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I'd like to create a file called requirements.md in the plans folder at the root of the project. here's a description of the project:

The application will be an open-source sample hosted on GitHub in the flutter/demos directory. It aims to demonstrate the use of Flutter, Firebase AI Logic, and Gemini to produce an agentic workflow that can solve a small crossword puzzle (one with a size under 10x10)....lots more description of the app along with a sample puzzle screenshot...
Ask any questions you may have before you get started.

DRY (Don't Repeat Yourself) – eliminate duplicated logic by extracting shared utilities and modules.

Separation of Concerns – each module should handle one distinct responsibility.

Single Responsibility Principle (SRP) – every class/module/function/file should have exactly one reason to change.

Clear Abstractions & Contracts – expose intent through small, stable interfaces and hide implementation details.

Low Coupling, High Cohesion – keep modules self-contained, minimize cross-dependencies.

Scalability & Statelessness – design components to scale horizontally and prefer stateless services when possible.

Observability & Testability – build in logging, metrics, tracing, and ensure components can be unit/integration tested.

KISS (Keep It Simple, Sir) - keep solutions as simple as possible.

YAGNI (You're Not Gonna Need It) – avoid speculative complexity or over-engineering.

great. i'd like to work on the design with you to be created in a design.md file to be stored in the plans folder. please use the @GEMINI.md and @requirements.md files as input. ask any questions you may have before you get started.

please read the files in the @specs folder and create a corresponding tasks.md file in the same folder that lays out a set of tasks and subtasks representing the functionality of this app. lay out the top-level tasks as minimal new functionality that the user can see in the running app, step-by-step as each top-level task is completed. each top-level task should include sub-tasks for creating and running tests and updating the @README.md with a description of the current functionality of the app. ask any questions you may have before you get started.

Read the @tasks.md file and implement the first milestone.

Use git diff to find the new code and check it against the architectural principles listed here: @GEMINI.md. Make recommendations for important improvements.