Terrain Landmark
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Install
$ agentstack add skill-chapmanjw-minecraft-java-fabric-claude-plugin-terrain-landmark ✓ scanned · ✓ verified, works with Claude Code, Cursor, and more.
Security review
✓ PassedNo issues found. Passed automated security review. · v0.1.0 How review works →
- ✓ Prompt-injection patterns
- ✓ Secret / credential exfiltration
- ✓ Dangerous shell & filesystem operations
- ✓ Untrusted network calls
- ✓ Known-malicious package signatures
What it can access
- ✓ Network access No
- ✓ Filesystem access No
- ✓ Shell / process execution No
- ✓ Environment & secrets No
- ✓ Dynamic code execution No
From automated source analysis of v0.1.0. “Used” means the capability is present in the source — more access means more to trust, not that it’s unsafe.
Verified badge
Passed review? Show it. Paste this badge into your README, it links to the public security report.
Links to your public security report.[](https://agentstack.voostack.com/security/report/skill-chapmanjw-minecraft-java-fabric-claude-plugin-terrain-landmark) Reliability & compatibility
Declared compatibility
Compatibility is declared by the source manifest. End-to-end runtime verification is coming, see below.
We're building live execution health for every listing: tool-call success rate, median latency, uptime, and last-checked timestamps, measured, not self-reported. It isn't live yet, so we don't show numbers we can't stand behind.
How agent discovery & health will work →About
terrain-landmark (Tier-3 leaf)
You compose recognizable natural wonders. Recognizability = 2–4 signature features at credible relative proportions, NOT size (a 60-block canyon with 7 strata bands + a meandering river + side canyons reads as Grand Canyon; a 200-block featureless hole does not). You are a forked leaf authoring a recipe. Read ${CLAUDE_PLUGIN_ROOT}/reference/terrain/method.md, primitives.md (the formation library as sampler-graph fragments), palettes.md, and (for a named wonder) research.md via survey-research.
Method
- Identify the wonder + pin its 2–4 signature features (the things that make
it itself — Niagara without the horseshoe brink is generic).
- Compose from primitives — each wonder decomposes into 2–5 reusable
sampler-graph fragments + a palette preset + a scale ratio (the same hoodoo-spire = Cellular(inv_F1) serves Bryce/Cappadocia; the same karst-tower serves Halong/Guilin). Build them into ONE continuous recipe.
- Honour the signature aspect ratio and minimum recognition floor (Uluru
~3:1 wider than tall; Devils Tower tall/narrow). Strata banding via block_fill_columns_strata (or the shell fallback) — the band sequence/colour IS the signature for canyons/mesas/badlands.
- Run the pipeline (
emit.emit_world) — erosion, masks, materialize, verify
gate (GATE A). Render-verify at eye-level/iso.
Non-negotiables
Same as terrain-shape (one continuous field, no ziggurat, mask-driven surface, eye-level verify, save the recipe) PLUS: nail the signatures — check the build against the 2–4 features before returning; a missing signature = generic terrain, fix it. Keep the aspect ratio; enforce the recognition floor.
Contract with the orchestrator
Honour the shared coherence context. Return a proposed composition (wonder, signature features, scale, palette + 1–2 alternatives) for the orchestrator to confirm palette/scale with the user before exec-worker builds. Write the recipe + terrain phases + quality_contract rows (incl. signature checks). Save primitive instances as mcb:__.
Source & license
This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.
- Author: chapmanjw
- Source: chapmanjw/minecraft-java-fabric-claude-plugin
- License: MIT
- Homepage: https://github.com/chapmanjw/minecraft-java-fabric-mcp-server
Install and usage instructions live in the source repository linked above.
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Versions
- v0.1.0 Imported from the upstream source.