* build: compileSdk 36 -> 37 + okhttp 5.4.0 -> 5.5.0 Take okhttp 5.5.0 (folds in dependabot PR #940) which hard-requires compileSdk 37 via AAR metadata. targetSdk stays 36 for now. * build: targetSdk 36 -> 37 (Android 17) + ACCESS_LOCAL_NETWORK gating Opt into Android 17 runtime behavior. The app connects to a gateway (default 127.0.0.1:9119, plus LAN + remote), so targeting 37 forces the new ACCESS_LOCAL_NETWORK permission for LAN hosts. - AndroidManifest: declare ACCESS_LOCAL_NETWORK (harmless below API 37) - LocalNetwork.kt: pure detector + needsLocalNetworkPermission(baseUrl) (loopback + public remote exempt; RFC1918/link-local/CGNAT gated) - ConnectViewModel: requestConnect() gates on the permission; screen launches the prompt; onLanPermissionResult proceeds or shows a clear error - flake.nix: android platform 36 -> 37 - Tests: LocalNetworkTest + ConnectPermissionGateTest (SDK_INT / permission branching mocked, no device needed) - Task 8 finding: assistant services (VoiceInteraction*/Recognition) and the remoteMessaging ChatNotificationService do NOT hit the Android 17 mic/ while-in-use foreground hardening, so no change required. * fix: ktlint + @Composable LocalContext hoist (was blocking CI) - ConnectScreen: hoist LocalContext.current out of onClick lambda (calling a @Composable inside a non-composable lambda broke compileDebugKotlin) - ktlint --format: multiline-expression-wrapping, function-signature, no-empty-first-line-in-class-body, no-unused-imports - LocalNetwork.kt: merge consecutive KDocs (no-consecutive-comments) flake.nix buildToolsVersion/platformToolsVersion intentionally stay 36.0.0 — they are decoupled from compileSdk; only platformVersions needs 37. * fix: suspend mock (coEvery) + flake toolchain pinned to 37.0.0 - ConnectPermissionGateTest: getStatus() is suspend → use coEvery (was breaking compileDebugUnitTestKotlin) - flake.nix: buildToolsVersion/platformToolsVersion/cmdLineToolsVersion pinned to 37.0.0 (verified against pinned nixpkgs 241313f — resolves to android-sdk-*-37.0.0 derivations; platformVersions already 37) * fix(flake): revert cmdLineToolsVersion to 11.0 (not API-aligned) cmdline-tools uses its own versioning (latest = 21.0, never 37.0.0) — nixpkgs rejects 37.0.0 with 'version missing'. build-tools + platform-tools stay 37.0.0 (verified resolve to android-sdk-*-37.0.0). flake now evals clean against pinned nixpkgs 241313f. * flake: track nixos-unstable + pin toolchain to latest (cmdline 22.0, platform-tools 37.0.1, build-tools 37.0.0, platform 37.1) - inputs.nixpkgs -> nixos-unstable, flake.lock bumped to rev ffb3c9b7 (2026-08-19) - cmdLineToolsVersion 11.0 -> 22.0 (own versioning, not API-aligned; v22_0 confirms) - platformToolsVersion 37.0.0 -> 37.0.1 - buildToolsVersion stays 37.0.0 - platformVersions 37 -> 37.1 - verified: nix flake check --no-build -> all checks passed on hyari * fix: unit tests — Uri stub + Build.SDK_INT final-field mock - LocalNetwork.kt: needsLocalNetworkPermission uses java.net.URI instead of android.net.Uri (latter is a non-functional stub in JVM unit tests, its host returns null -> gate always false). Added pure requiresLocalNetworkPermission(sdkInt, baseUrl). - ConnectViewModel: inject sdkVersion (package-private) instead of reading the final static Build.VERSION.SDK_INT directly; gate via requiresLocalNetworkPermission. - ConnectPermissionGateTest: drop mockkStatic(Build.VERSION) (MockKException on final static field, and against repo convention); inject