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 amenti-labs/vibecraft --skill choosing-materialsgit clone --depth 1 https://github.com/amenti-labs/vibecraftWrote 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/amenti-labs/vibecraft/choosing-materials)<a href="https://agentmods.dev/skills/amenti-labs/vibecraft/choosing-materials"><img src="https://agentmods.dev/badge/skills/amenti-labs/vibecraft/choosing-materials/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/amenti-labs/vibecraft/choosing-materials"><img src="https://agentmods.dev/badge/skills/amenti-labs/vibecraft/choosing-materials.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 | $0.00046 | $0.00872 |
| Opus 5 | $0.00023 | $0.00436 |
| Sonnet 5 | $0.00009 | $0.00174 |
| Haiku 4.5 | $0.00005 | $0.00087 |
Grade A, and why
choosing-materials 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.
How it starts
The opening of the file, as written. The whole thing — 67 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Choosing Materials
MCP Tools
search_minecraft_item(query)- Search 1,375 blocksbuildscript_palettes- 10 curated material palettes
60-30-10 Rule
| Tier | % | Use |
|---|---|---|
| Primary | 60% | Walls, main surfaces |
| Secondary | 30% | Roof, accents, trim |
| Detail | 10% | Decorations, contrast |
Curated Palettes
Medieval Oak: oak_planks, cobblestone, stripped_oak_log, dark_oak_stairs, oak_fence/lantern Stone Castle: stone_bricks, cobblestone, polished_andesite, deepslate_tile_stairs, iron_bars/chains Modern: white_concrete, light_gray_concrete, black_concrete, glass_pane, iron_bars/sea_lantern Japanese: spruce_planks, white_wool, dark_oak_log, deepslate_tile_stairs, bamboo/lantern Gothic: deepslate_bricks, stone_bricks, polished_blackstone, black_stained_glass, chains/soul_lantern Desert: smooth_sandstone, cut_sandstone, orange_terracotta, sandstone_stairs Fantasy: prismarine_bricks, purpur_block, amethyst_block, end_rod/sea_lantern, crying_obsidian Nether: blackstone, nether_bricks, crimson_planks, shroomlight/soul_lantern, chains/gilded_blackstone Rustic: spruce_planks, cobblestone, stripped_spruce_log, spruce_stairs, barrel/lantern Cherry Blossom: cherry_planks, pink_terracotta, stripped_cherry_log, cherry_stairs, cherry_leaves/lantern
Color Relationships
Complementary (high contrast): orange+blue (terracotta+prismarine), red+cyan (red_nether_brick+warped_planks) Analogous (harmonious): oak→spruce→dark_oak, prismarine→diamond→lapis, stone→andesite→cobblestone Monochromatic: white→light_gray→gray→black, birch→oak→spruce→dark_oak
Material Properties
Wood tones: Oak (warm yellow), Spruce (dark brown), Birch (light cream), Dark Oak (deep brown), Cherry (pink) Stone tones: Stone bricks (gray), Cobblestone (dark gray), Andesite (light gray), Deepslate (dark blue-gray), Blackstone (black)
Texture Variety
Large surfaces need patterns:
# Instead of: //set stone_bricks
# Use: //set 80%stone_bricks,15%cracked_stone_bricks,5%mossy_stone_bricks
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 · 67 lines · 46 tokens per session scan A 5b23dfc3b5e3
choosing-materials is a skill published in the GitHub repository amenti-labs/vibecraft (98 stars, last pushed 7mo ago), licensed MIT. It adds 46 tokens to every session and 872 once invoked, about $0.0002 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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