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[rules] Add packages/flutter_tools/gradle/AGENTS.md rules - #191486
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This pull request introduces a new rules and best practices document for the Flutter Gradle Plugin, covering configuration cache compatibility, build performance, and lazy configuration. The review feedback suggests expanding the lazy configuration guidelines to include lazy collection properties, adding a rule to use Gradle service injection instead of Project helper methods for configuration cache compliance, and clarifying the syntax and usage of path normalization annotations.
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Roll Flutter from c2437523d308 to 65c9a8dc60bc (195 revisions) flutter/flutter@c243752...65c9a8d 2026-08-22 [email protected] Roll ICU from d578f2e8b7bd to 8cc91d9b6ab9 (1 revision) (flutter/flutter#191542) 2026-08-22 [email protected] Roll Skia from 666a9b3d5cf0 to ad2106c0bb64 (3 revisions) (flutter/flutter#191527) 2026-08-22 [email protected] Roll Fuchsia Test Scripts from KaOq3EE4qJ9fnaaaK... to 0iCv10IlKfiilEBOU... (flutter/flutter#191524) 2026-08-22 [email protected] [flutter_tools] Add tests for negative lookahead regex in test runner and batch entrypoints (flutter/flutter#191438) 2026-08-22 [email protected] Roll Skia from 0c37868737fa to 666a9b3d5cf0 (2 revisions) (flutter/flutter#191518) 2026-08-21 [email protected] Revert "[input] Migrate fuchsia.ui.pointerinjector to TouchSource (#190855) (flutter/flutter#191509) 2026-08-21 [email protected] Fixes windows gallery benchmarks by forcing mobile layout (flutter/flutter#191507) 2026-08-21 [email protected] [flutter_tools] Restrict WebAssetServer source resolution to source map extensions (flutter/flutter#191501) 2026-08-21 [email protected] Roll Skia from f6900c5b8439 to 0c37868737fa (2 revisions) (flutter/flutter#191504) 2026-08-21 [email protected] Refactor `FlutterDevice.connect` and VM service discovery (flutter/flutter#191221) 2026-08-21 [email protected] [flutter_tools] Fix crash when migrating flow-style exclude lists in analysis_options.yaml (flutter/flutter#191269) 2026-08-21 [email protected] [rules] Add packages/flutter_tools/gradle/AGENTS.md rules (flutter/flutter#191486) 2026-08-21 [email protected] [flutter_tools] refactor CLI argument architecture with typed option descriptors and bundles (PoC) (flutter/flutter#191018) 2026-08-21 [email protected] tools: Extract Dart SDK to temp directory before moving to final location (flutter/flutter#191263) 2026-08-21 [email protected] [web] Move CanvasKit fragment shader classes to canvaskit/fragment_shader.dart (flutter/flutter#191451) 2026-08-21 [email protected] Roll Fuchsia Linux SDK from GCQlmt6h-esJsNubS... to ic6GjOSn-KN508XyK... (flutter/flutter#191485) 2026-08-21 [email protected] [Widget Preview] Isolate PageStorage scope in widget preview group expansion tile (flutter/flutter#191378) 2026-08-21 [email protected] [flutter_tools] Deprecate --build and --no-build flags on flutter run (flutter/flutter#191358) 2026-08-21 [email protected] Roll Skia from 70988bed1b3b to f6900c5b8439 (2 revisions) (flutter/flutter#191481) 2026-08-21 [email protected] Roll Packages from 1785501 to 252bb33 (6 revisions) (flutter/flutter#191480) 2026-08-21 [email protected] Roll Fuchsia Linux SDK from 20IJas24bZiNmCZTK... to GCQlmt6h-esJsNubS... (flutter/flutter#191415) 2026-08-21 [email protected] Roll Skia from 2ba6971bd0d1 to 70988bed1b3b (2 revisions) (flutter/flutter#191476) 2026-08-21 [email protected] Roll Skia from 1d5f72537ba6 to 2ba6971bd0d1 (2 revisions) (flutter/flutter#191473) 2026-08-21 [email protected] Roll Skia from 2c25efd2e369 to 1d5f72537ba6 (1 revision) (flutter/flutter#191472) 2026-08-21 [email protected] Roll Skia from 09b1b810850a to 2c25efd2e369 (9 revisions) (flutter/flutter#191470) 2026-08-21 [email protected] [Impeller] fix position of cached single glyph text shadows (flutter/flutter#191325) 2026-08-21 [email protected] Roll Skia from abdf8821f313 to 09b1b810850a (15 revisions) (flutter/flutter#191458) 2026-08-21 [email protected] Document that programmatic TextEditingController changes do not run