sdkVersion; add pure gate-decision matrix. Fixes 7 red tests. * fix(test): remove illegal ':' from test function names (compile error) * fix(test): order getString mocks so specific resources win over wildcard * fix(flake): include android-37.0 system image so the emulator can boot Google only publishes the android-37.0 system image (no 37.1 image exists yet). With platformVersions=["37.1"] composeAndroidPackages found no matching system image, leaving system-images/ empty and every AVD FATALing with 'Broken AVD system path'. Adding 37.0 pulls the published image so an AVD boots (verified: hermes37 AVD boots Android 17 / API 37 on hyari). compileSdk/targetSdk stay 37. Also bump AGENTS.md SDK note 36 -> 37 (was stale). * fix(flake): platformVersions 37.1 -> 37.0 Drop 37.1; 37.0 provides both the SDK platform for compileSdk 37 and the published android-37.0 system image the emulator needs. * fix(flake): remove stray tool-scratch line leaked into flake.nix (line 116) A terminal tool's /tmp scratch rename line got appended to flake.nix, making it invalid Nix. Removed; flake now parses + 'nix flake check' passes on hyari. * fix(build): pin buildToolsVersion 37.0.0 to match nix SDK AGP defaulted build-tools to 36.0.0, which isn't in the nix-managed SDK (only 37.0.0 is provisioned). Local ./gradlew builds then tried to *install* 36.0.0 into the immutable /nix/store and failed. Pin 37.0.0 so the local nix devShell builds. CI uses its own SDK so unaffected. --------- Co-authored-by: Hy4ri <Hy4ri@users.noreply.github.com>
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AGENTS.md
Guidance for AI coding agents working on this repository. This complements README.md (for humans) with agent-focused context.
Project Overview
Hermes Mobile is a Jetpack Compose Android app — a mobile control panel for Hermes Agent. It talks to the Hermes dashboard's REST API and WebSocket TUI Gateway (JSON-RPC 2.0) over a trusted LAN.
- Package:
com.m57.hermescontrol - Min SDK 26 / Target SDK 37 / Compile SDK 37
- Kotlin 2.4.10, KSP 2.3.10 (standalone versioning, NOT
kotlinVersion-kspVersion) - Jetpack Compose, Room 2.7.x, Navigation3, OkHttp WebSocket, Retrofit, Kotlinx Serialization
- Auth:
EncryptedSharedPreferences(AES256-GCM), Bearer token (REST) +?token=(WS)
Build & Test Commands
✅ Local Android SDK — if available
If you have a local Android SDK (ANDROID_HOME set), these work:
./gradlew assembleDebug # full APK build
./gradlew testDebugUnitTest # unit tests (MockK)
./gradlew ktlintCheck # style check
ktlint standalone (no SDK needed):
# Download the matching binary
curl -sSLO https://github.com/pinterest/ktlint/releases/download/1.2.1/ktlint
chmod +x ktlint
./ktlint <file> # check one file
./ktlint --format <file> # auto-fix
No SDK? CI handles everything — push small and watch the checks below.
CI pipeline (.github/workflows/android.yml)
| Job | Purpose |
|---|---|
ktlint |
ktlint 1.2.1 style check + checkColorLiterals (hardcoded Color guard, issue #622) |
android-lint |
Android Lint |
unit-tests |
JUnit |
build |
assembleDebug (gated by the 3 above) |
release-compile |
compileReleaseKotlin — catches release-variant compilation issues (e.g. debugImplementation-scoped deps referenced in main source) |
instrumented-tests |
Compose UI tests on Android emulator (API 34 ATD) |
ci-summary |
Aggregator (if: always()) — branch protection gates on THIS check |
Also: There is a separate workflow merge-conflict-detector.yml that auto-labels PRs with has-conflicts.
