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.
git clone --depth 1 https://github.com/sponticelli/gamedev-claude-pluginsWrote 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/commands/sponticelli/gamedev-claude-plugins/style-brief)<a href="https://agentmods.dev/commands/sponticelli/gamedev-claude-plugins/style-brief"><img src="https://agentmods.dev/badge/commands/sponticelli/gamedev-claude-plugins/style-brief/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/commands/sponticelli/gamedev-claude-plugins/style-brief"><img src="https://agentmods.dev/badge/commands/sponticelli/gamedev-claude-plugins/style-brief.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00019 | $0.00351 |
| Opus 5 | $0.00010 | $0.00176 |
| Sonnet 5 | $0.00004 | $0.00070 |
| Haiku 4.5 | $0.00002 | $0.00035 |
Grade A, and why
style-brief 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 9d 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.
What it actually says
Art Style Brief Generator
Create a rapid art style brief from a game concept.
Output Format
# Art Style Brief: [Game Title]
## Visual Identity in One Sentence
[Capture the entire visual approach in one sentence]
## Style Keywords
[5 adjectives that describe the visual style]
## Color Direction
### Primary Palette
- **Dominant:** [Color] - [What it represents]
- **Accent:** [Color] - [When used]
- **Neutral:** [Color] - [Base tones]
### Mood Mapping
| Mood | Colors |
|------|--------|
| [Mood 1] | [Colors] |
| [Mood 2] | [Colors] |
## Shape Language
- **Heroes/Allies:** [Shapes] - [Why]
- **Threats/Enemies:** [Shapes] - [Why]
- **Environment:** [Shapes] - [Why]
## Reference Touchstones
| Reference | What to Take |
|-----------|-------------|
| [Game/Film/Art] | [Specific element] |
| [Game/Film/Art] | [Specific element] |
| [Game/Film/Art] | [Specific element] |
## What We're NOT
[Styles or approaches to explicitly avoid]
## Production Considerations
- **Complexity:** [Low/Medium/High]
- **Team Size:** [Solo/Small/Large]
- **Key Challenge:** [Main production concern]
## First Art Test
[What single image would prove/disprove this style works]
Generate based on user's game concept.
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.
- 9d ago First seen · 58 lines · 19 tokens per session scan A c09b55b74a6c
style-brief is a command published in the GitHub repository sponticelli/gamedev-claude-plugins (15 stars, last pushed 8mo ago), licensed MIT. It adds 19 tokens to every session and 351 once invoked, about $0.0001 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.
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