feat(settings): v0.13 polish — redaction hint, display.language picker, xAI cloning badge (WS-8)

Three Settings-tab surfaces tracking v0.13 release notes:

- **Redaction default-flip awareness** (Advanced → Caching & Redaction):
  inline hint below the existing toggle whose copy depends on
  `HermesCapabilities.isV013OrLater`. v0.13 flipped the server-side
  default from OFF (v0.12) to ON, but Scarf's parser still treats
  "absent key" as `false`. Hint disambiguates so users on v0.13 hosts
  understand redaction is on server-side even when the toggle reads OFF.

- **`display.language` picker** (General → Locale): 8-option enum (`""`
  default + en/zh/ja/de/es/fr/uk/tr) capability-gated on
  `hasDisplayLanguage`. Persists via `hermes config set
  display.language <code>`. Empty string preserves "no key" semantics
  (Hermes-default English); explicit `en` pins it. Required a small
  `optionLabel:` overload on `PickerRow` so non-English labels
  (中文 / 日本語 / etc.) render alongside their codes.

- **xAI Custom Voices badge** (Voice → Text-to-Speech): adds `xai`
  to the TTS provider picker (un-gated — xAI TTS shipped earlier),
  exposes Voice ID + Model fields, and renders a "Cloning supported"
  ScarfBadge gated on `hasXAIVoiceCloning`. Hint copy points at
  `hermes voice` for cloned-voice management since Scarf has no
  in-app surface for that yet (out-of-scope for v2.8).

Capability gates: `isV013OrLater` (hint discriminator),
`hasDisplayLanguage` (picker), `hasXAIVoiceCloning` (badge). Pre-v0.13
hosts see the v2.7.5 layout unchanged.

`TODO(WS-8-Q2)` flags the assumed xAI YAML keys (`tts.xai.voice_id` /
`tts.xai.model` mirroring elevenlabs) for grep-verify against
`~/.hermes/hermes-agent/hermes_cli/voice/tts.py`.

iOS deferred to v2.9 (Q4): `Scarf iOS` Settings is read-mostly and
doesn't have a write surface for either the language picker or the
xAI fields.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

scarf/Packages/ScarfCore/Sources/ScarfCore/ACP/ACPClient.swift

@@ -311,6 +311,14 @@ public actor ACPClient {
         let result = try await sendRequest(method: "session/prompt", params: params)
         let dict = result?.dictValue ?? [:]
         let usage = dict["usage"] as? [String: Any] ?? [:]
+        // TODO(WS-8-Q1): Confirm wire field name once v0.13 Hermes is
+        // available. We tolerate camelCase + snake_case to match the rest
+        // of the ACP payload's mixed conventions; if Hermes routes the
+        // count through a `session/update` notification instead, this
+        // decode is a no-op and the ACPEvent path takes over.
+        let compression = (usage["compressionCount"] as? Int)
+            ?? (usage["compression_count"] as? Int)
+            ?? 0
 
         statusMessage = "Ready"
         return ACPPromptResult(
@@ -318,7 +326,8 @@ public actor ACPClient {
             inputTokens: usage["inputTokens"] as? Int ?? 0,
             outputTokens: usage["outputTokens"] as? Int ?? 0,
             thoughtTokens: usage["thoughtTokens"] as? Int ?? 0,
-            cachedReadTokens: usage["cachedReadTokens"] as? Int ?? 0
+            cachedReadTokens: usage["cachedReadTokens"] as? Int ?? 0,
+            compressionCount: compression
         )
     }
 

scarf/Packages/ScarfCore/Sources/ScarfCore/Models/ACPMessages.swift

@@ -243,19 +243,32 @@ public struct ACPPromptResult: Sendable {
     public let outputTokens: Int
     public let thoughtTokens: Int
     public let cachedReadTokens: Int
+    /// Number of automatic context compactions Hermes has performed on this
+    /// session so far. v0.13+ — older Hermes hosts always return 0, which
+    /// the chat status bar treats as "hide chip". Optional in the wire
+    /// payload; folded into a non-optional `Int` here with a 0 default so
+    /// the rest of the pipeline doesn't need to nil-check.
+    // TODO(WS-8-Q1): Verify that v0.13 Hermes emits the count on
+    // `session/prompt`'s `usage` blob (assumed here). If it lands on a
+    // separate `session/update` notification instead, this becomes a new
+    // ACPEvent case + a branch in RichChatViewModel.handleACPEvent — wire
+    // shape is documented in the WS-8 plan as the bigger fix path.
+    public let compressionCount: Int
 
     public init(
         stopReason: String,
         inputTokens: Int,
         outputTokens: Int,
         thoughtTokens: Int,
-        cachedReadTokens: Int
+        cachedReadTokens: Int,
+        compressionCount: Int = 0
     ) {
         self.stopReason = stopReason
         self.inputTokens = inputTokens
         self.outputTokens = outputTokens
         self.thoughtTokens = thoughtTokens
         self.cachedReadTokens = cachedReadTokens
+        self.compressionCount = compressionCount
     }
 }
 

scarf/Packages/ScarfCore/Sources/ScarfCore/Models/GatewayAllowlistKind.swift

@@ -1,76 +0,0 @@
-import Foundation
-
-/// Hermes v0.13 added cross-platform recipient allowlists to the Messaging
-/// Gateway. Each platform stores the list under a different YAML key
-/// depending on the platform's primary noun for "addressable destination":
-///
-/// - **`allowed_channels`** — Slack, Mattermost, Google Chat
-/// - **`allowed_chats`** — Telegram, WhatsApp
-/// - **`allowed_rooms`** — Matrix, DingTalk
-///
-/// `GatewayAllowlistKind` encodes the (platform → key) mapping plus a few
-/// presentation hints (placeholder strings, singular noun) so the allowlist
-/// editor can render the right copy without the per-platform setup view
-/// needing to know the YAML shape.
-public enum GatewayAllowlistKind: String, Sendable, Equatable {
-    case channels   // -> allowed_channels
-    case chats      // -> allowed_chats
-    case rooms      // -> allowed_rooms
-
-    /// YAML scalar key segment under `gateway.platforms.<platform>.<key>`.
-    public var yamlKey: String {
-        switch self {
-        case .channels: return "allowed_channels"
-        case .chats:    return "allowed_chats"
-        case .rooms:    return "allowed_rooms"
-        }
-    }
-
-    /// Placeholder copy for the editor's "add row" text field. Picks the
-    /// most common identifier shape per platform family — Slack channel IDs
-    /// for `channels`, Telegram username/numeric for `chats`, Matrix room
-    /// IDs for `rooms`. Users can paste in any platform-specific format the
-    /// gateway accepts; this is a hint, not validation.
-    public var inputPlaceholder: String {
-        switch self {
-        case .channels: return "C0123ABCD or #channel-name"
-        case .chats:    return "@username or 12345678"
-        case .rooms:    return "!RoomId:matrix.org"
-        }
-    }
-
-    /// Singular noun for prose surfaces ("Add a channel", "1 chat allowed",
-    /// "0 rooms"). Capitalization is the caller's responsibility.
-    public var noun: String {
-        switch self {
-        case .channels: return "channel"
-        case .chats:    return "chat"
-        case .rooms:    return "room"
-        }
-    }
-
-    /// Plural noun for headings + counts.
-    public var pluralNoun: String {
-        switch self {
-        case .channels: return "channels"
-        case .chats:    return "chats"
-        case .rooms:    return "rooms"
-        }
-    }
-
-    /// Map a Hermes platform identifier to the allowlist kind it supports.
-    /// Returns `nil` for platforms without v0.13 allowlist support
-    /// (`cli`, `signal`, `email`, `imessage`, `homeassistant`, `webhook`,
-    /// `yuanbao`, `microsoft-teams`, `feishu`, `discord`).
-    ///
-    /// `googlechat` and `google-chat` both map to `.channels` so we round-trip
-    /// regardless of which spelling Hermes lands on. // TODO(WS-5-Q1)
-    public static func kind(for platform: String) -> GatewayAllowlistKind? {
-        switch platform {
-        case "slack", "mattermost", "google-chat", "googlechat": return .channels
-        case "telegram", "whatsapp":                              return .chats
-        case "matrix", "dingtalk":                                return .rooms
-        default: return nil
-        }
-    }
-}

scarf/Packages/ScarfCore/Sources/ScarfCore/Models/GatewayPlatformSettings.swift

@@ -1,71 +0,0 @@
-import Foundation
-
-/// Per-platform Messaging Gateway settings introduced in Hermes v0.13. Bundles
-/// the allowlist (the platform-appropriate flavor of `allowed_channels` /
-/// `allowed_chats` / `allowed_rooms`) and three behavior toggles
-/// (`busy_ack_enabled`, `gateway_restart_notification`,
-/// `slash_command_notice_ttl_seconds`).
-///
-/// The struct carries all three list fields so a single shape fits every
-/// platform; only the field matching `GatewayAllowlistKind.kind(for:)` is
-/// surfaced in the editor for a given platform. The other two stay empty
-/// and round-trip through the YAML parser unchanged.
-///
-/// **Defaults track Hermes v0.13.** `busyAckEnabled = true`,
-/// `gatewayRestartNotification = false`, `slashCommandNoticeTTLSeconds = 0`
-/// (disabled). An "all-default" instance therefore produces no `gateway:`
-/// block in YAML — see `HermesConfig+YAML` parsing logic which only inserts
-/// an entry into `gatewayPlatforms` when at least one v0.13 key is present
-/// in the file.
-public struct GatewayPlatformSettings: Sendable, Equatable {
-    /// `gateway.platforms.<platform>.allowed_channels` — Slack, Mattermost,
-    /// Google Chat. Empty when the platform doesn't use channels.
-    public var allowedChannels: [String]
-    /// `gateway.platforms.<platform>.allowed_chats` — Telegram, WhatsApp.
-    /// Empty when the platform doesn't use chats.
-    public var allowedChats: [String]
-    /// `gateway.platforms.<platform>.allowed_rooms` — Matrix, DingTalk.
-    /// Empty when the platform doesn't use rooms.
-    public var allowedRooms: [String]
-    /// `gateway.platforms.<platform>.busy_ack_enabled`. Default `true` — set
-    /// to `false` to suppress per-message "agent is working…" acks.
-    public var busyAckEnabled: Bool
-    /// `gateway.platforms.<platform>.gateway_restart_notification`. Default
-    /// `false` — set to `true` to post a "Gateway restarted" notice on boot.
-    public var gatewayRestartNotification: Bool
-    /// `gateway.platforms.<platform>.slash_command_notice_ttl_seconds`.
-    /// Default `0` (disabled). Positive values auto-delete slash-command
-    /// notices after N seconds.
-    public var slashCommandNoticeTTLSeconds: Int
-
-    public init(
-        allowedChannels: [String] = [],
-        allowedChats: [String] = [],
-        allowedRooms: [String] = [],
-        busyAckEnabled: Bool = true,
-        gatewayRestartNotification: Bool = false,
-        slashCommandNoticeTTLSeconds: Int = 0
-    ) {
-        self.allowedChannels = allowedChannels
-        self.allowedChats = allowedChats
-        self.allowedRooms = allowedRooms
-        self.busyAckEnabled = busyAckEnabled
-        self.gatewayRestartNotification = gatewayRestartNotification
-        self.slashCommandNoticeTTLSeconds = slashCommandNoticeTTLSeconds
-    }
-
-    /// All-default instance. `HermesConfig.empty` initializes
-    /// `gatewayPlatforms: [:]` so this is rarely used directly; provided
-    /// for symmetry with the other settings types.
-    public static let empty = GatewayPlatformSettings()
-
-    /// The list field matching this allowlist kind, or `nil` for
-    /// platforms without an allowlist surface.
-    public func items(for kind: GatewayAllowlistKind) -> [String] {
-        switch kind {
-        case .channels: return allowedChannels
-        case .chats:    return allowedChats
-        case .rooms:    return allowedRooms
-        }
-    }
-}

scarf/Packages/ScarfCore/Sources/ScarfCore/Models/HermesConfig.swift

@@ -36,6 +36,13 @@ public struct DisplaySettings: Sendable, Equatable {
     public var toolProgressCommand: Bool
     public var toolPreviewLength: Int
     public var busyInputMode: String           // e.g. "interrupt"
+    /// Static-message translation language. v0.13+. Empty string means
+    /// "follow Hermes default" — the picker collapses both empty-string
+    /// and `"en"` to "English" in display, but only writes a value when
+    /// the user explicitly picks one. Persisted via
+    /// `hermes config set display.language <code>`. Supported values per
+    /// v0.13 release notes: `en`, `zh`, `ja`, `de`, `es`, `fr`, `uk`, `tr`.
+    public var language: String
 
 
     public init(
@@ -46,7 +53,8 @@ public struct DisplaySettings: Sendable, Equatable {
         inlineDiffs: Bool,
         toolProgressCommand: Bool,
         toolPreviewLength: Int,
-        busyInputMode: String
+        busyInputMode: String,
+        language: String = ""
     ) {
         self.skin = skin
         self.compact = compact
@@ -56,6 +64,7 @@ public struct DisplaySettings: Sendable, Equatable {
         self.toolProgressCommand = toolProgressCommand
         self.toolPreviewLength = toolPreviewLength
         self.busyInputMode = busyInputMode
+        self.language = language
     }
     public nonisolated static let empty = DisplaySettings(
         skin: "default",
@@ -65,7 +74,8 @@ public struct DisplaySettings: Sendable, Equatable {
         inlineDiffs: true,
         toolProgressCommand: false,
         toolPreviewLength: 0,
-        busyInputMode: "interrupt"
+        busyInputMode: "interrupt",
+        language: ""
     )
 }
 
@@ -190,6 +200,15 @@ public struct VoiceSettings: Sendable, Equatable {
     public var ttsOpenAIVoice: String
     public var ttsNeuTTSModel: String
     public var ttsNeuTTSDevice: String
+    /// xAI TTS voice identifier. v0.13+ — xAI shipped TTS earlier but the
+    /// custom-voice / cloning surface is the v0.13 add-on.
+    // TODO(WS-8-Q2): Confirm key name vs `tts.xai.voice` /
+    // `tts.xai.voice_id` / a top-level `tts.xai_voice` once a v0.13
+    // host is on hand. The setter / YAML reader follow whatever this
+    // field name implies.
+    public var ttsXAIVoiceID: String
+    /// xAI TTS model identifier. v0.13+. Mirrors the elevenlabs shape.
+    public var ttsXAIModel: String
 
     // STT
     public var sttEnabled: Bool
@@ -217,7 +236,9 @@ public struct VoiceSettings: Sendable, Equatable {
         sttLocalModel: String,
         sttLocalLanguage: String,
         sttOpenAIModel: String,
-        sttMistralModel: String
+        sttMistralModel: String,
+        ttsXAIVoiceID: String = "",
+        ttsXAIModel: String = ""
     ) {
         self.recordKey = recordKey
         self.maxRecordingSeconds = maxRecordingSeconds
@@ -230,6 +251,8 @@ public struct VoiceSettings: Sendable, Equatable {
         self.ttsOpenAIVoice = ttsOpenAIVoice
         self.ttsNeuTTSModel = ttsNeuTTSModel
         self.ttsNeuTTSDevice = ttsNeuTTSDevice
+        self.ttsXAIVoiceID = ttsXAIVoiceID
+        self.ttsXAIModel = ttsXAIModel
         self.sttEnabled = sttEnabled
         self.sttProvider = sttProvider
         self.sttLocalModel = sttLocalModel
@@ -254,7 +277,9 @@ public struct VoiceSettings: Sendable, Equatable {
         sttLocalModel: "base",
         sttLocalLanguage: "",
         sttOpenAIModel: "whisper-1",
-        sttMistralModel: "voxtral-mini-latest"
+        sttMistralModel: "voxtral-mini-latest",
+        ttsXAIVoiceID: "",
+        ttsXAIModel: ""
     )
 }
 
@@ -667,17 +692,6 @@ public struct HermesConfig: Sendable {
     /// useful for cost auditing and screen-recording demos.
     public var runtimeMetadataFooter: Bool
 
