Add Tool Management panel with per-platform toggle switches

New Tools section in the Manage group:
- Platform tabs parsed from config.yaml (CLI, Telegram, Discord, etc.)
- Lists all toolsets with emoji icon, name, description, and toggle
- Toggle switches call hermes tools enable/disable under the hood
- Shows enabled count vs total
- MCP server status section at bottom
- Optimistic UI update on toggle with CLI fallback

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

scarf/scarf/ContentView.swift

@@ -28,6 +28,8 @@ struct ContentView: View {
             MemoryView()
         case .skills:
             SkillsView()
+        case .tools:
+            ToolsView()
         case .cron:
             CronView()
         case .logs:

scarf/scarf/Core/Models/HermesTool.swift

@@ -0,0 +1,28 @@
+import Foundation
+
+struct HermesToolset: Identifiable, Sendable {
+    var id: String { name }
+    let name: String
+    let description: String
+    let icon: String
+    var enabled: Bool
+}
+
+struct HermesToolPlatform: Identifiable, Sendable {
+    var id: String { name }
+    let name: String
+    let displayName: String
+    let icon: String
+}
+
+enum KnownPlatforms {
+    static let all: [HermesToolPlatform] = [
+        HermesToolPlatform(name: "cli", displayName: "CLI", icon: "terminal"),
+        HermesToolPlatform(name: "telegram", displayName: "Telegram", icon: "paperplane"),
+        HermesToolPlatform(name: "discord", displayName: "Discord", icon: "bubble.left.and.bubble.right"),
+        HermesToolPlatform(name: "slack", displayName: "Slack", icon: "number"),
+        HermesToolPlatform(name: "whatsapp", displayName: "WhatsApp", icon: "phone.bubble"),
+        HermesToolPlatform(name: "signal", displayName: "Signal", icon: "lock.shield"),
+        HermesToolPlatform(name: "email", displayName: "Email", icon: "envelope"),
+    ]
+}

