{
  "compilerOptions": {
    // Base strict mode
    "strict": true,

    // === THE FIVE EXTRA FLAGS ===

    // 1. Array/object indexing returns T | undefined (not just T)
    "noUncheckedIndexedAccess": true,

    // 2. Optional properties (?) mean "absent", not "undefined"
    "exactOptionalPropertyTypes": true,

    // 3. Forces obj["key"] syntax for index signatures (explicit about dynamic access)
    "noPropertyAccessFromIndexSignature": true,

    // 4. Error on unused local variables
    "noUnusedLocals": true,

    // 5. Error on unused function parameters
    "noUnusedParameters": true,

    // === ADDITIONAL SAFETY ===

    // Error if switch case falls through without break
    "noFallthroughCasesInSwitch": true,

    // Error if function doesn't explicitly return in all paths
    "noImplicitReturns": true,

    // Force consistent casing in imports (catches cross-platform bugs)
    "forceConsistentCasingInFileNames": true,

    // Ensure imports resolve correctly
    "moduleResolution": "bundler",
    "module": "ESNext",
    "target": "ES2022",
    "lib": ["ES2023", "DOM", "DOM.Iterable"],

    // Isolated builds (required for most bundlers)
    "isolatedModules": true,
    "verbatimModuleSyntax": true,

    // Skip type-checking node_modules
    "skipLibCheck": true,
  },
}