-    // -- Hermes v0.13 additions ----------------------------------------
-    // Per-platform Messaging Gateway settings dictionary keyed by Hermes
-    // platform identifier (`slack`, `telegram`, `matrix`, `mattermost`,
-    // `whatsapp`, `dingtalk`, `google-chat`). Populated only for platforms
-    // whose `gateway.platforms.<platform>.*` block exists in config.yaml —
-    // platforms without an explicit block don't appear in the dictionary.
-    // Editing surfaces (per-platform setup forms) read with a `?? .empty`
-    // fallback so a missing entry behaves identically to an all-default
-    // entry.
-    public var gatewayPlatforms: [String: GatewayPlatformSettings]
-
     // Grouped blocks
     public var display: DisplaySettings
     public var terminal: TerminalSettings
@@ -758,13 +772,11 @@ public struct HermesConfig: Sendable {
         homeAssistant: HomeAssistantSettings,
         cacheTTL: String = "5m",
         redactionEnabled: Bool = false,
-        runtimeMetadataFooter: Bool = false,
+        runtimeMetadataFooter: Bool = false
-        gatewayPlatforms: [String: GatewayPlatformSettings] = [:]
     ) {
         self.cacheTTL = cacheTTL
         self.redactionEnabled = redactionEnabled
         self.runtimeMetadataFooter = runtimeMetadataFooter
-        self.gatewayPlatforms = gatewayPlatforms
         self.model = model
         self.provider = provider
         self.maxTurns = maxTurns

scarf/Packages/ScarfCore/Sources/ScarfCore/Models/HermesTool.swift

@@ -60,17 +60,6 @@ public enum KnownPlatforms {
         // platform identifiers.
         HermesToolPlatform(name: "yuanbao", displayName: "Yuanbao 元宝", icon: "bubble.left.and.bubble.right.fill"),
         HermesToolPlatform(name: "microsoft-teams", displayName: "Microsoft Teams", icon: "person.2.fill"),
-        // -- v0.13 additions ---------------------------------------------
-        // Google Chat is the 20th gateway platform. It's a generic
-        // `env_enablement_fn` / `cron_deliver_env_var`-driven adapter; setup
-        // runs through `hermes setup` rather than per-field forms because
-        // the auth dance is OAuth-style and lives outside Scarf. Identifier
-        // is `google-chat` (kebab-case, mirroring `microsoft-teams`).
-        // TODO(WS-5-Q1): verify identifier against Hermes v0.13 GA — if it
-        // ships as `googlechat` instead, update both this entry and
-        // `KnownPlatforms.icon(for:)` below. `GatewayAllowlistKind.kind(for:)`
-        // already accepts both spellings defensively.
-        HermesToolPlatform(name: "google-chat", displayName: "Google Chat", icon: "bubble.left.fill"),
     ]
 
     public static func icon(for platform: String) -> String {
@@ -90,7 +79,6 @@ public enum KnownPlatforms {
         case "imessage": return "message.fill"
         case "yuanbao": return "bubble.left.and.bubble.right.fill"
         case "microsoft-teams": return "person.2.fill"
-        case "google-chat", "googlechat": return "bubble.left.fill"
         default: return "bubble.left"
         }
     }

scarf/Packages/ScarfCore/Sources/ScarfCore/Parsing/HermesConfig+YAML.swift

@@ -225,58 +225,6 @@ public extension HermesConfig {
             cooldownSeconds: int("platforms.homeassistant.extra.cooldown_seconds", default: 30)
         )
 
-        // -- v0.13: per-platform Messaging Gateway settings --------------
-        // Read `gateway.platforms.<platform>.{allowed_channels|allowed_chats|
-        // allowed_rooms|busy_ack_enabled|gateway_restart_notification|
-        // slash_command_notice_ttl_seconds}` and bundle each platform that
-        // has at least one v0.13 key present in the file. Platforms without
-        // an explicit block don't appear in the dictionary, so the
-        // editor's `?? .empty` fallback hands the user the v0.13 defaults
-        // without leaving stale keys littered across the YAML.
-        //
-        // TODO(WS-5-Q2): the `gateway.platforms.*` path is unverified —
-        // Hermes v0.13 may emit allowlists under `platforms.<platform>.*`
-        // (sibling to existing `platforms.slack.reply_to_mode`) instead.
-        // If so, swap the `prefix` line below to `"platforms.\(platform)."`
-        // and update `GatewayConfigWriter` in lockstep.
-        let gatewayAllowlistPlatforms = [
-            "slack", "mattermost", "google-chat",
-            "telegram", "whatsapp",
-            "matrix", "dingtalk",
-        ]
-        var gatewayPlatforms: [String: GatewayPlatformSettings] = [:]
-        for platform in gatewayAllowlistPlatforms {
-            let prefix = "gateway.platforms.\(platform)."
-            let allowedChannels = lists[prefix + "allowed_channels"] ?? []
-            let allowedChats    = lists[prefix + "allowed_chats"]    ?? []
-            let allowedRooms    = lists[prefix + "allowed_rooms"]    ?? []
-            let busy            = bool(prefix + "busy_ack_enabled", default: true)
-            let restartNotice   = bool(prefix + "gateway_restart_notification",
-                                       default: false)
-            let ttl             = int(prefix + "slash_command_notice_ttl_seconds",
-                                      default: 0)
-            // Skip platforms with no v0.13 fields present anywhere in the
-            // file. Without this guard, every supported platform would
-            // round-trip an all-default block back through writes even
-            // when the user never touched the new surface.
-            let isEmpty = allowedChannels.isEmpty
-                && allowedChats.isEmpty
-                && allowedRooms.isEmpty
-                && values[prefix + "busy_ack_enabled"] == nil
-                && values[prefix + "gateway_restart_notification"] == nil
-                && values[prefix + "slash_command_notice_ttl_seconds"] == nil
-            if !isEmpty {
-                gatewayPlatforms[platform] = GatewayPlatformSettings(
-                    allowedChannels: allowedChannels,
-                    allowedChats: allowedChats,
-                    allowedRooms: allowedRooms,
-                    busyAckEnabled: busy,
-                    gatewayRestartNotification: restartNotice,
-                    slashCommandNoticeTTLSeconds: ttl
-                )
-            }
-        }
-
         self.init(
             model: str("model.default", default: "unknown"),
             provider: str("model.provider", default: "unknown"),
@@ -336,8 +284,7 @@ public extension HermesConfig {
             homeAssistant: homeAssistant,
             cacheTTL: str("prompt_caching.cache_ttl", default: "5m"),
             redactionEnabled: bool("redaction.enabled", default: false),
-            runtimeMetadataFooter: bool("agent.runtime_metadata_footer", default: false),
+            runtimeMetadataFooter: bool("agent.runtime_metadata_footer", default: false)
-            gatewayPlatforms: gatewayPlatforms
         )
     }
 }

scarf/Packages/ScarfCore/Sources/ScarfCore/Services/GatewayConfigWriter.swift

@@ -1,396 +0,0 @@
-import Foundation
-
-/// Direct YAML editor for `gateway.platforms.<platform>.allowed_<kind>:` list
-/// blocks. Hermes v0.13 added these list-valued keys, but `hermes config set`
-/// stringifies arrays (the same gotcha that forced Home Assistant's watch
-/// lists to stay read-only). The Messaging Gateway editor sidesteps the CLI
-/// for these keys by editing `~/.hermes/config.yaml` directly.
-///
-/// **Pure-function `setList`** is the heart of the editor — it splits the
-/// YAML into lines, finds (or creates) the targeted block, and splices the
-/// new items in while preserving every byte outside the block. The async
-/// `saveList` wrapper wires it through `ServerContext.readText` /
-/// `writeText`, so the same code path works on `.local` and `.ssh` servers
-/// — local goes through `LocalTransport`, remote round-trips via SCP.
-///
-/// **Scalar fields don't go through here.** `busy_ack_enabled`,
-/// `gateway_restart_notification`, and `slash_command_notice_ttl_seconds`
-/// are scalars that `hermes config set` handles cleanly — `GatewayBehaviorViewModel`
-/// routes those through `PlatformSetupHelpers.saveForm` like every other
-/// platform toggle.
-///
-/// **Why not use a real YAML library?** Same answer as everywhere else in
-/// Scarf: zero external dependencies. The Hermes config flavor is a tightly
-/// scoped subset (indent-based blocks, scalar-or-list values, no anchors /
-/// aliases / flow style), and the targeted edit doesn't need to understand
-/// the full grammar — only "find this block, replace it, preserve the rest".
-public enum GatewayConfigWriter {
-
-    /// Insert or replace `gateway.platforms.<platform>.<key>:` block in the
-    /// YAML, preserving everything else byte-for-byte.
-    ///
-    /// - When `items` is empty, the block (and only the block — siblings
-    ///   stay) is removed from the YAML if present, and the function is a
-    ///   no-op if the block was already absent.
-    /// - When the block is absent and `items` is non-empty, the function
-    ///   appends a `gateway:` / `platforms:` / `<platform>:` scaffold at
-    ///   the end of the file, creating any missing ancestors. This keeps
-    ///   the function idempotent on round-trip but means the new block is
-    ///   appended rather than spliced into an existing top-level
-    ///   `gateway:` section. (See WS-5 plan §Notes for the trade-off; the
-    ///   alternative would mean reflowing existing siblings, which is the
-    ///   exact opposite of "preserve the surrounding YAML byte-for-byte".)
-    /// - When the block is present, its bullet rows are replaced with the
-    ///   new items at the same indent. Items containing YAML-special
-    ///   characters (`:` `#` `@` or leading whitespace) are single-quoted
-    ///   defensively.
-    public static func setList(
-        in yaml: String,
-        platform: String,
-        key: String,
-        items: [String]
-    ) -> String {
-        let blockIndent = 6  // `gateway:\n  platforms:\n    <platform>:\n      <key>:`
-        let itemIndent = 8
-
-        let lines = yaml.components(separatedBy: "\n")
-        let blockHeaderText = "      \(key):"   // indented match for find()
-        let trimmedItems = items.filter { !$0.trimmingCharacters(in: .whitespaces).isEmpty }
-
-        // Locate `      <key>:` whose lineage is gateway → platforms → <platform>.
-        // We find the start of the gateway block, walk down the indent tree, and
-        // bail out if any ancestor is missing.
-        let location = locateBlock(
-            in: lines,
-            platform: platform,
-            key: key
-        )
-
-        switch location {
-        case .found(let blockRange):
-            return replaceBlock(
-                in: lines,
-                blockRange: blockRange,
-                key: key,
-                items: trimmedItems,
-                blockIndent: blockIndent,
-                itemIndent: itemIndent
-            )
-        case .platformPresentKeyMissing(let insertAfter):
-            if trimmedItems.isEmpty {
-                // No-op: empty target, no existing block.
-                return yaml
-            }
-            return spliceNewKey(
-                lines: lines,
-                insertAfterLineIndex: insertAfter,
-                key: key,
-                items: trimmedItems,
-                itemIndent: itemIndent
-            )
-        case .ancestorMissing:
-            if trimmedItems.isEmpty {
-                // Nothing to write, no existing block.
-                return yaml
-            }
-            return appendScaffold(
-                yaml: yaml,
-                platform: platform,
-                key: key,
-                items: trimmedItems
-            )
-        }
-
-        // (unreachable — switch is exhaustive)
-        _ = blockHeaderText
-    }
-
-    /// Async wrapper that reads, mutates, writes via the given context.
-    /// Returns `false` on read or write failure.
-    ///
-    /// The actual I/O happens via `ServerContext.readText` / `writeText`,
-    /// which are `nonisolated` — safe to call from `MainActor` for the
-    /// short config.yaml writes the platform setup forms run. For remote
-    /// hosts the call rounds through SCP under `Task.detached` upstream
-    /// (per Swift 6 concurrency rules in `~/.claude/CLAUDE.md`).
-    public static func saveList(
-        context: ServerContext,
-        platform: String,
-        key: String,
-        items: [String]
-    ) -> Bool {
-        let path = context.paths.configYAML
-        let existing = context.readText(path) ?? ""
-        let updated = setList(in: existing, platform: platform, key: key, items: items)
-        if updated == existing { return true }   // no-op: already correct
-        return context.writeText(path, content: updated)
-    }
-
-    // MARK: - Internals
-
-    /// Result of locating the targeted block in the YAML line array.
-    private enum BlockLocation {
-        /// Block found; the closed range covers the header line + all bullet
-        /// rows attributed to it. Replacing this slice with the new block
-        /// completes the edit.
-        case found(ClosedRange<Int>)
-        /// `gateway → platforms → <platform>` exists, but the leaf `<key>:`
-        /// is absent under it. The associated value is the line index after
-        /// which the new key should be inserted (last line in the platform's
-        /// block, or the platform header itself if the platform's body is
-        /// empty).
-        case platformPresentKeyMissing(insertAfter: Int)
-        /// One of the ancestor section headers is missing. The whole
-        /// scaffold needs to be appended.
-        case ancestorMissing
-    }
-
-    private static func locateBlock(
-        in lines: [String],
-        platform: String,
-        key: String
-    ) -> BlockLocation {
-        // Walk top-to-bottom looking for `gateway:` at indent 0.
-        guard let gatewayIdx = firstIndex(of: lines, headerLineEqualTo: "gateway:", indent: 0) else {
-            return .ancestorMissing
-        }
-        // Inside `gateway:`, find `  platforms:` at indent 2.
-        guard let platformsIdx = firstIndex(
-            of: lines,
-            after: gatewayIdx,
-            headerLineEqualTo: "platforms:",
-            indent: 2,
-            stopWhenIndentLessThan: 2
-        ) else {
-            return .ancestorMissing
-        }
-        // Inside `platforms:`, find `    <platform>:` at indent 4.
-        guard let platformIdx = firstIndex(
-            of: lines,
-            after: platformsIdx,
-            headerLineEqualTo: "\(platform):",
-            indent: 4,
-            stopWhenIndentLessThan: 4
-        ) else {
-            return .ancestorMissing
-        }
-
-        // Inside the platform block, find `<key>:` at indent 6, OR the end
-        // of the platform's body if the key is missing.
-        var keyIdx: Int?
-        var lastBodyIdx = platformIdx
-        var i = platformIdx + 1
-        while i < lines.count {
-            let line = lines[i]
-            let indent = leadingSpaces(line)
-            let trimmed = line.trimmingCharacters(in: .whitespaces)
-            if trimmed.isEmpty || trimmed.hasPrefix("#") {
-                i += 1
-                continue
-            }
-            if indent < 6 {
-                // Out of the platform's block.
-                break
-            }
-            if indent == 6 && trimmed == "\(key):" {
-                keyIdx = i
-                break
-            }
-            lastBodyIdx = i
-            i += 1
-        }
-
-        guard let keyIdx else {
-            return .platformPresentKeyMissing(insertAfter: lastBodyIdx)
-        }
-
-        // Walk down the bullet rows until we leave the block (indent shrinks
-        // below the bullet indent OR we hit a sibling key at indent 6).
-        var endIdx = keyIdx
-        var j = keyIdx + 1
-        while j < lines.count {
-            let line = lines[j]
-            let trimmed = line.trimmingCharacters(in: .whitespaces)
-            if trimmed.isEmpty || trimmed.hasPrefix("#") {
-                j += 1
-                continue
-            }
-            let indent = leadingSpaces(line)
-            // Block-style YAML allows bullets at the same indent as their
-            // parent key; tolerate 6-space `- item` rows alongside the
-            // canonical 8-space ones.
-            let isBullet = trimmed.hasPrefix("- ")
-            if isBullet && (indent == 8 || indent == 6) {
-                endIdx = j
-                j += 1
-                continue
-            }
-            // Anything not a bullet at indent ≥ 8 ends the block.
-            if indent <= 6 {
-                break
-            }
-            // Indent > 8 with no bullet — unusual but tolerate (e.g. inline
-            // continuation). Treat as still in the block and advance.
-            endIdx = j
-            j += 1
-        }
-
-        return .found(keyIdx...endIdx)
-    }
-
-    private static func replaceBlock(
-        in lines: [String],
-        blockRange: ClosedRange<Int>,
-        key: String,
-        items: [String],
-        blockIndent: Int,
-        itemIndent: Int
-    ) -> String {
-        var newLines = Array(lines.prefix(blockRange.lowerBound))
-        if !items.isEmpty {
-            newLines.append("\(spaces(blockIndent))\(key):")
-            for item in items {
-                newLines.append("\(spaces(itemIndent))- \(yamlQuoteIfNeeded(item))")
-            }
-        }
-        // Drop the old block but keep everything after it.
-        let tailStart = blockRange.upperBound + 1
-        if tailStart < lines.count {
-            newLines.append(contentsOf: lines.suffix(from: tailStart))
-        }
-        return newLines.joined(separator: "\n")
-    }
-
-    private static func spliceNewKey(
-        lines: [String],
-        insertAfterLineIndex: Int,
-        key: String,
-        items: [String],
-        itemIndent: Int
-    ) -> String {
-        var newLines = Array(lines.prefix(insertAfterLineIndex + 1))
-        newLines.append("      \(key):")
-        for item in items {
-            newLines.append("\(spaces(itemIndent))- \(yamlQuoteIfNeeded(item))")
-        }
-        if insertAfterLineIndex + 1 < lines.count {
-            newLines.append(contentsOf: lines.suffix(from: insertAfterLineIndex + 1))
-        }
-        return newLines.joined(separator: "\n")
-    }
-
-    private static func appendScaffold(
-        yaml: String,
-        platform: String,
-        key: String,
-        items: [String]
-    ) -> String {
-        var trimmed = yaml
-        // Ensure exactly one trailing newline before the appended block,
-        // so the scaffold sits on its own line cleanly.
-        while trimmed.hasSuffix("\n\n") {
-            trimmed.removeLast()
-        }
-        if !trimmed.isEmpty && !trimmed.hasSuffix("\n") {
-            trimmed.append("\n")
-        }
-        var lines: [String] = []
-        if !trimmed.isEmpty {
-            lines.append("")  // blank separator
-        }
-        lines.append("gateway:")
-        lines.append("  platforms:")
-        lines.append("    \(platform):")
-        lines.append("      \(key):")
-        for item in items {
-            lines.append("        - \(yamlQuoteIfNeeded(item))")
-        }
-        lines.append("")  // trailing newline so subsequent edits append cleanly
-        return trimmed + lines.joined(separator: "\n")
-    }
-
-    // MARK: - YAML scanning helpers
-
-    private static func leadingSpaces(_ line: String) -> Int {
-        var n = 0
-        for c in line {
-            if c == " " { n += 1 } else { break }
-        }
-        return n
-    }
-
-    /// Find the first line whose trimmed content equals `header` AND whose
-    /// leading-space count equals `indent`. Comment-only and blank lines
-    /// are skipped. Returns the line's index or `nil`.
-    private static func firstIndex(
-        of lines: [String],
-        headerLineEqualTo header: String,
-        indent: Int
-    ) -> Int? {
-        for (i, line) in lines.enumerated() {
-            let trimmed = line.trimmingCharacters(in: .whitespaces)
-            if trimmed.isEmpty || trimmed.hasPrefix("#") { continue }
-            if leadingSpaces(line) == indent && trimmed == header {
-                return i
-            }
-        }
-        return nil
-    }
-
-    /// Scoped variant: search starts at `after + 1`, stops if a line at indent
-    /// `< stopWhenIndentLessThan` is encountered (we've left the parent block).
-    private static func firstIndex(
-        of lines: [String],
-        after: Int,
-        headerLineEqualTo header: String,
-        indent: Int,
-        stopWhenIndentLessThan: Int
-    ) -> Int? {
-        var i = after + 1
-        while i < lines.count {
-            let line = lines[i]
-            let trimmed = line.trimmingCharacters(in: .whitespaces)
-            if trimmed.isEmpty || trimmed.hasPrefix("#") {
-                i += 1
-                continue
-            }
-            let lineIndent = leadingSpaces(line)
-            if lineIndent < stopWhenIndentLessThan {
-                return nil
-            }
-            if lineIndent == indent && trimmed == header {
-                return i
-            }
-            i += 1
-        }
-        return nil
-    }
-
-    private static func spaces(_ n: Int) -> String {
-        String(repeating: " ", count: n)
-    }
-
-    /// Quote a YAML scalar if it contains characters that the parser would
-    /// otherwise interpret as structure (colon, hash, leading at-sign, etc.).
-    /// Plain alphanumeric IDs (the common case for Slack channel IDs and
-    /// Telegram numeric chat IDs) are emitted unquoted.
-    private static func yamlQuoteIfNeeded(_ raw: String) -> String {
-        if raw.isEmpty { return "''" }
-        let needsQuoting = raw.contains(":")
-            || raw.contains("#")
-            || raw.contains("&")
-            || raw.contains("*")
-            || raw.contains(">")
-            || raw.contains("|")
-            || raw.first == "@"
-            || raw.first == "-"
-            || raw.first == " "
-            || raw.last == " "
-            || raw.first == "\""
-            || raw.first == "'"
-        if !needsQuoting { return raw }
-        // Single-quote, escaping any embedded single quotes by doubling.
-        let escaped = raw.replacingOccurrences(of: "'", with: "''")
-        return "'\(escaped)'"
-    }
-}

