model.trim().to_string(),
-                false,
-            ),
-        };
-        let api_key = if kind == AiEndpointKind::Online {
-            let input = state.online_api_key_input.trim();
-            if !input.is_empty() {
-                Some(input.to_string())
-            } else if configured {
-                ai::load_endpoint_api_key(kind).map_err(|error| error.to_string())?
-            } else {
-                None
-            }
+        let mode = Self::ai_mode_state(state, kind);
+        let input = mode.api_key_input.trim();
+        let api_key = if !input.is_empty() {
+            Some(input.to_string())
+        } else if mode.api_key_configured {
+            ai::load_endpoint_api_key(kind).map_err(|error| error.to_string())?
         } else {
             None
         };
         Ok(AiEndpointConfig {
             kind,
-            url,
-            model,
+            url: mode.endpoint_url.trim().to_string(),
+            model: mode.chat_model.trim().to_string(),
             api_key,
         })
     }
 
+    fn ai_mode_state(state: &SettingsViewState, kind: AiEndpointKind) -> &AiModeViewState {
+        match kind {
+            AiEndpointKind::Online => &state.online_ai,
+            AiEndpointKind::Airplane => &state.airplane_ai,
+        }
+    }
+
+    fn ai_mode_state_mut(
+        state: &mut SettingsViewState,
+        kind: AiEndpointKind,
+    ) -> &mut AiModeViewState {
+        match kind {
+            AiEndpointKind::Online => &mut state.online_ai,
+            AiEndpointKind::Airplane => &mut state.airplane_ai,
+        }
+    }
+
+    fn ai_mode_view_state(settings: ai::AiModeSettings) -> AiModeViewState {
+        AiModeViewState {
+            endpoint_url: settings.endpoint.url,
+            chat_model: settings.endpoint.model,
+            title_model: settings.title_model.unwrap_or_default(),
+            image_model: settings.image_model.unwrap_or_default(),
+            api_key_configured: settings.endpoint.api_key_configured,
+            chat_supports_tools: settings.chat_supports_tools.unwrap_or(false),
+            image_supports_vision: settings.image_supports_vision.unwrap_or(false),
+            ..Default::default()
+        }
+    }
+
     fn ensure_preview_server(&mut self) -> Result<(), String> {
         let Some(project) = self.active_project.as_ref() else {
             return Err(t(self.ui_locale, "engine.generateSiteNoProject"));
@@ -8995,6 +8985,16 @@ fn language_label(locale: UiLocale, code: &str) -> String {
     }
 }
 
+fn localize_chat_error(locale: UiLocale, error: &str) -> String {
+    if error.contains("AI unavailable - configure") {
+        t(locale, "chat.unavailable.guidance")
+    } else if let Some(detail) = error.strip_prefix("parse error: AI provider returned ") {
+        format!("{} {detail}", t(locale, "chat.providerError"))
+    } else {
+        error.to_string()
+    }
+}
+
 fn remote_error_closes_connection(code: &str) -> bool {
     code == "connection_lost"
 }
@@ -9003,10 +9003,11 @@ fn remote_error_closes_connection(code: &str) -> bool {
 mod tests {
     use super::{
         BdsApp, Message, POST_AUTO_SAVE_DELAY_MS, PersistedMediaState, PersistedPostState,
-        PostStatus, SettingsMsg, month_abbreviation, persist_media_editor_state_impl,
-        persist_post_editor_preview_state_impl, persist_post_editor_state_impl,
-        remote_error_closes_connection, save_editor_settings_state_impl,
-        save_script_editor_state_impl, save_template_editor_state_impl,
+        PostStatus, SettingsMsg, localize_chat_error, month_abbreviation,
+        persist_media_editor_state_impl, persist_post_editor_preview_state_impl,
+        persist_post_editor_state_impl, remote_error_closes_connection,
+        save_editor_settings_state_impl, save_script_editor_state_impl,
+        save_template_editor_state_impl,
     };
     use crate::i18n::t;
     use crate::platform::menu::MenuAction;
@@ -9020,7 +9021,7 @@ mod tests {
     use crate::views::modal;
     use crate::views::post_editor::{PostEditorMsg, PostEditorState};
     use crate::views::script_editor::{ScriptEditorMsg, ScriptEditorState};
-    use crate::views::settings_view::SettingsViewState;
+    use crate::views::settings_view::{AiModeViewState, SettingsSection, SettingsViewState};
     use crate::views::template_editor::TemplateEditorState;
     use bds_core::db::Database;
     use bds_core::db::fts::ensure_fts_tables;
@@ -9029,7 +9030,7 @@ mod tests {
     use bds_core::engine::task::{TaskStatus, TaskStatus::*};
     use bds_core::engine::{ai, chat, media, menu, meta, post, script, template, wordpress_import};
     use bds_core::i18n::UiLocale;
-    use bds_core::model::{ChatRole, Project, ScriptKind, TemplateKind};
+    use bds_core::model::{ChatRole, DomainEvent, Project, ScriptKind, TemplateKind};
     use chrono::{Datelike, TimeZone};
     use std::io::{Read, Write};
     use std::net::TcpListener;
@@ -9922,8 +9923,11 @@ mod tests {
     fn save_ai_settings_allows_airplane_only_configuration() {
         let (db, _project, _tmp) = setup();
         let mut state = SettingsViewState {
-            airplane_endpoint_url: spawn_models_server(),
-            airplane_endpoint_model: "llama3.2".to_string(),
+            airplane_ai: AiModeViewState {
+                endpoint_url: spawn_models_server(),
+                chat_model: "llama3.2".to_string(),
+                ..Default::default()
+            },
             system_prompt: iced::widget::text_editor::Content::with_text("Use JSON only."),
             ..SettingsViewState::default()
         };
@@ -9931,13 +9935,86 @@ mod tests {
         BdsApp::save_ai_settings_state(&db, &mut state).unwrap();
 
         let settings = ai::load_ai_settings(db.conn(), false).unwrap();
-        assert!(settings.online_endpoint.url.is_empty());
-        assert!(settings.online_endpoint.model.is_empty());
-        assert_eq!(settings.airplane_endpoint.url, state.airplane_endpoint_url);
-        assert_eq!(settings.airplane_endpoint.model, "llama3.2");
+        assert!(settings.online.endpoint.url.is_empty());
+        assert!(settings.online.endpoint.model.is_empty());
+        assert_eq!(
+            settings.airplane.endpoint.url,
+            state.airplane_ai.endpoint_url
+        );
+        assert_eq!(settings.airplane.endpoint.model, "llama3.2");
         assert_eq!(settings.system_prompt.trim_end(), "Use JSON only.");
     }
 
