iOS port M6: YAML parser port, Settings view, Cron editing

Ports the Mac app's YAML parser into ScarfCore, unlocking iOS
Settings. Adds Cron editing (add / delete / toggle / edit). Settings
stays read-only this phase (writes need a round-trip-preserving YAML
writer — out of scope). App Store submission deferred to a later
task per the brief.

## ScarfCore — YAML infrastructure

Packages/ScarfCore/Sources/ScarfCore/Parsing/HermesYAML.swift:
  - ParsedYAML struct (values / lists / maps)
  - HermesYAML.parseNestedYAML(_:) — indent-based block parser
  - HermesYAML.stripYAMLQuotes(_:) — single-layer quote stripping

Lifted verbatim from HermesFileService.parseNestedYAML/stripYAMLQuotes
and hoisted into a standalone namespace. Scope unchanged: the subset
Hermes's config.yaml actually uses (block nesting, scalars, bullet
lists, nested maps). NOT full YAML-spec compliance.

Packages/ScarfCore/Sources/ScarfCore/Parsing/HermesConfig+YAML.swift:
  - HermesConfig.init(yaml:) — ports HermesFileService.parseConfig
    one-for-one. Every default, every key, every legacy fallback
    (platforms.slack.* vs slack.*, command_allowlist vs permanent_
    allowlist, etc.) matches the Mac implementation.
  - Forgiving: malformed YAML produces partial state + defaults
    rather than throwing. Callers surface the raw text so users can
    diagnose parse failures on their own.

## ScarfCore — Cron editing (write paths)

Packages/ScarfCore/Sources/ScarfCore/ViewModels/IOSCronViewModel.swift:
  - toggleEnabled(id:)
  - delete(id:)
  - upsert(_:)
All funnel through private saveJobs(_:) which encodes the full
CronJobsFile (.prettyPrinted + .sortedKeys), writes atomically via
transport.writeFile (Data.write-atomic from M5). Creates the cron/
directory on fresh installs.

Models/HermesCronJob.swift — both HermesCronJob and CronJobsFile
gained real public memberwise inits (Swift's synthesis was
suppressed by the hand-written Codable; first draft hacked around
this with JSON round-trips). Also HermesCronJob.withEnabled(_:)
does clean field passthrough instead of encode→mutate→decode.

## ScarfCore — iOS Settings VM

Packages/ScarfCore/Sources/ScarfCore/ViewModels/IOSSettingsViewModel.swift:
  - Reads ~/.hermes/config.yaml via ServerContext.readText
  - Parses with HermesConfig(yaml:)
  - Surfaces both parsed config and rawYAML
  - M6 read-only by design — config.yaml needs round-trip-preserving
    YAML serialization (comments, key order, whitespace) for safe
    edits; option (a) hand-write one, (b) YAML library dep, (c)
    delegate to `hermes config set` via ACP. Defer.

## iOS app

Scarf iOS/Settings/SettingsView.swift:
  - Read-only browser grouped into 10 sections matching the Mac
    app's tabs. DisclosureGroup at the bottom reveals raw YAML
    source for diagnostics.

Scarf iOS/Cron/CronListView.swift rewritten:
  - Toggle-enabled circle (tap to flip, saves atomically)
  - Swipe-to-delete
  - "+" toolbar for new job → editor sheet
  - Row-tap opens editor with existing fields populated

New CronEditorView form:
  - Name, Prompt, Enabled toggle
  - Schedule: kind picker (cron/interval/once), display, expression
    (for cron), run_at (for once)
  - Optional model + comma-separated skills + delivery route
  - Preserves runtime fields (nextRunAt, lastRunAt,
    deliveryFailures, etc.) when editing existing jobs — no reset

Dashboard's Surfaces section gains a 5th row: Settings.

## Test-suite reorganization (real bug caught)

swift-testing's `.serialized` trait serializes WITHIN one @Suite, not
across suites. Shipping M6 revealed a 3-way race on
`ServerContext.sshTransportFactory`:
  - M5's `.serialized` suite sets factory, runs, restores.
  - M6's `.serialized` suite did the same in parallel — clobbered.
  - M0b's non-serialized `serverContextMakeTransportDispatches`
    asserted the DEFAULT factory (nil) returned SSHTransport —
    saw whichever factory was temporarily installed.

Fix: one serialization domain for everything that touches the
factory. Move cron-editing + settings-load M6 tests into M5's
serialized suite. M0b's factory-dependent assertion (SSHTransport
fallback) also moves to the M5 serialized suite with an explicit
`factory = nil` reset for race-freedom. Pure YAML/config/memberwise
tests stay in the new plain (non-serialized) M6ConfigCronTests
suite — they never touch globals.

## Test results: 108 → 134 passing on Linux

19 new in M6ConfigCronTests:
  - YAML parser: scalars, bullets, nested maps, comments, quotes,
    inline {} / []
  - HermesConfig.init(yaml:): empty → defaults, model + agent,
    display, security + blocklist domains, slack legacy fallback,
    auxiliary (3 populated + 2 defaulted), permanent_allowlist vs
    command_allowlist, quoted strings
  - Memberwise inits for HermesCronJob, withEnabled(_:),
    CronJobsFile, CronSchedule

7 new in M5FeatureVMTests (.serialized):
  - defaultFactoryProducesSSHTransportForRemoteContext (moved +
    hardened with explicit factory reset)
  - cronUpsertCreatesFileFromScratch, cronToggleEnabledPersists,
    cronDeleteRemovesJob, cronUpsertReplacesMatchingId,
    cronPreservesRuntimeFieldsAcrossReloads
  - settingsLoadsFromConfigYAML, settingsSurfacesMissingFile

## Manual validation needed on Mac

1. Xcode compile clean.
2. Settings: confirm every section populates from your real
   ~/.hermes/config.yaml. Tap "View source" disclosure, verify raw
   text matches the remote file.
3. Cron: toggle-enabled survives refresh + relaunch. Swipe-delete
   works. "+" creates jobs; round-trip name/prompt/schedule/skills.
   Edit preserves runtime state.
4. Skills: unchanged from M5 (still browse-only, deferred).

Updated scarf/docs/IOS_PORT_PLAN.md with M6's shipped state, the
YAML-parser scope ceiling, the Settings-edit deferral rationale, and
the cross-suite serialization rule for future test authors.

https://claude.ai/code/session_019yMRP6mwZWfzVrPTqevx2y

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

@@ -32,6 +32,49 @@ public struct HermesCronJob: Identifiable, Sendable, Codable {
         case timeoutSeconds = "timeout_seconds"
     }
 
+    /// Memberwise init. Swift doesn't synthesize one for us because
+    /// of the hand-written Codable conformance. The iOS Cron editor
+    /// uses this to rebuild jobs from user-edited fields.
+    public nonisolated init(
+        id: String,
+        name: String,
+        prompt: String,
+        skills: [String]? = nil,
+        model: String? = nil,
+        schedule: CronSchedule,
+        enabled: Bool,
+        state: String,
+        deliver: String? = nil,
+        nextRunAt: String? = nil,
+        lastRunAt: String? = nil,
+        lastError: String? = nil,
+        preRunScript: String? = nil,
+        deliveryFailures: Int? = nil,
+        lastDeliveryError: String? = nil,
+        timeoutType: String? = nil,
+        timeoutSeconds: Int? = nil,
+        silent: Bool? = nil
+    ) {
+        self.id = id
+        self.name = name
+        self.prompt = prompt
+        self.skills = skills
+        self.model = model
+        self.schedule = schedule
+        self.enabled = enabled
+        self.state = state
+        self.deliver = deliver
+        self.nextRunAt = nextRunAt
+        self.lastRunAt = lastRunAt
+        self.lastError = lastError
+        self.preRunScript = preRunScript
+        self.deliveryFailures = deliveryFailures
+        self.lastDeliveryError = lastDeliveryError
+        self.timeoutType = timeoutType
+        self.timeoutSeconds = timeoutSeconds
+        self.silent = silent
+    }
+
     public nonisolated init(from decoder: any Decoder) throws {
         let c = try decoder.container(keyedBy: CodingKeys.self)
         self.id                = try c.decode(String.self, forKey: .id)
@@ -115,6 +158,18 @@ public struct CronSchedule: Sendable, Codable {
         case expression
     }
 
+    public nonisolated init(
+        kind: String,
+        runAt: String? = nil,
+        display: String? = nil,
+        expression: String? = nil
+    ) {
+        self.kind = kind
+        self.runAt = runAt
+        self.display = display
+        self.expression = expression
+    }
+
     public nonisolated init(from decoder: any Decoder) throws {
         let c = try decoder.container(keyedBy: CodingKeys.self)
         self.kind       = try c.decode(String.self, forKey: .kind)
@@ -144,6 +199,11 @@ public struct CronJobsFile: Sendable, Codable {
         case updatedAt = "updated_at"
     }
 
+    public nonisolated init(jobs: [HermesCronJob], updatedAt: String?) {
+        self.jobs = jobs
+        self.updatedAt = updatedAt
+    }
+
     public nonisolated init(from decoder: any Decoder) throws {
         let c = try decoder.container(keyedBy: CodingKeys.self)
         self.jobs      = try c.decode([HermesCronJob].self, forKey: .jobs)