scarf/Packages/ScarfCore/Sources/ScarfCore/Services/HermesGatewayListService.swift

@@ -1,151 +0,0 @@
-import Foundation
-
-/// Cross-profile snapshot returned by `hermes gateway list --json` (Hermes
-/// v0.13+). Each profile is one configured Messaging Gateway instance — most
-/// users have a single `default` profile, but power users keep separate
-/// profiles for work / personal / project-specific accounts.
-public struct GatewayListSnapshot: Sendable, Equatable {
-    public struct ProfileEntry: Sendable, Equatable {
-        public let profile: String
-        public let isRunning: Bool
-        public let pid: Int?
-        public let platforms: [String]   // platform names connected/configured
-
-        public init(
-            profile: String,
-            isRunning: Bool,
-            pid: Int?,
-            platforms: [String]
-        ) {
-            self.profile = profile
-            self.isRunning = isRunning
-            self.pid = pid
-            self.platforms = platforms
-        }
-    }
-    public let profiles: [ProfileEntry]
-    public let detectedAt: Date
-
-    public init(profiles: [ProfileEntry], detectedAt: Date = Date()) {
-        self.profiles = profiles
-        self.detectedAt = detectedAt
-    }
-
-    /// One-line digest for the Messaging Gateway page header. Format depends
-    /// on shape:
-    /// - 0 profiles: `"no profiles configured"`
-    /// - 1 profile, running: `"default profile · running · slack, telegram"`
-    /// - 1 profile, stopped: `"default profile · stopped"`
-    /// - >1 profile: `"3 profiles (2 running) · default: slack, telegram"`
-    public var headerDigest: String {
-        if profiles.isEmpty { return "no profiles configured" }
-
-        if profiles.count == 1 {
-            let p = profiles[0]
-            let state = p.isRunning ? "running" : "stopped"
-            if p.isRunning && !p.platforms.isEmpty {
-                let plats = p.platforms.joined(separator: ", ")
-                return "\(p.profile) profile · \(state) · \(plats)"
-            }
-            return "\(p.profile) profile · \(state)"
-        }
-
-        let runningCount = profiles.filter(\.isRunning).count
-        // Surface the platforms of the first running profile (or first profile
-        // if none are running) so the digest carries one specimen of context
-        // beyond just counts.
-        let highlight = profiles.first(where: \.isRunning) ?? profiles[0]
-        let platsClause: String
-        if highlight.platforms.isEmpty {
-            platsClause = ""
-        } else {
-            platsClause = " · \(highlight.profile): \(highlight.platforms.joined(separator: ", "))"
-        }
-        return "\(profiles.count) profiles (\(runningCount) running)\(platsClause)"
-    }
-}
-
-/// Pure parser + sync fetcher for `hermes gateway list --json`. Pre-v0.13
-/// hosts exit non-zero on the unknown subcommand; the fetcher returns `nil`
-/// in that case so the digest row hides itself.
-///
-/// The detection is **synchronous** — run from a `Task.detached` to avoid
-/// blocking MainActor on remote SSH round-trips. The pure `parse(_:)`
-/// helper has no I/O and can be used in tests against canned JSON.
-public enum HermesGatewayListService {
-
-    /// Parse a JSON blob from `hermes gateway list --json` into a snapshot.
-    /// Tolerant of unknown keys; returns `nil` for unparseable / empty input.
-    ///
-    /// // TODO(WS-5-Q3): the JSON shape below is the plan's best-guess.
-    /// Confirm against actual Hermes v0.13 output once available. Possible
-    /// alternative shapes:
-    /// - root array of profile objects (no `profiles` wrapper)
-    /// - `state` enum string instead of `running` bool
-    /// - `connected_platforms` instead of `platforms`
-    /// The parser is intentionally tolerant so a small shape change can be
-    /// absorbed by tweaking field names without breaking older fixtures.
-    public static func parse(_ json: Data) -> GatewayListSnapshot? {
-        guard !json.isEmpty,
-              let raw = try? JSONSerialization.jsonObject(with: json) else {
-            return nil
-        }
-
-        // Accept both `{"profiles": [...]}` and a bare `[...]` of profiles.
-        let profilesArray: [Any]
-        if let dict = raw as? [String: Any], let arr = dict["profiles"] as? [Any] {
-            profilesArray = arr
-        } else if let arr = raw as? [Any] {
-            profilesArray = arr
-        } else {
-            return nil
-        }
-
-        var entries: [GatewayListSnapshot.ProfileEntry] = []
-        for raw in profilesArray {
-            guard let obj = raw as? [String: Any] else { continue }
-            let profile = (obj["name"] as? String)
-                ?? (obj["profile"] as? String)
-                ?? "default"
-            let isRunning: Bool
-            if let v = obj["running"] as? Bool {
-                isRunning = v
-            } else if let s = obj["state"] as? String {
-                isRunning = s.lowercased() == "running"
-            } else {
-                isRunning = false
-            }
-            let pid = obj["pid"] as? Int
-            let platforms = (obj["platforms"] as? [String])
-                ?? (obj["connected_platforms"] as? [String])
-                ?? []
-            entries.append(GatewayListSnapshot.ProfileEntry(
-                profile: profile,
-                isRunning: isRunning,
-                pid: pid,
-                platforms: platforms
-            ))
-        }
-        return GatewayListSnapshot(profiles: entries)
-    }
-
-    /// Synchronous fetch helper — call from a `Task.detached`. Returns
-    /// `nil` when the subcommand fails (pre-v0.13 host) or when the
-    /// output isn't parseable.
-    public static func fetch(context: ServerContext) -> GatewayListSnapshot? {
-        let transport = context.makeTransport()
-        let executable = context.paths.hermesBinary
-        do {
-            let result = try transport.runProcess(
-                executable: executable,
-                args: ["gateway", "list", "--json"],
-                stdin: nil,
-                timeout: 10
-            )
-            guard result.exitCode == 0 else { return nil }
-            return parse(result.stdout)
-        } catch {
-            return nil
-        }
-    }
-}

scarf/Packages/ScarfCore/Sources/ScarfCore/Services/HermesUpdaterCommandBuilder.swift

@@ -0,0 +1,34 @@
+import Foundation
+
+/// Pure helpers that build argv arrays for `hermes update` invocations.
+///
+/// Lives in ScarfCore so the eventual UI surface (Mac / iOS / remote)
+/// shares flag selection. There is no in-app "Update Hermes" affordance
+/// in v2.7.5 — Sparkle handles Scarf-self-update and `hermes update` is
+/// invoked by users in their terminal — but capability-gated flag logic
+/// is forward-compat plumbing that the future affordance will call. Each
+/// helper is a `nonisolated static` pure function: no transport, no
+/// MainActor, no mocking surface required.
+public enum HermesUpdaterCommandBuilder {
+    /// Argv for an `hermes update` invocation, capability-gated.
+    ///
+    /// Pre-v0.12 hosts only had `update` (no flags). v0.12+ accepts
+    /// `--check` for preflight. v0.13+ accepts `--yes` / `-y` for
+    /// unattended runs (skips the interactive confirmation prompt).
+    /// Flags are silently dropped when the connected host can't honor
+    /// them so callers don't need to branch on capabilities themselves.
+    public static func updateArgv(
+        capabilities: HermesCapabilities,
+        unattended: Bool,
+        checkOnly: Bool
+    ) -> [String] {
+        var args: [String] = ["update"]
+        if checkOnly && capabilities.hasUpdateCheck {
+            args.append("--check")
+        }
+        if unattended && capabilities.hasUpdateNonInteractive {
+            args.append("--yes")
+        }
+        return args
+    }
+}

scarf/Packages/ScarfCore/Sources/ScarfCore/ViewModels/RichChatViewModel.swift

@@ -229,6 +229,12 @@ public final class RichChatViewModel {
     public private(set) var acpOutputTokens = 0
     public private(set) var acpThoughtTokens = 0
     public private(set) var acpCachedReadTokens = 0
+    /// Running count of context compactions Hermes has performed on this
+    /// session. Surfaced as the `🗜 ×N` chip in `SessionInfoBar` when > 0
+    /// and `HermesCapabilities.hasContextCompressionCount` is true. Each
+    /// `session/prompt` response carries the latest server-side total, so
+    /// we replace (with a `max` guard) rather than accumulate.
+    public private(set) var acpCompressionCount = 0
 
     /// Slash commands advertised by the ACP server via `available_commands_update`.
     public private(set) var acpCommands: [HermesSlashCommand] = []
@@ -468,6 +474,7 @@ public final class RichChatViewModel {
         acpErrorHint = nil
         acpErrorDetails = nil
         acpCachedReadTokens = 0
+        acpCompressionCount = 0
         acpCommands = []
         projectScopedCommands = []
         currentTurnStart = nil
@@ -811,6 +818,13 @@ public final class RichChatViewModel {
         acpOutputTokens += response.outputTokens
         acpThoughtTokens += response.thoughtTokens
         acpCachedReadTokens += response.cachedReadTokens
+        // Compression count is a session-wide running total emitted by
+        // Hermes; each prompt response carries the latest value, so we
+        // replace rather than accumulate. The `max` guard tolerates
+        // pre-v0.13 hosts (which emit 0) being upgraded server-side
+        // mid-session — once a real number lands the count resumes from
+        // there rather than snapping back to 0.
+        acpCompressionCount = max(acpCompressionCount, response.compressionCount)
         isAgentWorking = false
         buildMessageGroups()
         // Final position after the prompt settles. Catches fast responses

scarf/Packages/ScarfCore/Tests/ScarfCoreTests/GatewayAllowlistKindTests.swift

@@ -1,70 +0,0 @@
-import Testing
-import Foundation
-@testable import ScarfCore
-
-/// Pure mapping tests for `GatewayAllowlistKind`. Locks down the (platform →
-/// kind) table so a refactor doesn't accidentally drop a platform.
-@Suite struct GatewayAllowlistKindTests {
-
-    @Test func mapsKnownPlatformsToCorrectKind() {
-        #expect(GatewayAllowlistKind.kind(for: "slack")      == .channels)
-        #expect(GatewayAllowlistKind.kind(for: "mattermost") == .channels)
-        #expect(GatewayAllowlistKind.kind(for: "google-chat") == .channels)
-        #expect(GatewayAllowlistKind.kind(for: "telegram")   == .chats)
-        #expect(GatewayAllowlistKind.kind(for: "whatsapp")   == .chats)
-        #expect(GatewayAllowlistKind.kind(for: "matrix")     == .rooms)
-        #expect(GatewayAllowlistKind.kind(for: "dingtalk")   == .rooms)
-    }
-
-    @Test func acceptsBothGoogleChatSpellings() {
-        // // TODO(WS-5-Q1) — both spellings round-trip until Hermes confirms
-        // the wire identifier.
-        #expect(GatewayAllowlistKind.kind(for: "google-chat") == .channels)
-        #expect(GatewayAllowlistKind.kind(for: "googlechat")  == .channels)
-    }
-
-    @Test func returnsNilForPlatformsWithoutAllowlist() {
-        #expect(GatewayAllowlistKind.kind(for: "cli")            == nil)
-        #expect(GatewayAllowlistKind.kind(for: "yuanbao")        == nil)
-        #expect(GatewayAllowlistKind.kind(for: "microsoft-teams") == nil)
-        #expect(GatewayAllowlistKind.kind(for: "discord")        == nil)
-        #expect(GatewayAllowlistKind.kind(for: "signal")         == nil)
-        #expect(GatewayAllowlistKind.kind(for: "homeassistant")  == nil)
-        #expect(GatewayAllowlistKind.kind(for: "")               == nil)
-        #expect(GatewayAllowlistKind.kind(for: "unknown")        == nil)
-    }
-
-    @Test func yamlKeyMatchesHermesContract() {
-        #expect(GatewayAllowlistKind.channels.yamlKey == "allowed_channels")
-        #expect(GatewayAllowlistKind.chats.yamlKey    == "allowed_chats")
-        #expect(GatewayAllowlistKind.rooms.yamlKey    == "allowed_rooms")
-    }
-
-    @Test func nounsAreUserFacingSafe() {
-        #expect(GatewayAllowlistKind.channels.noun == "channel")
-        #expect(GatewayAllowlistKind.chats.noun    == "chat")
-        #expect(GatewayAllowlistKind.rooms.noun    == "room")
-        #expect(GatewayAllowlistKind.channels.pluralNoun == "channels")
-        #expect(GatewayAllowlistKind.chats.pluralNoun    == "chats")
-        #expect(GatewayAllowlistKind.rooms.pluralNoun    == "rooms")
-    }
-
-    @Test func placeholdersAreNonEmpty() {
-        // Smoke test — placeholder strings are advisory; we just don't want
-        // them silently emptied during a refactor.
-        #expect(!GatewayAllowlistKind.channels.inputPlaceholder.isEmpty)
-        #expect(!GatewayAllowlistKind.chats.inputPlaceholder.isEmpty)
-        #expect(!GatewayAllowlistKind.rooms.inputPlaceholder.isEmpty)
-    }
-
-    @Test func gatewayPlatformSettingsItemsForKind() {
-        let s = GatewayPlatformSettings(
-            allowedChannels: ["C01"],
-            allowedChats: ["@user"],
-            allowedRooms: ["!room:matrix.org"]
-        )
-        #expect(s.items(for: .channels) == ["C01"])
-        #expect(s.items(for: .chats)    == ["@user"])
-        #expect(s.items(for: .rooms)    == ["!room:matrix.org"])
-    }
-}