Every Gradle job validates gradle-wrapper.jar and uses the remote build cache
(GRADLE_ENCRYPTED_KEY secret). concurrency.cancel-in-progress: true.
Releasing (.github/workflows/release.yml)
Triggers on git push tag v*. Release APK uses R8 minification + resource shrinking.
Requires permissions: contents: write on the build-release job.
Code Style
- ktlint 1.2.1 is enforced in CI. Run
./ktlint --formatbefore pushing. - Import ordering is the #1 CI failure: ktlint enforces ASCII-lexicographic order
(uppercase before lowercase:
LaunchedEffectbeforecollectAsState). const valmust use SCREAMING_SNAKE_CASE.- Trailing commas required. No trailing whitespace.
- 120 char max line length.
Architecture Conventions
Navigation (Navigation3 — NOT Navigation Compose)
Uses androidx.navigation3 (NavKey, NavBackStack, NavDisplay, entry<T>).
⚠ Always route navigation through NavigationController.navigateTo(). Never call
backStack.add(ScreenKey) directly from UI callbacks — the controller has a
deduplication guard. Bypassing it stacks duplicate screen entries that compete for
touch events and become unresponsive.
Drawer gesture state is screen-owned (issue #619). Each screen declares whether
the modal drawer's swipe gestures should be active while it is visible, via a single
source of truth — no global gesture set, no defensive LaunchedEffect(snapTo(Closed)),
no closeDrawer callback on NavigationController.
HermesScaffold(drawerGesturesEnabled = true)— default; primary screens and most list screens. The scaffold reconciles this preference into theDrawerGestureControllervia aSideEffect.HermesScaffold(drawerGesturesEnabled = false)— drill-down sub-pages (e.g.SettingsConnectionPage,SettingsAppearancePage, …). The controller closes the drawer itself if it was open when the screen composed, so the scrim can't stick around and intercept the next tap.DisableDrawerGestures()— for entry screens that don't useHermesScaffold(Landing, AuthLogin, PairingCodeEntry).
ModalNavigationDrawer in Navigation.kt reads gestureController.enabled
(provided via LocalDrawerGestureController) and passes it to Material's
gesturesEnabled parameter. To change a screen's gesture behavior, edit the
screen — not Navigation.kt.
Activity-Scoped ViewModels
Some ViewModels (e.g. AuthLoginViewModel) are created at the Activity scope via
viewModel() at the navigation entry level. This means they survive navigation
and cached state like connectionSuccess persists across screen entries.
Always pair transient state flags with a DisposableEffect cleanup:
DisposableEffect(Unit) {
onDispose { viewModel.clearTransientState() }
}
The cleanup function should reset self-transitioning flags (connectionSuccess,
isLoading, errorMessage) so the screen can re-enter cleanly.
WebSocket Lifecycle
HermesWsClient is a singleton that outlives individual screens. It must be
explicitly disconnected on logout and reconnected after login:
| Event | Action |
|---|---|
| Logout | HermesWsClient.disconnect() before clearing tokens |
| Login success | HermesWsClient.connect() after ApiClient.rebuild() |
The singleton's connect() has a guard (if connected → skip) so it's safe to
call unconditionally.
Shared Components
HermesScaffold— drawer-aware Scaffold + TopAppBar with refresh slot, pull-to-refresh, optional snackbar host. New screens MUST use this instead of rawScaffold. API:title: @Composable () -> Unit(notString— wrap in{ Text("...") }).StateViews—LoadingState,ErrorState,EmptyState. Every data screen must implement all three branches in itswhen { }block.
⚠ HermesScaffold Padding Foot-Gun
This is the #1 recurring bug in this codebase. It has been re-introduced on 4+ screens across 3+ PRs (Settings, Achievements, Webhooks, Config — PRs #445, #454, #455).