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

@@ -0,0 +1,275 @@
+import Foundation
+
+/// YAML-driven `HermesConfig` constructor. Lifted verbatim (with
+/// trivial adjustments to access the ScarfCore-public types) from
+/// `HermesFileService.parseConfig` so the same key → struct-field
+/// mapping feeds both the Mac app and iOS.
+///
+/// **Behaviour parity.** Every default value, every key, and every
+/// fallback path in this file tracks the Mac implementation
+/// one-for-one. If the Mac parser learns to recognise a new key,
+/// this one should too (and vice versa). The M6 test suite freezes
+/// the defaults + a few recognition paths, so behaviour drift
+/// surfaces on Linux CI without needing Xcode.
+public extension HermesConfig {
+    /// Parse a `config.yaml` string into a fully-populated
+    /// `HermesConfig`. Missing keys fall back to `HermesConfig.empty`-
+    /// compatible defaults. Unknown keys are ignored — Hermes is
+    /// forward-compatible, i.e. a config file with newer keys than
+    /// scarf knows still loads.
+    ///
+    /// The parse is deliberately forgiving: malformed YAML produces
+    /// whatever partial state the parser could recover + defaults
+    /// for everything else, not a throw. The iOS Settings view
+    /// surfaces the raw file on top of this so users can spot a
+    /// broken key even when the struct came back defaulted.
+    init(yaml: String) {
+        let parsed = HermesYAML.parseNestedYAML(yaml)
+        let values = parsed.values
+        let lists = parsed.lists
+        let maps = parsed.maps
+
+        func bool(_ key: String, default def: Bool) -> Bool {
+            guard let v = values[key] else { return def }
+            return v == "true"
+        }
+        func int(_ key: String, default def: Int) -> Int {
+            Int(values[key] ?? "") ?? def
+        }
+        func double(_ key: String, default def: Double) -> Double {
+            Double(values[key] ?? "") ?? def
+        }
+        func str(_ key: String, default def: String = "") -> String {
+            let raw = values[key] ?? def
+            return HermesYAML.stripYAMLQuotes(raw)
+        }
+
+        let dockerEnv = maps["terminal.docker_env"] ?? [:]
+        let commandAllowlist = lists["permanent_allowlist"] ?? lists["command_allowlist"] ?? []
+
+        let display = DisplaySettings(
+            skin: str("display.skin", default: "default"),
+            compact: bool("display.compact", default: false),
+            resumeDisplay: str("display.resume_display", default: "full"),
+            bellOnComplete: bool("display.bell_on_complete", default: false),
+            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")
+        )
+
+        let terminal = TerminalSettings(
+            cwd: str("terminal.cwd", default: "."),
+            timeout: int("terminal.timeout", default: 180),
+            envPassthrough: lists["terminal.env_passthrough"] ?? [],
+            persistentShell: bool("terminal.persistent_shell", default: true),
+            dockerImage: str("terminal.docker_image"),
+            dockerMountCwdToWorkspace: bool("terminal.docker_mount_cwd_to_workspace", default: false),
+            dockerForwardEnv: lists["terminal.docker_forward_env"] ?? [],
+            dockerVolumes: lists["terminal.docker_volumes"] ?? [],
+            containerCPU: int("terminal.container_cpu", default: 0),
+            containerMemory: int("terminal.container_memory", default: 0),
+            containerDisk: int("terminal.container_disk", default: 0),
+            containerPersistent: bool("terminal.container_persistent", default: false),
+            modalImage: str("terminal.modal_image"),
+            modalMode: str("terminal.modal_mode", default: "auto"),
+            daytonaImage: str("terminal.daytona_image"),
+            singularityImage: str("terminal.singularity_image")
+        )
+
+        let browser = BrowserSettings(
+            inactivityTimeout: int("browser.inactivity_timeout", default: 120),
+            commandTimeout: int("browser.command_timeout", default: 30),
+            recordSessions: bool("browser.record_sessions", default: false),
+            allowPrivateURLs: bool("browser.allow_private_urls", default: false),
+            camofoxManagedPersistence: bool("browser.camofox.managed_persistence", default: false)
+        )
+
+        let voice = VoiceSettings(
+            recordKey: str("voice.record_key", default: "ctrl+b"),
+            maxRecordingSeconds: int("voice.max_recording_seconds", default: 120),
+            silenceDuration: double("voice.silence_duration", default: 3.0),
+            ttsProvider: str("tts.provider", default: "edge"),
+            ttsEdgeVoice: str("tts.edge.voice", default: "en-US-AriaNeural"),
+            ttsElevenLabsVoiceID: str("tts.elevenlabs.voice_id"),
+            ttsElevenLabsModelID: str("tts.elevenlabs.model_id", default: "eleven_multilingual_v2"),
+            ttsOpenAIModel: str("tts.openai.model", default: "gpt-4o-mini-tts"),
+            ttsOpenAIVoice: str("tts.openai.voice", default: "alloy"),
+            ttsNeuTTSModel: str("tts.neutts.model"),
+            ttsNeuTTSDevice: str("tts.neutts.device", default: "cpu"),
+            sttEnabled: bool("stt.enabled", default: true),
+            sttProvider: str("stt.provider", default: "local"),
+            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")
+        )
+
+        func aux(_ name: String) -> AuxiliaryModel {
+            AuxiliaryModel(
+                provider: str("auxiliary.\(name).provider", default: "auto"),
+                model: str("auxiliary.\(name).model"),
+                baseURL: str("auxiliary.\(name).base_url"),
+                apiKey: str("auxiliary.\(name).api_key"),
+                timeout: int("auxiliary.\(name).timeout", default: 30)
+            )
+        }
+        let auxiliary = AuxiliarySettings(
+            vision: aux("vision"),
+            webExtract: aux("web_extract"),
+            compression: aux("compression"),
+            sessionSearch: aux("session_search"),
+            skillsHub: aux("skills_hub"),
+            approval: aux("approval"),
+            mcp: aux("mcp"),
+            flushMemories: aux("flush_memories")
+        )
+
+        let security = SecuritySettings(
+            redactSecrets: bool("security.redact_secrets", default: true),
+            redactPII: bool("privacy.redact_pii", default: false),
+            tirithEnabled: bool("security.tirith_enabled", default: true),
+            tirithPath: str("security.tirith_path", default: "tirith"),
+            tirithTimeout: int("security.tirith_timeout", default: 5),
+            tirithFailOpen: bool("security.tirith_fail_open", default: true),
+            blocklistEnabled: bool("security.website_blocklist.enabled", default: false),
+            blocklistDomains: lists["security.website_blocklist.domains"] ?? []
+        )
+
+        let humanDelay = HumanDelaySettings(
+            mode: str("human_delay.mode", default: "off"),
+            minMS: int("human_delay.min_ms", default: 800),
+            maxMS: int("human_delay.max_ms", default: 2500)
+        )
+
+        let compression = CompressionSettings(
+            enabled: bool("compression.enabled", default: true),
+            threshold: double("compression.threshold", default: 0.5),
+            targetRatio: double("compression.target_ratio", default: 0.2),
+            protectLastN: int("compression.protect_last_n", default: 20)
+        )
+
+        let checkpoints = CheckpointSettings(
+            enabled: bool("checkpoints.enabled", default: true),
+            maxSnapshots: int("checkpoints.max_snapshots", default: 50)
+        )
+
+        let logging = LoggingSettings(
+            level: str("logging.level", default: "INFO"),
+            maxSizeMB: int("logging.max_size_mb", default: 5),
+            backupCount: int("logging.backup_count", default: 3)
+        )
+
+        let delegation = DelegationSettings(
+            model: str("delegation.model"),
+            provider: str("delegation.provider"),
+            baseURL: str("delegation.base_url"),
+            apiKey: str("delegation.api_key"),
+            maxIterations: int("delegation.max_iterations", default: 50)
+        )
+
+        let discord = DiscordSettings(
+            requireMention: bool("discord.require_mention", default: true),
+            freeResponseChannels: str("discord.free_response_channels"),
+            autoThread: bool("discord.auto_thread", default: true),
+            reactions: bool("discord.reactions", default: true)
+        )
+
+        let telegram = TelegramSettings(
+            requireMention: bool("telegram.require_mention", default: true),
+            reactions: bool("telegram.reactions", default: false)
+        )
+
+        // Slack fields live under both `platforms.slack.*` (newer) and `slack.*`
+        // (legacy). Prefer the newer path but fall back.
+        let slack = SlackSettings(
+            replyToMode: values["platforms.slack.reply_to_mode"] ?? values["slack.reply_to_mode"] ?? "first",
+            requireMention: (values["platforms.slack.require_mention"] ?? values["slack.require_mention"]) != "false",
+            replyInThread: (values["platforms.slack.extra.reply_in_thread"] ?? "true") != "false",
+            replyBroadcast: (values["platforms.slack.extra.reply_broadcast"] ?? "false") == "true"
+        )
+
+        let matrix = MatrixSettings(
+            requireMention: bool("matrix.require_mention", default: true),
+            autoThread: bool("matrix.auto_thread", default: true),
+            dmMentionThreads: bool("matrix.dm_mention_threads", default: false)
+        )
+
+        let mattermost = MattermostSettings(
+            requireMention: bool("mattermost.require_mention", default: true),
+            replyMode: str("mattermost.reply_mode", default: "off")
+        )
+
+        let whatsapp = WhatsAppSettings(
+            unauthorizedDMBehavior: str("whatsapp.unauthorized_dm_behavior", default: "pair"),
+            replyPrefix: str("whatsapp.reply_prefix")
+        )
+
+        // Home Assistant lives under `platforms.homeassistant.extra.*`.
+        let homeAssistant = HomeAssistantSettings(
+            watchDomains: lists["platforms.homeassistant.extra.watch_domains"] ?? [],
+            watchEntities: lists["platforms.homeassistant.extra.watch_entities"] ?? [],
+            watchAll: bool("platforms.homeassistant.extra.watch_all", default: false),
+            ignoreEntities: lists["platforms.homeassistant.extra.ignore_entities"] ?? [],
+            cooldownSeconds: int("platforms.homeassistant.extra.cooldown_seconds", default: 30)
+        )
+
+        self.init(
+            model: str("model.default", default: "unknown"),
+            provider: str("model.provider", default: "unknown"),
+            maxTurns: int("agent.max_turns", default: 0),
+            personality: str("display.personality", default: "default"),
+            terminalBackend: str("terminal.backend", default: "local"),
+            memoryEnabled: bool("memory.memory_enabled", default: false),
+            memoryCharLimit: int("memory.memory_char_limit", default: 0),
+            userCharLimit: int("memory.user_char_limit", default: 0),
+            nudgeInterval: int("memory.nudge_interval", default: 0),
+            streaming: values["display.streaming"] != "false",
+            showReasoning: bool("display.show_reasoning", default: false),
+            verbose: bool("agent.verbose", default: false),
+            autoTTS: values["voice.auto_tts"] != "false",
+            silenceThreshold: int("voice.silence_threshold", default: QueryDefaults.defaultSilenceThreshold),
+            reasoningEffort: str("agent.reasoning_effort", default: "medium"),
+            showCost: bool("display.show_cost", default: false),
+            approvalMode: str("approvals.mode", default: "manual"),
+            browserBackend: str("browser.backend"),
+            memoryProvider: str("memory.provider"),
+            dockerEnv: dockerEnv,
+            commandAllowlist: commandAllowlist,
+            memoryProfile: str("memory.profile"),
+            serviceTier: str("agent.service_tier", default: "normal"),
+            gatewayNotifyInterval: int("agent.gateway_notify_interval", default: 600),
+            forceIPv4: bool("network.force_ipv4", default: false),
+            contextEngine: str("context.engine", default: "compressor"),
+            interimAssistantMessages: values["display.interim_assistant_messages"] != "false",
+            honchoInitOnSessionStart: bool("honcho.initOnSessionStart", default: false),
+            timezone: str("timezone"),
+            userProfileEnabled: bool("memory.user_profile_enabled", default: true),
+            toolUseEnforcement: str("agent.tool_use_enforcement", default: "auto"),
+            gatewayTimeout: int("agent.gateway_timeout", default: 1800),
+            approvalTimeout: int("approvals.timeout", default: 60),
+            fileReadMaxChars: int("file_read_max_chars", default: 100_000),
+            cronWrapResponse: bool("cron.wrap_response", default: true),
+            prefillMessagesFile: str("prefill_messages_file"),
+            skillsExternalDirs: lists["skills.external_dirs"] ?? [],
+            display: display,
+            terminal: terminal,
+            browser: browser,
+            voice: voice,
+            auxiliary: auxiliary,
+            security: security,
+            humanDelay: humanDelay,
+            compression: compression,
+            checkpoints: checkpoints,
+            logging: logging,
+            delegation: delegation,
+            discord: discord,
+            telegram: telegram,
+            slack: slack,
+            matrix: matrix,
+            mattermost: mattermost,
+            whatsapp: whatsapp,
+            homeAssistant: homeAssistant
+        )
+    }
+}