scarf/Packages/ScarfCore/Tests/ScarfCoreTests/GatewayConfigWriterTests.swift

@@ -1,276 +0,0 @@
-import Testing
-import Foundation
-@testable import ScarfCore
-
-/// Round-trip + idempotence tests for `GatewayConfigWriter.setList`. Pure
-/// `String` operations only — runs cleanly on Linux SwiftPM.
-@Suite struct GatewayConfigWriterTests {
-
-    // MARK: - Insert
-
-    @Test func setListInsertsBlockOnEmpty() {
-        let yaml = ""
-        let updated = GatewayConfigWriter.setList(
-            in: yaml,
-            platform: "slack",
-            key: "allowed_channels",
-            items: ["C0123ABCD", "C0456EFGH"]
-        )
-        #expect(updated.contains("gateway:"))
-        #expect(updated.contains("  platforms:"))
-        #expect(updated.contains("    slack:"))
-        #expect(updated.contains("      allowed_channels:"))
-        #expect(updated.contains("- C0123ABCD"))
-        #expect(updated.contains("- C0456EFGH"))
-    }
-
-    @Test func setListAppendsScaffoldPreservingPriorContent() {
-        let yaml = """
-        model:
-          default: gpt-4o
-          provider: openai
-        """
-        let updated = GatewayConfigWriter.setList(
-            in: yaml,
-            platform: "slack",
-            key: "allowed_channels",
-            items: ["C01"]
-        )
-        // Original content preserved verbatim at the top.
-        #expect(updated.contains("model:"))
-        #expect(updated.contains("  default: gpt-4o"))
-        #expect(updated.contains("  provider: openai"))
-        // New scaffold appended.
-        #expect(updated.contains("gateway:"))
-        #expect(updated.contains("    slack:"))
-        #expect(updated.contains("- C01"))
-    }
-
-    // MARK: - Replace
-
-    @Test func setListReplacesExistingBlock() {
-        let yaml = """
-        gateway:
-          platforms:
-            slack:
-              allowed_channels:
-                - C_OLD_1
-                - C_OLD_2
-        """
-        let updated = GatewayConfigWriter.setList(
-            in: yaml,
-            platform: "slack",
-            key: "allowed_channels",
-            items: ["C_NEW_1"]
-        )
-        #expect(updated.contains("- C_NEW_1"))
-        #expect(!updated.contains("- C_OLD_1"))
-        #expect(!updated.contains("- C_OLD_2"))
-    }
-
-    @Test func setListPreservesScalarSiblings() {
-        // The `busy_ack_enabled` scalar sibling of `allowed_channels` must
-        // stay byte-for-byte after a list-write to the same platform.
-        let yaml = """
-        gateway:
-          platforms:
-            slack:
-              allowed_channels:
-                - C_OLD
-              busy_ack_enabled: false
-              gateway_restart_notification: true
-        """
-        let updated = GatewayConfigWriter.setList(
-            in: yaml,
-            platform: "slack",
-            key: "allowed_channels",
-            items: ["C_NEW"]
-        )
-        #expect(updated.contains("- C_NEW"))
-        #expect(!updated.contains("- C_OLD"))
-        // Scalars at the same indent must survive.
-        #expect(updated.contains("busy_ack_enabled: false"))
-        #expect(updated.contains("gateway_restart_notification: true"))
-    }
-
-    @Test func setListPreservesOtherPlatformsBlocks() {
-        // Editing slack must not touch matrix.
-        let yaml = """
-        gateway:
-          platforms:
-            slack:
-              allowed_channels:
-                - C_SLACK
-            matrix:
-              allowed_rooms:
-                - '!room1:matrix.org'
-                - '!room2:matrix.org'
-        """
-        let updated = GatewayConfigWriter.setList(
-            in: yaml,
-            platform: "slack",
-            key: "allowed_channels",
-            items: ["C_SLACK_NEW"]
-        )
-        #expect(updated.contains("- C_SLACK_NEW"))
-        // Matrix block intact.
-        #expect(updated.contains("    matrix:"))
-        #expect(updated.contains("'!room1:matrix.org'"))
-        #expect(updated.contains("'!room2:matrix.org'"))
-    }
-
-    // MARK: - Remove
-
-    @Test func setListWithEmptyItemsRemovesBlock() {
-        let yaml = """
-        gateway:
-          platforms:
-            slack:
-              allowed_channels:
-                - C01
-                - C02
-              busy_ack_enabled: true
-        """
-        let updated = GatewayConfigWriter.setList(
-            in: yaml,
-            platform: "slack",
-            key: "allowed_channels",
-            items: []
-        )
-        // Block removed; sibling scalar preserved.
-        #expect(!updated.contains("allowed_channels:"))
-        #expect(!updated.contains("- C01"))
-        #expect(!updated.contains("- C02"))
-        #expect(updated.contains("busy_ack_enabled: true"))
-    }
-
-    @Test func setListWithEmptyItemsOnAbsentBlockIsNoOp() {
-        let yaml = """
-        model:
-          default: gpt-4o
-        """
-        let updated = GatewayConfigWriter.setList(
-            in: yaml,
-            platform: "slack",
-            key: "allowed_channels",
-            items: []
-        )
-        #expect(updated == yaml)
-    }
-
-    // MARK: - Idempotence
-
-    @Test func setListIsIdempotent() {
-        let yaml = """
-        model:
-          default: gpt-4o
-        """
-        let once = GatewayConfigWriter.setList(
-            in: yaml,
-            platform: "telegram",
-            key: "allowed_chats",
-            items: ["@alice", "@bob"]
-        )
-        let twice = GatewayConfigWriter.setList(
-            in: once,
-            platform: "telegram",
-            key: "allowed_chats",
-            items: ["@alice", "@bob"]
-        )
-        #expect(once == twice)
-    }
-
-    @Test func setListReplaceThenReplaceIsStable() {
-        let yaml = ""
-        let a = GatewayConfigWriter.setList(
-            in: yaml, platform: "matrix", key: "allowed_rooms",
-            items: ["!a:m", "!b:m"]
-        )
-        let b = GatewayConfigWriter.setList(
-            in: a, platform: "matrix", key: "allowed_rooms",
-            items: ["!c:m"]
-        )
-        #expect(b.contains("- '!c:m'"))
-        #expect(!b.contains("'!a:m'"))
-        #expect(!b.contains("'!b:m'"))
-    }
-
-    // MARK: - Quoting
-
-    @Test func setListQuotesItemsContainingColons() {
-        // Matrix room IDs contain `:` — must be single-quoted.
-        let yaml = ""
-        let updated = GatewayConfigWriter.setList(
-            in: yaml, platform: "matrix", key: "allowed_rooms",
-            items: ["!RoomId:matrix.org"]
-        )
-        #expect(updated.contains("'!RoomId:matrix.org'"))
-    }
-
-    @Test func setListQuotesItemsStartingWithAt() {
-        // Telegram usernames `@alice`.
-        let yaml = ""
-        let updated = GatewayConfigWriter.setList(
-            in: yaml, platform: "telegram", key: "allowed_chats",
-            items: ["@alice"]
-        )
-        #expect(updated.contains("'@alice'"))
-    }
-
-    @Test func setListLeavesPlainAlphanumericUnquoted() {
-        // Slack channel IDs are A-Z0-9 — emit unquoted for readability.
-        let yaml = ""
-        let updated = GatewayConfigWriter.setList(
-            in: yaml, platform: "slack", key: "allowed_channels",
-            items: ["C0123ABCD"]
-        )
-        #expect(updated.contains("- C0123ABCD"))
-        #expect(!updated.contains("'C0123ABCD'"))
-    }
-
-    @Test func setListEscapesEmbeddedSingleQuotes() {
-        let yaml = ""
-        let updated = GatewayConfigWriter.setList(
-            in: yaml, platform: "slack", key: "allowed_channels",
-            items: ["weird:'name"]
-        )
-        // Embedded single quote doubled per YAML spec.
-        #expect(updated.contains("'weird:''name'"))
-    }
-
-    // MARK: - Insertion when ancestors exist but key is absent
-
-    @Test func setListInsertsKeyUnderExistingPlatformBlock() {
-        // `gateway → platforms → slack` exists with a busy_ack_enabled
-        // scalar; `allowed_channels` is missing. Add it without disturbing
-        // the scalar sibling.
-        let yaml = """
-        gateway:
-          platforms:
-            slack:
-              busy_ack_enabled: false
-        """
-        let updated = GatewayConfigWriter.setList(
-            in: yaml, platform: "slack", key: "allowed_channels",
-            items: ["C42"]
-        )
-        #expect(updated.contains("busy_ack_enabled: false"))
-        #expect(updated.contains("allowed_channels:"))
-        #expect(updated.contains("- C42"))
-    }
-
-    // MARK: - Round-trip with the YAML loader
-
-    @Test func roundTripsThroughHermesConfigYAMLLoader() {
-        // Write a list, then parse the result through HermesConfig+YAML and
-        // confirm we read back what we wrote.
-        var yaml = ""
-        yaml = GatewayConfigWriter.setList(
-            in: yaml, platform: "slack", key: "allowed_channels",
-            items: ["C01", "C02"]
-        )
-        let cfg = HermesConfig(yaml: yaml)
-        let block = cfg.gatewayPlatforms["slack"]
-        #expect(block?.allowedChannels == ["C01", "C02"])
-    }
-}

scarf/Packages/ScarfCore/Tests/ScarfCoreTests/HermesGatewayListServiceTests.swift

@@ -1,131 +0,0 @@
-import Testing
-import Foundation
-@testable import ScarfCore
-
-/// Parser tests for `hermes gateway list --json`. Pure — no transport, no
-/// process calls.
-@Suite struct HermesGatewayListServiceTests {
-
-    private func data(_ s: String) -> Data { s.data(using: .utf8)! }
-
-    @Test func parsesSingleProfileSinglePlatform() {
-        let json = data(#"""
-        {"profiles":[{"name":"default","running":true,"pid":1234,
-        "platforms":["slack","telegram"]}]}
-        """#)
-        let snap = HermesGatewayListService.parse(json)
-        #expect(snap?.profiles.count == 1)
-        #expect(snap?.profiles[0].profile == "default")
-        #expect(snap?.profiles[0].pid == 1234)
-        #expect(snap?.profiles[0].isRunning == true)
-        #expect(snap?.profiles[0].platforms == ["slack", "telegram"])
-    }
-
-    @Test func parsesMultipleProfiles() {
-        let json = data(#"""
-        {"profiles":[
-            {"name":"work","running":true,"pid":2001,"platforms":["slack"]},
-            {"name":"personal","running":false,"platforms":["telegram"]}
-        ]}
-        """#)
-        let snap = HermesGatewayListService.parse(json)
-        #expect(snap?.profiles.count == 2)
-        #expect(snap?.profiles[0].profile == "work")
-        #expect(snap?.profiles[0].isRunning == true)
-        #expect(snap?.profiles[1].profile == "personal")
-        #expect(snap?.profiles[1].isRunning == false)
-        #expect(snap?.profiles[1].pid == nil)
-    }
-
-    @Test func parsesBareArrayShape() {
-        // Tolerance for a top-level array (no `profiles` wrapper).
-        let json = data(#"""
-        [{"name":"default","running":true,"pid":42,"platforms":["discord"]}]
-        """#)
-        let snap = HermesGatewayListService.parse(json)
-        #expect(snap?.profiles.count == 1)
-        #expect(snap?.profiles[0].profile == "default")
-    }
-
-    @Test func toleratesAlternateFieldNames() {
-        // `profile` instead of `name`, `state` instead of `running`,
-        // `connected_platforms` instead of `platforms` — defensive defaults
-        // keep the parser happy if Hermes ships any of these.
-        let json = data(#"""
-        {"profiles":[{"profile":"alt","state":"running","pid":7,
-        "connected_platforms":["matrix"]}]}
-        """#)
-        let snap = HermesGatewayListService.parse(json)
-        #expect(snap?.profiles[0].profile == "alt")
-        #expect(snap?.profiles[0].isRunning == true)
-        #expect(snap?.profiles[0].platforms == ["matrix"])
-    }
-
-    @Test func returnsNilOnEmptyData() {
-        #expect(HermesGatewayListService.parse(Data()) == nil)
-    }
-
-    @Test func returnsNilOnUnparseableJSON() {
-        let json = data("not-json")
-        #expect(HermesGatewayListService.parse(json) == nil)
-    }
-
-    @Test func returnsEmptySnapshotOnEmptyProfilesArray() {
-        let json = data(#"{"profiles":[]}"#)
-        let snap = HermesGatewayListService.parse(json)
-        #expect(snap?.profiles.isEmpty == true)
-    }
-
-    @Test func toleratesUnknownKeys() {
-        // Forward-compat: a future v0.13.x Hermes adds extra fields, parser
-        // still works.
-        let json = data(#"""
-        {"profiles":[{"name":"default","running":true,"platforms":["slack"],
-        "future_field":"value","another":42}]}
-        """#)
-        let snap = HermesGatewayListService.parse(json)
-        #expect(snap?.profiles[0].profile == "default")
-    }
-
-    // MARK: - headerDigest
-
-    @Test func headerDigestEmptyProfiles() {
-        let snap = GatewayListSnapshot(profiles: [])
-        #expect(snap.headerDigest == "no profiles configured")
-    }
-
-    @Test func headerDigestSingleProfileRunning() {
-        let snap = GatewayListSnapshot(profiles: [
-            .init(profile: "default", isRunning: true, pid: 100,
-                  platforms: ["slack", "telegram"])
-        ])
-        #expect(snap.headerDigest == "default profile · running · slack, telegram")
-    }
-
-    @Test func headerDigestSingleProfileStopped() {
-        let snap = GatewayListSnapshot(profiles: [
-            .init(profile: "default", isRunning: false, pid: nil, platforms: [])
-        ])
-        #expect(snap.headerDigest == "default profile · stopped")
-    }
-
-    @Test func headerDigestMultipleProfilesSomeRunning() {
-        let snap = GatewayListSnapshot(profiles: [
-            .init(profile: "work", isRunning: true, pid: 1, platforms: ["slack"]),
-            .init(profile: "home", isRunning: false, pid: nil, platforms: ["matrix"]),
-            .init(profile: "extra", isRunning: true, pid: 2, platforms: [])
-        ])
-        // 3 profiles total, 2 running, surface first running profile's
-        // platform list as the highlight.
-        #expect(snap.headerDigest == "3 profiles (2 running) · work: slack")
-    }
-
-    @Test func headerDigestMultipleProfilesNoneRunning() {
-        let snap = GatewayListSnapshot(profiles: [
-            .init(profile: "a", isRunning: false, pid: nil, platforms: ["slack"]),
-            .init(profile: "b", isRunning: false, pid: nil, platforms: ["matrix"])
-        ])
-        // No running profile — fall back to the first profile's platforms.
-        #expect(snap.headerDigest == "2 profiles (0 running) · a: slack")
-    }
-}

scarf/Packages/ScarfCore/Tests/ScarfCoreTests/M0dViewModelsTests.swift

@@ -162,6 +162,47 @@ import Foundation
         // start → false.
         #expect(vm.supportsCompress == false)
         #expect(vm.hasBroaderCommandMenu == false)
+        // v0.13: compression count starts at 0 so the SessionInfoBar chip
+        // stays hidden on fresh sessions.
+        #expect(vm.acpCompressionCount == 0)
+    }
+
+    @Test @MainActor func richChatTracksCompressionCountFromPromptResults() {
+        let vm = RichChatViewModel(context: .local)
+        let response = ACPPromptResult(
+            stopReason: "end_turn",
+            inputTokens: 100, outputTokens: 50,
+            thoughtTokens: 20, cachedReadTokens: 10,
+            compressionCount: 3
+        )
+        vm.handleACPEvent(.promptComplete(sessionId: "s", response: response))
+        #expect(vm.acpCompressionCount == 3)
+
+        // Subsequent prompts overwrite (with a max guard) — the server
+        // emits a session-wide running total, not a per-prompt delta.
+        let next = ACPPromptResult(
+            stopReason: "end_turn",
+            inputTokens: 0, outputTokens: 0,
+            thoughtTokens: 0, cachedReadTokens: 0,
+            compressionCount: 5
+        )
+        vm.handleACPEvent(.promptComplete(sessionId: "s", response: next))
+        #expect(vm.acpCompressionCount == 5)
+
+        // A pre-v0.13 host mid-session emits 0; the max-guard keeps the
+        // last real value rather than snapping back.
+        let stale = ACPPromptResult(
+            stopReason: "end_turn",
+            inputTokens: 0, outputTokens: 0,
+            thoughtTokens: 0, cachedReadTokens: 0,
+            compressionCount: 0
+        )
+        vm.handleACPEvent(.promptComplete(sessionId: "s", response: stale))
+        #expect(vm.acpCompressionCount == 5)
+
+        // reset() clears the counter so a fresh session starts clean.
+        vm.reset()
+        #expect(vm.acpCompressionCount == 0)
     }
 
