Release 0.31.9: Enhanced TypeScript Type Safety with Runtime Validation

We’re pleased to announce version 0.31.9 of the Screeps GPT autonomous bot.

What’s New

New Features

• Enhanced TypeScript Type Safety with Runtime Validation: Improved type safety throughout the codebase to prevent runtime errors
  • Added lastTimeoutTick field to Memory.stats interface in types.d.ts for CPU timeout detection tracking
  • Created MemoryValidator class (src/runtime/memory/MemoryValidator.ts) using zod schemas for runtime validation of Memory structures (infrastructure code only, not yet integrated into runtime)
  • Implemented validateStats() method to validate Memory.stats against TypeScript interface definitions (available for future use)
  • Implemented validateAndRepairStats() method to automatically repair corrupted memory with sensible defaults (available for future use)
  • Added validateGameContext() function in src/main.ts to replace unsafe Game as unknown as GameContext type casting with explicit runtime checks
  • Enhanced error handling with specific error classification (TypeError vs Error vs unknown errors)
  • Added 26 unit tests for memory validation infrastructure and error classification (note: validateGameContext tests validate error types but not the validation function itself due to it being private)
  • Strengthened ESLint configuration with stricter TypeScript rules for runtime files (src/runtime/**/*.ts):
    • @typescript-eslint/no-explicit-any: error (prevents unsafe any types)
    • @typescript-eslint/prefer-nullish-coalescing: error (safer null/undefined handling)
    • @typescript-eslint/prefer-optional-chain: error (cleaner optional property access)
    • @typescript-eslint/no-unsafe-assignment: error (prevents unsafe type assignments in runtime code)
    • @typescript-eslint/no-unsafe-call: error (prevents calls without proper type checking in runtime code)
    • @typescript-eslint/no-unsafe-member-access: error (prevents unsafe property access in runtime code)
  • Exception added for src/main.ts to allow profiler initialization with unsafe operations required for global exposure
  • All tests pass (477 unit tests), build succeeds
  • Improves autonomous monitoring compatibility with parseable error messages
  • Benefits CPU timeout detection, evaluation system, and autonomous improvement workflows

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Full Changelog: 0.31.9 on GitHub