+    #[test]
+    fn settings_change_rehydrates_ai_configuration() {
+        let (db, project, tmp) = setup();
+        bds_core::engine::settings::set(
+            db.conn(),
+            "ai.endpoint.online.url",
+            "http://127.0.0.1:9000/v1",
+        )
+        .unwrap();
+        bds_core::engine::settings::set(
+            db.conn(),
+            "ai.endpoint.online.model",
+            "mlx-community--gemma-4-12B-8bit",
+        )
+        .unwrap();
+        bds_core::engine::settings::set(db.conn(), "ai.endpoint.online.api_key_configured", "true")
+            .unwrap();
+        let mut app = make_app(db, project, &tmp);
+        app.tabs.push(Tab {
+            id: "settings".to_string(),
+            tab_type: TabType::Settings,
+            title: "Settings".to_string(),
+            is_transient: false,
+            is_dirty: false,
+        });
+        let mut settings_state = SettingsViewState::default();
+        settings_state.focus_section(SettingsSection::AI);
+        app.settings_state = Some(settings_state);
+
+        app.handle_domain_event(DomainEvent::SettingsChanged {
+            project_id: None,
+            key: "ai.endpoint.online.url".to_string(),
+        });
+
+        let state = app.settings_state.as_ref().unwrap();
+        assert_eq!(state.online_ai.endpoint_url, "http://127.0.0.1:9000/v1");
+        assert_eq!(
+            state.online_ai.chat_model,
+            "mlx-community--gemma-4-12B-8bit"
+        );
+        assert!(state.online_ai.api_key_configured);
+        assert_eq!(state.active_section, Some(SettingsSection::AI));
+    }
+
+    #[test]
+    fn ai_unavailable_chat_errors_are_localized() {
+        let raw = "validation error: AI unavailable - configure online endpoint in Settings";
+        for locale in UiLocale::all() {
+            assert_eq!(
+                localize_chat_error(*locale, raw),
+                t(*locale, "chat.unavailable.guidance")
+            );
+        }
+        let provider =
+            "parse error: AI provider returned 400 Bad Request: tokenizer.chat_template is not set";
+        for locale in UiLocale::all() {
+            assert_eq!(
+                localize_chat_error(*locale, provider),
+                format!(
+                    "{} 400 Bad Request: tokenizer.chat_template is not set",
+                    t(*locale, "chat.providerError")
+                )
+            );
+        }
+        assert_eq!(
+            localize_chat_error(UiLocale::En, "connection refused"),
+            "connection refused"
+        );
+    }
+
     #[test]
     fn media_editor_save_flow_persists_changes() {
         let (db, project, tmp) = setup();

crates/bds-ui/src/components/inputs.rs

@@ -201,6 +201,31 @@ pub fn labeled_input<'a, Message: Clone + 'a>(
     .into()
 }
 
+/// A labeled password input field.
+pub fn labeled_secure_input<'a, Message: Clone + 'a>(
+    label: &str,
+    placeholder: &str,
+    value: &str,
+    on_change: impl Fn(String) -> Message + 'a,
+) -> Element<'a, Message> {
+    column![
+        text(label.to_string())
+            .size(12)
+            .color(LABEL_COLOR)
+            .shaping(Shaping::Advanced),
+        text_input(placeholder, value)
+            .on_input(on_change)
+            .secure(true)
+            .size(14)
+            .padding([8, 10])
+            .width(Length::Fill)
+            .style(field_style),
+    ]
+    .spacing(6)
+    .width(Length::Fill)
+    .into()
+}
+
 /// A labeled select/dropdown field.
 pub fn labeled_select<'a, T, Message>(
     label: &str,

crates/bds-ui/src/views/settings_view.rs

@@ -2,6 +2,7 @@ use iced::widget::text::Shaping;
 use iced::widget::{button, column, container, row, scrollable, text, text_editor, text_input};
 use iced::{Alignment, Color, Element, Length};
 
+use bds_core::engine::ai::AiEndpointKind;
 use bds_core::i18n::UiLocale;
 
 use crate::app::Message;
@@ -12,6 +13,7 @@ use crate::i18n::{t, tw};
 pub struct AiModelOption {
     pub id: String,
     pub label: String,
+    pub supports_tools: bool,
     pub supports_vision: bool,
 }
 