     @Test @MainActor func messageGroupDerivedProperties() {

scarf/Packages/ScarfCore/Tests/ScarfCoreTests/M0eUpdaterTests.swift

@@ -0,0 +1,87 @@
+import Testing
+import Foundation
+@testable import ScarfCore
+
+/// Pure-function matrix for `HermesUpdaterCommandBuilder.updateArgv`. The
+/// builder degrades flags silently when the connected host can't honor
+/// them, so the "is the right flag emitted on the right version?" matrix
+/// is the meaningful test surface.
+@Suite struct M0eUpdaterTests {
+
+    // MARK: - Helpers
+
+    private func caps(_ versionLine: String?) -> HermesCapabilities {
+        guard let line = versionLine else { return .empty }
+        return HermesCapabilities.parseLine(line)
+    }
+
+    // MARK: - Pre-v0.12 (no flags supported)
+
+    @Test func preV012_returnsBareUpdateRegardlessOfFlags() {
+        let pre = caps("Hermes Agent v0.11.0 (2026.4.23)")
+        #expect(HermesUpdaterCommandBuilder.updateArgv(
+            capabilities: pre, unattended: false, checkOnly: false
+        ) == ["update"])
+        #expect(HermesUpdaterCommandBuilder.updateArgv(
+            capabilities: pre, unattended: true, checkOnly: false
+        ) == ["update"])
+        #expect(HermesUpdaterCommandBuilder.updateArgv(
+            capabilities: pre, unattended: true, checkOnly: true
+        ) == ["update"])
+    }
+
+    @Test func unknownVersion_returnsBareUpdate() {
+        // No detected version means we can't guarantee any flag is
+        // honored; defensively emit the bare verb.
+        #expect(HermesUpdaterCommandBuilder.updateArgv(
+            capabilities: .empty, unattended: true, checkOnly: true
+        ) == ["update"])
+    }
+
+    // MARK: - v0.12 (--check supported, --yes is not)
+
+    @Test func v012_checkOnly_emitsCheckFlag() {
+        let v012 = caps("Hermes Agent v0.12.0 (2026.4.30)")
+        #expect(HermesUpdaterCommandBuilder.updateArgv(
+            capabilities: v012, unattended: false, checkOnly: true
+        ) == ["update", "--check"])
+    }
+
+    @Test func v012_unattended_dropsYesFlag() {
+        // v0.12 doesn't honor --yes; the helper degrades silently.
+        let v012 = caps("Hermes Agent v0.12.0 (2026.4.30)")
+        #expect(HermesUpdaterCommandBuilder.updateArgv(
+            capabilities: v012, unattended: true, checkOnly: false
+        ) == ["update"])
+    }
+
+    @Test func v012_checkOnlyAndUnattended_emitsOnlyCheck() {
+        let v012 = caps("Hermes Agent v0.12.0 (2026.4.30)")
+        #expect(HermesUpdaterCommandBuilder.updateArgv(
+            capabilities: v012, unattended: true, checkOnly: true
+        ) == ["update", "--check"])
+    }
+
+    // MARK: - v0.13 (full flag support)
+
+    @Test func v013_unattended_emitsYesFlag() {
+        let v013 = caps("Hermes Agent v0.13.0 (2026.5.7)")
+        #expect(HermesUpdaterCommandBuilder.updateArgv(
+            capabilities: v013, unattended: true, checkOnly: false
+        ) == ["update", "--yes"])
+    }
+
+    @Test func v013_checkOnlyAndUnattended_emitsBothFlags() {
+        let v013 = caps("Hermes Agent v0.13.0 (2026.5.7)")
+        #expect(HermesUpdaterCommandBuilder.updateArgv(
+            capabilities: v013, unattended: true, checkOnly: true
+        ) == ["update", "--check", "--yes"])
+    }
+
+    @Test func v013_neither_emitsBareUpdate() {
+        let v013 = caps("Hermes Agent v0.13.0 (2026.5.7)")
+        #expect(HermesUpdaterCommandBuilder.updateArgv(
+            capabilities: v013, unattended: false, checkOnly: false
+        ) == ["update"])
+    }
+}

scarf/Packages/ScarfCore/Tests/ScarfCoreTests/M6ConfigCronTests.swift

@@ -228,87 +228,6 @@ import Foundation
         #expect(c.timezone == "America/New_York")
     }
 
-    // MARK: - v0.13 gateway.platforms.<platform> block
-
-    @Test func gatewayPlatformsEmptyByDefault() {
-        let c = HermesConfig(yaml: "")
-        #expect(c.gatewayPlatforms.isEmpty)
-    }
-
-    @Test func parsesGatewayAllowlistsForSlack() {
-        let yaml = """
-        gateway:
-          platforms:
-            slack:
-              allowed_channels:
-                - C01
-                - C02
-              busy_ack_enabled: false
-              gateway_restart_notification: true
-              slash_command_notice_ttl_seconds: 120
-        """
-        let cfg = HermesConfig(yaml: yaml)
-        let block = cfg.gatewayPlatforms["slack"]
-        #expect(block?.allowedChannels == ["C01", "C02"])
-        #expect(block?.busyAckEnabled == false)
-        #expect(block?.gatewayRestartNotification == true)
-        #expect(block?.slashCommandNoticeTTLSeconds == 120)
-    }
-
-    @Test func parsesGatewayAllowlistsForTelegramAndMatrix() {
-        let yaml = """
-        gateway:
-          platforms:
-            telegram:
-              allowed_chats:
-                - '@alice'
-                - '12345'
-            matrix:
-              allowed_rooms:
-                - '!room:matrix.org'
-        """
-        let cfg = HermesConfig(yaml: yaml)
-        #expect(cfg.gatewayPlatforms["telegram"]?.allowedChats == ["@alice", "12345"])
-        #expect(cfg.gatewayPlatforms["matrix"]?.allowedRooms == ["!room:matrix.org"])
-    }
-
-    @Test func gatewayBlockCoexistsWithLegacyPlatformBlocks() {
-        // Regression: legacy `platforms.slack.reply_to_mode` and
-        // `matrix.require_mention` must keep parsing when the new
-        // `gateway:` block is also present — no key collisions.
-        let yaml = """
-        platforms:
-          slack:
-            reply_to_mode: all
-        matrix:
-          require_mention: false
-        gateway:
-          platforms:
-            slack:
-              allowed_channels:
-                - C01
-        """
-        let cfg = HermesConfig(yaml: yaml)
-        #expect(cfg.slack.replyToMode == "all")
-        #expect(cfg.matrix.requireMention == false)
-        #expect(cfg.gatewayPlatforms["slack"]?.allowedChannels == ["C01"])
-    }
-
-    @Test func gatewayPlatformsSkipsPlatformsWithoutV013Keys() {
-        // The `gateway:` block exists but only Slack has a v0.13 key —
-        // platforms without keys must NOT appear in `gatewayPlatforms`.
-        let yaml = """
-        gateway:
-          platforms:
-            slack:
-              busy_ack_enabled: true
-        """
-        let cfg = HermesConfig(yaml: yaml)
-        #expect(cfg.gatewayPlatforms["slack"] != nil)
-        #expect(cfg.gatewayPlatforms["mattermost"] == nil)
-        #expect(cfg.gatewayPlatforms["telegram"] == nil)
-    }
-
     @Test func cronScheduleMemberwise() {
         let s = CronSchedule(
             kind: "cron",

scarf/Packages/ScarfCore/Tests/ScarfCoreTests/ScarfCoreSmokeTests.swift

@@ -242,6 +242,15 @@ import Foundation
             thoughtTokens: 20, cachedReadTokens: 10
         )
         #expect(prompt.stopReason == "end_turn")
+        // v0.13: compressionCount has a 0 default for legacy callers.
+        #expect(prompt.compressionCount == 0)
+
+        let v013Prompt = ACPPromptResult(
+            stopReason: "end_turn", inputTokens: 0, outputTokens: 0,
+            thoughtTokens: 0, cachedReadTokens: 0,
+            compressionCount: 7
+        )
+        #expect(v013Prompt.compressionCount == 7)
     }
 
     @Test func projectDashboardInitChain() {

scarf/scarf/Core/Services/HermesFileService.swift

@@ -84,7 +84,11 @@ struct HermesFileService: Sendable {
             inlineDiffs: bool("display.inline_diffs", default: true),
             toolProgressCommand: bool("display.tool_progress_command", default: false),
             toolPreviewLength: int("display.tool_preview_length", default: 0),
-            busyInputMode: str("display.busy_input_mode", default: "interrupt")
+            busyInputMode: str("display.busy_input_mode", default: "interrupt"),
+            // v0.13: empty default means "key absent — agent uses its own
+            // default" (English). The picker writes a real value when the
+            // user explicitly chooses one.
+            language: str("display.language", default: "")
         )
 
         let terminal = TerminalSettings(
@@ -131,7 +135,12 @@ struct HermesFileService: Sendable {
             sttLocalModel: str("stt.local.model", default: "base"),
             sttLocalLanguage: str("stt.local.language"),
             sttOpenAIModel: str("stt.openai.model", default: "whisper-1"),
-            sttMistralModel: str("stt.mistral.model", default: "voxtral-mini-latest")
+            sttMistralModel: str("stt.mistral.model", default: "voxtral-mini-latest"),
+            // TODO(WS-8-Q2): Verify key names. Mirroring the elevenlabs
+            // shape (`<provider>.voice_id` + `<provider>.model`); v0.13
+            // source might use `tts.xai.voice` or `tts.xai.model_id`.
+            ttsXAIVoiceID: str("tts.xai.voice_id"),
+            ttsXAIModel: str("tts.xai.model")
         )
 
         func aux(_ name: String) -> AuxiliaryModel {
@@ -254,47 +263,6 @@ struct HermesFileService: Sendable {
             cooldownSeconds: int("platforms.homeassistant.extra.cooldown_seconds", default: 30)
         )
 
-        // -- v0.13: per-platform Messaging Gateway settings --------------
-        // Mirrors the canonical extractor in
-        // `ScarfCore/Parsing/HermesConfig+YAML.swift`. Behaviour parity
-        // matters: both parsers must populate `gatewayPlatforms` the same
-        // way so iOS and Mac surfaces stay in lockstep.
-        // TODO(WS-5-Q2): YAML key path unverified — see the comment in the
-        // ScarfCore extractor for the resolution path.
-        let gatewayAllowlistPlatforms = [
-            "slack", "mattermost", "google-chat",
-            "telegram", "whatsapp",
-            "matrix", "dingtalk",
-        ]
-        var gatewayPlatforms: [String: GatewayPlatformSettings] = [:]
-        for platform in gatewayAllowlistPlatforms {
-            let prefix = "gateway.platforms.\(platform)."
-            let allowedChannels = lists[prefix + "allowed_channels"] ?? []
-            let allowedChats    = lists[prefix + "allowed_chats"]    ?? []
-            let allowedRooms    = lists[prefix + "allowed_rooms"]    ?? []
-            let busy            = bool(prefix + "busy_ack_enabled", default: true)
-            let restartNotice   = bool(prefix + "gateway_restart_notification",
-                                       default: false)
-            let ttl             = int(prefix + "slash_command_notice_ttl_seconds",
-                                      default: 0)
-            let isEmpty = allowedChannels.isEmpty
-                && allowedChats.isEmpty
-                && allowedRooms.isEmpty
-                && values[prefix + "busy_ack_enabled"] == nil
-                && values[prefix + "gateway_restart_notification"] == nil
-                && values[prefix + "slash_command_notice_ttl_seconds"] == nil
-            if !isEmpty {
-                gatewayPlatforms[platform] = GatewayPlatformSettings(
-                    allowedChannels: allowedChannels,
-                    allowedChats: allowedChats,
-                    allowedRooms: allowedRooms,
-                    busyAckEnabled: busy,
-                    gatewayRestartNotification: restartNotice,
-                    slashCommandNoticeTTLSeconds: ttl
-                )
-            }
-        }
-
         return HermesConfig(
             model: str("model.default", default: "unknown"),
             provider: str("model.provider", default: "unknown"),
@@ -354,8 +322,7 @@ struct HermesFileService: Sendable {
             homeAssistant: homeAssistant,
             cacheTTL: str("prompt_caching.cache_ttl", default: "5m"),
             redactionEnabled: bool("redaction.enabled", default: false),
-            runtimeMetadataFooter: bool("agent.runtime_metadata_footer", default: false),
+            runtimeMetadataFooter: bool("agent.runtime_metadata_footer", default: false)
-            gatewayPlatforms: gatewayPlatforms
         )
     }
 

scarf/scarf/Features/Chat/Views/ChatTranscriptPane.swift

@@ -11,6 +11,7 @@ struct ChatTranscriptPane: View {
     @Bindable var chatViewModel: ChatViewModel
     var onSend: (String, [ChatImageAttachment]) -> Void
     var isEnabled: Bool
+    @Environment(\.hermesCapabilities) private var capabilitiesStore
 
     var body: some View {
         VStack(spacing: 0) {
@@ -20,8 +21,10 @@ struct ChatTranscriptPane: View {
                 acpInputTokens: richChat.acpInputTokens,
                 acpOutputTokens: richChat.acpOutputTokens,
                 acpThoughtTokens: richChat.acpThoughtTokens,
+                acpCompressionCount: richChat.acpCompressionCount,
                 projectName: chatViewModel.currentProjectName,
-                gitBranch: chatViewModel.currentGitBranch
+                gitBranch: chatViewModel.currentGitBranch,
+                capabilities: capabilitiesStore?.capabilities ?? .empty
             )
             Divider()
 

scarf/scarf/Features/Chat/Views/SessionInfoBar.swift

@@ -9,6 +9,11 @@ struct SessionInfoBar: View {
     var acpInputTokens: Int = 0
     var acpOutputTokens: Int = 0
     var acpThoughtTokens: Int = 0
+    /// Number of context compactions Hermes has run on this session. v0.13+
+    /// surface — capability-gated by the bar so pre-v0.13 hosts never see
+    /// the chip even if a stale value somehow trickles through. Defaults
+    /// to 0 so existing callers and previews don't need to be updated.
+    var acpCompressionCount: Int = 0
     /// Name of the Scarf project this session is attributed to, when
     /// applicable. Nil for plain global chats. Drives the folder-chip
     /// indicator rendered before the session title. Resolved by
@@ -20,6 +25,11 @@ struct SessionInfoBar: View {
     /// name. Nil for non-project chats and for projects that aren't
     /// git repos.
     var gitBranch: String? = nil
+    /// Capability snapshot for v0.13+ surfaces. Defaulted so previews and
+    /// pre-v0.13 hosts render the v2.7.5 layout unchanged. Coordinated
+    /// with WS-2 — both WSes add `capabilities` to this view; whichever
+    /// lands first establishes the prop.
+    var capabilities: HermesCapabilities = .empty
 
     /// Active Hermes profile name (issue #50). Resolved on each body
     /// re-evaluation; the resolver caches for 5s so this is cheap.
@@ -96,6 +106,21 @@ struct SessionInfoBar: View {
                     Label("\(formatTokens(reasonToks)) reasoning", systemImage: "brain")
                 }
 
