flutter-review

Flutter Code Review

This command invokes the flutter-reviewer agent to review Flutter/Dart code changes.

What This Command Does

1. Gather Context: Review git diff --staged and git diff
2. Inspect Project: Check pubspec.yaml, analysis_options.yaml, state management solution
3. Security Pre-scan: Check for hardcoded secrets and critical security issues
4. Full Review: Apply the complete review checklist
5. Report Findings: Output issues grouped by severity with fix guidance

Prerequisites

Before running /flutter-review, ensure:

1. Build passes — run /flutter-build first; a review on broken code is incomplete
2. Tests pass — run /flutter-test to confirm no regressions
3. No merge conflicts — resolve all conflicts so the diff reflects only intentional changes
4. flutter analyze is clean — fix analyzer warnings before review

When to Use

Use /flutter-review when:

• Before submitting a PR with Flutter/Dart changes (after build and tests pass)
• After implementing a new feature to catch issues early
• When reviewing someone else's Flutter code
• To audit a widget, state management component, or service class
• Before a production release

Review Areas

Area	Severity
Hardcoded secrets, cleartext HTTP	CRITICAL
Architecture violations, state management anti-patterns	CRITICAL
Widget rebuild issues, resource leaks	HIGH
Missing dispose(), BuildContext after await	HIGH
Dart null safety, missing error/loading states	HIGH
Const propagation, widget composition	HIGH
Performance: expensive work in build()	HIGH
Accessibility, semantic labels	MEDIUM
Missing tests for state transitions	HIGH
Hardcoded strings (l10n)	MEDIUM
Pub dependency hygiene	LOW

Example Session

User: /flutter-review

Agent:
# Flutter Code Review

## Context

Changed files:
- lib/features/auth/presentation/login_page.dart
- lib/features/auth/data/auth_repository_impl.dart

State management: Riverpod (detected from pubspec.yaml)
Architecture: feature-first

## Security Pre-scan

✓ No hardcoded secrets detected
✓ No cleartext HTTP calls

## Review Findings

[HIGH] BuildContext used after async gap without mounted check
File: lib/features/auth/presentation/login_page.dart:67
Issue: `context.go('/home')` called after `await auth.login(...)` with no `mounted` check.
Fix: Add `if (!context.mounted) return;` before any navigation after awaits (Flutter 3.7+).

[HIGH] AsyncValue error state not handled
File: lib/features/auth/presentation/login_page.dart:42
Issue: `ref.watch(authProvider)` switches on loading/data but has no `error` branch.
Fix: Add error case to the switch expression or `when()` call to show a user-facing error message.

[MEDIUM] Hardcoded string not localized
File: lib/features/auth/presentation/login_page.dart:89
Issue: `Text('Login')` — user-visible string not using localization system.
Fix: Use the project's l10n accessor: `Text(context.l10n.loginButton)`.

## Review Summary

| Severity | Count | Status |
|----------|-------|--------|
| CRITICAL | 0     | pass   |
| HIGH     | 2     | block  |
| MEDIUM   | 1     | info   |
| LOW      | 0     | note   |

Verdict: BLOCK — HIGH issues must be fixed before merge.