@@ -21,6 +23,19 @@ impl std::fmt::Display for AiModelOption {
     }
 }
 
+#[derive(Debug, Clone, Default)]
+pub struct AiModeViewState {
+    pub endpoint_url: String,
+    pub chat_model: String,
+    pub title_model: String,
+    pub image_model: String,
+    pub api_key_input: String,
+    pub api_key_configured: bool,
+    pub model_options: Vec<AiModelOption>,
+    pub chat_supports_tools: bool,
+    pub image_supports_vision: bool,
+}
+
 /// Collapsible section identifiers per editor_settings.allium.
 #[derive(Debug, Clone, PartialEq, Eq, Hash)]
 pub enum SettingsSection {
@@ -136,18 +151,8 @@ pub struct SettingsViewState {
     pub ssh_username: String,
     pub ssh_remote_path: String,
     // AI
-    pub offline_mode: bool,
-    pub online_endpoint_url: String,
-    pub online_endpoint_model: String,
-    pub online_api_key_input: String,
-    pub online_api_key_configured: bool,
-    pub online_model_options: Vec<AiModelOption>,
-    pub airplane_endpoint_url: String,
-    pub airplane_endpoint_model: String,
-    pub airplane_model_options: Vec<AiModelOption>,
-    pub default_model: String,
-    pub title_model: String,
-    pub image_model: String,
+    pub online_ai: AiModeViewState,
+    pub airplane_ai: AiModeViewState,
     pub system_prompt: text_editor::Content,
     // Technology
     pub semantic_similarity_enabled: bool,
@@ -195,18 +200,8 @@ impl Clone for SettingsViewState {
             ssh_host: self.ssh_host.clone(),
             ssh_username: self.ssh_username.clone(),
             ssh_remote_path: self.ssh_remote_path.clone(),
-            offline_mode: self.offline_mode,
-            online_endpoint_url: self.online_endpoint_url.clone(),
-            online_endpoint_model: self.online_endpoint_model.clone(),
-            online_api_key_input: self.online_api_key_input.clone(),
-            online_api_key_configured: self.online_api_key_configured,
-            online_model_options: self.online_model_options.clone(),
-            airplane_endpoint_url: self.airplane_endpoint_url.clone(),
-            airplane_endpoint_model: self.airplane_endpoint_model.clone(),
-            airplane_model_options: self.airplane_model_options.clone(),
-            default_model: self.default_model.clone(),
-            title_model: self.title_model.clone(),
-            image_model: self.image_model.clone(),
+            online_ai: self.online_ai.clone(),
+            airplane_ai: self.airplane_ai.clone(),
             system_prompt: text_editor::Content::with_text(&self.system_prompt.text()),
             semantic_similarity_enabled: self.semantic_similarity_enabled,
             mcp_enabled: self.mcp_enabled,
@@ -252,18 +247,8 @@ impl Default for SettingsViewState {
             ssh_host: String::new(),
             ssh_username: String::new(),
             ssh_remote_path: String::new(),
-            offline_mode: false,
-            online_endpoint_url: String::new(),
-            online_endpoint_model: String::new(),
-            online_api_key_input: String::new(),
-            online_api_key_configured: false,
-            online_model_options: Vec::new(),
-            airplane_endpoint_url: String::new(),
-            airplane_endpoint_model: String::new(),
-            airplane_model_options: Vec::new(),
-            default_model: String::new(),
-            title_model: String::new(),
-            image_model: String::new(),
+            online_ai: AiModeViewState::default(),
+            airplane_ai: AiModeViewState::default(),
             system_prompt: text_editor::Content::new(),
             semantic_similarity_enabled: false,
             mcp_enabled: false,
@@ -343,17 +328,15 @@ pub enum SettingsMsg {
     SavePublishing,
     ClearPublishing,
     // AI
-    OfflineModeChanged(bool),
-    OnlineEndpointUrlChanged(String),
-    OnlineEndpointModelChanged(String),
-    OnlineApiKeyChanged(String),
-    RefreshOnlineModels,
-    AirplaneEndpointUrlChanged(String),
-    AirplaneEndpointModelChanged(String),
-    RefreshAirplaneModels,
-    DefaultModelChanged(String),
-    TitleModelChanged(String),
-    ImageModelChanged(String),
+    AiEndpointUrlChanged(AiEndpointKind, String),
+    AiApiKeyChanged(AiEndpointKind, String),
+    AiChatModelChanged(AiEndpointKind, String),
+    AiTitleModelChanged(AiEndpointKind, String),
+    AiImageModelChanged(AiEndpointKind, String),
+    AiToolsChanged(AiEndpointKind, bool),
+    AiVisionChanged(AiEndpointKind, bool),
+    RefreshAiModels(AiEndpointKind),
+    TestAi(AiEndpointKind),
     SystemPromptAction(text_editor::Action),
     SaveAi,
     ResetSystemPrompt,
@@ -786,104 +769,17 @@ fn section_content<'a>(state: &'a SettingsViewState, locale: UiLocale) -> Elemen
 }
 
 fn section_ai<'a>(state: &'a SettingsViewState, locale: UiLocale) -> Element<'a, Message> {
-    let active_model_options = if state.offline_mode {
-        &state.airplane_model_options
-    } else {
-        &state.online_model_options
-    };
-    let model_options = std::iter::once(AiModelOption {
-        id: String::new(),
-        label: t(locale, "tags.noTemplate"),
-        supports_vision: false,
-    })
-    .chain(active_model_options.iter().cloned())
-    .collect::<Vec<_>>();
-    let image_model_options = std::iter::once(AiModelOption {
-        id: String::new(),
-        label: t(locale, "tags.noTemplate"),
-        supports_vision: false,
-    })
-    .chain(
-        active_model_options
-            .iter()
-            .filter(|option| option.supports_vision)
-            .cloned(),
-    )
-    .collect::<Vec<_>>();
-
-    let offline = inputs::labeled_checkbox(
-        &t(locale, "settings.offlineMode"),
-        state.offline_mode,
-        |b| Message::Settings(SettingsMsg::OfflineModeChanged(b)),
-    );
-    let online_url = inputs::labeled_input(
-        &t(locale, "settings.onlineEndpointUrl"),
+    let online = ai_mode_block(
+        &state.online_ai,
+        AiEndpointKind::Online,
+        locale,
         "https://api.example.com/v1",
-        &state.online_endpoint_url,
-        |value| Message::Settings(SettingsMsg::OnlineEndpointUrlChanged(value)),
     );
-    let online_model = inputs::labeled_input(
-        &t(locale, "settings.onlineEndpointModel"),
-        "gpt-4.1-mini",
-        &state.online_endpoint_model,
-        |value| Message::Settings(SettingsMsg::OnlineEndpointModelChanged(value)),
-    );
-    let keychain_placeholder = t(locale, "settings.keychainConfigured");
-    let online_api_key = inputs::labeled_input(
-        &t(locale, "settings.onlineApiKey"),
-        if state.online_api_key_configured {
-            &keychain_placeholder
-        } else {
-            "sk-..."
-        },
-        &state.online_api_key_input,
-        |value| Message::Settings(SettingsMsg::OnlineApiKeyChanged(value)),
-    );
-    let online_refresh = button(text(t(locale, "settings.refreshModels")).size(13))
-        .on_press(Message::Settings(SettingsMsg::RefreshOnlineModels))
-        .style(inputs::secondary_button)
-        .padding([6, 16]);
-
-    let airplane_url = inputs::labeled_input(
-        &t(locale, "settings.airplaneEndpointUrl"),
+    let airplane = ai_mode_block(
+        &state.airplane_ai,
+        AiEndpointKind::Airplane,
+        locale,
         "http://localhost:11434/v1",
-        &state.airplane_endpoint_url,
-        |value| Message::Settings(SettingsMsg::AirplaneEndpointUrlChanged(value)),
-    );
-    let airplane_model = inputs::labeled_input(
-        &t(locale, "settings.airplaneEndpointModel"),
-        "llama3.2",
-        &state.airplane_endpoint_model,
-        |value| Message::Settings(SettingsMsg::AirplaneEndpointModelChanged(value)),
-    );
-    let airplane_refresh = button(text(t(locale, "settings.refreshModels")).size(13))
-        .on_press(Message::Settings(SettingsMsg::RefreshAirplaneModels))
-        .style(inputs::secondary_button)
-        .padding([6, 16]);
-
-    let default_model = inputs::labeled_select(
-        &t(locale, "settings.defaultModel"),
-        &model_options,
-        model_options
-            .iter()
-            .find(|option| option.id == state.default_model),
-        |option| Message::Settings(SettingsMsg::DefaultModelChanged(option.id)),
-    );
-    let title_model = inputs::labeled_select(
-        &t(locale, "settings.titleModel"),
-        &model_options,
-        model_options
-            .iter()
-            .find(|option| option.id == state.title_model),
-        |option| Message::Settings(SettingsMsg::TitleModelChanged(option.id)),
-    );
-    let image_model = inputs::labeled_select(
-        &t(locale, "settings.imageAnalysisModel"),
-        &image_model_options,
-        image_model_options
-            .iter()
-            .find(|option| option.id == state.image_model),
-        |option| Message::Settings(SettingsMsg::ImageModelChanged(option.id)),
     );
     let prompt = column![
         text(t(locale, "settings.systemPrompt"))
@@ -909,27 +805,118 @@ fn section_ai<'a>(state: &'a SettingsViewState, locale: UiLocale) -> Element<'a,
     ]
     .spacing(8);
 