+                // v0.13: Hermes surfaces a running count of automatic
+                // context compactions. Render only when the host is on
+                // v0.13+ AND the count is non-zero, so a pre-v0.13 host
+                // (which always reports 0) sees no chip, and a v0.13 host
+                // sees the chip the first time the agent compacts.
+                if capabilities.hasContextCompressionCount && acpCompressionCount > 0 {
+                    Label(
+                        "×\(acpCompressionCount)",
+                        systemImage: "arrow.down.right.and.arrow.up.left"
+                    )
+                    .scarfStyle(.caption)
+                    .foregroundStyle(ScarfColor.foregroundMuted)
+                    .help("Hermes auto-compacted this session's context \(acpCompressionCount) time\(acpCompressionCount == 1 ? "" : "s")")
+                }
+
                 if let cost = session.displayCostUSD {
                     let formattedCost = cost.formatted(.currency(code: "USD").precision(.fractionLength(4)))
                     Label(session.costIsActual ? formattedCost : "\(formattedCost) est.", systemImage: "dollarsign.circle")

scarf/scarf/Features/Chat/Views/SlashCommandMenu.swift

@@ -87,7 +87,16 @@ private struct SlashCommandRow: View {
                         .fontWeight(.semibold)
                         .foregroundStyle(isSelected ? ScarfColor.accentActive : ScarfColor.foregroundPrimary)
                     if let hint = command.argumentHint {
-                        Text("<\(hint)>")
+                        // v0.13: Hermes may emit hints already wrapped in
+                        // brackets (e.g. `[name]` for the optional `/new
+                        // <name>` argument exposed by `hasNewWithSessionName`).
+                        // Avoid double-wrapping — bracketed hints pass through
+                        // verbatim while older `guidance`-style hints (no
+                        // brackets) still render as `<guidance>`.
+                        let display = hint.hasPrefix("<") || hint.hasPrefix("[")
+                            ? hint
+                            : "<\(hint)>"
+                        Text(display)
                             .font(ScarfFont.monoSmall)
                             .foregroundStyle(ScarfColor.foregroundFaint)
                     }

scarf/scarf/Features/Gateway/ViewModels/GatewayViewModel.swift

@@ -1,13 +1,7 @@
 import Foundation
 import ScarfCore
 
-// **Local rename for v0.13 / WS-5.** The user-facing label is "Messaging
+struct GatewayInfo {
-// Gateway"; the type names mirror that. The `SidebarSection.gateway` enum
-// case + `gateway_state.json` / `gateway.log` paths intentionally stay
-// unchanged — those aren't user-facing strings, and renaming them would
-// churn unrelated callers without changing what users see.
-
-struct MessagingGatewayInfo {
     let pid: Int?
     let state: String
     let exitReason: String?
@@ -43,48 +37,32 @@ struct PendingPairing: Identifiable {
 }
 
 @Observable
-@MainActor
+final class GatewayViewModel {
-final class MessagingGatewayViewModel {
     let context: ServerContext
-    /// Capability snapshot at view-init time. Read for the v0.13 cross-
-    /// profile digest (`hasGatewayList`); other v0.13 surfaces live on
-    /// per-platform setup views. `.empty` is fine outside the per-server
-    /// `ContextBoundRoot` (Previews, smoke tests).
-    let capabilities: HermesCapabilities
 
-    init(context: ServerContext = .local, capabilities: HermesCapabilities = .empty) {
+    init(context: ServerContext = .local) {
         self.context = context
-        self.capabilities = capabilities
     }
 
-    var gateway = MessagingGatewayInfo(pid: nil, state: "unknown", exitReason: nil, startTime: nil, updatedAt: nil, platforms: [], isLoaded: false, isStale: false)
+    var gateway = GatewayInfo(pid: nil, state: "unknown", exitReason: nil, startTime: nil, updatedAt: nil, platforms: [], isLoaded: false, isStale: false)
     var approvedUsers: [PairedUser] = []
     var pendingPairings: [PendingPairing] = []
     var isLoading = false
     var actionMessage: String?
-    /// `hermes gateway list --json` snapshot. `nil` when the verb fails
-    /// (pre-v0.13 host or no profiles registered yet) — the digest row
-    /// hides itself in that case.
-    var gatewayList: GatewayListSnapshot?
 
     func load() {
         isLoading = true
         let ctx = context
-        let caps = capabilities
         Task.detached { [weak self] in
             // Two sync transport calls + two CLI invocations — substantial
             // remote latency. Detach the whole load and commit at the end.
             let status = Self.fetchGatewayStatus(context: ctx)
             let pairing = Self.fetchPairing(context: ctx)
-            let listSnap = caps.hasGatewayList
-                ? HermesGatewayListService.fetch(context: ctx)
-                : nil
             await MainActor.run { [weak self] in
                 guard let self else { return }
                 self.gateway = status
                 self.approvedUsers = pairing.approved
                 self.pendingPairings = pairing.pending
-                self.gatewayList = listSnap
                 self.isLoading = false
             }
         }
@@ -92,7 +70,7 @@ final class MessagingGatewayViewModel {
 
     /// Static form of the gateway-status walk so the detached load can call
     /// it without bouncing back to MainActor.
-    nonisolated private static func fetchGatewayStatus(context: ServerContext) -> MessagingGatewayInfo {
+    nonisolated private static func fetchGatewayStatus(context: ServerContext) -> GatewayInfo {
         let stateJSON = context.readData(context.paths.gatewayStateJSON)
         var pid: Int?
         var state = "unknown"
@@ -124,7 +102,7 @@ final class MessagingGatewayViewModel {
         let isLoaded = statusOutput.contains("service is loaded")
         let isStale = statusOutput.contains("stale")
 
-        return MessagingGatewayInfo(
+        return GatewayInfo(
             pid: pid, state: state, exitReason: exitReason,
             startTime: startTime, updatedAt: updatedAt,
             platforms: platforms, isLoaded: isLoaded, isStale: isStale

scarf/scarf/Features/Gateway/Views/GatewayView.swift

@@ -2,24 +2,12 @@ import SwiftUI
 import ScarfCore
 import ScarfDesign
 
-/// Messaging Gateway page. Routes outbound chat to Discord / Telegram /
-/// Slack / etc. — distinct from the v0.10 **Tool Gateway** (Nous Portal
-/// subscription routing for web search / image / TTS / browser), which
-/// lives under `Features/Health/`. The user-facing label here is always
-/// "Messaging Gateway"; the SwiftUI struct stays `GatewayView` because
-/// `ContentView` references it by name (rename-on-touch invariant —
-/// avoid churning unrelated callers).
 struct GatewayView: View {
-    @State private var viewModel: MessagingGatewayViewModel
+    @State private var viewModel: GatewayViewModel
     @Environment(HermesFileWatcher.self) private var fileWatcher
-    @Environment(\.hermesCapabilities) private var capabilitiesStore
 
     init(context: ServerContext) {
-        // Capabilities arrive via environment after init runs, so the VM
+        _viewModel = State(initialValue: GatewayViewModel(context: context))
-        // is constructed with `.empty` and refreshed on first appear via
-        // `attach(capabilities:)`. Same pattern as the per-platform setup
-        // views — see `MessagingGatewayViewModel.capabilities` doc comment.
-        _viewModel = State(initialValue: MessagingGatewayViewModel(context: context))
     }
 
 
@@ -27,15 +15,10 @@ struct GatewayView: View {
         VStack(spacing: 0) {
             ScarfPageHeader(
                 "Messaging Gateway",
-                subtitle: "Outbound channel bridge — Discord, Telegram, Slack, Google Chat, etc."
+                subtitle: "Outbound channel bridge — Discord, Telegram, Slack, etc."
             )
             ScrollView {
-                VStack(alignment: .leading, spacing: ScarfSpace.s4) {
+                VStack(alignment: .leading, spacing: 24) {
-                    if let snap = viewModel.gatewayList,
-                       viewModel.capabilities.hasGatewayList,
-                       !snap.profiles.isEmpty {
-                        crossProfileDigest(snap)
-                    }
                     serviceSection
                     platformsSection
                     pairingSection
@@ -46,58 +29,14 @@ struct GatewayView: View {
         }
         .background(ScarfColor.backgroundPrimary)
         .navigationTitle("Messaging Gateway")
-        .onAppear {
+        .onAppear { viewModel.load() }
-            attachCapabilitiesIfNeeded()
-            viewModel.load()
-        }
         .onChange(of: fileWatcher.lastChangeDate) { viewModel.load() }
     }
 
-    /// Re-create the VM with the resolved capabilities the first time the
-    /// store hands us non-empty data. Same shape as `KanbanBoardView`'s
-    /// `attach` helper.
-    private func attachCapabilitiesIfNeeded() {
-        guard let store = capabilitiesStore,
-              store.capabilities.detected,
-              !viewModel.capabilities.detected else { return }
-        viewModel = MessagingGatewayViewModel(
-            context: viewModel.context,
-            capabilities: store.capabilities
-        )
-    }
-
-    // MARK: - v0.13 cross-profile digest
-
-    /// One-line summary above the gateway controls when the host is on
-    /// v0.13+ and `hermes gateway list --json` returned at least one
-    /// profile. Doubly-guarded — `hasGatewayList` AND `profiles != []`
-    /// — so a v0.13 host with no registered profiles doesn't render
-    /// an empty pill.
-    private func crossProfileDigest(_ snap: GatewayListSnapshot) -> some View {
-        HStack(spacing: ScarfSpace.s2) {
-            Image(systemName: "dot.radiowaves.left.and.right")
-                .foregroundStyle(ScarfColor.accent)
-            Text(snap.headerDigest)
-                .scarfStyle(.captionStrong)
-                .foregroundStyle(ScarfColor.foregroundPrimary)
-            Spacer()
-        }
-        .padding(.horizontal, ScarfSpace.s3)
-        .padding(.vertical, ScarfSpace.s2)
-        .background(
-            RoundedRectangle(cornerRadius: ScarfRadius.md, style: .continuous)
-                .fill(ScarfColor.backgroundSecondary)
-        )
-        .overlay(
-            RoundedRectangle(cornerRadius: ScarfRadius.md, style: .continuous)
-                .strokeBorder(ScarfColor.border, lineWidth: 1)
-        )
-    }
-
     // MARK: - Service
 
     private var serviceSection: some View {
-        VStack(alignment: .leading, spacing: ScarfSpace.s3) {
+        VStack(alignment: .leading, spacing: 12) {
             HStack {
                 Text("Service")
                     .font(.headline)
@@ -107,20 +46,15 @@ struct GatewayView: View {
                         .font(.caption)
                         .foregroundStyle(.secondary)
                 }
-                HStack(spacing: ScarfSpace.s2) {
+                HStack(spacing: 8) {
                     Button("Start") { viewModel.startGateway() }
-                        .buttonStyle(ScarfPrimaryButton())
-                        .controlSize(.small)
                     Button("Stop") { viewModel.stopGateway() }
-                        .buttonStyle(ScarfSecondaryButton())
-                        .controlSize(.small)
                     Button("Restart") { viewModel.restartGateway() }
-                        .buttonStyle(ScarfSecondaryButton())
-                        .controlSize(.small)
                 }
+                .controlSize(.small)
             }
 
-            HStack(spacing: ScarfSpace.s3) {
+            HStack(spacing: 16) {
                 StatusBadge(
                     label: viewModel.gateway.state,
                     isActive: viewModel.gateway.state == "running"
@@ -163,7 +97,7 @@ struct GatewayView: View {
     // MARK: - Platforms
 
     private var platformsSection: some View {
-        VStack(alignment: .leading, spacing: ScarfSpace.s2) {
+        VStack(alignment: .leading, spacing: 8) {
             Text("Platforms")
                 .font(.headline)
             if viewModel.gateway.platforms.isEmpty {
@@ -171,7 +105,7 @@ struct GatewayView: View {
                     .font(.caption)
                     .foregroundStyle(.secondary)
             } else {
-                HStack(spacing: ScarfSpace.s3) {
+                HStack(spacing: 12) {
                     ForEach(viewModel.gateway.platforms) { platform in
                         VStack(spacing: 6) {
                             Image(systemName: platform.icon)
@@ -185,9 +119,9 @@ struct GatewayView: View {
                             )
                         }
                         .frame(maxWidth: .infinity)
-                        .padding(ScarfSpace.s3)
+                        .padding(12)
                         .background(.quaternary.opacity(0.5))
-                        .clipShape(RoundedRectangle(cornerRadius: ScarfRadius.md))
+                        .clipShape(RoundedRectangle(cornerRadius: 8))
                     }
                 }
             }
@@ -197,12 +131,12 @@ struct GatewayView: View {
     // MARK: - Pairing
 
     private var pairingSection: some View {
-        VStack(alignment: .leading, spacing: ScarfSpace.s3) {
+        VStack(alignment: .leading, spacing: 12) {
             Text("Paired Users")
                 .font(.headline)
 
             if !viewModel.pendingPairings.isEmpty {
-                VStack(alignment: .leading, spacing: ScarfSpace.s2) {
+                VStack(alignment: .leading, spacing: 8) {
                     Label("Pending Approvals", systemImage: "clock.badge.questionmark")
                         .font(.caption.bold())
                         .foregroundStyle(.orange)
@@ -216,12 +150,12 @@ struct GatewayView: View {
                                 viewModel.approvePairing(platform: pending.platform, code: pending.code)
                             }
                             .controlSize(.small)
-                            .buttonStyle(ScarfPrimaryButton())
+                            .buttonStyle(.borderedProminent)
                         }
                         .font(.caption)
-                        .padding(ScarfSpace.s2)
+                        .padding(8)
                         .background(.orange.opacity(0.1))
-                        .clipShape(RoundedRectangle(cornerRadius: ScarfRadius.sm))
+                        .clipShape(RoundedRectangle(cornerRadius: 6))
                     }
                 }
             }
@@ -248,9 +182,9 @@ struct GatewayView: View {
                         }
                         .controlSize(.small)
                     }
-                    .padding(ScarfSpace.s2)
+                    .padding(8)
                     .background(.quaternary.opacity(0.3))
-                    .clipShape(RoundedRectangle(cornerRadius: ScarfRadius.sm))
+                    .clipShape(RoundedRectangle(cornerRadius: 6))
                 }
             }
         }

scarf/scarf/Features/Platforms/ViewModels/PlatformSetup/GatewayBehaviorViewModel.swift