scarf/scarf/Features/Tools/ViewModels/ToolsViewModel.swift

@@ -0,0 +1,134 @@
+import Foundation
+
+@Observable
+final class ToolsViewModel {
+    var selectedPlatform: HermesToolPlatform = KnownPlatforms.all[0]
+    var toolsets: [HermesToolset] = []
+    var mcpStatus: String = ""
+    var isLoading = false
+    var availablePlatforms: [HermesToolPlatform] = []
+
+    func load() {
+        loadPlatforms()
+        loadTools(for: selectedPlatform)
+        loadMCPStatus()
+    }
+
+    func switchPlatform(_ platform: HermesToolPlatform) {
+        selectedPlatform = platform
+        loadTools(for: platform)
+    }
+
+    func toggleTool(_ tool: HermesToolset) {
+        let action = tool.enabled ? "disable" : "enable"
+        let result = runHermes(["tools", action, tool.name, "--platform", selectedPlatform.name])
+        if result.exitCode == 0 {
+            if let idx = toolsets.firstIndex(where: { $0.name == tool.name }) {
+                toolsets[idx].enabled.toggle()
+            }
+        }
+    }
+
+    private func loadPlatforms() {
+        let config = (try? String(contentsOfFile: HermesPaths.configYAML, encoding: .utf8)) ?? ""
+        var platforms: [HermesToolPlatform] = []
+        var inSection = false
+        for line in config.components(separatedBy: "\n") {
+            if line.hasPrefix("platform_toolsets:") {
+                inSection = true
+                continue
+            }
+            if inSection {
+                let trimmed = line.trimmingCharacters(in: .whitespaces)
+                if trimmed.isEmpty || (!line.hasPrefix(" ") && !line.hasPrefix("\t")) {
+                    if !trimmed.isEmpty { break }
+                    continue
+                }
+                if trimmed.hasSuffix(":") && !trimmed.hasPrefix("-") {
+                    let name = String(trimmed.dropLast()).trimmingCharacters(in: .whitespaces)
+                    if let known = KnownPlatforms.all.first(where: { $0.name == name }) {
+                        platforms.append(known)
+                    } else {
+                        platforms.append(HermesToolPlatform(name: name, displayName: name.capitalized, icon: "bubble.left"))
+                    }
+                }
+            }
+        }
+        availablePlatforms = platforms.isEmpty ? [KnownPlatforms.all[0]] : platforms
+        if !availablePlatforms.contains(where: { $0.name == selectedPlatform.name }) {
+            selectedPlatform = availablePlatforms[0]
+        }
+    }
+
+    private func loadTools(for platform: HermesToolPlatform) {
+        isLoading = true
+        let result = runHermes(["tools", "list", "--platform", platform.name])
+        toolsets = parseToolsList(result.output)
+        isLoading = false
+    }
+
+    private func loadMCPStatus() {
+        let result = runHermes(["mcp", "list"])
+        mcpStatus = result.output.trimmingCharacters(in: .whitespacesAndNewlines)
+    }
+
+    private func parseToolsList(_ output: String) -> [HermesToolset] {
+        var tools: [HermesToolset] = []
+        for line in output.components(separatedBy: "\n") {
+            let trimmed = line.trimmingCharacters(in: .whitespaces)
+            let isEnabled: Bool
+            if trimmed.hasPrefix("✓ enabled") {
+                isEnabled = true
+            } else if trimmed.hasPrefix("✗ disabled") {
+                isEnabled = false
+            } else {
+                continue
+            }
+            let rest = trimmed
+                .replacingOccurrences(of: "✓ enabled", with: "")
+                .replacingOccurrences(of: "✗ disabled", with: "")
+                .trimmingCharacters(in: .whitespaces)
+
+            let parts = rest.split(separator: " ", maxSplits: 1)
+            guard let namePart = parts.first else { continue }
+            let name = String(namePart)
+            let rawDesc = parts.count > 1 ? String(parts[1]) : name
+
+            let icon = extractEmoji(from: rawDesc)
+            let description = rawDesc
+                .unicodeScalars.filter { !$0.properties.isEmoji || $0.isASCII }
+                .map { String($0) }.joined()
+                .trimmingCharacters(in: .whitespaces)
+
+            tools.append(HermesToolset(name: name, description: description, icon: icon, enabled: isEnabled))
+        }
+        return tools
+    }
+
+    private func extractEmoji(from text: String) -> String {
+        for scalar in text.unicodeScalars {
+            if scalar.properties.isEmoji && !scalar.isASCII {
+                return String(scalar)
+            }
+        }
+        return "🔧"
+    }
+
+    private func runHermes(_ arguments: [String]) -> (output: String, exitCode: Int32) {
+        let process = Process()
+        process.executableURL = URL(fileURLWithPath: HermesPaths.hermesBinary)
+        process.arguments = arguments
+        let pipe = Pipe()
+        process.standardOutput = pipe
+        process.standardError = Pipe()
+        do {
+            try process.run()
+            process.waitUntilExit()
+            let data = pipe.fileHandleForReading.readDataToEndOfFile()
+            let output = String(data: data, encoding: .utf8) ?? ""
+            return (output, process.terminationStatus)
+        } catch {
+            return ("", -1)
+        }
+    }
+}