-    column![
-        offline,
-        text(t(locale, "settings.onlineEndpointSection"))
-            .size(12)
-            .color(inputs::LABEL_COLOR),
-        online_url,
-        row![online_model, online_api_key].spacing(12),
-        online_refresh,
-        text(t(locale, "settings.airplaneEndpointSection"))
-            .size(12)
-            .color(inputs::LABEL_COLOR),
-        airplane_url,
-        row![airplane_model, airplane_refresh].spacing(12),
-        default_model,
-        title_model,
-        image_model,
-        prompt,
-        btns,
-    ]
-    .spacing(8)
-    .padding([0, 16])
+    column![online, airplane, prompt, btns,]
+        .spacing(8)
+        .padding([0, 16])
+        .into()
+}
+
+fn ai_mode_block<'a>(
+    state: &'a AiModeViewState,
+    kind: AiEndpointKind,
+    locale: UiLocale,
+    url_placeholder: &'a str,
+) -> Element<'a, Message> {
+    let mut options = state.model_options.clone();
+    for model in [&state.chat_model, &state.title_model, &state.image_model] {
+        if !model.is_empty() && !options.iter().any(|option| option.id == *model) {
+            options.push(AiModelOption {
+                id: model.clone(),
+                label: model.clone(),
+                supports_tools: false,
+                supports_vision: false,
+            });
+        }
+    }
+    options.sort_by(|left, right| left.label.cmp(&right.label));
+    options.insert(
+        0,
+        AiModelOption {
+            id: String::new(),
+            label: t(locale, "tags.noTemplate"),
+            supports_tools: false,
+            supports_vision: false,
+        },
+    );
+    let selected = |id: &str| options.iter().find(|option| option.id == id);
+    let section_key = match kind {
+        AiEndpointKind::Online => "settings.onlineEndpointSection",
+        AiEndpointKind::Airplane => "settings.airplaneEndpointSection",
+    };
+    let url_key = match kind {
+        AiEndpointKind::Online => "settings.onlineEndpointUrl",
+        AiEndpointKind::Airplane => "settings.airplaneEndpointUrl",
+    };
+    let api_key = match kind {
+        AiEndpointKind::Online => "settings.onlineApiKey",
+        AiEndpointKind::Airplane => "settings.airplaneApiKey",
+    };
+    let keychain_placeholder = t(locale, "settings.keychainConfigured");
+
+    inputs::card(
+        column![
+            text(t(locale, section_key)).size(15),
+            row![
+                inputs::labeled_input(
+                    &t(locale, url_key),
+                    url_placeholder,
+                    &state.endpoint_url,
+                    move |value| {
+                        Message::Settings(SettingsMsg::AiEndpointUrlChanged(kind, value))
+                    }
+                ),
+                button(text(t(locale, "settings.refreshModels")).size(13))
+                    .on_press(Message::Settings(SettingsMsg::RefreshAiModels(kind)))
+                    .style(inputs::secondary_button)
+                    .padding([6, 16]),
+            ]
+            .spacing(12)
+            .align_y(Alignment::End),
+            inputs::labeled_secure_input(
+                &t(locale, api_key),
+                if state.api_key_configured {
+                    &keychain_placeholder
+                } else {
+                    "sk-..."
+                },
+                &state.api_key_input,
+                move |value| Message::Settings(SettingsMsg::AiApiKeyChanged(kind, value)),
+            ),
+            inputs::labeled_select(
+                &t(locale, "settings.chatModel"),
+                &options,
+                selected(&state.chat_model),
+                move |option| Message::Settings(SettingsMsg::AiChatModelChanged(kind, option.id)),
+            ),
+            inputs::labeled_checkbox(
+                &t(locale, "settings.modelSupportsTools"),
+                state.chat_supports_tools,
+                move |value| Message::Settings(SettingsMsg::AiToolsChanged(kind, value)),
+            ),
+            inputs::labeled_select(
+                &t(locale, "settings.titleModel"),
+                &options,
+                selected(&state.title_model),
+                move |option| Message::Settings(SettingsMsg::AiTitleModelChanged(kind, option.id)),
+            ),
+            inputs::labeled_select(
+                &t(locale, "settings.imageAnalysisModel"),
+                &options,
+                selected(&state.image_model),
+                move |option| Message::Settings(SettingsMsg::AiImageModelChanged(kind, option.id)),
+            ),
+            inputs::labeled_checkbox(
+                &t(locale, "settings.modelSupportsVision"),
+                state.image_supports_vision,
+                move |value| Message::Settings(SettingsMsg::AiVisionChanged(kind, value)),
+            ),
+            button(text(t(locale, "settings.testChat")).size(13))
+                .on_press(Message::Settings(SettingsMsg::TestAi(kind)))
+                .style(inputs::secondary_button)
+                .padding([6, 16]),
+        ]
+        .spacing(8),
+    )
     .into()
 }
 

crates/bds-ui/src/views/workspace.rs

@@ -649,14 +649,14 @@ fn is_ai_enabled(settings_state: Option<&SettingsViewState>, offline_mode: bool)
         return false;
     };
 