scarf/Packages/ScarfCore/Sources/ScarfCore/Parsing/HermesYAML.swift

@@ -0,0 +1,137 @@
+import Foundation
+
+/// Parsed YAML result bundle. Flat dotted-path keys point at the
+/// three value shapes we care about (scalars, bullet lists, maps).
+///
+/// **Scope note.** This is NOT a full YAML-spec parser. It handles
+/// the subset used by Hermes's `config.yaml`: indent-based block
+/// nesting, string/int/bool/float scalars, `- item` bullet lists,
+/// and one level of nested `key: value` maps. Anchors, aliases,
+/// multi-line scalars (`|` / `>` block scalars), flow-style `[ ]` /
+/// `{ }` literals, tags — none of those are supported. That covers
+/// 100% of what the current Hermes config actually uses.
+///
+/// The original implementation lived in the Mac app's
+/// `HermesFileService`. Ported into ScarfCore in M6 so iOS can read
+/// `config.yaml` through the same parser without having to pull in a
+/// third-party YAML dependency.
+public struct ParsedYAML: Sendable {
+    /// Scalar key-value pairs at any indent level →
+    /// `values["section.key"] = "..."`.
+    public var values: [String: String]
+    /// Bullet-list items attached to a parent key →
+    /// `lists["section.key"] = [...]`.
+    public var lists: [String: [String]]
+    /// Nested `key: value` maps captured under a section header →
+    /// `maps["section"] = [key: value, ...]`.
+    public var maps: [String: [String: String]]
+
+    public init(
+        values: [String: String] = [:],
+        lists: [String: [String]] = [:],
+        maps: [String: [String: String]] = [:]
+    ) {
+        self.values = values
+        self.lists = lists
+        self.maps = maps
+    }
+}
+
+/// Entry points for Hermes-flavored YAML parsing. Stateless, pure
+/// functions — no Foundation types that differ cross-platform.
+public enum HermesYAML {
+    /// Parse a YAML string into a `ParsedYAML` bundle.
+    public static func parseNestedYAML(_ yaml: String) -> ParsedYAML {
+        var values: [String: String] = [:]
+        var lists: [String: [String]] = [:]
+        var maps: [String: [String: String]] = [:]
+        // Path stack: each entry is (indent, name). Pop when indent shrinks.
+        var stack: [(indent: Int, name: String)] = []
+
+        func currentPath(joinedWith child: String? = nil) -> String {
+            var parts = stack.map(\.name)
+            if let child { parts.append(child) }
+            return parts.joined(separator: ".")
+        }
+
+        let rawLines = yaml.components(separatedBy: "\n")
+        for line in rawLines {
+            // Skip comment-only and blank lines but preserve indent semantics.
+            let trimmed = line.trimmingCharacters(in: .whitespaces)
+            if trimmed.isEmpty || trimmed.hasPrefix("#") { continue }
+
+            let indent = line.prefix(while: { $0 == " " }).count
+            let isListItem = trimmed.hasPrefix("- ")
+
+            // Pop stack entries with indent >= current indent.
+            // Exception: a list item at the same indent as its parent key is
+            // valid block-style YAML ("toolsets:\n- hermes-cli") — keep the
+            // parent so the item is attributed to it.
+            while let top = stack.last {
+                let shouldPop: Bool
+                if isListItem && top.indent == indent {
+                    shouldPop = false
+                } else {
+                    shouldPop = top.indent >= indent
+                }
+                if shouldPop { stack.removeLast() } else { break }
+            }
+
+            if isListItem {
+                let item = String(trimmed.dropFirst(2)).trimmingCharacters(in: .whitespaces)
+                let stripped = stripYAMLQuotes(item)
+                let path = currentPath()
+                guard !path.isEmpty else { continue }
+                lists[path, default: []].append(stripped)
+                continue
+            }
+
+            // Key-value or section line.
+            guard let colonIdx = trimmed.firstIndex(of: ":") else { continue }
+            let key = String(trimmed[trimmed.startIndex..<colonIdx]).trimmingCharacters(in: .whitespaces)
+            let afterColon = String(trimmed[trimmed.index(after: colonIdx)...]).trimmingCharacters(in: .whitespaces)
+
+            let path = currentPath(joinedWith: key)
+
+            if afterColon.isEmpty || afterColon == "|" || afterColon == ">" {
+                // Section header or empty-valued key — push onto stack so children nest.
+                stack.append((indent: indent, name: key))
+                continue
+            }
+
+            // Inline `{}` / `[]` literals → treat as empty.
+            if afterColon == "{}" {
+                values[path] = ""
+                maps[path] = [:]
+                continue
+            }
+            if afterColon == "[]" {
+                values[path] = ""
+                lists[path] = []
+                continue
+            }
+
+            values[path] = afterColon
+
+            // Also record as a map entry under the parent so blocks like
+            // `terminal.docker_env` are accessible as `[String: String]`
+            // without a separate scan.
+            if !stack.isEmpty {
+                let parentPath = currentPath()
+                maps[parentPath, default: [:]][key] = stripYAMLQuotes(afterColon)
+            }
+        }
+        return ParsedYAML(values: values, lists: lists, maps: maps)
+    }
+
+    /// Strip a single layer of surrounding single or double quotes from a YAML scalar.
+    public static func stripYAMLQuotes(_ s: String) -> String {
+        guard s.count >= 2 else { return s }
+        let first = s.first!
+        let last = s.last!
+        if (first == "'" && last == "'") || (first == "\"" && last == "\"") {
+            return String(s.dropFirst().dropLast())
+        }
+        return s
+    }
+}

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

@@ -1,15 +1,14 @@
 import Foundation
 import Observation
 
-/// iOS read-only Cron view-state. Loads `~/.hermes/cron/jobs.json`
-/// via the transport, decodes into `CronJobsFile` (already Codable
-/// in ScarfCore), exposes the list for SwiftUI.
+/// iOS Cron view-state. Loads `~/.hermes/cron/jobs.json` via the
+/// transport, decodes into `CronJobsFile` (Codable, from M0a),
+/// exposes the sorted list for SwiftUI.
 ///
-/// M5 is read-only by design — editing cron jobs (add / delete /
-/// toggle enabled) is deferred until we have a clearer iOS story for
-/// rewriting `jobs.json` atomically across the SSH SFTP path. The
-/// Mac app's `CronViewModel` does this through `HermesFileService`;
-/// porting that is out of scope for M5.
+/// M6 adds write paths: toggle enabled, delete, and upsert (add or
+/// replace a job by id). All writes re-encode the full file with a
+/// fresh `updatedAt` and call `transport.writeFile` — which on iOS
+/// dispatches to Citadel SFTP with atomic rename semantics.
 @Observable
 @MainActor
 public final class IOSCronViewModel {
@@ -17,6 +16,7 @@ public final class IOSCronViewModel {
 
     public private(set) var jobs: [HermesCronJob] = []
     public private(set) var isLoading: Bool = true
+    public private(set) var isSaving: Bool = false
     public private(set) var lastError: String?
 
     public init(context: ServerContext) {
@@ -43,17 +43,7 @@ public final class IOSCronViewModel {
 
         switch result {
         case .success(let file):
-            // Sort: enabled first, then by nextRunAt ascending (nil
-            // last). Matches what the Mac app does for list rendering.
-            jobs = file.jobs.sorted { lhs, rhs in
-                if lhs.enabled != rhs.enabled { return lhs.enabled }
-                switch (lhs.nextRunAt, rhs.nextRunAt) {
-                case (let l?, let r?): return l < r
-                case (_?, nil):        return true
-                case (nil, _?):        return false
-                case (nil, nil):       return lhs.name < rhs.name
-                }
-            }
+            jobs = Self.sorted(file.jobs)
             isLoading = false
 
         case .failure(let err as LoadError):
@@ -73,6 +63,97 @@ public final class IOSCronViewModel {
         }
     }
 
