Borrowing it
Nothing to install: this file belongs to Jahrome907/minecraft-agent-skills. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/Jahrome907/minecraft-agent-skills/main/.agents/skills/minecraft-world-generation/SKILL.mdgit clone --depth 1 https://github.com/Jahrome907/minecraft-agent-skillsWrote 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/jahrome907/minecraft-agent-skills/minecraft-world-generation)<a href="https://agentmods.dev/skills/jahrome907/minecraft-agent-skills/minecraft-world-generation"><img src="https://agentmods.dev/badge/skills/jahrome907/minecraft-agent-skills/minecraft-world-generation/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/jahrome907/minecraft-agent-skills/minecraft-world-generation"><img src="https://agentmods.dev/badge/skills/jahrome907/minecraft-agent-skills/minecraft-world-generation.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 | $0.00057 | $0.02547 |
| Opus 5 | $0.00028 | $0.01273 |
| Sonnet 5 | $0.00011 | $0.00509 |
| Haiku 4.5 | $0.00006 | $0.00255 |
Grade A, and why
minecraft-world-generation 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 4d 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 — 250 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Minecraft World Generation
Use this skill for biome, dimension, feature, or structure data and their
registration. Use minecraft-datapack for non-worldgen data and
minecraft-modding for non-worldgen gameplay code.
Routing Boundaries
Use when: the task changes worldgen data, registration, or injection.Do not use when: the task is non-worldgen datapack work (minecraft-datapack).Do not use when: the task is non-worldgen mod systems (minecraft-modding).
Choose the delivery path
| Approach | Best When | Platform |
|---|---|---|
| Datapack JSON | Change data supplied by a pack | Vanilla, any server |
| Mod + Datagen | Registering new biomes/dimensions, code-driven | NeoForge / Fabric |
| Biome Modifier (NeoForge) | Adding features/spawns to existing biomes | NeoForge |
| BiomeModification API (Fabric) | Adding features/spawns to existing biomes | Fabric |
Worldgen registries are datapack registries: their files load at world load and their registry path determines the data path. Read the NeoForge registry guide before choosing a mod-specific registry path.
Version boundary
Treat Minecraft 26.x as the current lane for new work. Use Java 25 and start each JSON schema from the exact target's vanilla data or generated output. Do not copy a 1.21 shape into a 26.x pack merely because it parses as JSON.
Preserve an established 1.21.x project on Java 21 and its matching schema unless the task explicitly includes an upgrade. Do not mix compatibility lanes.
The 26.1 migration primer
removes minecraft:random_patch and minecraft:no_bonemeal_flower. It replaces
the random-patch pattern with a separate minecraft:simple_block configured
feature and placements for count, random offset, and block-predicate filtering.
Inspect the relevant primer section before migrating code or data.
Read legacy 1.21 JSON patterns only when the project targets that compatibility lane. Those examples are not release artifacts for 26.x.
What ships with it
3 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.
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.
- 4d ago Changed · -342 lines · +1 tokens per session ef70119fe79c
- 12d ago First seen · 592 lines · 56 tokens per session scan A 0009066bb173
minecraft-world-generation is a skill published in the GitHub repository Jahrome907/minecraft-agent-skills (136 stars, last pushed 5d ago), licensed MIT. It adds 57 tokens to every session and 2,547 once invoked, about $0.0003 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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