-    if offline_mode {
-        !state.airplane_endpoint_url.trim().is_empty()
-            && !state.airplane_endpoint_model.trim().is_empty()
+    let mode = if offline_mode {
+        &state.airplane_ai
     } else {
-        !state.online_endpoint_url.trim().is_empty()
-            && !state.online_endpoint_model.trim().is_empty()
-            && (state.online_api_key_configured || !state.online_api_key_input.trim().is_empty())
-    }
+        &state.online_ai
+    };
+    !mode.endpoint_url.trim().is_empty()
+        && !mode.chat_model.trim().is_empty()
+        && (offline_mode || mode.api_key_configured || !mode.api_key_input.trim().is_empty())
 }
 
 fn loading_view<'a>(locale: UiLocale) -> Element<'a, Message> {
@@ -965,14 +965,14 @@ mod tests {
         assert!(!is_ai_enabled(Some(&settings), false));
         assert!(!is_ai_enabled(Some(&settings), true));
 
-        settings.online_endpoint_url = "https://api.example.com/v1".to_string();
-        settings.online_endpoint_model = "gpt-4.1-mini".to_string();
-        settings.online_api_key_configured = true;
+        settings.online_ai.endpoint_url = "https://api.example.com/v1".to_string();
+        settings.online_ai.chat_model = "gpt-4.1-mini".to_string();
+        settings.online_ai.api_key_configured = true;
         assert!(is_ai_enabled(Some(&settings), false));
         assert!(!is_ai_enabled(Some(&settings), true));
 
-        settings.airplane_endpoint_url = "http://localhost:11434/v1".to_string();
-        settings.airplane_endpoint_model = "llama3.2".to_string();
+        settings.airplane_ai.endpoint_url = "http://localhost:11434/v1".to_string();
+        settings.airplane_ai.chat_model = "llama3.2".to_string();
         assert!(is_ai_enabled(Some(&settings), true));
     }
 }

crates/bds-ui/tests/m2_validation.rs

@@ -27,6 +27,7 @@ fn dialog_keys_exist_in_all_locales() {
 #[test]
 fn toast_keys_exist_in_all_locales() {
     let keys = [
+        "editor.saved",
         "projectSelector.toast.switched",
         "projectSelector.toast.switchFailed",
         "projectSelector.toast.created",

locales/ui/de.ftl

@@ -119,6 +119,7 @@ chat-new = Neue Unterhaltung
 chat-newWithModel = Unterhaltung mit { $model }
 chat-unavailable-title = Die dialogbasierte KI ist nicht verfügbar
 chat-unavailable-guidance = Konfiguriere den aktiven KI-Endpunkt und das Modell in den Einstellungen. Im Flugmodus wird nur der lokale Endpunkt verwendet.
+chat-providerError = Fehler des KI-Anbieters:
 chat-unavailable-openSettings = KI-Einstellungen öffnen
 chat-model-none = Kein Modell ausgewählt
 chat-model-label = Modell
@@ -372,6 +373,7 @@ sidebar-filter-tags = Tags
 sidebar-filter-categories = Kategorien
 sidebar-filter-calendar = Archiv
 sidebar-filter-noResults = Keine Treffer
+editor-saved = Gespeichert.
 editor-title = Titel
 editor-titlePlaceholder = Titel eingeben...
 editor-slug = Slug
@@ -489,10 +491,27 @@ settings-onlineEndpointSection = Online-Endpunkt
 settings-onlineEndpointUrl = URL des Online-Endpunkts
 settings-onlineEndpointModel = Modell des Online-Endpunkts
 settings-onlineApiKey = Online-API-Schlüssel
+settings-airplaneApiKey = Lokaler API-Schlüssel (optional)
 settings-airplaneEndpointSection = Flugmodus-Endpunkt
 settings-airplaneEndpointUrl = URL des Flugmodus-Endpunkts
 settings-airplaneEndpointModel = Modell des Flugmodus-Endpunkts
 settings-refreshModels = Modelle aktualisieren
+settings-chatModel = Chat-Modell
+settings-modelSupportsTools = Ausgewähltes Chat-Modell unterstützt Werkzeugaufrufe
+settings-modelSupportsVision = Ausgewähltes Bildmodell unterstützt Bilderkennung
+settings-testChat = Chat testen
+settings-modelsLoaded = Modelle geladen.
+settings-testChatSuccess = Die ausgewählten Modelle haben erfolgreich geantwortet.
+settings-onlineChatModel = Online-Chat-Modell
+settings-onlineTitleModel = Online-Titelmodell
+settings-onlineImageModel = Online-Bildmodell
+settings-onlineModelSupportsTools = Online-Chat-Modell unterstützt Werkzeugaufrufe
+settings-onlineModelSupportsVision = Online-Bildmodell unterstützt Bilderkennung
+settings-airplaneChatModel = Lokales Chat-Modell
+settings-airplaneTitleModel = Lokales Titelmodell
+settings-airplaneImageModel = Lokales Bildmodell
+settings-airplaneModelSupportsTools = Lokales Chat-Modell unterstützt Werkzeugaufrufe
+settings-airplaneModelSupportsVision = Lokales Bildmodell unterstützt Bilderkennung
 settings-defaultModel = Standardmodell
 settings-titleModel = Titelmodell
 settings-imageAnalysisModel = Bildanalysemodell