+    /// Toggle `enabled` on the job with the given id, re-encode, and
+    /// write back. On failure, leaves the in-memory state unchanged
+    /// and sets `lastError`.
+    @discardableResult
+    public func toggleEnabled(id: String) async -> Bool {
+        guard let idx = jobs.firstIndex(where: { $0.id == id }) else { return false }
+        var updated = jobs
+        let prev = updated[idx]
+        updated[idx] = prev.withEnabled(!prev.enabled)
+        return await saveJobs(updated)
+    }
+
+    /// Remove the job with `id` and save.
+    @discardableResult
+    public func delete(id: String) async -> Bool {
+        let updated = jobs.filter { $0.id != id }
+        guard updated.count != jobs.count else { return false }
+        return await saveJobs(updated)
+    }
+
+    /// Add a new job or replace an existing one with matching id.
+    @discardableResult
+    public func upsert(_ job: HermesCronJob) async -> Bool {
+        var updated = jobs
+        if let idx = updated.firstIndex(where: { $0.id == job.id }) {
+            updated[idx] = job
+        } else {
+            updated.append(job)
+        }
+        return await saveJobs(updated)
+    }
+
+    // MARK: - Internal
+
+    /// Shared persistence path: serialize `CronJobsFile` as pretty
+    /// JSON, write it atomically through the transport, and update
+    /// the in-memory list on success.
+    private func saveJobs(_ newJobs: [HermesCronJob]) async -> Bool {
+        guard !isSaving else { return false }
+        isSaving = true
+        lastError = nil
+        let ctx = context
+        let path = ctx.paths.cronJobsJSON
+
+        let iso = ISO8601DateFormatter()
+        iso.formatOptions = [.withInternetDateTime]
+        let file = CronJobsFile(jobs: newJobs, updatedAt: iso.string(from: Date()))
+
+        let ok: Bool = await Task.detached {
+            do {
+                let encoder = JSONEncoder()
+                encoder.outputFormatting = [.prettyPrinted, .sortedKeys]
+                let data = try encoder.encode(file)
+                let transport = ctx.makeTransport()
+                // Ensure the cron/ directory exists — on a fresh
+                // Hermes install this file won't be present.
+                let parent = (path as NSString).deletingLastPathComponent
+                if !transport.fileExists(parent) {
+                    try? transport.createDirectory(parent)
+                }
+                try transport.writeFile(path, data: data)
+                return true
+            } catch {
+                return false
+            }
+        }.value
+
+        isSaving = false
+        if ok {
+            jobs = Self.sorted(newJobs)
+            return true
+        } else {
+            lastError = "Couldn't save jobs.json — check the connection and try again."
+            return false
+        }
+    }
+
+    /// Sort: enabled first, then by `nextRunAt` ascending (nil last,
+    /// then by name). Matches the Mac app's list rendering.
+    private static func sorted(_ jobs: [HermesCronJob]) -> [HermesCronJob] {
+        jobs.sorted { lhs, rhs in
+            if lhs.enabled != rhs.enabled { return lhs.enabled }
+            switch (lhs.nextRunAt, rhs.nextRunAt) {
+            case (let l?, let r?): return l < r
+            case (_?, nil):        return true
+            case (nil, _?):        return false
+            case (nil, nil):       return lhs.name < rhs.name
+            }
+        }
+    }
+
     public enum LoadError: Error, LocalizedError {
         case missingFile(path: String)
 
@@ -83,3 +164,32 @@ public final class IOSCronViewModel {
         }
     }
 }
+
+// MARK: - HermesCronJob helpers
+
+public extension HermesCronJob {
+    /// Return a copy with a different `enabled` flag. Used by the iOS
+    /// Cron list's toggle. All other fields pass through unchanged.
+    func withEnabled(_ newEnabled: Bool) -> HermesCronJob {
+        HermesCronJob(
+            id: id,
+            name: name,
+            prompt: prompt,
+            skills: skills,
+            model: model,
+            schedule: schedule,
+            enabled: newEnabled,
+            state: state,
+            deliver: deliver,
+            nextRunAt: nextRunAt,
+            lastRunAt: lastRunAt,
+            lastError: lastError,
+            preRunScript: preRunScript,
+            deliveryFailures: deliveryFailures,
+            lastDeliveryError: lastDeliveryError,
+            timeoutType: timeoutType,
+            timeoutSeconds: timeoutSeconds,
+            silent: silent
+        )
+    }
+}

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

@@ -0,0 +1,58 @@
+import Foundation
+import Observation
+
+/// iOS Settings view-state. Loads `~/.hermes/config.yaml` via the
+/// transport, parses it into a `HermesConfig` with the ScarfCore
+/// YAML port, and exposes the parsed struct plus a copy of the raw
+/// text for users who want to see the source.
+///
+/// **M6 is read-only by design.** Editing config.yaml safely requires
+/// either (a) a round-trip preserving YAML parser (comments, key
+/// order, whitespace) or (b) delegating to `hermes config set` via
+/// ACP. Either is more work than fits in M6; the Mac app's Settings
+/// uses (a) via HermesFileService's manipulators. A later phase can
+/// port the write side.
+@Observable
+@MainActor
+public final class IOSSettingsViewModel {
+    public let context: ServerContext
+
+    /// Parsed config. Falls back to `.empty` when the file is missing
+    /// or malformed; `lastError` carries the reason so the UI can
+    /// surface it.
+    public private(set) var config: HermesConfig = .empty
+    /// Raw YAML text. Useful for the "View source" disclosure, and
+    /// for diagnosing parse failures (our parser is forgiving but
+    /// lossy on malformed input).
+    public private(set) var rawYAML: String = ""
+
+    public private(set) var isLoading: Bool = true
+    public private(set) var lastError: String?
+
+    public init(context: ServerContext) {
+        self.context = context
+    }
+
+    public func load() async {
+        isLoading = true
+        lastError = nil
+        let ctx = context
+        let path = ctx.paths.configYAML
+
+        let text: String? = await Task.detached {
+            ctx.readText(path)
+        }.value
+
+        guard let text else {
+            config = .empty
+            rawYAML = ""
+            lastError = "`\(path)` not found on \(ctx.displayName). Once Hermes is configured on this host, Settings will light up."
+            isLoading = false
+            return
+        }
+
+        rawYAML = text
+        config = HermesConfig(yaml: text)
+        isLoading = false
+    }
+}

scarf/Packages/ScarfCore/Tests/ScarfCoreTests/M0bTransportTests.swift

@@ -76,21 +76,16 @@ import Foundation
         #expect(remoteDefault.paths.home == "~/.hermes")
     }
 
-    @Test func serverContextMakeTransportDispatches() {
+    @Test func serverContextMakeTransportDispatchesLocal() {
+        // Only assert the .local path here. The .ssh → SSHTransport
+        // default-factory assertion lives in the serialized
+        // M5FeatureVMTests suite because it depends on
+        // `ServerContext.sshTransportFactory` being nil, which races
+        // with any other parallel test installing a custom factory.
         let local = ServerContext.local.makeTransport()
         #expect(local is LocalTransport)
         #expect(local.isRemote == false)
         #expect(local.contextID == ServerContext.local.id)
-
-        let remoteCtx = ServerContext(
-            id: UUID(),
-            displayName: "r",
-            kind: .ssh(SSHConfig(host: "h"))
-        )
-        let remote = remoteCtx.makeTransport()
-        #expect(remote is SSHTransport)
-        #expect(remote.isRemote == true)
-        #expect(remote.contextID == remoteCtx.id)
     }
 
     @Test func fileStatMemberwise() {

scarf/Packages/ScarfCore/Tests/ScarfCoreTests/M5FeatureVMTests.swift

@@ -326,4 +326,201 @@ import Foundation
         #expect(p.options[0].optionId == "allow")
     }
     #endif
+
+    // MARK: - M0b default SSH transport factory path
+    //
+    // Moved here from M0bTransportTests because it asserts the
+    // default-factory (nil) behavior — which any other test in a
+    // parallel suite installing a custom factory would clobber.
+    // Living in a .serialized suite + explicitly resetting the
+    // factory makes the assertion race-free.
+
+    @Test @MainActor func defaultFactoryProducesSSHTransportForRemoteContext() {
+        let previous = ServerContext.sshTransportFactory
+        defer { ServerContext.sshTransportFactory = previous }
+        ServerContext.sshTransportFactory = nil
+
+        let remoteCtx = ServerContext(
+            id: UUID(),
+            displayName: "r",
+            kind: .ssh(SSHConfig(host: "h"))
+        )
+        let remote = remoteCtx.makeTransport()
+        #expect(remote is SSHTransport)
+        #expect(remote.isRemote == true)
+        #expect(remote.contextID == remoteCtx.id)
+    }
+
+    // MARK: - M6 Cron editing (write paths)
+    //
+    // Live in this suite (rather than M6ConfigCronTests) because they
+    // install the `ServerContext.sshTransportFactory` static — same
+    // pattern as the Memory/Cron/Skills read-path tests above. Mixing
+    // factory-users across multiple `.serialized` suites races on
+    // the static, so M6's factory-touching tests merge here.
+
+    @Test @MainActor func cronUpsertCreatesFileFromScratch() async throws {
+        try await withLocalTransportFactory { [self] in
+            let (ctx, _) = try makeFakeHermes()
+            let vm = IOSCronViewModel(context: ctx)
+            await vm.load()
+            #expect(vm.jobs.isEmpty)
+
+            let job = HermesCronJob(
+                id: "job_abc",
+                name: "Morning brief",
+                prompt: "summarize my calendar",
+                skills: ["calendar"],
+                model: nil,
+                schedule: CronSchedule(kind: "cron", display: "9am", expression: "0 9 * * *"),
+                enabled: true,
+                state: "scheduled"
+            )
+            let ok = await vm.upsert(job)
+            #expect(ok)
+            #expect(vm.jobs.count == 1)
+            #expect(vm.jobs[0].name == "Morning brief")
+
+            let vm2 = IOSCronViewModel(context: ctx)
+            await vm2.load()
+            #expect(vm2.jobs.count == 1)
+            #expect(vm2.jobs[0].id == "job_abc")
+            #expect(vm2.jobs[0].prompt == "summarize my calendar")
+            #expect(vm2.jobs[0].skills == ["calendar"])
+        }
+    }
+
+    @Test @MainActor func cronToggleEnabledPersists() async throws {
+        try await withLocalTransportFactory { [self] in
+            let (ctx, _) = try makeFakeHermes()
+            let vm = IOSCronViewModel(context: ctx)
+            await vm.upsert(HermesCronJob(
+                id: "j1", name: "A", prompt: "p",
+                schedule: CronSchedule(kind: "cron"),
+                enabled: true, state: "scheduled"
+            ))
+            #expect(vm.jobs[0].enabled)
+            let ok = await vm.toggleEnabled(id: "j1")
+            #expect(ok)
+            #expect(vm.jobs[0].enabled == false)
+
+            let vm2 = IOSCronViewModel(context: ctx)
+            await vm2.load()
+            #expect(vm2.jobs[0].enabled == false)
+        }
+    }
+
+    @Test @MainActor func cronDeleteRemovesJob() async throws {
+        try await withLocalTransportFactory { [self] in
+            let (ctx, _) = try makeFakeHermes()
+            let vm = IOSCronViewModel(context: ctx)
+            await vm.upsert(HermesCronJob(id: "a", name: "A", prompt: "p", schedule: CronSchedule(kind: "cron"), enabled: true, state: "scheduled"))
+            await vm.upsert(HermesCronJob(id: "b", name: "B", prompt: "q", schedule: CronSchedule(kind: "cron"), enabled: true, state: "scheduled"))
+            #expect(vm.jobs.count == 2)
+
+            let ok = await vm.delete(id: "a")
+            #expect(ok)
+            #expect(vm.jobs.count == 1)
+            #expect(vm.jobs[0].id == "b")
+
+            let vm2 = IOSCronViewModel(context: ctx)
+            await vm2.load()
+            #expect(vm2.jobs.count == 1)
+            #expect(vm2.jobs[0].id == "b")
+        }
+    }
+
+    @Test @MainActor func cronUpsertReplacesMatchingId() async throws {
+        try await withLocalTransportFactory { [self] in
+            let (ctx, _) = try makeFakeHermes()
+            let vm = IOSCronViewModel(context: ctx)
+            await vm.upsert(HermesCronJob(
+                id: "j1", name: "Original", prompt: "p1",
+                schedule: CronSchedule(kind: "cron"),
+                enabled: true, state: "scheduled"
+            ))
+            await vm.upsert(HermesCronJob(
+                id: "j1", name: "Renamed", prompt: "p2",
+                schedule: CronSchedule(kind: "interval"),
+                enabled: false, state: "scheduled"
+            ))
+            #expect(vm.jobs.count == 1)
+            #expect(vm.jobs[0].name == "Renamed")
+            #expect(vm.jobs[0].prompt == "p2")
+            #expect(vm.jobs[0].enabled == false)
+        }
+    }
+
+    @Test @MainActor func cronPreservesRuntimeFieldsAcrossReloads() async throws {
+        try await withLocalTransportFactory { [self] in
+            let (ctx, _) = try makeFakeHermes()
+            let vm = IOSCronViewModel(context: ctx)
+            await vm.upsert(HermesCronJob(
+                id: "j1", name: "Kept", prompt: "p",
+                skills: nil, model: "gpt-4",
+                schedule: CronSchedule(kind: "cron", display: "midnight"),
+                enabled: true,
+                state: "completed",
+                deliver: "discord:general",
+                nextRunAt: "2026-04-25T00:00:00Z",
+                lastRunAt: "2026-04-24T00:00:00Z",
+                deliveryFailures: 3,
+                lastDeliveryError: "rate limited",
+                timeoutType: "soft",
+                timeoutSeconds: 600,
+                silent: false
+            ))
+
+            let vm2 = IOSCronViewModel(context: ctx)
+            await vm2.load()
+            let j = vm2.jobs[0]
+            #expect(j.nextRunAt == "2026-04-25T00:00:00Z")
+            #expect(j.lastRunAt == "2026-04-24T00:00:00Z")
+            #expect(j.deliveryFailures == 3)
+            #expect(j.lastDeliveryError == "rate limited")
+            #expect(j.timeoutSeconds == 600)
+            #expect(j.state == "completed")
+        }
+    }
+
+    // MARK: - M6 Settings
+
+    @Test @MainActor func settingsLoadsFromConfigYAML() async throws {
+        try await withLocalTransportFactory { [self] in
+            let (ctx, home) = try makeFakeHermes()
+            let yaml = """
+            model:
+              default: gpt-4o
+              provider: openai
+            display:
+              skin: solarized
+              compact: true
+            """
+            try yaml.write(
+                to: home.appendingPathComponent("config.yaml"),
+                atomically: true,
+                encoding: .utf8
+            )
+            let vm = IOSSettingsViewModel(context: ctx)
+            await vm.load()
+            #expect(vm.isLoading == false)
+            #expect(vm.config.model == "gpt-4o")
+            #expect(vm.config.provider == "openai")
+            #expect(vm.config.display.skin == "solarized")
+            #expect(vm.config.display.compact == true)
+            #expect(vm.rawYAML.contains("gpt-4o"))
+            #expect(vm.lastError == nil)
+        }
+    }
+
+    @Test @MainActor func settingsSurfacesMissingFile() async throws {
+        try await withLocalTransportFactory { [self] in
+            let (ctx, _) = try makeFakeHermes()
+            let vm = IOSSettingsViewModel(context: ctx)
+            await vm.load()
+            #expect(vm.isLoading == false)
+            #expect(vm.lastError != nil)
+            #expect(vm.config.model == "unknown")
+        }
+    }
 }