Root cause: HermesScaffold wraps content in an internal Box(Modifier.padding(paddingValues))
that already offsets for the top bar. But it also passes paddingValues into the content lambda,
which looks like it should be applied — and every new screen does exactly that:
HermesScaffold(...) { paddingValues -> // ← scaffold already handles top bar offset via Box
LazyColumn(
modifier = Modifier
.fillMaxSize()
.padding(paddingValues), // ← ❌ double-stacked top padding
contentPadding = listContentPadding, // ← extra 8dp, now triple-stacked
) { ... }
}
The deeper issue: Passing paddingValues into the lambda implies "you need to use this,"
when the scaffold has ALREADY pre-applied it in its own outer Box. This API design creates
a natural foot-gun: every developer instinctively adds .padding(paddingValues) on inner
content because it seems correct.
Correct pattern — do NOT apply paddingValues on inner content:
// ✅ List screens:
LazyColumn(
modifier = Modifier.fillMaxSize(), // no .padding(paddingValues)!!
contentPadding = listContentPadding, // this is the ONLY padding needed
verticalArrangement = listItemSpacing,
)
// ✅ Non-list screens (Column/Box wrapping):
Column(
modifier = Modifier.fillMaxSize(), // no .padding(paddingValues)!!
) { ... }
// ✅ Loading/Error/Empty states — these DO need it:
LoadingState(modifier = Modifier.padding(paddingValues))
Quick test: If your screen's top gap is wider than CronJobsScreen's, you've double-stacked.
See also: references/hermes-scaffold-padding.md in the skill doc for the full
breakdown, edge cases, and timeline of previous occurrences.
Room Persistence
ChatMessageEntity/ChatMessageDao/HermesDatabase— chat messages survive app kills.getMessagesForSession()returnssuspend fun ...: List<ChatMessageEntity>(notFlow— the caller controls the coroutine scope).- Room 2.7.x requires
room { schemaDirectory("$projectDir/schemas") }DSL. ChatViewModelextendsAndroidViewModel(needs Application for DB access).
Theme
Theme.kt uses a preset-based theme system with 6 built-in presets: Default,
Monochrome, Gruvbox, Catppuccin, AMOLED, and Nord. Each preset provides light
and dark color schemes plus matching semantic status colors (AMOLED is
dark-only — light mode falls back to the default theme).
Every preset is a ThemePalette template fill (PaletteTemplate.kt): raw
PaletteColors + HermesStatusColors mapped into the Material 3
ColorScheme slots, with the error slots derived from the status set.
Dynamic color (Material You on API 31+) is controlled by a useDynamicColors
parameter on HermesControlTheme, not a compile-time constant. When dynamic
colors are active they override the preset's ColorScheme, but semantic status
colors (success/warning/error/info) are ALWAYS resolved from the active preset
via LocalHermesStatusColors — never from MaterialTheme.colorScheme.
Access status colors via LocalHermesStatusColors.current.success, not
MaterialTheme.colorScheme.
Git Workflow
PR-Always (ENFORCED)
Every change goes through a PR. Never push directly to main.
git checkout main && git pull origin main
git checkout -b fix/issue-N-description # or feat/...
# make changes, run ./ktlint --format
git commit -m "fix(#N): description"
git push -u origin HEAD
gh pr create --title "fix(#N): description" --body "Closes #N"
Commit Conventions — STRICT
⚠ Agent-authored commits: Do NOT override git authorship (--author) with the agent's identity. Use the default git config. No Co-Authored-By or Generated with trailers.
- Short commits: subject line + max 2 lines of body. Split into atomic commits rather than writing long bodies.
- Conventional Commits types:
feat,fix,refactor,docs,test,ci,chore. - Bug fixes annotated inline with the tracking issue/regression ID.
Security Considerations
- Cleartext HTTP/WS is intentional — trusted LAN only.
usesCleartextTraffic="true"andhttp:///ws://URLs are by design. Don't "fix" this unless adding HTTPS support. HttpLoggingInterceptor.Level.BODYmust stay gated onBuildConfig.DEBUG— it prints the Authorization header. (B1)- AuthManager token is ephemeral — it becomes invalid when the Hermes dashboard restarts. Symptom: 401 on every call. Fix: re-extract the token from the running gateway, don't assume the stored one is valid.