locales/ui/en.ftl

@@ -119,6 +119,7 @@ chat-new = New Chat
 chat-newWithModel = Chat with { $model }
 chat-unavailable-title = Conversational AI is unavailable
 chat-unavailable-guidance = Configure the active AI endpoint and model in Settings. Airplane mode uses only the local endpoint.
+chat-providerError = AI provider error:
 chat-unavailable-openSettings = Open AI Settings
 chat-model-none = No model selected
 chat-model-label = Model
@@ -363,6 +364,7 @@ sidebar-filter-tags = Tags
 sidebar-filter-categories = Categories
 sidebar-filter-calendar = Archive
 sidebar-filter-noResults = No matching items
+editor-saved = Saved.
 editor-title = Title
 editor-titlePlaceholder = Enter title...
 editor-slug = Slug
@@ -489,10 +491,27 @@ settings-onlineEndpointSection = Online Endpoint
 settings-onlineEndpointUrl = Online Endpoint URL
 settings-onlineEndpointModel = Online Endpoint Model
 settings-onlineApiKey = Online API Key
+settings-airplaneApiKey = Local API Key (Optional)
 settings-airplaneEndpointSection = Airplane Endpoint
 settings-airplaneEndpointUrl = Airplane Endpoint URL
 settings-airplaneEndpointModel = Airplane Endpoint Model
 settings-refreshModels = Refresh Models
+settings-chatModel = Chat Model
+settings-modelSupportsTools = Selected chat model supports tool calls
+settings-modelSupportsVision = Selected image model supports vision
+settings-testChat = Test Chat
+settings-modelsLoaded = Models loaded.
+settings-testChatSuccess = Selected models responded successfully.
+settings-onlineChatModel = Online Chat Model
+settings-onlineTitleModel = Online Title Model
+settings-onlineImageModel = Online Image Model
+settings-onlineModelSupportsTools = Online chat model supports tool calls
+settings-onlineModelSupportsVision = Online image model supports vision
+settings-airplaneChatModel = Local Chat Model
+settings-airplaneTitleModel = Local Title Model
+settings-airplaneImageModel = Local Image Model
+settings-airplaneModelSupportsTools = Local chat model supports tool calls
+settings-airplaneModelSupportsVision = Local image model supports vision
 settings-defaultModel = Default Model
 settings-titleModel = Title Model
 settings-imageAnalysisModel = Image Analysis Model

locales/ui/es.ftl

@@ -119,6 +119,7 @@ chat-new = Nueva conversación
 chat-newWithModel = Conversación con { $model }
 chat-unavailable-title = La IA conversacional no está disponible
 chat-unavailable-guidance = Configura el punto de acceso de IA activo y el modelo en Ajustes. El modo avión usa únicamente el punto de acceso local.
+chat-providerError = Error del proveedor de IA:
 chat-unavailable-openSettings = Abrir ajustes de IA
 chat-model-none = Ningún modelo seleccionado
 chat-model-label = Modelo
@@ -372,6 +373,7 @@ sidebar-filter-tags = Etiquetas
 sidebar-filter-categories = Categorías
 sidebar-filter-calendar = Archivo
 sidebar-filter-noResults = Sin resultados
+editor-saved = Guardado.
 editor-title = Título
 editor-titlePlaceholder = Introducir título...
 editor-slug = Slug
@@ -489,10 +491,27 @@ settings-onlineEndpointSection = Extremo en línea
 settings-onlineEndpointUrl = URL del extremo en línea
 settings-onlineEndpointModel = Modelo del extremo en línea
 settings-onlineApiKey = Clave API en línea
+settings-airplaneApiKey = Clave API local (opcional)
 settings-airplaneEndpointSection = Extremo de modo avión
 settings-airplaneEndpointUrl = URL del extremo de modo avión
 settings-airplaneEndpointModel = Modelo del extremo de modo avión
 settings-refreshModels = Actualizar modelos
+settings-chatModel = Modelo de chat
+settings-modelSupportsTools = El modelo de chat seleccionado admite llamadas a herramientas
+settings-modelSupportsVision = El modelo de imagen seleccionado admite visión
+settings-testChat = Probar chat
+settings-modelsLoaded = Modelos cargados.
+settings-testChatSuccess = Los modelos seleccionados respondieron correctamente.
+settings-onlineChatModel = Modelo de chat en línea
+settings-onlineTitleModel = Modelo de títulos en línea
+settings-onlineImageModel = Modelo de imágenes en línea
+settings-onlineModelSupportsTools = El modelo de chat en línea admite llamadas a herramientas
+settings-onlineModelSupportsVision = El modelo de imágenes en línea admite visión
+settings-airplaneChatModel = Modelo de chat local
+settings-airplaneTitleModel = Modelo de títulos local
+settings-airplaneImageModel = Modelo de imágenes local
+settings-airplaneModelSupportsTools = El modelo de chat local admite llamadas a herramientas
+settings-airplaneModelSupportsVision = El modelo de imágenes local admite visión
 settings-defaultModel = Modelo predeterminado
 settings-titleModel = Modelo de títulos
 settings-imageAnalysisModel = Modelo de análisis de imágenes

locales/ui/fr.ftl

@@ -119,6 +119,7 @@ chat-new = Nouvelle conversation
 chat-newWithModel = Conversation avec { $model }
 chat-unavailable-title = L’IA conversationnelle est indisponible
 chat-unavailable-guidance = Configurez le point d’accès IA actif et le modèle dans les réglages. Le mode avion utilise uniquement le point d’accès local.
+chat-providerError = Erreur du fournisseur d’IA :
 chat-unavailable-openSettings = Ouvrir les réglages IA
 chat-model-none = Aucun modèle sélectionné
 chat-model-label = Modèle
@@ -372,6 +373,7 @@ sidebar-filter-tags = Tags
 sidebar-filter-categories = Catégories
 sidebar-filter-calendar = Archives
 sidebar-filter-noResults = Aucun résultat
+editor-saved = Enregistré.
 editor-title = Titre
 editor-titlePlaceholder = Saisir le titre...
 editor-slug = Slug
@@ -489,10 +491,27 @@ settings-onlineEndpointSection = Point de terminaison en ligne
 settings-onlineEndpointUrl = URL du point de terminaison en ligne
 settings-onlineEndpointModel = Modèle du point de terminaison en ligne
 settings-onlineApiKey = Clé API en ligne
+settings-airplaneApiKey = Clé API locale (facultative)
 settings-airplaneEndpointSection = Point de terminaison mode avion
 settings-airplaneEndpointUrl = URL du point de terminaison mode avion
 settings-airplaneEndpointModel = Modèle du point de terminaison mode avion
 settings-refreshModels = Rafraîchir les modèles
+settings-chatModel = Modèle de discussion
+settings-modelSupportsTools = Le modèle de discussion sélectionné prend en charge les appels d’outils
+settings-modelSupportsVision = Le modèle d’image sélectionné prend en charge la vision
+settings-testChat = Tester la discussion
+settings-modelsLoaded = Modèles chargés.
+settings-testChatSuccess = Les modèles sélectionnés ont répondu correctement.
+settings-onlineChatModel = Modèle de discussion en ligne
+settings-onlineTitleModel = Modèle de titre en ligne
+settings-onlineImageModel = Modèle d’image en ligne
+settings-onlineModelSupportsTools = Le modèle de discussion en ligne prend en charge les appels d’outils
+settings-onlineModelSupportsVision = Le modèle d’image en ligne prend en charge la vision
+settings-airplaneChatModel = Modèle de discussion local
+settings-airplaneTitleModel = Modèle de titre local
+settings-airplaneImageModel = Modèle d’image local
+settings-airplaneModelSupportsTools = Le modèle de discussion local prend en charge les appels d’outils
+settings-airplaneModelSupportsVision = Le modèle d’image local prend en charge la vision
 settings-defaultModel = Modèle par défaut
 settings-titleModel = Modèle de titres
 settings-imageAnalysisModel = Modèle d'analyse d'image