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

@@ -0,0 +1,282 @@
+import Testing
+import Foundation
+@testable import ScarfCore
+
+/// M6: YAML parser port + HermesConfig loader. Pure functions — no
+/// `ServerContext.sshTransportFactory` races, so this suite can run
+/// in parallel with everything else.
+///
+/// The write-path tests for Cron editing + Settings-from-yaml live
+/// in `M5FeatureVMTests` (the serialized suite that already owns
+/// the factory-install pattern) to avoid cross-suite parallel
+/// collisions on the shared factory static.
+@Suite struct M6ConfigCronTests {
+
+    // MARK: - YAML parser
+
+    @Test func parsesScalarKeyValues() {
+        let yaml = """
+        model:
+          default: gpt-4o
+          provider: openai
+        """
+        let p = HermesYAML.parseNestedYAML(yaml)
+        #expect(p.values["model.default"] == "gpt-4o")
+        #expect(p.values["model.provider"] == "openai")
+    }
+
+    @Test func parsesBulletLists() {
+        let yaml = """
+        permanent_allowlist:
+          - ls
+          - pwd
+          - 'cat /etc/hostname'
+        """
+        let p = HermesYAML.parseNestedYAML(yaml)
+        #expect(p.lists["permanent_allowlist"] == ["ls", "pwd", "cat /etc/hostname"])
+    }
+
+    @Test func parsesNestedMaps() {
+        let yaml = """
+        terminal:
+          docker_env:
+            PATH: /usr/local/bin
+            HOME: /home/hermes
+        """
+        let p = HermesYAML.parseNestedYAML(yaml)
+        #expect(p.maps["terminal.docker_env"]?["PATH"] == "/usr/local/bin")
+        #expect(p.maps["terminal.docker_env"]?["HOME"] == "/home/hermes")
+        #expect(p.values["terminal.docker_env.PATH"] == "/usr/local/bin")
+    }
+
+    @Test func ignoresCommentsAndBlankLines() {
+        let yaml = """
+        # Top-level comment
+        model:
+          # inline comment
+          default: gpt-4o
+
+          provider: openai
+        """
+        let p = HermesYAML.parseNestedYAML(yaml)
+        #expect(p.values["model.default"] == "gpt-4o")
+        #expect(p.values["model.provider"] == "openai")
+    }
+
+    @Test func stripsQuotes() {
+        #expect(HermesYAML.stripYAMLQuotes("'quoted'") == "quoted")
+        #expect(HermesYAML.stripYAMLQuotes("\"quoted\"") == "quoted")
+        #expect(HermesYAML.stripYAMLQuotes("plain") == "plain")
+        #expect(HermesYAML.stripYAMLQuotes("'unbalanced") == "'unbalanced")
+        #expect(HermesYAML.stripYAMLQuotes("") == "")
+    }
+
+    @Test func handlesInlineLiterals() {
+        let yaml = """
+        empty_map: {}
+        empty_list: []
+        """
+        let p = HermesYAML.parseNestedYAML(yaml)
+        #expect(p.maps["empty_map"] != nil)
+        #expect(p.lists["empty_list"] != nil)
+    }
+
+    // MARK: - HermesConfig from YAML
+
+    @Test func emptyYAMLProducesDefaults() {
+        let c = HermesConfig(yaml: "")
+        #expect(c.model == "unknown")
+        #expect(c.provider == "unknown")
+        #expect(c.display.skin == "default")
+        #expect(c.streaming == true)
+        #expect(c.security.redactSecrets == true)
+        #expect(c.compression.enabled == true)
+        #expect(c.voice.ttsProvider == "edge")
+    }
+
+    @Test func parsesTopLevelModel() {
+        let yaml = """
+        model:
+          default: claude-4-opus
+          provider: anthropic
+        agent:
+          reasoning_effort: high
+          service_tier: pro
+          max_turns: 50
+        """
+        let c = HermesConfig(yaml: yaml)
+        #expect(c.model == "claude-4-opus")
+        #expect(c.provider == "anthropic")
+        #expect(c.reasoningEffort == "high")
+        #expect(c.serviceTier == "pro")
+        #expect(c.maxTurns == 50)
+    }
+
+    @Test func parsesDisplaySection() {
+        let yaml = """
+        display:
+          skin: dark
+          compact: true
+          streaming: false
+          show_reasoning: true
+          show_cost: true
+          personality: professional
+        """
+        let c = HermesConfig(yaml: yaml)
+        #expect(c.display.skin == "dark")
+        #expect(c.display.compact == true)
+        #expect(c.streaming == false)
+        #expect(c.showReasoning == true)
+        #expect(c.showCost == true)
+        #expect(c.personality == "professional")
+    }
+
+    @Test func parsesSecuritySection() {
+        let yaml = """
+        security:
+          redact_secrets: false
+          tirith_enabled: false
+          tirith_timeout: 15
+          website_blocklist:
+            enabled: true
+            domains:
+              - example.com
+              - evil.org
+        """
+        let c = HermesConfig(yaml: yaml)
+        #expect(c.security.redactSecrets == false)
+        #expect(c.security.tirithEnabled == false)
+        #expect(c.security.tirithTimeout == 15)
+        #expect(c.security.blocklistEnabled == true)
+        #expect(c.security.blocklistDomains == ["example.com", "evil.org"])
+    }
+
+    @Test func parsesSlackWithLegacyAndNewerPaths() {
+        // Newer path wins when both present.
+        let newerWins = HermesConfig(yaml: """
+        platforms:
+          slack:
+            reply_to_mode: all
+        slack:
+          reply_to_mode: first
+        """)
+        #expect(newerWins.slack.replyToMode == "all")
+
+        // Legacy-only path used when newer is absent.
+        let legacyFallback = HermesConfig(yaml: """
+        slack:
+          reply_to_mode: first
+        """)
+        #expect(legacyFallback.slack.replyToMode == "first")
+
+        // Default when neither present.
+        let defaulted = HermesConfig(yaml: "")
+        #expect(defaulted.slack.replyToMode == "first")
+    }
+
+    @Test func parsesAuxiliarySection() {
+        let yaml = """
+        auxiliary:
+          vision:
+            provider: openai
+            model: gpt-4-vision
+            timeout: 60
+          compression:
+            provider: anthropic
+            model: claude-3-haiku
+        """
+        let c = HermesConfig(yaml: yaml)
+        #expect(c.auxiliary.vision.provider == "openai")
+        #expect(c.auxiliary.vision.model == "gpt-4-vision")
+        #expect(c.auxiliary.vision.timeout == 60)
+        #expect(c.auxiliary.compression.provider == "anthropic")
+        // Not-configured aux blocks default to "auto" / empty.
+        #expect(c.auxiliary.sessionSearch.provider == "auto")
+        #expect(c.auxiliary.mcp.provider == "auto")
+    }
+
+    @Test func parsesPermanentAllowlist() {
+        let yaml = """
+        permanent_allowlist:
+          - ls
+          - pwd
+          - stat
+        """
+        let c = HermesConfig(yaml: yaml)
+        #expect(c.commandAllowlist == ["ls", "pwd", "stat"])
+    }
+
+    @Test func parsesCommandAllowlistLegacyName() {
+        // Fall back to `command_allowlist` when `permanent_allowlist` absent.
+        let yaml = """
+        command_allowlist:
+          - whoami
+          - id
+        """
+        let c = HermesConfig(yaml: yaml)
+        #expect(c.commandAllowlist == ["whoami", "id"])
+    }
+
+    @Test func preservesQuotedStrings() {
+        let yaml = """
+        model:
+          default: "gpt-4o with spaces"
+        timezone: 'America/New_York'
+        """
+        let c = HermesConfig(yaml: yaml)
+        #expect(c.model == "gpt-4o with spaces")
+        #expect(c.timezone == "America/New_York")
+    }
+
+    @Test func cronScheduleMemberwise() {
+        let s = CronSchedule(
+            kind: "cron",
+            runAt: nil,
+            display: "9am weekdays",
+            expression: "0 9 * * 1-5"
+        )
+        #expect(s.kind == "cron")
+        #expect(s.display == "9am weekdays")
+    }
+
+    @Test func hermesCronJobMemberwiseAndWithEnabled() {
+        let job = HermesCronJob(
+            id: "j1",
+            name: "Brief",
+            prompt: "summarize",
+            skills: ["cal"],
+            schedule: CronSchedule(kind: "cron"),
+            enabled: true,
+            state: "scheduled",
+            deliver: "discord:general"
+        )
+        #expect(job.enabled)
+        let toggled = job.withEnabled(false)
+        #expect(toggled.enabled == false)
+        // Every other field round-trips.
+        #expect(toggled.id == job.id)
+        #expect(toggled.name == job.name)
+        #expect(toggled.prompt == job.prompt)
+        #expect(toggled.skills == job.skills)
+        #expect(toggled.deliver == job.deliver)
+    }
+
+    @Test func cronJobsFileMemberwise() {
+        let jobs = [
+            HermesCronJob(
+                id: "a", name: "A", prompt: "p",
+                schedule: CronSchedule(kind: "cron"),
+                enabled: true, state: "scheduled"
+            )
+        ]
+        let file = CronJobsFile(jobs: jobs, updatedAt: "2026-04-23T00:00:00Z")
+        #expect(file.jobs.count == 1)
+        #expect(file.updatedAt == "2026-04-23T00:00:00Z")
+        // Codable round-trip should survive.
+        let data = try! JSONEncoder().encode(file)
+        let decoded = try! JSONDecoder().decode(CronJobsFile.self, from: data)
+        #expect(decoded.jobs.count == 1)
+        #expect(decoded.jobs[0].name == "A")
+        #expect(decoded.updatedAt == file.updatedAt)
+    }
+}

