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 SummerEngine/summer-engine-agent --skill concept-artgit clone --depth 1 https://github.com/SummerEngine/summer-engine-agentWrote 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/summerengine/summer-engine-agent/concept-art)<a href="https://agentmods.dev/skills/summerengine/summer-engine-agent/concept-art"><img src="https://agentmods.dev/badge/skills/summerengine/summer-engine-agent/concept-art/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/summerengine/summer-engine-agent/concept-art"><img src="https://agentmods.dev/badge/skills/summerengine/summer-engine-agent/concept-art.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 | $0.00089 | $0.02406 |
| Opus 5 | $0.00044 | $0.01203 |
| Sonnet 5 | $0.00018 | $0.00481 |
| Haiku 4.5 | $0.00009 | $0.00241 |
Grade A, and why
concept-art 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 10d 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:
- concept-art — 86% identical, 61 lines differ
How it starts
The opening of the file, as written. The whole thing — 154 lines — stays where its author put it; the contents beside it link to each section on GitHub.
concept-art — Batch-of-Variants for Art Direction
This skill produces 3-4 rough concept images of the same subject under different stylistic interpretations. The goal is not the final asset — the goal is to give the user something visual to react to so they can lock a direction. Variants are deliberately divergent (different palette, mood, framing, era) so the user has real choices, not four near-identical takes.
If the user wants ONE polished image (a dialogue portrait, a hero card), this is the wrong skill — route to summer:2d-assets/character-portrait. The summer:asset-pipeline/asset-strategy meta-router uses the disambiguation phrase "Quick check — exploring the look (3-4 variants for art direction) or generating a final character portrait for dialogue UI?" to send users to one of the two. If you arrived here without that question being asked, ask it before generating.
When to use
- "I'm not sure what this character should look like — give me some options."
- "Show me 3-4 directions for the witch."
- "I want a mood board for the swamp level."
- Early-project art direction, before the GameSoul.md visual style is locked.
- The user describes a vibe ("dark fantasy", "Ghibli-esque", "Mobius") and wants to see it rendered.
When NOT to use
- The user wants a single locked portrait for a dialogue UI →
summer:2d-assets/character-portrait. - The user wants pixel art specifically →
summer:2d-assets/pixel-art. - The user wants a UI icon or HUD element →
summer:2d-assets/ui-graphics. - The user wants a tileable wall/floor texture →
summer:2d-assets/tileable-texture. - The user wants an image-to-3D reference →
summer:asset-pipeline/asset-strategy(the 3D pipeline has its own prompt suffix).
Steps
1. Confirm exploration vs final
Before generating, ask once:
Quick check — exploring the look (3-4 variants for art direction) or generating a final character portrait for dialogue UI?
If "final" → hand off to summer:2d-assets/character-portrait. If "explore" → continue.
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.
- 10d ago First seen · 154 lines · 89 tokens per session scan A 343b270c7ed3
concept-art is a skill published in the GitHub repository SummerEngine/summer-engine-agent (59 stars, last pushed today), licensed MIT. It adds 89 tokens to every session and 2,406 once invoked, about $0.0004 per session on Opus 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.
Other skills, from other repositories
artist-self-evolve
Distill stable art-generation patterns from a completed project, so future projects produce comparable assets without re-discovering the prompts. Lead-dispatched only — orchestrator invokes this skill from its self-evolve flow with a game-slug message; do not self-trigger.
vibegame-edit
Iterate broadly on an existing game, on top of vibegame-build. Use when the user asks to change an existing game's art style, genre, or core rules. Not for local tuning such as numbers or game feel. Orchestrator only.
hearth-art
Give a Hearth game real art and sound — importing and slicing spritesheets, animations, procedural sprites and sounds, autonomous CC0 asset sourcing (Kenney, itch.io, OpenGameArt, Freesound, Google Fonts) with licensing rules, and pixel-art discipline (never stretch; read the art before using it). Use when the game…
asset-gen
Generate visual assets from text prompts: PNG images (Gemini / xAI Grok), GLB 3D models (Tripo3D), rigged biped characters, retargeted animations, and frame-by-frame animated sprites, plus background removal. Use whenever a game needs generated art.
screenshot-isolated
Render a target GameObject from a chosen camera angle with optional layer-based isolation, configurable background (solid/skybox/transparent), multi-light setup via JSON, and Composite (2x2 Front/Right/Back/Top) mode. Returns a PNG image. When isolated=true, inactive children may briefly fire OnEnable — see the body…
screenshot-camera
Capture a screenshot from a Unity Camera and return it as a PNG image for direct LLM inspection. Falls back to Camera.main (then any active camera) when cameraRef is null. Width and height are capped to keep response size manageable.