Agent Sprite Forge is a Codex-oriented workflow for producing reusable 2D game assets such as sprite sheets, map layers, transparent PNG frames, and animated GIFs. It supports game developers working with Godot, Unity, or other 2D workflows by combining image generation with local processing, asset validation, and engine-ready exports, and its catalogue skills provide the workflow.
Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add 0x0funky/agent-sprite-forge --skill generate2dspritegit clone --depth 1 https://github.com/0x0funky/agent-sprite-forgeWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/0x0funky/agent-sprite-forge/generate2dsprite)<a href="https://agentmods.dev/skills/0x0funky/agent-sprite-forge/generate2dsprite"><img src="https://agentmods.dev/badge/skills/0x0funky/agent-sprite-forge/generate2dsprite/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/0x0funky/agent-sprite-forge/generate2dsprite"><img src="https://agentmods.dev/badge/skills/0x0funky/agent-sprite-forge/generate2dsprite.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00223 | $0.03604 |
| Opus 5.5 | $0.00089 | $0.01442 |
| Sonnet 5.5 | $0.00045 | $0.00721 |
| Haiku 4.5 | $0.00022 | $0.00360 |
Grade A, and why
generate2dsprite scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 19d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
Copies of this mod
1 near-identical copy found in the catalogue:
- generate2dsprite — 100% identical, 0 lines differ
How it starts
The opening of the file, as written. The whole thing — 107 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Generate 2D Sprite
Make the smallest asset bundle the game needs, at its real display size, camera and style. Game logic (collision, damage, timing) stays independent of the art.
Use when
- A character, creature, prop, item, icon or FX is needed as a master still, a sheet or clips.
- Frames already exist (generated, painted, code-drawn) and need clips, palettes or an engine export.
Do not use when
- Maps, tiles, terrain, parallax or scene plates: generate2dmap.
- Animating a character: approve one master here, then video2dsprite makes one clip per action (video-handoff.md).
- Code-drawn art the user asked for: codeart2d. Only an API or CLI call: generate2dmedia.
Capability check (once per session)
Run python "<skill-dir>/../generate2dmedia/scripts/forge_doctor.py" --host-tools <tools> --save <output>/doctor.json, where <tools> lists the media tools in your own tool list (image_gen, image_edit, image_to_video) or none. Its ROUTES block shows which API keys are configured (yes or no), the local readiness and the resolved order. If encoding.stdout fails, set PYTHONUTF8=1.
Art source
Image generation is the default art source for characters, creatures, props, icons and FX. Record it as art_source (api, host_image, existing, or code only on request) and name the route in your reply. A route the user names explicitly wins.
- API, when a key is configured: OpenAI (
OPENAI_API_KEY), Google Gemini (GEMINI_API_KEY), xAI (XAI_API_KEY), BytePlus Seedream (ARK_API_KEY) or fal.ai (FAL_KEY), in the environment or the user config file (route-media.md). The configured key is the owner's consent, so there is no per-call question. - Local: your own image tool (Codex
image_gen, Grok's native tool) when you have one, otherwise the user's signed-in Codex CLI, then Grok CLI. - codeart2d only when the user explicitly asks for code-drawn art, or when
route_media.pyprintsno-route(exit 3). Then say "code-drawn, no image model".
What ships with it
30 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
- agents/openai.yaml 529 B
- references/action-recipes.md 14 KB
- references/animation-planning.md 9.1 KB
- references/character-animation.md 3.9 KB
- references/engine-export.md 14 KB
- references/frames-and-clips.md 16 KB
- references/master-still.md 15 KB
- references/modes.md 6.1 KB
- references/palette-and-pixels.md 12 KB
- references/processing.md 14 KB
- references/prompt-rules.md 9.8 KB
- references/runtime-integration.md 11 KB
- references/schemas/common.schema.json 13 KB
- references/schemas/sprite.schema.json 65 KB
- references/video-handoff.md 7.8 KB
- scripts/assemble_frames.py 52 KB runs code
- scripts/build_animation_clips.py 74 KB runs code
- scripts/export_engine.py 65 KB runs code
- scripts/forge_core.py 78 KB runs code
- scripts/forge_matte.py 72 KB runs code
- scripts/forge_palette.py 70 KB runs code
- scripts/generate2dsprite.py 136 KB runs code
- scripts/make_anchor_layout.py 7.3 KB runs code
- scripts/make_layout_guide.py 6.1 KB runs code
- scripts/master_still.py 85 KB runs code
- scripts/palette_tool.py 41 KB runs code
- scripts/pixel_reduce.py 15 KB runs code
- scripts/plan_guide.py 33 KB runs code
- scripts/scale_frames.py 38 KB runs code
- scripts/sheet_qc.py 70 KB runs code
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 19d ago Changed · -270 lines · +112 tokens per session 6449ff93a8eb
- 1mo ago First seen · 377 lines · 111 tokens per session scan A 4e04edbcc96a
generate2dsprite is a skill published in the GitHub repository 0x0funky/agent-sprite-forge (4,572 stars, last pushed 20d ago), licensed MIT. It adds 223 tokens to every session and 3,604 once invoked, about $0.0009 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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