locales/ui/it.ftl

@@ -119,6 +119,7 @@ chat-new = Nuova conversazione
 chat-newWithModel = Conversazione con { $model }
 chat-unavailable-title = L’IA conversazionale non è disponibile
 chat-unavailable-guidance = Configura l’endpoint IA attivo e il modello nelle impostazioni. La modalità aereo usa solo l’endpoint locale.
+chat-providerError = Errore del provider IA:
 chat-unavailable-openSettings = Apri impostazioni IA
 chat-model-none = Nessun modello selezionato
 chat-model-label = Modello
@@ -372,6 +373,7 @@ sidebar-filter-tags = Tag
 sidebar-filter-categories = Categorie
 sidebar-filter-calendar = Archivio
 sidebar-filter-noResults = Nessun risultato
+editor-saved = Salvato.
 editor-title = Titolo
 editor-titlePlaceholder = Inserisci titolo...
 editor-slug = Slug
@@ -489,10 +491,27 @@ settings-onlineEndpointSection = Endpoint online
 settings-onlineEndpointUrl = URL endpoint online
 settings-onlineEndpointModel = Modello endpoint online
 settings-onlineApiKey = Chiave API online
+settings-airplaneApiKey = Chiave API locale (facoltativa)
 settings-airplaneEndpointSection = Endpoint modalità aereo
 settings-airplaneEndpointUrl = URL endpoint modalità aereo
 settings-airplaneEndpointModel = Modello endpoint modalità aereo
 settings-refreshModels = Aggiorna modelli
+settings-chatModel = Modello chat
+settings-modelSupportsTools = Il modello chat selezionato supporta le chiamate agli strumenti
+settings-modelSupportsVision = Il modello immagini selezionato supporta la visione
+settings-testChat = Prova chat
+settings-modelsLoaded = Modelli caricati.
+settings-testChatSuccess = I modelli selezionati hanno risposto correttamente.
+settings-onlineChatModel = Modello chat online
+settings-onlineTitleModel = Modello titoli online
+settings-onlineImageModel = Modello immagini online
+settings-onlineModelSupportsTools = Il modello chat online supporta le chiamate agli strumenti
+settings-onlineModelSupportsVision = Il modello immagini online supporta la visione
+settings-airplaneChatModel = Modello chat locale
+settings-airplaneTitleModel = Modello titoli locale
+settings-airplaneImageModel = Modello immagini locale
+settings-airplaneModelSupportsTools = Il modello chat locale supporta le chiamate agli strumenti
+settings-airplaneModelSupportsVision = Il modello immagini locale supporta la visione
 settings-defaultModel = Modello predefinito
 settings-titleModel = Modello titoli
 settings-imageAnalysisModel = Modello analisi immagini

specs/ai.allium

@@ -12,8 +12,12 @@ use "./media.allium" as media
 entity AiEndpoint {
     kind: online | airplane
     url: String
-    api_key: String?                    -- encrypted via SecureKeyStore; null for local models
-    model: String
+    api_key: String?                    -- encrypted via SecureKeyStore; required online, optional locally
+    model: String                       -- chat model
+    title_model: String?
+    image_model: String?
+    chat_supports_tools: Boolean?       -- operator override of discovered capability
+    image_supports_vision: Boolean?     -- operator override of discovered capability
     -- online: cloud provider (OpenAI, Anthropic-via-proxy, etc.)
     -- airplane: local model (Ollama, LM Studio, etc.)
 }
@@ -81,6 +85,10 @@ surface AiEndpointSurface {
         endpoint.url
         endpoint.api_key when endpoint.api_key != null
         endpoint.model
+        endpoint.title_model when endpoint.title_model != null
+        endpoint.image_model when endpoint.image_model != null
+        endpoint.chat_supports_tools when endpoint.chat_supports_tools != null
+        endpoint.image_supports_vision when endpoint.image_supports_vision != null
 }
 
     surface AiModelSurface {
@@ -177,8 +185,10 @@ surface AiConfigurationSurface {
     facing _: AiOperator
 
     provides:
-        SetAiEndpointRequested(kind, url, api_key, model)
+        SetAiEndpointRequested(kind, url, api_key, model, title_model, image_model, chat_supports_tools, image_supports_vision)
         RemoveAiEndpointRequested(kind)
+        RefreshEndpointModelsRequested(kind, url, api_key)
+        TestEndpointModelsRequested(kind)
         RefreshModelCatalogRequested(source)
 }
 
@@ -221,13 +231,17 @@ config {
 }
 
 rule SetAiEndpoint {
-    when: SetAiEndpointRequested(kind, url, api_key, model)
+    when: SetAiEndpointRequested(kind, url, api_key, model, title_model, image_model, chat_supports_tools, image_supports_vision)
     ensures:
         let endpoint = AiEndpoint.created(
             kind: kind,
             url: url,
             api_key: api_key,
-            model: model
+            model: model,
+            title_model: title_model,
+            image_model: image_model,
+            chat_supports_tools: chat_supports_tools,
+            image_supports_vision: image_supports_vision
         )
         endpoint.kind = kind
 }
@@ -335,6 +349,22 @@ rule RefreshModelCatalog {
     ensures: ModelCatalogUpdated()
 }
 