input formatters (flutter/flutter#190166) 2026-08-21 [email protected] Adds new gallery benchmarks to windows (skia and impeller) (flutter/flutter#191454) 2026-08-21 [email protected] iOS: Deprecate FlutterEngine.isGpuDisabled (flutter/flutter#191393) 2026-08-21 [email protected] Revert: [web] Unskip decoration image lerp tests (flutter/flutter#191462) 2026-08-20 [email protected] android_hardware_smoke_test: Improve reliability (flutter/flutter#191374) 2026-08-20 [email protected] Don't size or offset the Android platform view before it is laid out (flutter/flutter#190895) 2026-08-20 [email protected] [iOS][add2app] Skip building SwiftPM plugins when generating CocoaPods artifacts (flutter/flutter#190736) 2026-08-20 [email protected] Optimize JSONMessageCodec UTF-8 conversion (flutter/flutter#190529) 2026-08-20 [email protected] [FML] Replace deprecated wstring_convert with Win32 APIs (flutter/flutter#191394) 2026-08-20 [email protected] SliverFillRemaining extends beyond viewport size when fillOverscroll is true (flutter/flutter#191236) 2026-08-20 [email protected] [flutter_tools] Update argParser usageLineLength when --wrap-column is passed (flutter/flutter#191264) 2026-08-20 [email protected] [flutter_tools] Fix UNC path resolution in depfile parsing on Windows (flutter/flutter#191265) 2026-08-20 [email protected] [web] Unskip decoration image lerp tests (flutter/flutter#191426) 2026-08-20 [email protected] Do not inject 'type' and 'method' into service extension responses (flutter/flutter#190946) 2026-08-20 [email protected] [flutter_tools] Fix crash in symbolize command on stream error (flutter/flutter#191273) 2026-08-20 [email protected] [flutter_tools] Prevent deletion of shared native asset hooks outputs as stale (flutter/flutter#191272) 2026-08-20 [email protected] [flutter_tools] Support package wildcard assets in app pubspec (flutter/flutter#191266) 2026-08-20 [email protected] Add SliverClipRect and SliverClipRRect (flutter/flutter#179003) 2026-08-20 [email protected] [flutter_tools] Implement Diagnostics extension slice and doctor integration (flutter/flutter#191162) ...
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This work came in response to pr #191218 and a conversation with @gmackall about how I did not think the new dsl migration counted as "agentic engineering" because I was not doing the work like we have as part of project one shot in camera_android_camerax. Really the new dsl work is a great opportunity to lay out some of the patterns we have found.
@gmackall to double check the engineering principals and add any others he thinks are important.
@camsim99 to help review agents.md. @camsim99 we have no skills or really much documentation so the agents.md file has more primary logic than I would normally like but I think in this case it is ok.
The purpose is to give agents working on the flutter gradle plugin guidance for what we consider important and how we want to architect work.
There are no evals in flutter/flutter so I have not written any. This is acknowledged technical debt so we can get the benefit of this steering on follow-up new dsl prs (4-11).
I consider this newDsl pr 3.1.
Agent authored description
Description
This PR introduces
packages/flutter_tools/gradle/AGENTS.mdfollowing Jetski's directory-scopedAGENTS.mdstandard. This defines workspace architectural rules, configuration cache compatibility, and development practices for the Flutter Gradle Plugin (FGP).Key Rules Included:
includeBuild); forbids contributor verification tasks or lifecycle hooks (check.dependsOn/test.dependsOn) inbuild.gradle.kts, requiring standard JUnit tests or CI shards instead.@Suppress): Prohibits raw wildcard casts and@Suppress("UNCHECKED_CAST")when dealing with AGP domain objects; mandates type-safe APIs and compatibility bridges..get()during configuration phase; requires Gradle Lazy Provider chaining.Project,SourceSet, orConfigurationreferences in task instances.@PathSensitive(RELATIVE)orNAME_ONLYto maximize local and remote cache hits across machines.flutter.internal.property prefixing and full matrix verification across supported AGP/Gradle versions.Related Issues
Tests
Pre-launch Checklist
///).