ReactLynx Best Practices

ReactLynx best practices covering dual-thread architecture and React patterns. Provides rules reference for writing, static analysis for reviewing, and auto-fix for refactoring.

When to Apply

This skill should be used when:

• Writing new ReactLynx components or application → Reference rules as guidelines
• Reviewing existing ReactLynx code → Use scanner to detect issues
• Refactoring ReactLynx code → Use auto-fix with user approval

Input

This skill accepts the following inputs:

Input	Required	Description
sourceCode	No	The ReactLynx source code to analyze (string or file path)
mode	No	Workflow mode: writing, review, or refactor. Auto-detected if not specified

Mode Auto-Detection

When mode is not explicitly provided, the skill will determine the appropriate mode based on context:

Context	Auto-Selected Mode
User is asking for best practices or guidelines	writing
User wants to check/analyze existing code for issues	review
User wants to fix/refactor code with auto-fixes	refactor

Workflow Modes

📝 Writing Mode

When writing new ReactLynx code, reference the rules in rules/*.md as best practice guidelines. See also the Rules section below for a summary of all available rules.

Use this mode when:

• User is creating new ReactLynx components or application
• User asks "how should I write..." or "what's the best practice for..."
• No existing code to analyze

🔍 Review Mode

When reviewing code, do both:

1. Use the scanner (scripts/index.mjs) to analyze source code for issues
2. Combine findings with rules/*.md explanations to generate a rule-aware report

Use this mode when:

• User provides code and asks to "check", "review", or "analyze" it
• User wants to know if their code has any issues
• User asks "is this code correct?" or "any problems with this?"

Report requirements (must include):

• Scan summary from workflow.reviewCode(sourceCode)
• Rule interpretation for each hit ruleId from rules/<ruleId>.md
• Severity/impact context from rule metadata (impact, impactDescription)
• Actionable suggestions based on rule guidance (not only raw diagnostics)

node -e "
import fs from 'fs';
import { ReactLynxWorkflow, formatScanReport } from '<path_to_skill>/scripts/index.mjs';

// <sourceCode>: string (source code) or file path
const input = '<sourceCode>';
const sourceCode = fs.existsSync(input) ? fs.readFileSync(input, 'utf-8') : input;

const workflow = new ReactLynxWorkflow('review');
const summary = workflow.reviewCode(sourceCode);
console.log(formatScanReport(summary));
"

🔧 Refactor Mode

When refactoring, generate a fix plan and ask the user before applying.
In this mode, output must include both script results and a rules-aware report.

Use this mode when:

• User explicitly asks to "fix", "refactor", or "auto-fix" code
• User wants to apply suggested fixes from a previous review
• User says "please fix these issues" or "apply the fixes"

Report requirements (must include):

• Pre-fix scan summary and rule-aware interpretation
• Fix plan summary (fixableIssues, manualIssues, per-file changes)
• Post-fix outcome (appliedFixes) and remaining manual issues

TOOL CALL: AskUserQuestion(
  question: "🔧 Found {fixableIssues} auto-fixable issues. Would you like me to apply these fixes?",
  options: ["Yes, apply fixes", "No, show me the issues first", "Skip auto-fix"]
)

node -e "
import fs from 'fs';
import { ReactLynxWorkflow, formatFixPlan } from '<path_to_skill>/scripts/index.mjs';

// <sourceCode>: string (source code) or file path
const input = '<sourceCode>';
const sourceCode = fs.existsSync(input) ? fs.readFileSync(input, 'utf-8') : input;

const workflow = new ReactLynxWorkflow('refactor');
workflow.reviewCode(sourceCode);
const plan = workflow.generateFixPlan();

if (plan && plan.fixableIssues > 0) {
  console.log(formatFixPlan(plan));
  // ASK USER: 'Would you like me to apply these auto-fixes?'
  // If yes:
  const { fixed, appliedFixes } = workflow.applyAutoFixes(sourceCode);
  console.log('Fixed code:', fixed);
}
"

Rules

All rules are documented in the rules/ directory as Markdown files:

Rule	Impact	Description
detect-background-only	CRITICAL	Native APIs in background contexts, use 'background only' directive
proper-event-handlers	MEDIUM	Correct event handler usage
main-thread-scripts-guide	MEDIUM	Main thread scripts guide
hoist-static-jsx	LOW	Performance optimization

API Reference

For complete type definitions:

TOOL CALL: Read(<path_to_skill>/scripts/index.d.ts)

Exported Functions

function runSkill(source: string): Diagnostic[];
function runSkillWithFixes(source: string): DiagnosticWithFix[];
function analyzeBackgroundOnlyUsage(source: string): Diagnostic[];
function generateFixes(source: string, diagnostic: Diagnostic): Fix[];
function applyFix(source: string, fix: Fix): string;
function applyFixes(source: string, fixes: Fix[]): string;
function formatScanReport(summary: ScanSummary): string;
function formatFixPlan(plan: FixPlan): string;

Workflow Class

class ReactLynxWorkflow {
  constructor(mode: WorkflowMode);
  reviewCode(source: string): ScanSummary;
  generateFixPlan(): FixPlan | null;
  applyAutoFixes(source: string): { fixed: string; appliedFixes: Fix[] };
}

Key Types

type WorkflowMode = 'writing' | 'review' | 'refactor';

interface Diagnostic {
  ruleId: string;
  message: string;
  severity: 'error' | 'warning' | 'info';
  location: { start: { line: number; column: number }; end: { line: number; column: number } };
}

interface DiagnosticWithFix extends Diagnostic {
  fixes?: Fix[];
}

interface Fix {
  type: 'wrap-in-useEffect' | 'add-directive' | 'add-import' | 'move-to-event-handler';
  description: string;
  oldCode: string;
  newCode: string;
  location: { start: { line: number; column: number }; end: { line: number; column: number } };
}

interface ScanSummary {
  totalFiles: number;
  filesWithIssues: number;
  totalIssues: number;
  errorCount: number;
  warningCount: number;
  infoCount: number;
  results: ScanResult[];
}

interface FixPlan {
  totalIssues: number;
  fixableIssues: number;
  manualIssues: number;
  files: FilePlan[];
}