+rule RefreshEndpointModels {
+    when: RefreshEndpointModelsRequested(kind, url, api_key)
+    requires: url != ""
+    requires: kind = airplane or api_key != null
+    -- Discovery calls GET /models and does not require a selected model.
+    ensures: EndpointModelsLoaded(kind)
+}
+
+rule TestEndpointModels {
+    when: TestEndpointModelsRequested(kind)
+    requires: exists endpoint in AiEndpoints where endpoint.kind = kind
+    -- Sends a minimal chat-completions request to each distinct configured
+    -- chat, title, and image model for this endpoint.
+    ensures: EndpointModelsResponded(kind)
+}
+
 invariant AirplaneModeGating {
     -- Endpoint routing based on airplane (offline) mode:
     --   airplane_mode = true  -> use airplane endpoint (local model)
@@ -347,8 +377,8 @@ invariant AirplaneModeGating {
 
 invariant AirplaneModeModelSwap {
     -- In airplane mode, cloud models are never contacted.
-    -- Chat uses the configured offline chat model when needed.
-    -- Image analysis uses the configured offline vision-capable model when needed.
+    -- Chat, title generation, and image analysis use the models and capability
+    -- overrides configured for the active endpoint profile.
     -- If no suitable offline model is configured, the operation fails with
     --   actionable guidance instead of silently falling back to the online endpoint.
 }
@@ -356,9 +386,11 @@ invariant AirplaneModeModelSwap {
 invariant TwoEndpointModel {
     -- Two configurable OpenAI-compatible endpoints:
     --   online: for cloud providers (requires API key)
-    --   airplane: for local models (no API key required)
+    --   airplane: for local models (API key optional)
     -- Both use the OpenAI Chat Completions wire format.
-    -- Endpoint selection is configurable rather than tied to hard-coded providers.
+    -- URL, credentials, chat/title/image models, and capability overrides are
+    -- independent. Endpoint selection is controlled only by the status-bar
+    -- airplane-mode switch, not by a duplicate Settings toggle.
 }
 
 invariant AdvisoryModelCatalog {
@@ -387,6 +419,12 @@ invariant VisionCapabilityGate {
     -- before the runtime sends multimodal requests to them.
 }
 
+invariant OperatorCapabilityOverrides {
+    -- Discovered tool and vision capabilities prefill the profile controls.
+    -- Explicit operator overrides take precedence at runtime so models with
+    -- incomplete metadata can enable or disable tools and image input safely.
+}
+
 invariant ChatContextTruncation {
     -- Chat requests are trimmed to fit within the selected model's context window.
     -- Oldest user/assistant pairs are dropped first.

specs/editor_settings.allium

@@ -53,17 +53,21 @@ value SettingsCategoryRow {
 }
 
 value SettingsAISection {
-    anthropic_api_key: String?          -- masked + Change/Save
-    mistral_api_key: String?            -- masked + Change/Save
-    ollama_enabled: Boolean             -- toggle, shows model capabilities table (tools/vision)
-    lm_studio_enabled: Boolean          -- toggle, shows model capabilities table
-    offline_mode: Boolean               -- toggle, switches between online and airplane endpoint
-    default_model: String?              -- select from active endpoint models
-    title_model: String?                -- select
-    image_analysis_model: String?       -- select (vision-capable only)
+    online: SettingsAIEndpoint
+    airplane: SettingsAIEndpoint
     system_prompt: String               -- textarea (12 rows) + Save + Reset to Default
 }
 
+value SettingsAIEndpoint {
+    url: String
+    api_key: String?                    -- masked; optional for airplane endpoint
+    chat_model: String?
+    title_model: String?
+    image_model: String?
+    chat_supports_tools: Boolean
+    image_supports_vision: Boolean
+}
+
 value SettingsTechnologySection {
     semantic_similarity_enabled: Boolean -- checkbox: enable duplicate search + related-post embeddings
     -- Scripting runtime is fixed at the application layer; no runtime switch is exposed.
@@ -130,8 +134,9 @@ surface SettingsViewSurface {
         SettingsCategoryUpdated(category_row)
         SettingsCategoryRemoved(category_name)
         SettingsCategoriesResetToDefaults()
-        SettingsAIApiKeySaved(provider, key)
-        SettingsAIModelRefreshRequested(endpoint)
+        SettingsAIProfileSaved(kind, endpoint)
+        SettingsAIModelRefreshRequested(kind, url, api_key)
+        SettingsAIChatTestRequested(kind)
         SettingsAISystemPromptSaved(prompt)
         SettingsAISystemPromptReset()
         SettingsPublishingSaved(publishing_data)
@@ -179,23 +184,27 @@ surface SettingsViewSurface {
         -- "Reset to Defaults" restores default categories set.
 
     @guarantee AISection
-        -- Section 4: Anthropic API key, Mistral API key (both masked + Change/Save),
-        --   Ollama toggle (with model capabilities table: tools/vision),
-        --   LM Studio toggle (with capabilities table),
-        --   Offline mode toggle (with dedicated model selectors for chat/title/image),
-        --   Default model (with catalog info: max output, context window),
-        --   Title model, Image analysis model,
+        -- Section 4: independent Online and Airplane endpoint cards. Each has
+        --   URL, masked API key (optional locally), Refresh Models, chat/title/image
+        --   selectors, explicit tools/vision capability overrides, and Test Chat.
+        --   Settings has no airplane-mode toggle; the status-bar switch selects
+        --   the active profile and immediately swaps chat/model routing.
         --   System prompt (textarea config.settings_system_prompt_rows rows + Save + Reset).
 
     @guarantee AIApiKeyValidation
-        -- On Save: test API call to endpoint before persisting.
-        -- On failure: toast error message, key not saved.
-        -- On success: key encrypted via SecureKeyStore, masked display shown.
+        -- API keys are encrypted via SecureKeyStore and displayed masked.
+        -- Online profiles require a key; airplane profiles permit authenticated
+        -- or unauthenticated local OpenAI-compatible endpoints.
 
     @guarantee AIModelRefresh
         -- Refresh Models button per endpoint fetches model list from URL.
-        -- Model selector populated from fetched list.
-        -- Per-model info: max output tokens, context window (when available).
+        -- Discovery requires URL and online credentials but no preselected model.
+        -- All three role selectors are populated independently from the result;
+        -- advertised capability metadata prefills tools and vision overrides.
+
+    @guarantee AIChatTest
+        -- Test Chat sends a minimal request through every distinct model selected
+        -- for chat, title generation, or image analysis in the chosen profile.
 
     @guarantee TechnologySection
         -- Section 5: Semantic Similarity toggle