fs-gg-persistence

Save and load versioned game state slots without file I/O.

Updated Jul 6, 2026
One-click install
npx skills add https://github.com/FS-GG/FS.GG.Game --skill fs-gg-persistence
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: fs-gg-persistence
Source: https://github.com/FS-GG/FS.GG.Game/tree/main/template/product-skills/fs-gg-persistence
Command: npx skills add https://github.com/FS-GG/FS.GG.Game --skill fs-gg-persistence

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) components.

What problem does it solve?

This Skill provides a mechanism to save and load game state without interacting with the file system, ensuring pure functional updates and deterministic behavior.

Core Features & Use Cases

  • Game State Persistence: Save and load game state as pure values, eliminating direct file I/O.
  • Versioned Slots: Save slots are versioned, allowing for future migration of saved states.
  • Use Case: For a game that requires saving progress, this Skill can be used to serialize the game state into an opaque payload and request saving, loading, or deleting a slot.

Quick Start

To save the current game state, use the fs-gg-persistence skill with the command 'save-game-state'.

Frequently Asked Questions about fs-gg-persistence

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I save and load game state without file I/O operations?

Game state persistence without file I/O is achieved by serializing the game state into an opaque payload and requesting saving, loading, or deleting a slot. This ensures pure functional updates and deterministic behavior.

What is deterministic game state management and when do I need it?

Deterministic game state management ensures pure functional updates and testable behavior by eliminating direct file system interactions. You need it when building games that require predictable state transitions and reliable testing.

How do I handle save slot versioning for future game state migration?

Save slot versioning is handled by designing save slots to include version metadata, allowing future migration of saved states. This approach supports evolving game state schemas without breaking previously saved progress.

Can I use fileless game state persistence for testable game development?

Yes, fileless game state persistence is designed for testable game development. By saving and loading game state as pure values without interacting with the file system, it ensures deterministic and testable game state management.

What are the limitations of fileless game state save and load mechanisms?

The fileless game state save and load mechanism requires serialization of game state and handling versioning and payload storage. It is limited to contexts where deterministic behavior and pure functional updates are prioritized over direct file system access.

What's the best way to serialize game state into an opaque payload?

The best way to serialize game state is to convert it into an opaque payload using serialization, then request saving, loading, or deleting a slot. This method eliminates direct file I/O and maintains deterministic updates.