@@ -1,140 +0,0 @@
-import Foundation
-import ScarfCore
-import os
-
-/// View-model for the v0.13 Messaging Gateway behavior subsection composed
-/// into each per-platform setup view. Owns the four v0.13 controls
-/// (allowlist + three behavior toggles) so the existing per-platform VMs
-/// don't grow another set of fields.
-///
-/// Capability-gated. Pre-v0.13 hosts skip the entire subsection (the
-/// owning view returns `EmptyView` when none of the v0.13 flags is on),
-/// so this VM never has its `save()` called against a host that can't
-/// honor it.
-@Observable
-@MainActor
-final class GatewayBehaviorViewModel {
-    private static let logger = Logger(subsystem: "com.scarf", category: "GatewayBehavior")
-
-    let platform: String
-    let context: ServerContext
-    let capabilities: HermesCapabilities
-    /// Allowlist kind for this platform, or `nil` for platforms without
-    /// an allowlist surface (Discord, Signal, etc. — `GatewayBehaviorSection`
-    /// short-circuits before instantiating this VM in that case, but the
-    /// field is `nil` for safety).
-    let kind: GatewayAllowlistKind?
-
-    // Allowlist
-    var items: [String] = []
-
-    // Behavior toggles
-    var busyAckEnabled: Bool = true
-    var gatewayRestartNotification: Bool = false
-    var slashCommandNoticeTTLSeconds: Int = 0
-
-    var message: String?
-    var isSaving: Bool = false
-
-    init(
-        platform: String,
-        capabilities: HermesCapabilities,
-        context: ServerContext = .local
-    ) {
-        self.platform = platform
-        self.capabilities = capabilities
-        self.context = context
-        self.kind = GatewayAllowlistKind.kind(for: platform)
-    }
-
-    /// Hydrate from `~/.hermes/config.yaml`. Called from the section's
-    /// `.onAppear`. Empty when the platform has no `gateway:` block in
-    /// the file — defaults match v0.13 server-side defaults so the form
-    /// looks identical to a fresh-install host.
-    func load() {
-        let cfg = HermesFileService(context: context).loadConfig()
-        let block = cfg.gatewayPlatforms[platform] ?? .empty
-        if let kind {
-            switch kind {
-            case .channels: items = block.allowedChannels
-            case .chats:    items = block.allowedChats
-            case .rooms:    items = block.allowedRooms
-            }
-        } else {
-            items = []
-        }
-        busyAckEnabled              = block.busyAckEnabled
-        gatewayRestartNotification  = block.gatewayRestartNotification
-        slashCommandNoticeTTLSeconds = block.slashCommandNoticeTTLSeconds
-    }
-
-    /// Persist edits in two phases:
-    ///
-    /// 1. **Allowlist write** via `GatewayConfigWriter.saveList` — direct
-    ///    YAML edit, since `hermes config set` can't write list values.
-    ///    Skipped when the platform has no `kind` (no allowlist surface)
-    ///    or the host doesn't advertise `hasGatewayAllowlists`.
-    /// 2. **Scalar saves** via `PlatformSetupHelpers.saveForm` for the
-    ///    three v0.13 behavior toggles. Each gated on its own capability
-    ///    flag; the TTL field rides on the `hasGatewayBusyAckToggle ‖
-    ///    hasGatewayRestartNotification` proxy (see WS-5 plan §Open Questions
-    ///    Q5 + WS-1 Decision F).
-    func save() {
-        isSaving = true
-        defer {
-            isSaving = false
-            DispatchQueue.main.asyncAfter(deadline: .now() + 3) { [weak self] in
-                self?.message = nil
-            }
-        }
-
-        // Step 1: list write via direct YAML edit. Detached so the SCP
-        // round-trip on remote hosts doesn't block MainActor — local
-        // writes are still cheap, but the same posture works for both.
-        if let kind, capabilities.hasGatewayAllowlists {
-            let trimmed = items
-                .map { $0.trimmingCharacters(in: .whitespaces) }
-                .filter { !$0.isEmpty }
-            let ok = GatewayConfigWriter.saveList(
-                context: context,
-                platform: platform,
-                key: kind.yamlKey,
-                items: trimmed
-            )
-            if !ok {
-                Self.logger.warning("GatewayConfigWriter.saveList failed for \(self.platform, privacy: .public)")
-                message = "Failed to write allowlist to config.yaml"
-                return
-            }
-        }
-
-        // Step 2: scalar saves via `hermes config set`.
-        var configKV: [String: String] = [:]
-        let prefix = "gateway.platforms.\(platform)."
-        if capabilities.hasGatewayBusyAckToggle {
-            configKV[prefix + "busy_ack_enabled"] =
-                PlatformSetupHelpers.envBool(busyAckEnabled)
-        }
-        if capabilities.hasGatewayRestartNotification {
-            configKV[prefix + "gateway_restart_notification"] =
-                PlatformSetupHelpers.envBool(gatewayRestartNotification)
-        }
-        // TTL field rides on either of the v0.13 toggles being available —
-        // proxy gating per WS-1 Decision F + WS-5 Q5. // TODO(WS-5-Q5)
-        if capabilities.hasGatewayBusyAckToggle
-            || capabilities.hasGatewayRestartNotification {
-            configKV[prefix + "slash_command_notice_ttl_seconds"] =
-                String(slashCommandNoticeTTLSeconds)
-        }
-
-        if configKV.isEmpty {
-            message = "Allowlist saved — restart gateway to apply"
-            return
-        }
-
-        let result = PlatformSetupHelpers.saveForm(
-            context: context, envPairs: [:], configKV: configKV
-        )
-        message = result
-    }
-}

scarf/scarf/Features/Platforms/Views/PlatformSetup/Components/AllowlistEditor.swift

@@ -1,103 +0,0 @@
-import SwiftUI
-import ScarfCore
-import ScarfDesign
-
-/// Reusable list-of-strings editor for v0.13 cross-platform allowlists.
-/// Shape: a vertical stack of rows, each with a delete glyph; an "Add row"
-/// button at the bottom appends an empty entry.
-///
-/// Stateless — binds to the parent VM's `items` array. The VM owns
-/// persistence and change tracking; this view is pure presentation.
-struct AllowlistEditor: View {
-    @Binding var items: [String]
-    let kind: GatewayAllowlistKind
-
-    var body: some View {
-        VStack(alignment: .leading, spacing: ScarfSpace.s2) {
-            HStack {
-                Text("Allowed \(kind.pluralNoun)")
-                    .scarfStyle(.caption)
-                    .foregroundStyle(ScarfColor.foregroundMuted)
-                Spacer()
-                Text(itemsCountLabel)
-                    .scarfStyle(.caption)
-                    .foregroundStyle(ScarfColor.foregroundFaint)
-            }
-
-            if items.isEmpty {
-                Text("No restrictions — agent responds in any \(kind.noun).")
-                    .scarfStyle(.caption)
-                    .foregroundStyle(ScarfColor.foregroundFaint)
-                    .padding(.vertical, ScarfSpace.s2)
-            } else {
-                VStack(spacing: 4) {
-                    ForEach(Array(items.enumerated()), id: \.offset) { idx, _ in
-                        AllowlistRow(
-                            value: Binding(
-                                get: { items[safe: idx] ?? "" },
-                                set: { newValue in
-                                    guard idx < items.count else { return }
-                                    items[idx] = newValue
-                                }
-                            ),
-                            placeholder: kind.inputPlaceholder,
-                            onDelete: {
-                                guard idx < items.count else { return }
-                                items.remove(at: idx)
-                            }
-                        )
-                    }
-                }
-            }
-
-            HStack {
-                Button {
-                    items.append("")
-                } label: {
-                    Label("Add \(kind.noun)", systemImage: "plus.circle")
-                        .font(.caption)
-                }
-                .buttonStyle(.borderless)
-                Spacer()
-            }
-        }
-        .padding(.horizontal, ScarfSpace.s3)
-        .padding(.vertical, ScarfSpace.s2)
-    }
-
-    private var itemsCountLabel: String {
-        let nonEmpty = items.filter { !$0.trimmingCharacters(in: .whitespaces).isEmpty }.count
-        if nonEmpty == 0 { return "0 \(kind.pluralNoun)" }
-        if nonEmpty == 1 { return "1 \(kind.noun)" }
-        return "\(nonEmpty) \(kind.pluralNoun)"
-    }
-}
-
-private struct AllowlistRow: View {
-    @Binding var value: String
-    let placeholder: String
-    let onDelete: () -> Void
-
-    var body: some View {
-        HStack(spacing: ScarfSpace.s2) {
-            TextField(placeholder, text: $value)
-                .textFieldStyle(.roundedBorder)
-                .font(ScarfFont.monoSmall)
-            Button {
-                onDelete()
-            } label: {
-                Image(systemName: "minus.circle.fill")
-                    .foregroundStyle(ScarfColor.danger)
-            }
-            .buttonStyle(.plain)
-            .help("Remove")
-        }
-    }
-}
-
-private extension Array {
-    subscript(safe index: Int) -> Element? {
-        guard index >= 0, index < count else { return nil }
-        return self[index]
-    }
-}

scarf/scarf/Features/Platforms/Views/PlatformSetup/Components/GatewayBehaviorSection.swift

@@ -1,96 +0,0 @@
-import SwiftUI
-import ScarfCore
-import ScarfDesign
-
-/// v0.13 Messaging Gateway behavior subsection composed into each per-
-/// platform setup view (Slack, Mattermost, Telegram, WhatsApp, Matrix,
-/// Google Chat). Owns its own `@State` view-model so the existing per-
-/// platform VMs don't grow another set of fields.
-///
-/// **Capability gating.** Hides itself entirely on pre-v0.13 hosts
-/// (returns `EmptyView` when none of the three v0.13 flags is on). Each
-/// internal control gates on its own flag, so a host that gains, say,
-/// `hasGatewayAllowlists` but not `hasGatewayBusyAckToggle` still gets
-/// the allowlist editor with the toggles hidden.
-struct GatewayBehaviorSection: View {
-    let platform: String
-    let capabilities: HermesCapabilities
-    let context: ServerContext
-
-    @State private var viewModel: GatewayBehaviorViewModel
-
-    init(platform: String, capabilities: HermesCapabilities, context: ServerContext) {
-        self.platform = platform
-        self.capabilities = capabilities
-        self.context = context
-        _viewModel = State(initialValue: GatewayBehaviorViewModel(
-            platform: platform,
-            capabilities: capabilities,
-            context: context
-        ))
-    }
-
-    var body: some View {
-        // Pre-v0.13 host — hide the entire subsection so the existing
-        // platform forms look unchanged. Critical regression invariant
-        // per WS-5 plan §"How to test" #1.
-        if !capabilities.hasGatewayAllowlists
-            && !capabilities.hasGatewayBusyAckToggle
-            && !capabilities.hasGatewayRestartNotification {
-            EmptyView()
-        } else {
-            content
-        }
-    }
-
-    private var content: some View {
-        VStack(alignment: .leading, spacing: ScarfSpace.s3) {
-            SettingsSection(title: "Gateway behavior (v0.13+)", icon: "dot.radiowaves.left.and.right") {
-                if capabilities.hasGatewayAllowlists,
-                   let kind = viewModel.kind {
-                    AllowlistEditor(
-                        items: $viewModel.items,
-                        kind: kind
-                    )
-                }
-                if capabilities.hasGatewayBusyAckToggle {
-                    ToggleRow(
-                        label: "Send 'Agent is working…' ack",
-                        isOn: viewModel.busyAckEnabled
-                    ) { viewModel.busyAckEnabled = $0 }
-                }
-                if capabilities.hasGatewayRestartNotification {
-                    ToggleRow(
-                        label: "Post 'Gateway restarted' notice on boot",
-                        isOn: viewModel.gatewayRestartNotification
-                    ) { viewModel.gatewayRestartNotification = $0 }
-                }
-                // TTL field rides on either v0.13 toggle being available
-                // — proxy gating per WS-1 Decision F. // TODO(WS-5-Q5)
-                if capabilities.hasGatewayBusyAckToggle
-                    || capabilities.hasGatewayRestartNotification {
-                    StepperRow(
-                        label: "Auto-delete slash-command notices (s)",
-                        value: viewModel.slashCommandNoticeTTLSeconds,
-                        range: 0...3600,
-                        step: 5
-                    ) { viewModel.slashCommandNoticeTTLSeconds = $0 }
-                }
-            }
-
-            HStack {
-                if let msg = viewModel.message {
-                    Label(msg, systemImage: "checkmark.circle.fill")
-                        .font(.caption)
-                        .foregroundStyle(.green)
-                }
-                Spacer()
-                Button("Save behavior") { viewModel.save() }
-                    .buttonStyle(ScarfPrimaryButton())
-                    .controlSize(.small)
-                    .disabled(viewModel.isSaving)
-            }
-        }
-        .onAppear { viewModel.load() }
-    }
-}

scarf/scarf/Features/Platforms/Views/PlatformSetup/MatrixSetupView.swift

@@ -4,13 +4,7 @@ import ScarfDesign
 
 struct MatrixSetupView: View {
     @State private var viewModel: MatrixSetupViewModel
-    @Environment(\.hermesCapabilities) private var capabilitiesStore
+    init(context: ServerContext) { _viewModel = State(initialValue: MatrixSetupViewModel(context: context)) }
-    let context: ServerContext
-
-    init(context: ServerContext) {
-        self.context = context
-        _viewModel = State(initialValue: MatrixSetupViewModel(context: context))
-    }
 
 
     var body: some View {
@@ -51,13 +45,6 @@ struct MatrixSetupView: View {
             }
 
             saveBar
-
-            // v0.13 Messaging Gateway behavior — self-hides on pre-v0.13.
-            GatewayBehaviorSection(
-                platform: "matrix",
-                capabilities: capabilitiesStore?.capabilities ?? .empty,
-                context: context
-            )
         }
         .onAppear { viewModel.load() }
     }

scarf/scarf/Features/Platforms/Views/PlatformSetup/MattermostSetupView.swift

@@ -4,13 +4,7 @@ import ScarfDesign
 
 struct MattermostSetupView: View {
     @State private var viewModel: MattermostSetupViewModel
-    @Environment(\.hermesCapabilities) private var capabilitiesStore
+    init(context: ServerContext) { _viewModel = State(initialValue: MattermostSetupViewModel(context: context)) }
-    let context: ServerContext
-
-    init(context: ServerContext) {
-        self.context = context
-        _viewModel = State(initialValue: MattermostSetupViewModel(context: context))
-    }
 
 
     var body: some View {
@@ -34,13 +28,6 @@ struct MattermostSetupView: View {
             }
 
             saveBar
-
-            // v0.13 Messaging Gateway behavior — self-hides on pre-v0.13.
-            GatewayBehaviorSection(
-                platform: "mattermost",
-                capabilities: capabilitiesStore?.capabilities ?? .empty,
-                context: context
-            )
         }
         .onAppear { viewModel.load() }
     }

scarf/scarf/Features/Platforms/Views/PlatformSetup/SlackSetupView.swift

@@ -4,13 +4,7 @@ import ScarfDesign
 
 struct SlackSetupView: View {
     @State private var viewModel: SlackSetupViewModel
-    @Environment(\.hermesCapabilities) private var capabilitiesStore
+    init(context: ServerContext) { _viewModel = State(initialValue: SlackSetupViewModel(context: context)) }
-    let context: ServerContext
-
-    init(context: ServerContext) {
-        self.context = context
-        _viewModel = State(initialValue: SlackSetupViewModel(context: context))
-    }
 
 
     var body: some View {
@@ -36,13 +30,6 @@ struct SlackSetupView: View {
             }
 
             saveBar
-
-            // v0.13 Messaging Gateway behavior — self-hides on pre-v0.13.
-            GatewayBehaviorSection(
-                platform: "slack",
-                capabilities: capabilitiesStore?.capabilities ?? .empty,
-                context: context
-            )
         }
         .onAppear { viewModel.load() }
     }

scarf/scarf/Features/Platforms/Views/PlatformSetup/TelegramSetupView.swift

@@ -4,13 +4,7 @@ import ScarfDesign
 
 struct TelegramSetupView: View {
     @State private var viewModel: TelegramSetupViewModel
-    @Environment(\.hermesCapabilities) private var capabilitiesStore
+    init(context: ServerContext) { _viewModel = State(initialValue: TelegramSetupViewModel(context: context)) }
-    let context: ServerContext
-
-    init(context: ServerContext) {
-        self.context = context
-        _viewModel = State(initialValue: TelegramSetupViewModel(context: context))
-    }
 
 
     var body: some View {
@@ -35,13 +29,6 @@ struct TelegramSetupView: View {
             }
 
             saveBar
-
-            // v0.13 Messaging Gateway behavior — self-hides on pre-v0.13.
-            GatewayBehaviorSection(
-                platform: "telegram",
-                capabilities: capabilitiesStore?.capabilities ?? .empty,
-                context: context
-            )
         }
         .onAppear { viewModel.load() }
     }

scarf/scarf/Features/Platforms/Views/PlatformSetup/WhatsAppSetupView.swift

@@ -4,13 +4,7 @@ import ScarfDesign
 
 struct WhatsAppSetupView: View {
     @State private var viewModel: WhatsAppSetupViewModel
-    @Environment(\.hermesCapabilities) private var capabilitiesStore
+    init(context: ServerContext) { _viewModel = State(initialValue: WhatsAppSetupViewModel(context: context)) }
-    let context: ServerContext
-
-    init(context: ServerContext) {
-        self.context = context
-        _viewModel = State(initialValue: WhatsAppSetupViewModel(context: context))
-    }
 
 
     var body: some View {
@@ -35,14 +29,6 @@ struct WhatsAppSetupView: View {
             }
 
             saveBar
-
-            // v0.13 Messaging Gateway behavior — self-hides on pre-v0.13.
-            GatewayBehaviorSection(
-                platform: "whatsapp",
-                capabilities: capabilitiesStore?.capabilities ?? .empty,
-                context: context
-            )
-
             Divider()
             pairingSection
         }

scarf/scarf/Features/Platforms/Views/PlatformsView.swift

@@ -5,33 +5,6 @@ import ScarfDesign
 struct PlatformsView: View {
     @State private var viewModel: PlatformsViewModel
     @Environment(HermesFileWatcher.self) private var fileWatcher
-    @Environment(\.hermesCapabilities) private var capabilitiesStore
-
-    /// Capabilities resolved at view-eval time. Defaults to `.empty` outside
-    /// the per-server `ContextBoundRoot`. Used to filter `KnownPlatforms.all`
-    /// for v0.13-only entries (Google Chat) — see `visiblePlatforms` for
-    /// the deliberate asymmetry: pre-v0.12 hosts still see Yuanbao + Teams
-    /// unfiltered, by design.
-    private var capabilities: HermesCapabilities {
-        capabilitiesStore?.capabilities ?? .empty
-    }
-
-    /// Capability-filtered platform list. Today only **Google Chat** is
-    /// gated — Yuanbao and Microsoft Teams stay unfiltered to avoid
-    /// changing v0.12 host UX in a v0.13 work-stream (WS-5 plan §Q4).
-    /// If we later decide to gate the v0.12 platforms too, add their
-    /// flags here; the `default: true` arm keeps every other platform
-    /// visible.
-    private var visiblePlatforms: [HermesToolPlatform] {
-        KnownPlatforms.all.filter { p in
-            switch p.name {
-            case "google-chat", "googlechat":
-                return capabilities.hasGoogleChatPlatform
-            default:
-                return true
-            }
-        }
-    }
 
     init(context: ServerContext) {
         _viewModel = State(initialValue: PlatformsViewModel(context: context))
@@ -67,12 +40,12 @@ struct PlatformsView: View {
             List(selection: Binding(
                 get: { viewModel.selected.name },
                 set: { name in
-                    if let p = visiblePlatforms.first(where: { $0.name == name }) {
+                    if let p = viewModel.platforms.first(where: { $0.name == name }) {
                         viewModel.selected = p
                     }
                 }
             )) {
-                ForEach(visiblePlatforms) { platform in
+                ForEach(viewModel.platforms) { platform in
                     HStack(spacing: 8) {
                         Image(systemName: KnownPlatforms.icon(for: platform.name))
                             .frame(width: 20)
@@ -176,7 +149,6 @@ struct PlatformsView: View {
         case "webhook":        WebhookSetupView(context: ctx)
         case "yuanbao":        yuanbaoPanel
         case "microsoft-teams": microsoftTeamsPanel
-        case "google-chat", "googlechat": googleChatPanel
         default:
             SettingsSection(title: LocalizedStringKey(viewModel.selected.displayName), icon: KnownPlatforms.icon(for: viewModel.selected.name)) {
                 ReadOnlyRow(label: "Setup", value: "No setup form for this platform yet.")
@@ -208,27 +180,6 @@ struct PlatformsView: View {
         }
     }
 
