skills/flutter/SKILL.md
Flutter patterns — widget architecture, state management, Impeller renderer, platform-adaptive design
npx skillsauth add xoai/sage flutterInstall this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.
3 of 9 scanners reported clean
Some scanners were skipped, did not run, or reported a non-clean status. Review each row below.
Layer 2 — Framework Pack
Flutter patterns for modern development (3.x+). Widget architecture, state management, Impeller renderer, platform-adaptive design, and the common mistakes agents make from outdated tutorials.
Flutter's "everything is a widget" model is simultaneously its greatest strength
and the main source of agent mistakes. Agents build monolithic widget trees with
thousands of lines, misuse setState for everything, nest widgets 15 levels
deep, and ignore the widget lifecycle. This pack establishes clean widget
architecture, proper state management selection, and Impeller-era performance
patterns.
| Type | Files | Coverage | |------|-------|----------| | Patterns | 7 | Widget architecture, state management, async/data, navigation, platform-adaptive, testing, performance | | Anti-patterns | 5 | God widgets, setState everywhere, ignoring dispose, hardcoded dimensions, unnecessary packages | | Constitution | 1 | 5 Flutter-specific principles | | Gate | 1 | Flutter pattern compliance check |
tools
Captures agent mistakes, corrections, and discovered gotchas so they are not repeated. Use when: (1) a command or operation fails unexpectedly, (2) the user corrects the agent, (3) the agent discovers non-obvious behavior through debugging, (4) an API or tool behaves differently than expected, (5) a better approach is found for a recurring task. Also searches past learnings before starting tasks to avoid known pitfalls. Activate alongside the sage-memory skill — they share the same MCP backend but serve different purposes (sage-memory = codebase knowledge, sage-self-learning = agent mistakes and gotchas).
development
Typed knowledge graph stored in sage-memory. Use when creating or querying structured entities (Person, Project, Task, Event, Document), linking related objects, checking dependencies, planning multi-step actions as graph transformations, or when skills need to share structured state. Trigger on "remember that X is Y", "what do I know about", "link X to Y", "show dependencies", "what blocks X", entity CRUD, cross-skill data access, or any request involving structured relationships between things.
tools
Integrates sage-memory into Sage workflows. Teaches the agent when to remember (store findings during work), when to recall (search memory at session start and task start), and how to learn (structured knowledge capture via sage learn). Use when the user mentions memory, remember, recall, learn, capture knowledge, onboard to codebase, or when starting any session where sage-memory MCP tools are available.
tools
Captures agent mistakes, corrections, and discovered gotchas so they are not repeated. Use when: (1) a command or operation fails unexpectedly, (2) the user corrects the agent, (3) the agent discovers non-obvious behavior through debugging, (4) an API or tool behaves differently than expected, (5) a better approach is found for a recurring task. Also searches past learnings before starting tasks to avoid known pitfalls. Activate alongside the sage-memory skill — they share the same MCP backend but serve different purposes (sage-memory = codebase knowledge, sage-self-learning = agent mistakes and gotchas).