Download Latest Version v0.4.0 -- The Big Upgrade_ one still - a whole game-ready sprite set source code.zip (86.9 MB)
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One still → a whole game-ready sprite set

Approve one generated character still, and Agent Sprite Forge turns it into every action your game needs. Each action is keyed, looped or retimed, finished and exported. It works in Claude Code (new plugin), Codex and Grok.

▶ Watch the 60-second launch video (attached below: asf-v0.4.0-promo.mp4)

Six actions from one approved still

The finished set running in a game scene

Every frame above is real output from the 2026-10-06 live runs. Nothing is mocked up.

What's new: the big upgrade

  • master_still.py → sprite_set.py: one approved master still, then one image-to-video clip per action. Every clip gets:
  • automatic QC and retakes;
  • soft-matte keying and registration;
  • automatic loop selection and one-shot retiming;
  • an HD finish (default) or a crisp pixel finish;
  • verified packages.
  • Image generation first, wherever you run it: a configured API key comes first, then the local daemon (Codex CLI image_gen, Grok CLI image and image-to-video), and code art only as the last resort.
  • Official API support: OpenAI GPT Image 2.5, Google Gemini 3.1 Flash / 3 Pro Image, xAI Grok Imagine (image and video with last-frame pinning), BytePlus Seedream 5 / Seedance 2.x, and fal.ai (Kling v3, Veo 3.1, Luma Ray 3.2, MiniMax H3, Wan 3.0, Vidu Q3, LTX). Keys are read from the environment or a user config file and never logged; a spend ledger records every call.
  • Video quality: no more magenta fringe, an HD colour lock towards the master, snappy game-speed one-shots, and seamless loops.
  • Claude Code plugin, plus forge_doctor to check which routes are ready.
  • Maps:
  • map_bundle v2;
  • a single collision model shared by Python and the JS runtime;
  • reachability checks;
  • Tiled, Godot and LDtk exports;
  • a walkable scene preview.
Measured on the same inputs 0.3 0.4
Keyer fringe on a Grok clip 0.704 0
Key-colour pixels leaked (145 frames) 7,780 0
Keying time (145 frames) 271 s 44 s
Pixel fox colours per frame / alpha levels 594–709 / 199 16–19 / 2
Attack clip after retiming 4.1 s 0.7 s
Good takes wrongly rejected by QC 18/24 0/24

Pixel fox, 0.3 vs 0.4 at 4x Slow-motion attack vs game-speed attack

Install

Claude Code:

claude plugin marketplace add 0x0funky/agent-sprite-forge --sparse .claude-plugin skills
claude plugin install agent-sprite-forge@agent-sprite-forge

For Codex and Grok, see the README. The full list of changes, including each breaking default and its legacy switch, is in the CHANGELOG.

Not verified yet:

  • imports into the Godot, LDtk, Aseprite and Tiled editors (checked at parse level only);
  • live calls through the API routes: the adapters follow each vendor's documentation and have mocked tests, and reports from the community are very welcome.

繁體中文

一張原畫 → 整套可直接放進遊戲的 sprite。

先核准一張生成的角色原畫，ASF 會為每個動作各生成一支圖生影片。接著自動完成以下步驟：

  • 品質把關與重拍
  • 去背（紫邊歸零）
  • 對位
  • 挑出無縫循環、把單次動作重新計時到遊戲節奏
  • HD 或像素版後製
  • 匯出

支援 Claude Code（新 plugin）、Codex 與 Grok。生圖路線依序是：有設定 API key 就走 API（OpenAI、Gemini、xAI、BytePlus、fal.ai），否則改用本機的 Codex 或 Grok，最後才是程式繪圖（code art）。附件中有 60 秒宣傳影片。

Source: README.md, updated 2026-10-06