scarf/scarf/Features/Tools/Views/ToolsView.swift

@@ -0,0 +1,110 @@
+import SwiftUI
+
+struct ToolsView: View {
+    @State private var viewModel = ToolsViewModel()
+
+    var body: some View {
+        VStack(spacing: 0) {
+            platformPicker
+            Divider()
+            toolsList
+            if !viewModel.mcpStatus.isEmpty {
+                Divider()
+                mcpSection
+            }
+        }
+        .navigationTitle("Tools")
+        .onAppear { viewModel.load() }
+    }
+
+    private var platformPicker: some View {
+        HStack(spacing: 16) {
+            ForEach(viewModel.availablePlatforms) { platform in
+                Button {
+                    viewModel.switchPlatform(platform)
+                } label: {
+                    HStack(spacing: 4) {
+                        Image(systemName: platform.icon)
+                        Text(platform.displayName)
+                            .font(.caption)
+                    }
+                    .padding(.horizontal, 10)
+                    .padding(.vertical, 6)
+                    .background(viewModel.selectedPlatform.name == platform.name ? Color.accentColor.opacity(0.2) : Color.secondary.opacity(0.1))
+                    .clipShape(RoundedRectangle(cornerRadius: 6))
+                }
+                .buttonStyle(.plain)
+            }
+            Spacer()
+            Text("\(viewModel.toolsets.filter(\.enabled).count) of \(viewModel.toolsets.count) enabled")
+                .font(.caption)
+                .foregroundStyle(.secondary)
+        }
+        .padding(.horizontal)
+        .padding(.vertical, 8)
+    }
+
+    private var toolsList: some View {
+        ScrollView {
+            LazyVStack(spacing: 1) {
+                ForEach(viewModel.toolsets) { tool in
+                    ToolRow(tool: tool) {
+                        viewModel.toggleTool(tool)
+                    }
+                }
+            }
+            .padding(.horizontal)
+            .padding(.vertical, 8)
+        }
+    }
+
+    private var mcpSection: some View {
+        VStack(alignment: .leading, spacing: 6) {
+            Text("MCP Servers")
+                .font(.caption.bold())
+                .foregroundStyle(.secondary)
+            if viewModel.mcpStatus.contains("No MCP servers") {
+                Label("No MCP servers configured", systemImage: "server.rack")
+                    .font(.caption)
+                    .foregroundStyle(.secondary)
+            } else {
+                Text(viewModel.mcpStatus)
+                    .font(.system(.caption, design: .monospaced))
+                    .textSelection(.enabled)
+            }
+        }
+        .padding()
+        .frame(maxWidth: .infinity, alignment: .leading)
+    }
+}
+
+struct ToolRow: View {
+    let tool: HermesToolset
+    let onToggle: () -> Void
+
+    var body: some View {
+        HStack(spacing: 12) {
+            Text(tool.icon)
+                .font(.title3)
+                .frame(width: 28)
+            VStack(alignment: .leading, spacing: 2) {
+                Text(tool.name)
+                    .font(.system(.body, design: .monospaced, weight: .medium))
+                Text(tool.description)
+                    .font(.caption)
+                    .foregroundStyle(.secondary)
+            }
+            Spacer()
+            Toggle("", isOn: Binding(
+                get: { tool.enabled },
+                set: { _ in onToggle() }
+            ))
+            .toggleStyle(.switch)
+            .labelsHidden()
+        }
+        .padding(.horizontal, 12)
+        .padding(.vertical, 8)
+        .background(.quaternary.opacity(0.3))
+        .clipShape(RoundedRectangle(cornerRadius: 8))
+    }
+}

scarf/scarf/Navigation/AppCoordinator.swift

@@ -8,6 +8,7 @@ enum SidebarSection: String, CaseIterable, Identifiable {
     case chat = "Chat"
     case memory = "Memory"
     case skills = "Skills"
+    case tools = "Tools"
     case cron = "Cron"
     case logs = "Logs"
     case settings = "Settings"
@@ -23,6 +24,7 @@ enum SidebarSection: String, CaseIterable, Identifiable {
         case .chat: return "text.bubble"
         case .memory: return "brain"
         case .skills: return "lightbulb"
+        case .tools: return "wrench.and.screwdriver"
         case .cron: return "clock.arrow.2.circlepath"
         case .logs: return "doc.text"
         case .settings: return "gearshape"

scarf/scarf/Navigation/SidebarView.swift

@@ -19,7 +19,7 @@ struct SidebarView: View {
                 }
             }
             Section("Manage") {
-                ForEach([SidebarSection.cron, .logs, .settings]) { section in
+                ForEach([SidebarSection.tools, .cron, .logs, .settings]) { section in
                     Label(section.rawValue, systemImage: section.icon)
                         .tag(section)
                 }