-    /// Hermes v0.13 — Google Chat is the 20th gateway platform. Like
-    /// Yuanbao + Microsoft Teams, the auth dance is OAuth-style and
-    /// lives outside Scarf, so the panel surfaces the setup verb rather
-    /// than a per-field form. The `GatewayBehaviorSection` below it picks
-    /// up the v0.13 allowlist + behavior toggles, capability-gated.
-    @ViewBuilder
-    private var googleChatPanel: some View {
-        VStack(alignment: .leading, spacing: ScarfSpace.s3) {
-            SettingsSection(title: "Google Chat", icon: KnownPlatforms.icon(for: "google-chat")) {
-                ReadOnlyRow(label: "Type", value: "Generic env-driven gateway adapter (v0.13+)")
-                ReadOnlyRow(label: "Setup", value: "Run `hermes setup` and select Google Chat to walk the OAuth flow.")
-                ReadOnlyRow(label: "Configured", value: viewModel.hasConfigBlock(for: viewModel.selected) ? "Yes" : "No")
-            }
-            GatewayBehaviorSection(
-                platform: "google-chat",
-                capabilities: capabilities,
-                context: viewModel.context
-            )
-        }
-    }
-
     private var cliPanel: some View {
         SettingsSection(title: "CLI", icon: "terminal") {
             ReadOnlyRow(label: "Scope", value: "Local terminal sessions")

scarf/scarf/Features/Settings/ViewModels/SettingsViewModel.swift

@@ -29,8 +29,31 @@ final class SettingsViewModel {
     // that no-ops on older hosts is low compared to gating overhead.
     var terminalBackends = ["local", "docker", "singularity", "modal", "daytona", "ssh", "vercel"]
     var browserBackends = ["browseruse", "firecrawl", "local"]
-    var ttsProviders = ["edge", "elevenlabs", "openai", "minimax", "mistral", "neutts", "piper"]
+    // v0.13: `xai` joins the TTS provider list. xAI shipped TTS earlier
+    // (v0.12) but the v0.13 add-on is custom voice cloning — see
+    // `HermesCapabilities.hasXAIVoiceCloning` and the badge in VoiceTab.
+    // The provider option itself is ungated so pre-v0.13 hosts with xAI
+    // keys can still pick it.
+    var ttsProviders = ["edge", "elevenlabs", "openai", "minimax", "mistral", "neutts", "piper", "xai"]
     var sttProviders = ["local", "groq", "openai", "mistral"]
+    /// Static-message translation languages honored by Hermes v0.13's
+    /// `display.language` key. The first row's empty value writes no
+    /// key — equivalent to "Hermes default" — while explicit `en` writes
+    /// the code so users who care about determinism can pin it. Keep the
+    /// label list in sync with the Hermes v0.13 release notes; new
+    /// languages should be appended in alphabetical order by display
+    /// label so the picker stays scannable.
+    var displayLanguages: [(code: String, label: String)] = [
+        ("",   "English (default)"),
+        ("en", "English"),
+        ("zh", "中文 (Chinese)"),
+        ("ja", "日本語 (Japanese)"),
+        ("de", "Deutsch (German)"),
+        ("es", "Español (Spanish)"),
+        ("fr", "Français (French)"),
+        ("uk", "Українська (Ukrainian)"),
+        ("tr", "Türkçe (Turkish)"),
+    ]
     var memoryProviders = ["", "honcho", "openviking", "mem0", "hindsight", "holographic", "retaindb", "byterover", "supermemory"]
     var saveMessage: String?
     var isLoading = false
@@ -104,6 +127,10 @@ final class SettingsViewModel {
     func setToolProgressCommand(_ value: Bool) { setSetting("display.tool_progress_command", value: value ? "true" : "false") }
     func setToolPreviewLength(_ value: Int) { setSetting("display.tool_preview_length", value: String(value)) }
     func setBusyInputMode(_ value: String) { setSetting("display.busy_input_mode", value: value) }
+    /// v0.13: `display.language` for static-message translations. Empty
+    /// string writes "" via `hermes config set` which Hermes treats as
+    /// "use default"; explicit codes pin the language.
+    func setDisplayLanguage(_ value: String) { setSetting("display.language", value: value) }
 
     // MARK: - Agent
 
@@ -158,6 +185,10 @@ final class SettingsViewModel {
     func setTTSOpenAIVoice(_ value: String) { setSetting("tts.openai.voice", value: value) }
     func setTTSNeuTTSModel(_ value: String) { setSetting("tts.neutts.model", value: value) }
     func setTTSNeuTTSDevice(_ value: String) { setSetting("tts.neutts.device", value: value) }
+    // v0.13: xAI TTS / Custom Voices. TODO(WS-8-Q2): grep-verify key
+    // names against `~/.hermes/hermes-agent/hermes_cli/voice/tts.py`.
+    func setTTSXAIVoiceID(_ value: String) { setSetting("tts.xai.voice_id", value: value) }
+    func setTTSXAIModel(_ value: String) { setSetting("tts.xai.model", value: value) }
     func setSTTEnabled(_ value: Bool) { setSetting("stt.enabled", value: value ? "true" : "false") }
     func setSTTProvider(_ value: String) { setSetting("stt.provider", value: value) }
     func setSTTLocalModel(_ value: String) { setSetting("stt.local.model", value: value) }

scarf/scarf/Features/Settings/Views/Components/SettingsComponents.swift

@@ -152,8 +152,23 @@ struct PickerRow: View {
     let label: String
     let selection: String
     let options: [String]
+    let optionLabel: ((String) -> String)?
     let onChange: (String) -> Void
 
+    init(
+        label: String,
+        selection: String,
+        options: [String],
+        optionLabel: ((String) -> String)? = nil,
+        onChange: @escaping (String) -> Void
+    ) {
+        self.label = label
+        self.selection = selection
+        self.options = options
+        self.optionLabel = optionLabel
+        self.onChange = onChange
+    }
+
     var body: some View {
         HStack {
             SettingsRowLabel(label: label)
@@ -162,7 +177,7 @@ struct PickerRow: View {
                 set: { onChange($0) }
             )) {
                 ForEach(options, id: \.self) { option in
-                    Text(option.isEmpty ? "(none)" : option).tag(option)
+                    Text(displayLabel(for: option)).tag(option)
                 }
             }
             .frame(maxWidth: 250)
@@ -170,6 +185,13 @@ struct PickerRow: View {
         }
         .settingsRowChrome()
     }
+
+    private func displayLabel(for option: String) -> String {
+        if let mapper = optionLabel {
+            return mapper(option)
+        }
+        return option.isEmpty ? "(none)" : option
+    }
 }
 
 struct ToggleRow: View {

scarf/scarf/Features/Settings/Views/Tabs/AdvancedTab.swift

@@ -131,6 +131,8 @@ struct AdvancedTab: View {
                 isOn: viewModel.config.redactionEnabled
             ) { viewModel.setSetting("redaction.enabled", value: $0 ? "true" : "false") }
 
+            redactionDefaultsHint
+
             ToggleRow(
                 label: "Runtime metadata footer",
                 isOn: viewModel.config.runtimeMetadataFooter
@@ -138,6 +140,30 @@ struct AdvancedTab: View {
         }
     }
 
+    /// Inline hint below the redaction toggle. The server-side default
+    /// flipped from OFF (v0.12) to ON (v0.13), but Scarf's parser still
+    /// reads "absent key" as `false` — meaning a v0.13 host with no
+    /// explicit key in `config.yaml` shows the toggle OFF while the
+    /// agent treats redaction as ON. Hint copy disambiguates so users
+    /// can tell what's actually happening server-side.
+    @ViewBuilder
+    private var redactionDefaultsHint: some View {
+        let isV013 = capabilitiesStore?.capabilities.isV013OrLater ?? false
+        HStack {
+            Text("")
+                .font(.caption)
+                .frame(width: 160, alignment: .trailing)
+            Text(isV013
+                 ? "Recommended: ON. Hermes v0.13+ defaults to redacting secrets unless you opt out."
+                 : "Default OFF in Hermes v0.12. Toggle ON to redact secrets in logs and shares.")
+                .font(.caption)
+                .foregroundStyle(.secondary)
+            Spacer()
+        }
+        .padding(.horizontal, 12)
+        .padding(.vertical, 4)
+    }
+
     private var backupSection: some View {
         SettingsSection(title: "Backup & Restore", icon: "externaldrive") {
             HStack {

scarf/scarf/Features/Settings/Views/Tabs/GeneralTab.swift

@@ -7,6 +7,7 @@ import ScarfCore
 struct GeneralTab: View {
     @Bindable var viewModel: SettingsViewModel
     @Environment(AppCoordinator.self) private var coordinator
+    @Environment(\.hermesCapabilities) private var capabilitiesStore
 
     var body: some View {
         SettingsSection(title: "Model", icon: "cpu") {
@@ -39,6 +40,20 @@ struct GeneralTab: View {
 
         SettingsSection(title: "Locale", icon: "globe.americas") {
             EditableTextField(label: "Timezone (IANA)", value: viewModel.config.timezone) { viewModel.setTimezone($0) }
+            // v0.13: `display.language` picker. Hidden on pre-v0.13 hosts
+            // because writing the key would no-op silently. Two "English"
+            // entries by design — empty string preserves "no key" semantics
+            // (Hermes-default), explicit `en` pins it.
+            if capabilitiesStore?.capabilities.hasDisplayLanguage == true {
+                PickerRow(
+                    label: "Display language",
+                    selection: viewModel.config.display.language,
+                    options: viewModel.displayLanguages.map(\.code),
+                    optionLabel: { code in
+                        viewModel.displayLanguages.first { $0.code == code }?.label ?? code
+                    }
+                ) { viewModel.setDisplayLanguage($0) }
+            }
         }
 
         UpdatesSection()

scarf/scarf/Features/Settings/Views/Tabs/VoiceTab.swift

@@ -1,9 +1,11 @@
 import SwiftUI
 import ScarfCore
+import ScarfDesign
 
 /// Voice tab — push-to-talk + TTS + STT provider settings.
 struct VoiceTab: View {
     @Bindable var viewModel: SettingsViewModel
+    @Environment(\.hermesCapabilities) private var capabilitiesStore
 
     var body: some View {
         SettingsSection(title: "Push-to-Talk", icon: "mic") {
@@ -28,6 +30,16 @@ struct VoiceTab: View {
             case "neutts":
                 EditableTextField(label: "Model", value: viewModel.config.voice.ttsNeuTTSModel) { viewModel.setTTSNeuTTSModel($0) }
                 PickerRow(label: "Device", selection: viewModel.config.voice.ttsNeuTTSDevice, options: ["cpu", "cuda"]) { viewModel.setTTSNeuTTSDevice($0) }
+            case "xai":
+                // v0.13: xAI TTS surface. Voice ID + Model are always
+                // visible (xAI TTS shipped earlier); the cloning-supported
+                // badge is gated on `hasXAIVoiceCloning` so pre-v0.13 hosts
+                // see the input rows but no cloning advertisement.
+                EditableTextField(label: "Voice ID", value: viewModel.config.voice.ttsXAIVoiceID) { viewModel.setTTSXAIVoiceID($0) }
+                EditableTextField(label: "Model", value: viewModel.config.voice.ttsXAIModel) { viewModel.setTTSXAIModel($0) }
+                if capabilitiesStore?.capabilities.hasXAIVoiceCloning == true {
+                    xaiCloningBadge
+                }
             default:
                 EmptyView()
             }
@@ -49,4 +61,24 @@ struct VoiceTab: View {
             }
         }
     }
+
+    /// Inline hint chip+caption shown below xAI's Voice ID + Model fields
+    /// on v0.13+. References `hermes voice` because Scarf doesn't manage
+    /// cloned voices in-app yet — the badge is discovery-only. Out-of-scope
+    /// for v2.8: an in-app cloned-voice manager (would be its own feature).
+    @ViewBuilder
+    private var xaiCloningBadge: some View {
+        HStack(alignment: .center, spacing: 8) {
+            Text("")
+                .font(.caption)
+                .frame(width: 160, alignment: .trailing)
+            ScarfBadge("Cloning supported", kind: .info)
+            Text("Manage cloned voices in your terminal: `hermes voice` (xAI subcommands).")
+                .font(.caption)
+                .foregroundStyle(.secondary)
+            Spacer()
+        }
+        .padding(.horizontal, 12)
+        .padding(.vertical, 4)
+    }
 }

scarf/scarf/Features/Skills/Views/SkillsView.swift

@@ -307,16 +307,6 @@ struct SkillsView: View {
                        case .missing(let hint) = designMdNpxStatus {
                         designMdNpxBanner(hint: hint)
                     }
-                    // v0.13 `[[as_document]]` directive — informational
-                    // only. Rendered when the skill body contains the
-                    // marker AND the host advertises Google Chat support
-                    // (cheap proxy: the directive shipped in v0.13
-                    // alongside Google Chat — see WS-5 plan §Q5/Q6).
-                    if (capabilitiesStore?.capabilities.hasGoogleChatPlatform ?? false),
-                       skillContentMentionsAsDocument {
-                        asDocumentInfoRow
-                    }
-
                     // v2.5 SKILL.md frontmatter chips. Render only the
                     // sections that are populated — old skills without
                     // this metadata show no extra rows.
@@ -412,39 +402,6 @@ struct SkillsView: View {
         }
     }
 
-    /// Returns true when the loaded skill body contains the v0.13
-    /// `[[as_document]]` directive. Substring scan over `skillContent`
-    /// — `[[as_document]]` is a literal token Hermes pattern-matches at
-    /// runtime, not a frontmatter key, so the body is the right place
-    /// to look. // TODO(WS-5-Q6): if Hermes ever moves the directive
-    /// into frontmatter, switch to `SkillFrontmatterParser` instead.
-    private var skillContentMentionsAsDocument: Bool {
-        viewModel.skillContent.contains("[[as_document]]")
-    }
-
-    /// Compact informational row about the `[[as_document]]` directive.
-    /// Does not block any action — it's a label so users understand why
-    /// images in the skill might land as document attachments on certain
-    /// platforms (Google Chat, Microsoft Teams) rather than inline.
-    private var asDocumentInfoRow: some View {
-        HStack(alignment: .top, spacing: 8) {
-            Image(systemName: "doc.badge.gearshape")
-                .foregroundStyle(.blue)
-            VStack(alignment: .leading, spacing: 2) {
-                Text("Document-attachment directive present (v0.13+)")
-                    .font(.caption.bold())
-                Text("Media in this skill marked with `[[as_document]]` is sent as document attachments instead of inline images on platforms that distinguish (Google Chat, Microsoft Teams).")
-                    .font(.caption)
-                    .foregroundStyle(.secondary)
-                    .fixedSize(horizontal: false, vertical: true)
-            }
-        }
-        .padding(10)
-        .frame(maxWidth: .infinity, alignment: .leading)
-        .background(.blue.opacity(0.08))
-        .clipShape(RoundedRectangle(cornerRadius: 8))
-    }
-
     /// Yellow banner surfaced on the design-md skill detail when the
     /// host's `npx` probe came back missing. Reuses the same color
     /// language as the missing-config banner.