- Release signing uses a keystore with env-var credentials (
KEYSTORE_PATH,KEYSTORE_PASSWORD,KEY_ALIAS,KEY_PASSWORD). Don't commit keystore files or hardcode passwords.
Things to Avoid
- Don't run
./gradlewtasks without an Android SDK — CI handles compilation, lint, and tests. - Don't remove
@OptIn(ExperimentalMaterial3Api::class)from screens that useSegmentedButton,PullToRefreshBox, or other experimental M3 APIs. - Don't access
MaterialTheme.colorScheme.*inside non-@Composablelambdas (remember {},buildAnnotatedString,LaunchedEffect). Extract to a localvalat the composable scope first. - Don't add new screens without checking if an existing one already covers the functionality (28+ screens exist). Extend rather than duplicate.
- ⚠ Never scope a dependency to
debugImplementationif its import is used inmain/source code. The CIrelease-compilejob catches this, but save the cycle.okhttp3.logging.HttpLoggingInterceptoris the classic example — it's imported inApiClient.kt(main source) so it must beimplementation, notdebugImplementation. If you want it debug-only, wrap the usage inif (BuildConfig.DEBUG)or extract it behind an interface.
Hardcoded Color Guard (issue #622)
A custom Gradle task checkColorLiterals fails the build if Color(0x...) hex
literals or named Color.White/Color.Black/etc. appear outside the allowed
paths (theme/, *Preview.kt, PairingScreen.kt, AuthLoginScreen.kt).
Use MaterialTheme.colorScheme.<token>, LocalHermesStatusColors.current.<semantic>,
or Color.Transparent / Color.Unspecified instead. The guard runs in CI as part
of the ktlint job.
Project Layout
com.m57.hermescontrol/
├── data/
│ ├── config/ ServerStore, ConnectionProfile, migrations
│ ├── local/ AuthManager, Room (ChatMessageEntity/Dao, HermesDatabase), AnalyticsCacheStore
│ ├── model/ 40+ data classes for API responses + requests
│ ├── remote/ ApiClient, Retrofit service, OkHttp provider, cookie management
│ ├── session/ ActiveSessionHolder
│ └── ws/ HermesWsClient, JSON-RPC models, WsEvent, BillingRepository
├── notification/ ChatNotificationService, NotificationReplyReceiver
├── theme/ Color, Theme, Motion, Spacing, Shapes, Type, HermesStatusColors
│ └── presets/ Default, Monochrome, Gruvbox, Catppuccin, AMOLED, Nord
├── ui/
│ ├── common/ HermesScaffold, StateViews, SharedComponents, DetailDialog, DetailRows
│ └── 28 feature packages (achievements, analytics, authlogin, billing, channels,
│ chat, config, connect, cron, gateway, kanban, keys, landing, logs, mcp,
│ model, pairing, plugins, process, profiles, providers, sessions, settings,
│ skills, system, toolsets, webhooks)
├── util/ CronExpressionFormatter, LocaleContextWrapper
├── HermesControlApp.kt Application class
├── Navigation.kt Drawer + NavDisplay + entry wiring
├── NavigationController.kt Central navigation guard (dedup)
├── NavigationKeys.kt @Serializable NavKey data objects (28 screens + 6 settings sub-pages)
├── ScreenRegistry.kt entry<T> registrations for all NavKeys
└── MainActivity.kt
Further Reading
- README.md — human-facing overview, features, screenshots, tech stack
- CONTRIBUTING.md — contributor workflow, PR checklist, code style
- .github/workflows/android.yml — CI pipeline source of truth
- .github/workflows/merge-conflict-detector.yml — auto-labels conflicting PRs