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flutter-fix-layout-issues

Fixes Flutter layout errors (overflows, unbounded constraints) using Dart and Flutter MCP tools. Use when addressing "RenderFlex overflowed", "Vertical viewport was given unbounded height", or similar layout issues.

skills/flutter-fix-layout-issues/SKILL.md

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# Resolving Flutter Layout Errors

## Contents
- [Constraint Violation Diagnostics](#constraint-violation-diagnostics)
- [Layout Error Resolution Workflow](#layout-error-resolution-workflow)
- [Examples](#examples)

## Constraint Violation Diagnostics

Flutter layout operates on a strict rule: **Constraints go down. Sizes go up. Parent sets position.** Layout errors occur when this negotiation fails, typically due to unbounded constraints or unconstrained children. 

Diagnose layout failures using the following error signatures:

*   **"Vertical viewport was given unbounded height"**: Triggered when a scrollable widget (`ListView`, `GridView`) is placed inside an unconstrained vertical parent (`Column`). The parent provides infinite height, and the child attempts to expand infinitely.
*   **"An InputDecorator...cannot have an unbounded width"**: Triggered when a `TextField` or `TextFormField` is placed inside an unconstrained horizontal parent (`Row`). The text field attempts to determine its width based on infinite available space.