scarf/Scarf iOS/Cron/CronListView.swift

@@ -1,13 +1,14 @@
 import SwiftUI
 import ScarfCore
 
-/// iOS Cron screen. Read-only list of scheduled jobs pulled from
-/// `~/.hermes/cron/jobs.json`. Editing is deferred to a later phase —
-/// see `IOSCronViewModel`'s header for the scope rationale.
+/// iOS Cron screen. M6 gained: toggle-enabled, swipe-to-delete,
+/// "+" toolbar → editor sheet, and row-tap → edit existing job.
 struct CronListView: View {
     let config: IOSServerConfig
 
     @State private var vm: IOSCronViewModel
+    @State private var editingJob: HermesCronJob?
+    @State private var showingNewJob = false
 
     private static let sharedContextID: ServerID = ServerID(
         uuidString: "00000000-0000-0000-0000-0000000000A1"
@@ -33,7 +34,7 @@ struct CronListView: View {
                     VStack(alignment: .leading, spacing: 6) {
                         Text("No cron jobs yet.")
                             .font(.headline)
-                        Text("Create cron jobs from the Mac app or by editing `~/.hermes/cron/jobs.json` directly. iOS will display them here.")
+                        Text("Tap \(Image(systemName: "plus.circle.fill")) to create one, or manage them from the Mac app.")
                             .font(.caption)
                             .foregroundStyle(.secondary)
                     }
@@ -42,13 +43,34 @@ struct CronListView: View {
             } else {
                 Section {
                     ForEach(vm.jobs) { job in
-                        CronRow(job: job)
+                        CronRow(job: job) {
+                            Task { await vm.toggleEnabled(id: job.id) }
+                        } onTap: {
+                            editingJob = job
+                        }
+                        .swipeActions(edge: .trailing, allowsFullSwipe: false) {
+                            Button(role: .destructive) {
+                                Task { await vm.delete(id: job.id) }
+                            } label: {
+                                Label("Delete", systemImage: "trash")
+                            }
+                        }
                     }
                 }
             }
         }
         .navigationTitle("Cron jobs")
         .navigationBarTitleDisplayMode(.inline)
+        .toolbar {
+            ToolbarItem(placement: .topBarTrailing) {
+                Button {
+                    showingNewJob = true
+                } label: {
+                    Image(systemName: "plus.circle.fill")
+                }
+                .disabled(vm.isSaving)
+            }
+        }
         .overlay {
             if vm.isLoading && vm.jobs.isEmpty {
                 ProgressView("Loading jobs…")
@@ -59,29 +81,42 @@ struct CronListView: View {
         }
         .refreshable { await vm.load() }
         .task { await vm.load() }
+        .sheet(item: $editingJob) { job in
+            CronEditorView(initial: job, title: "Edit cron job") { edited in
+                Task { await vm.upsert(edited) }
+            }
+        }
+        .sheet(isPresented: $showingNewJob) {
+            CronEditorView(initial: nil, title: "New cron job") { created in
+                Task { await vm.upsert(created) }
+            }
+        }
     }
 }
 
 private struct CronRow: View {
     let job: HermesCronJob
+    let onToggle: () -> Void
+    let onTap: () -> Void
 
     var body: some View {
-        NavigationLink {
-            CronDetailView(job: job)
-        } label: {
         HStack(alignment: .top, spacing: 12) {
-                VStack {
-                    Image(systemName: job.stateIcon)
-                        .foregroundStyle(stateColor)
-                        .font(.body)
+            Button(action: onToggle) {
+                Image(systemName: job.enabled
+                    ? "checkmark.circle.fill"
+                    : "circle")
+                    .font(.title3)
+                    .foregroundStyle(job.enabled ? Color.accentColor : Color.secondary)
             }
-                .frame(width: 22)
+            .buttonStyle(.plain)
 
+            Button(action: onTap) {
                 VStack(alignment: .leading, spacing: 3) {
                     HStack {
                         Text(job.name)
                             .font(.body)
                             .fontWeight(.medium)
+                            .foregroundStyle(.primary)
                         if !job.enabled {
                             Text("DISABLED")
                                 .font(.caption2)
@@ -108,86 +143,171 @@ private struct CronRow: View {
                             .foregroundStyle(.tertiary)
                     }
                 }
+                .frame(maxWidth: .infinity, alignment: .leading)
+            }
+            .buttonStyle(.plain)
         }
         .padding(.vertical, 2)
     }
-    }
-
-    private var stateColor: Color {
-        switch job.state {
-        case "running":   return .blue
-        case "completed": return .green
-        case "failed":    return .red
-        default:          return .secondary
-        }
-    }
 }
 
-private struct CronDetailView: View {
-    let job: HermesCronJob
+// MARK: - Editor
+
+/// Sheet for creating or editing a single `HermesCronJob`. Scoped
+/// to the fields a user typically sets; runtime state fields
+/// (delivery_failures, last_run_at, etc.) pass through untouched
+/// when editing an existing job.
+struct CronEditorView: View {
+    let title: String
+    let onSave: (HermesCronJob) -> Void
+    @Environment(\.dismiss) private var dismiss
+
+    // Form-backing state.
+    @State private var id: String
+    @State private var name: String
+    @State private var prompt: String
+    @State private var model: String
+    @State private var skills: String  // comma-separated
+    @State private var deliver: String
+    @State private var enabled: Bool
+
+    @State private var scheduleKind: String
+    @State private var scheduleDisplay: String
+    @State private var scheduleRunAt: String
+    @State private var scheduleExpression: String
+
+    private let existing: HermesCronJob?
+
+    init(
+        initial: HermesCronJob?,
+        title: String,
+        onSave: @escaping (HermesCronJob) -> Void
+    ) {
+        self.title = title
+        self.onSave = onSave
+        self.existing = initial
+        _id = State(initialValue: initial?.id ?? "job_\(UUID().uuidString.prefix(8))")
+        _name = State(initialValue: initial?.name ?? "")
+        _prompt = State(initialValue: initial?.prompt ?? "")
+        _model = State(initialValue: initial?.model ?? "")
+        _skills = State(initialValue: (initial?.skills ?? []).joined(separator: ", "))
+        _deliver = State(initialValue: initial?.deliver ?? "")
+        _enabled = State(initialValue: initial?.enabled ?? true)
+        _scheduleKind = State(initialValue: initial?.schedule.kind ?? "cron")
+        _scheduleDisplay = State(initialValue: initial?.schedule.display ?? "")
+        _scheduleRunAt = State(initialValue: initial?.schedule.runAt ?? "")
+        _scheduleExpression = State(initialValue: initial?.schedule.expression ?? "")
+    }
 
     var body: some View {
+        NavigationStack {
             Form {
+                Section("Job") {
+                    TextField("Name", text: $name)
+                        .autocorrectionDisabled()
+                    Toggle("Enabled", isOn: $enabled)
+                }
+
                 Section("Prompt") {
-                Text(job.prompt)
+                    TextEditor(text: $prompt)
+                        .frame(minHeight: 120)
                         .font(.body)
-                    .textSelection(.enabled)
+                        .autocorrectionDisabled()
+                        .textInputAutocapitalization(.never)
                 }
 
