AGENTS.md git:20261017.2a66b64A

Immutable. This exact content never changes and is served at /api/v1/blob/03ce8e09cab1a043.

# AFENTS.md

## Project overview

Kelivo is a cross-platform LLM chat client built with Flutter, targeting iOS, Android, macOS, Windows, and Linux. Package name is `Kelivo` — imports use `package:Kelivo/...`.

## Architecture

- **Feature-based structure**: `lib/features/<feature>/` with `pages/`, `widgets/`, `models/`, `utils/` subdirectories.
- **Desktop / mobile split**: most UI pages have separate desktop and mobile layouts (e.g. `home_desktop_layout.dart` / `home_mobile_layout.dart`). Desktop-only code lives in `lib/desktop/`. Use `ResponsiveHelper` from `lib/shared/responsive/` to branch by screen type.
- **State management**: Provider (`lib/core/providers/`).
- **Database**: Drift (`lib/core/database/`). Schema versions tracked in `drift_schemas/`.
- **Localization**: ARB-based (`lib/l10n/`), English template (`app_en.arb`). Run `flutter gen-l10n` after editing ARB files and commit the generated output.

## Pre-commit checklist

Format changed Dart files with `dart format`, including files under `lib/`,
`test/`, `integration_test/`, `dependencies/markstream/lib/`, and
`dependencies/markstream/test/`. Then run both packages before every commit;
all checks must pass:

```bash
dart analyze --fatal-infos lib test integration_test
flutter test
(cd dependencies/markstream && flutter pub get && dart analyze --fatal-infos && flutter test)
```

CI (`pr-check.yml`) enforces the same gates on every PR. Root-package checks
do not cover the `markstream` path package.

## Benchmarks are not tests

`test/perf/*_bench.dart` print timings and contain no `expect()`, so they cannot
fail. They are named out of the default `_test.dart` glob and so are skipped by
`flutter test`. Run one explicitly:

```bash
flutter test test/perf/timeline_scroll_bench.dart
```

## UI guidelines

- **Use app-defined widgets** from `lib/shared/widgets/` and `lib/shared/dialogs/` instead of raw Flutter/Material widgets wherever an equivalent exists (e.g. `SectionCard`, `CustomBottomSheet`, `IosFormTextField`, `IosCheckbox`, `InteractiveDrawer`).
- **BottomSheet**: both Flutter's built-in bottom sheet and `CustomBottomSheet` are fine on mobile. Never use any bottom sheet on desktop — use a dialog or another interaction pattern instead.
- **Icons**: use `lucide_icons_flutter`, not `Icons.*` from Material.
- **Animations**: use `flutter_animate` / `animations` for motion.
- When building a new page, create separate desktop and mobile layouts unless the page is trivially simple. Wire them together via `ResponsiveHelper`.

## Code style

- Do not preserve backward compatibility. Remove obsolete paths instead of adding compatibility layers, fallbacks, or migrations.
- Choose the simplest implementation that fully meets the current requirements. Avoid speculative abstractions, configuration, and indirection.
- Grow the system in layers. Start from the smallest version that works end to end, and add each new capability on top of a product that already works. Never trade a working product for unfinished complexity.
- Keep components modular and concerns clearly separated.
- Prefer established, well-maintained libraries when they reduce overall complexity or improve reliability. Do not reimplement common functionality without a clear reason.
- Lean on the dependencies already in the project before writing your own implementation or adding packages. Do not assume a library lacks a capability without checking its documentation and types.
- Make architectural decisions for the long term. Do not accept a stopgap that only works for now and is meant to be replaced later.

## Local dependencies

Several packages live under `dependencies/` and are referenced by path in `pubspec.yaml` (e.g. `gpt_markdown`, `mcp_client`, `flutter_tts`, `flutter_math_fork`, `downsize`). The analyzer excludes `dependencies/flutter_math_fork/**` and `dependencies/flutter_tts/**`.

## Useful commands

```bash
flutter pub get                             # install dependencies
flutter gen-l10n                            # regenerate l10n files
dart run build_runner build                 # regenerate Drift code
```