                 Section("Schedule") {
-                LabeledContent("Kind", value: job.schedule.kind)
-                if let display = job.schedule.display {
-                    LabeledContent("When", value: display)
+                    Picker("Kind", selection: $scheduleKind) {
+                        Text("cron").tag("cron")
+                        Text("interval").tag("interval")
+                        Text("once").tag("once")
                     }
-                if let expr = job.schedule.expression {
-                    LabeledContent("Expression", value: expr)
+                    TextField("Display (e.g. \"9am weekdays\")", text: $scheduleDisplay)
+                        .autocorrectionDisabled()
+                    if scheduleKind == "cron" {
+                        TextField("Expression (e.g. \"0 9 * * 1-5\")", text: $scheduleExpression)
+                            .autocorrectionDisabled()
+                            .textInputAutocapitalization(.never)
+                    }
+                    if scheduleKind == "once" {
+                        TextField("Run at (ISO8601)", text: $scheduleRunAt)
+                            .autocorrectionDisabled()
+                            .textInputAutocapitalization(.never)
                     }
                 }
 
-            Section("State") {
-                LabeledContent("Enabled", value: job.enabled ? "yes" : "no")
-                LabeledContent("State", value: job.state)
-                if let last = job.lastRunAt {
-                    LabeledContent("Last run", value: last)
-                }
-                if let next = job.nextRunAt {
-                    LabeledContent("Next run", value: next)
-                }
-                if let err = job.lastError {
-                    VStack(alignment: .leading, spacing: 4) {
-                        Text("Last error")
-                            .font(.caption)
-                            .foregroundStyle(.secondary)
-                        Text(err)
-                            .font(.caption.monospaced())
-                            .foregroundStyle(.red)
-                            .textSelection(.enabled)
+                Section("Optional") {
+                    TextField("Model (leave blank to use default)", text: $model)
+                        .autocorrectionDisabled()
+                        .textInputAutocapitalization(.never)
+                    TextField("Skills (comma-separated)", text: $skills)
+                        .autocorrectionDisabled()
+                        .textInputAutocapitalization(.never)
+                    TextField("Deliver (e.g. discord:channel)", text: $deliver)
+                        .autocorrectionDisabled()
+                        .textInputAutocapitalization(.never)
                 }
             }
-            }
-
-            if let delivery = job.deliveryDisplay {
-                Section("Delivery") {
-                    LabeledContent("Route", value: delivery)
-                }
-            }
-
-            if let skills = job.skills, !skills.isEmpty {
-                Section("Skills") {
-                    ForEach(skills, id: \.self) { s in
-                        Text(s)
-                            .font(.caption.monospaced())
-                    }
-                }
-            }
-
-            if let model = job.model {
-                Section("Model") {
-                    Text(model).font(.caption.monospaced())
-                }
-            }
-        }
-        .navigationTitle(job.name)
+            .navigationTitle(title)
             .navigationBarTitleDisplayMode(.inline)
+            .toolbar {
+                ToolbarItem(placement: .topBarLeading) {
+                    Button("Cancel") { dismiss() }
+                }
+                ToolbarItem(placement: .topBarTrailing) {
+                    Button("Save") {
+                        onSave(buildJob())
+                        dismiss()
+                    }
+                    .disabled(!isValid)
+                    .bold()
+                }
+            }
+        }
+    }
+
+    private var isValid: Bool {
+        let n = name.trimmingCharacters(in: .whitespacesAndNewlines)
+        let p = prompt.trimmingCharacters(in: .whitespacesAndNewlines)
+        return !n.isEmpty && !p.isEmpty
+    }
+
+    private func buildJob() -> HermesCronJob {
+        let skillList = skills
+            .split(separator: ",")
+            .map { $0.trimmingCharacters(in: .whitespacesAndNewlines) }
+            .filter { !$0.isEmpty }
+        let emptyToNil: (String) -> String? = { s in
+            let t = s.trimmingCharacters(in: .whitespacesAndNewlines)
+            return t.isEmpty ? nil : t
+        }
+        let schedule = CronSchedule(
+            kind: scheduleKind,
+            runAt: emptyToNil(scheduleRunAt),
+            display: emptyToNil(scheduleDisplay),
+            expression: emptyToNil(scheduleExpression)
+        )
+        return HermesCronJob(
+            id: id,
+            name: name.trimmingCharacters(in: .whitespacesAndNewlines),
+            prompt: prompt.trimmingCharacters(in: .whitespacesAndNewlines),
+            skills: skillList.isEmpty ? nil : skillList,
+            model: emptyToNil(model),
+            schedule: schedule,
+            enabled: enabled,
+            state: existing?.state ?? "scheduled",
+            deliver: emptyToNil(deliver),
+            // Preserve runtime state fields from the existing job so
+            // an edit doesn't reset last_run_at, failure counts, etc.
+            nextRunAt: existing?.nextRunAt,
+            lastRunAt: existing?.lastRunAt,
+            lastError: existing?.lastError,
+            preRunScript: existing?.preRunScript,
+            deliveryFailures: existing?.deliveryFailures,
+            lastDeliveryError: existing?.lastDeliveryError,
+            timeoutType: existing?.timeoutType,
+            timeoutSeconds: existing?.timeoutSeconds,
+            silent: existing?.silent
+        )
     }
 }

scarf/Scarf iOS/Dashboard/DashboardView.swift

@@ -110,6 +110,11 @@ struct DashboardView: View {
                     } label: {
                         Label("Skills", systemImage: "sparkles")
                     }
+                    NavigationLink {
+                        SettingsView(config: config)
+                    } label: {
+                        Label("Settings", systemImage: "gearshape.fill")
+                    }
                 }
 
                 Section("Connected to") {

scarf/Scarf iOS/Settings/SettingsView.swift

@@ -0,0 +1,225 @@
+import SwiftUI
+import ScarfCore
+
+/// iOS Settings screen. Read-only browser of `~/.hermes/config.yaml`
+/// as it currently stands on the remote, grouped into sections that
+/// mirror the Mac app's tabs. Source-of-truth toggle at the bottom
+/// reveals the raw YAML for users who want to see what the parser
+/// consumed.
+struct SettingsView: View {
+    let config: IOSServerConfig
+
+    @State private var vm: IOSSettingsViewModel
+    @State private var showRawYAML = false
+
+    private static let sharedContextID: ServerID = ServerID(
+        uuidString: "00000000-0000-0000-0000-0000000000A1"
+    )!
+
+    init(config: IOSServerConfig) {
+        self.config = config
+        let ctx = config.toServerContext(id: Self.sharedContextID)
+        _vm = State(initialValue: IOSSettingsViewModel(context: ctx))
+    }
+
+    var body: some View {
+        List {
+            if let err = vm.lastError {
+                Section {
+                    Label(err, systemImage: "exclamationmark.triangle.fill")
+                        .foregroundStyle(.orange)
+                }
+            }
+
+            if !vm.isLoading || vm.config.model != "unknown" {
+                modelSection
+                agentSection
+                displaySection
+                terminalSection
+                memorySection
+                voiceSection
+                securitySection
+                compressionSection
+                loggingSection
+                platformsSection
+                rawYAMLToggleSection
+            }
+        }
+        .navigationTitle("Settings")
+        .navigationBarTitleDisplayMode(.inline)
+        .refreshable { await vm.load() }
+        .task { await vm.load() }
+        .overlay {
+            if vm.isLoading && vm.config.model == "unknown" {
+                ProgressView("Loading config.yaml…")
+                    .padding()
+                    .background(.regularMaterial)
+                    .clipShape(RoundedRectangle(cornerRadius: 10))
+            }
+        }
+    }
+
+    // MARK: - Sections
+
+    @ViewBuilder
+    private var modelSection: some View {
+        Section("Model") {
+            LabeledContent("Default", value: vm.config.model)
+            if !vm.config.provider.isEmpty, vm.config.provider != "unknown" {
+                LabeledContent("Provider", value: vm.config.provider)
+            }
+            LabeledContent("Reasoning effort", value: vm.config.reasoningEffort)
+            if !vm.config.timezone.isEmpty {
+                LabeledContent("Timezone", value: vm.config.timezone)
+            }
+        }
+    }
+
+    @ViewBuilder
+    private var agentSection: some View {
+        Section("Agent") {
+            LabeledContent("Approval mode", value: vm.config.approvalMode)
+            LabeledContent("Max turns", value: "\(vm.config.maxTurns)")
+            LabeledContent("Service tier", value: vm.config.serviceTier)
+            yesNoRow("Verbose logging", vm.config.verbose)
+            LabeledContent("Tool use enforcement", value: vm.config.toolUseEnforcement)
+        }
+    }
+
+    @ViewBuilder
+    private var displaySection: some View {
+        Section("Display") {
+            yesNoRow("Streaming", vm.config.streaming)
+            yesNoRow("Show reasoning", vm.config.showReasoning)
+            yesNoRow("Show cost", vm.config.showCost)
+            LabeledContent("Skin", value: vm.config.display.skin)
+            yesNoRow("Compact", vm.config.display.compact)
+            yesNoRow("Inline diffs", vm.config.display.inlineDiffs)
+            LabeledContent("Personality", value: vm.config.personality)
+        }
+    }
+
+    @ViewBuilder
+    private var terminalSection: some View {
+        Section("Terminal") {
+            LabeledContent("Backend", value: vm.config.terminalBackend)
+            LabeledContent("Cwd", value: vm.config.terminal.cwd)
+            LabeledContent("Timeout", value: "\(vm.config.terminal.timeout)s")
+            yesNoRow("Persistent shell", vm.config.terminal.persistentShell)
+            if !vm.config.terminal.dockerImage.isEmpty {
+                LabeledContent("Docker image", value: vm.config.terminal.dockerImage)
+            }
+        }
+    }
+
+    @ViewBuilder
+    private var memorySection: some View {
+        Section("Memory") {
+            yesNoRow("Memory enabled", vm.config.memoryEnabled)
+            yesNoRow("User profile enabled", vm.config.userProfileEnabled)
+            if vm.config.memoryCharLimit > 0 {
+                LabeledContent("Char limit", value: "\(vm.config.memoryCharLimit)")
+            }
+            if !vm.config.memoryProfile.isEmpty {
+                LabeledContent("Profile", value: vm.config.memoryProfile)
+            }
+            if !vm.config.memoryProvider.isEmpty {
+                LabeledContent("Provider", value: vm.config.memoryProvider)
+            }
+        }
+    }
+
+    @ViewBuilder
+    private var voiceSection: some View {
+        Section("Voice") {
+            yesNoRow("Auto TTS", vm.config.autoTTS)
+            LabeledContent("TTS provider", value: vm.config.voice.ttsProvider)
+            yesNoRow("STT enabled", vm.config.voice.sttEnabled)
+            LabeledContent("STT provider", value: vm.config.voice.sttProvider)
+        }
+    }
+
+    @ViewBuilder
+    private var securitySection: some View {
+        Section("Security") {
+            yesNoRow("Redact secrets", vm.config.security.redactSecrets)
+            yesNoRow("Redact PII", vm.config.security.redactPII)
+            yesNoRow("Tirith enabled", vm.config.security.tirithEnabled)
+            yesNoRow("Website blocklist", vm.config.security.blocklistEnabled)
+            if !vm.config.security.blocklistDomains.isEmpty {
+                ForEach(vm.config.security.blocklistDomains.prefix(5), id: \.self) { domain in
+                    Text(domain)
+                        .font(.caption.monospaced())
+                        .foregroundStyle(.secondary)
+                }
+                if vm.config.security.blocklistDomains.count > 5 {
+                    Text("+ \(vm.config.security.blocklistDomains.count - 5) more")
+                        .font(.caption)
+                        .foregroundStyle(.tertiary)
+                }
+            }
+        }
+    }
+
+    @ViewBuilder
+    private var compressionSection: some View {
+        Section("Compression") {
+            yesNoRow("Enabled", vm.config.compression.enabled)
+            LabeledContent("Threshold", value: String(format: "%.2f", vm.config.compression.threshold))
+            LabeledContent("Target ratio", value: String(format: "%.2f", vm.config.compression.targetRatio))
+            LabeledContent("Protect last N", value: "\(vm.config.compression.protectLastN)")
+        }
+    }
+
+    @ViewBuilder
+    private var loggingSection: some View {
+        Section("Logging") {
+            LabeledContent("Level", value: vm.config.logging.level)
+            LabeledContent("Max size", value: "\(vm.config.logging.maxSizeMB) MB")
+            LabeledContent("Backup count", value: "\(vm.config.logging.backupCount)")
+        }
+    }
+
+    @ViewBuilder
+    private var platformsSection: some View {
+        Section("Platforms") {
+            yesNoRow("Discord: require mention", vm.config.discord.requireMention)
+            yesNoRow("Discord: auto-thread", vm.config.discord.autoThread)
+            yesNoRow("Telegram: require mention", vm.config.telegram.requireMention)
+            LabeledContent("Slack: reply mode", value: vm.config.slack.replyToMode)
+            yesNoRow("Matrix: require mention", vm.config.matrix.requireMention)
+        }
+    }
+
+    @ViewBuilder
+    private var rawYAMLToggleSection: some View {
+        Section {
+            DisclosureGroup("View source (config.yaml)", isExpanded: $showRawYAML) {
+                if vm.rawYAML.isEmpty {
+                    Text("(empty)")
+                        .font(.caption)
+                        .foregroundStyle(.tertiary)
+                } else {
+                    Text(vm.rawYAML)
+                        .font(.caption2.monospaced())
+                        .foregroundStyle(.secondary)
+                        .textSelection(.enabled)
+                        .frame(maxWidth: .infinity, alignment: .leading)
+                }
+            }
+        } footer: {
+            Text("M6 is read-only. Edit config.yaml on the Mac app or via a shell; iOS reflects the current remote state.")
+                .font(.caption)
+        }
+    }
+
+    // MARK: - Helpers
+
+    @ViewBuilder
+    private func yesNoRow(_ label: String, _ value: Bool) -> some View {
+        LabeledContent(label) {
+            Text(value ? "yes" : "no")
+                .foregroundStyle(value ? .primary : .secondary)
+        }
+    }
+}

scarf/docs/IOS_PORT_PLAN.md

@@ -696,4 +696,57 @@ Total **98 → 108 tests passing on Linux** via `docker run --rm -v $PWD/Package
 - **Editing Cron, adding Skills** — both are deferred. Cron editing needs atomic JSON rewrites (doable). Skills install needs git-clone + schema validation (larger).
 - **Settings tab on iOS is still missing** — requires a YAML parser in ScarfCore or porting `HermesFileService.loadConfig`. Next phase's job.
 
-### M6 — pending
+### M6 — shipped (on `claude/ios-m6-settings-polish` branch, separate PR, stacked on M5)
+
+Ports the Mac app's YAML parser into ScarfCore (unblocking iOS Settings), adds Settings browsing + Cron editing, consolidates the test-serialization story. App Store submission is deferred to a later task after real-device testing.
+
+**Shipped — ScarfCore:**
+
+- `Parsing/HermesYAML.swift` — `HermesYAML.parseNestedYAML(_:)` + `stripYAMLQuotes(_:)`. Lifted verbatim from `HermesFileService.parseNestedYAML` / `stripYAMLQuotes` but hoisted into a standalone enum for reuse. Scope unchanged: indent-based block nesting, scalar values, bullet lists, nested maps. Not full YAML-spec compliance; matches exactly what Hermes's `config.yaml` actually uses.
+- `Parsing/HermesConfig+YAML.swift` — `HermesConfig.init(yaml:)`. Lifted from `HermesFileService.parseConfig` one-for-one. Every default, every key, every legacy fallback (e.g., `platforms.slack.*` vs `slack.*`) tracked to the Mac implementation. Forgiving: malformed YAML produces a partial-state `HermesConfig` rather than throwing.
+- `ViewModels/IOSSettingsViewModel.swift` — `@Observable @MainActor` VM. Reads `~/.hermes/config.yaml` via transport, parses with the new loader, surfaces both the parsed `HermesConfig` and the raw text (so Settings view can offer a "View source" disclosure). M6 Settings is READ-ONLY — edit-path deferred until a round-trip-preserving YAML writer lands (commits, key order, whitespace would need preservation for a clean edit UX).
+- `ViewModels/IOSCronViewModel.swift` — added write paths: `toggleEnabled(id:)`, `delete(id:)`, `upsert(_:)`. All funnel through `saveJobs(_:)` which re-encodes the full `CronJobsFile` (`.prettyPrinted + .sortedKeys`) and writes atomically via the transport (Data.write-atomic semantics from M5). Creates the `cron/` directory on fresh installs.
+- Both `HermesCronJob` and `CronJobsFile` gained real memberwise inits (previously only hand-written `init(from:)` — Swift's synthesis was suppressed). Also `HermesCronJob.withEnabled(_:)` — clean field-passthrough instead of the JSON-roundtrip hack my first draft used.
+
+**Shipped — iOS app:**
+
+- `Scarf iOS/Settings/SettingsView.swift` — read-only browser grouped into sections that mirror the Mac app's tabs: Model, Agent, Display, Terminal, Memory, Voice, Security, Compression, Logging, Platforms. `DisclosureGroup` at the bottom reveals the raw YAML source for diagnostics.
+- `Scarf iOS/Cron/CronListView.swift` rewritten: toggle-enabled circle (tap to flip), swipe-to-delete, "+" toolbar for new-job, row-tap opens the editor sheet. New `CronEditorView` form handles name / prompt / enabled / schedule (kind + display + expression + run_at) / optional model / comma-separated skills / delivery route. Preserves runtime state fields (nextRunAt, lastRunAt, deliveryFailures, etc.) when editing — no resetting the cron's observed history on a field edit.
+- Dashboard's Surfaces section gets a 5th row: Settings.
+
+**Test-suite reorganization:**
+
+Discovered (and fixed) a cross-suite race: swift-testing's `.serialized` trait scopes to one @Suite, not globally. M5's serialized suite installed `ServerContext.sshTransportFactory`, M6's serialized suite did the same, and the M0b non-serialized `serverContextMakeTransportDispatches` test asserted the DEFAULT factory (nil) returned `SSHTransport` — all three raced on the shared static.
+
+Fix: keep the YAML-parse + memberwise tests in a plain (non-serialized) `M6ConfigCronTests` suite since they're pure. **Move every factory-touching test into the single `.serialized` `M5FeatureVMTests`** — including M6's Cron write-path tests, Settings-load tests, AND the M0b default-factory test (with explicit `factory = nil` reset for race-freedom). Single serialization domain eliminates the race.
+
+**Test counts:** 108 → **134 passing on Linux**.
+
+| Suite | New in M6 | Total |
+|---|--:|--:|
+| `ScarfCoreSmokeTests` | 0 | 1 |
+| `M0aPublicInitTests` | 0 | 15 |
+| `M0bTransportTests` | 0 (1 split out + moved) | 18 |
+| `M0cServicesTests` | 0 | 8 |
+| `M0dViewModelsTests` | 0 | 9 |
+| `M1ACPTests` | 0 | 10 |
+| `M2OnboardingTests` | 0 | 26 |
+| `M3TransportTests` | 0 | 5 |
+| `M4ACPIOSTests` | 0 | 2 |
+| `M5FeatureVMTests` | **+7** (cron write paths + settings load + default-factory guard) | 21 |
+| `M6ConfigCronTests` | **+19** (YAML parsing + HermesConfig decode + memberwise inits) | 19 |
+
+**Manual validation needed on Mac:**
+1. Xcode compile clean.
+2. Settings → confirm every section populates from your real `config.yaml`. Tap the "View source" disclosure to verify the raw text matches what's on the remote.
+3. Cron: toggle a job's enabled flag, verify it survives a full refresh + relaunch. Swipe-to-delete a job. Tap "+" to create a new job; verify prompt + schedule + skills round-trip. Tap an existing job to edit; verify runtime fields (lastRunAt, deliveryFailures) aren't reset.
+4. Skills: unchanged from M5, still browse-only.
+
+**Rules next phases can rely on:**
+- **Any test that touches `ServerContext.sshTransportFactory` or any other global mutable state MUST live in `M5FeatureVMTests`** (the single `.serialized` suite) — or introduce a new cross-suite synchronization primitive. Swift-testing's `.serialized` does NOT serialize across suites.
+- **YAML parser in ScarfCore is a hard ceiling** — it handles the Hermes config subset, not arbitrary YAML. If a future Hermes version adds constructs the parser doesn't cover (flow-style `[...]`, anchors, `&` references, multi-line `|` blocks), port them on both sides simultaneously.
+- **Settings writes stay deferred** until a round-trip-preserving YAML writer ships. Options: (a) hand-write one, (b) adopt a YAML lib (adds dependency), (c) delegate to `hermes config set` via ACP.
+- **Cron editing on iOS is atomic per-save** — full jobs.json rewrites on every change. Fine for current cron sizes (dozens of jobs). If that grows into the thousands, consider partial updates via `hermes cron add/rm/toggle` over ACP.
+- **Skills install (git-clone + validation over SSH)** remains deferred — it's its own project. The iOS Skills list is read-only; users install from the Mac app or by cloning directly to the remote.
+
+### M7 — pending (post-testing App Store submission + any polish that surfaces)