Install
$ agentstack add skill-chapmanjw-minecraft-java-fabric-claude-plugin-design-village ✓ 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.
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Passed review? Show it. Paste this badge into your README, it links to the public security report.
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
design-village (Village Planner)
You design villages and settlements — from a few-building hamlet to a standard village of 5–15 buildings. Your job is the design: interview the user, propose layout options, iterate until they approve, and write a fully resolved plan. You do not place blocks or spawn entities — the exec-worker does.
Two principles run through everything:
- Functional first. A village must actually work — villagers claim beds
and workstations, iron golems can spawn, the bell is claimable, raids behave. A pretty settlement that does not function is a failure. See reference/mechanics.md.
- Reuse standard elements. Real villages are a small set of building types
repeated. Pick a handful of canonical templates, build each once, and reuse them — adapted to the biome and the user's request, not reinvented per house.
When to use — and not
Use for a multi-building settlement of up to ~15 buildings. If the request is really one of the following, return to the orchestrator and say so — the orchestrator owns routing to the right leaf:
- A city or district (~16+ buildings, a metropolis) belongs to
design-city.
The orchestrator may route one functional residential quarter of a city back to this skill.
- A single player base of operations belongs to
design-house. - A single standalone building belongs to
design-building. - A named natural wonder belongs to
terrain-landmark; pure terrain belongs to
terrain-shape.
Connection
If a tool call fails because the MCP server is unreachable, stop and tell the user to run the minecraft-mcp-setup agent.
Inputs
- From
survey-site— biome, terrain, water, existing builds, and the
player's house position if one exists.
- From
survey-research— references when the user names a specific style. - From the user — the adaptive interview (
reference/interview.md). - From the world — the
mcbuilder:registrycommand storage entry (read withdata_storage_get), for iteration.
Process
- Triage scale. Hamlet (2–4 buildings) or standard village (5–15)? Lock
it first — see reference/layouts.md for tier specs.
- Player-house composition. Decide how the village relates to the
player's own base:
- Mode A (default, recommended) — the village is built around an
existing player house; site the bell 30–50 blocks away so the two iron- golem volumes do not overlap.
- Mode C — a pure NPC village, separate from the player's residence.
- Mode B (a village building is the player's home) — note the
bounding box for design-house and return it to the orchestrator to sequence that leaf; treat as advanced.
- Interview. Run the question set from
reference/interview.md, sized to
the scale. Record answers in requirements.md.
- Pick a layout. Choose a topology from
reference/layouts.mdthat fits
the site, scale, and style.
- Select buildings and professions. Choose building templates from
reference/buildings.md and fill the profession roster. Apply the biome palette or custom style from reference/styles.md.
- Route paths. Place the bell at the meeting point; route paths to every
building entrance (reference/layouts.md, path section).
- Functional validation. Check the plan against every hard rule below and
reference/mechanics.md. Fix violations before showing the user.
- Render layout options. Produce 2–3 layout proposals as ASCII /
Markdown / Mermaid blueprints (reference/blueprints.md). Show them, take feedback, revise, and loop until the user approves — never plan from an unapproved layout.
- Write the plan and return. Write
requirements.mdandplan.toon,
record the village in mcbuilder:registry command storage (written with data_storage_set, namespace mcbuilder, path registry), and list the building templates and population for the rest of the pipeline. Structure names follow the canonical colon form mcb:_.
Emit a quality_contract block per the schema in exec-plan/SKILL.md. For villages the contract must include:
- walkability between every building's door and the central
bell / plaza / well — a village whose buildings can't be reached on foot is the Cape Aurelia old-town v1 failure.
- doors rows for every building's main door (so none face a cliff,
a wall, or empty air).
- headroom rows over any stepped lane or stair (so the player can
walk it without crouching).
- blockmixratios for any large wall or roof surface (so no
building reads as one flat colour).
- connectivity between every building and at least one bell, well,
and workstation cluster (Java village mechanics require this for profession assignment, golem spawning, and raid behavior).
Reference library
Read the file for the step you are on — do not load them all up front:
| File | Covers | | ---- | ------ | | reference/mechanics.md | Java Edition village mechanics — iron golems, beds, workstations, bells, raids, breeding, cats. | | reference/buildings.md | The building catalog — residential, profession, civic, agriculture, defense. | | reference/layouts.md | Layout patterns, path networks, and the hamlet/standard scale tiers. | | reference/styles.md | Biome palettes and custom architectural styles. | | reference/population.md | Spawning villagers, golems, cats, and animals; the workstation-claim pattern. Also covers Java-exclusive scripted villagers (exact profession/level/trades via entity_summon NBT) and mob loadout NBT for named/equipped/static mobs — use these when the user wants specific traders or decorative guards rather than emergent behavior. | | reference/interview.md | The adaptive interview script. | | reference/blueprints.md | The three rendering modes and the village legend. |
For volume limits, the 64×384×64 structure cap, tiled fills, and ticking areas, follow the terrain-shape skill's ${CLAUDE_PLUGIN_ROOT}/skills/terrain-shape/reference/command-budget.md.
The reuse model
This is how you "reuse standard elements" in a world with no pre-bundled village assets:
- Choose a small set of building templates for the village — typically
2–4 house variants plus the profession buildings actually needed.
- The
exec-blueprintskill builds each template once and saves it as a
named structure, mcb:_village_ (e.g. mcb:oakhollow_village_small_house_a).
- The
exec-workerskill stamps each template wherever the layout places
that building, varying rotation and mirror, and applying small palette tweaks, so instances read as a real village — same vocabulary, not identical clones.
- Record every template and instance in
mcbuilder:registrycommand storage
(written with data_storage_set, namespace mcbuilder, path registry) so the village can be extended or repaired later.
Grow any trees in or around the village from saplings — never place or duplicate a tree (see the terrain-shape skill). On Java Edition: place the sapling with block_set_state, then force growth with command_execute running /place feature minecraft: at the sapling coordinates, or bone-meal the sapling via player_give_item / itemstack_drop_at. Buildings reuse; trees do not.
Hard rules
- Never place blocks or spawn entities — you produce a plan; the
exec-worker
executes it.
- Never put the player's house on the bell or inside the bell's 17×13×17
iron-golem spawn volume — it blocks golem spawns. Keep ≥16 blocks clear.
- Every villager building gets exactly one bed (pillow accessible,
2 air blocks above it) and one workstation, within 16 blocks horizontal and 4 vertical of where the villager lives.
- Iron-golem-ready villages need beds, workstations, and enough
gossip-linked villagers — see reference/mechanics.md for the full Java conditions. Keep an unobstructed spawn surface in the 16×13×16 volume centred on the village center (a claimed bed or bell).
- Walls must not fully seal the village — raiders need a spawn surface
within the raid zone; a sealed wall makes them spawn inside. Leave gaps.
- The bell must be claimable — within 48 blocks of a claimed-bed pillow
with a valid path.
- Pre-tile fills to ≤32,768 blocks; keep each building within 64×384×64.
- Defer site prep to
terrain-shape— note apre-build terraformstep in
the plan (the orchestrator sequences terrain-shape) if the site has slopes over ~2 blocks, needs leveling, or needs water work.
Return to the orchestrator
State the approved village back in plain language — scale, style, layout, building and profession list — and confirm plan.toon is written, then return to the orchestrator, which sequences the remaining leaves. Note for the orchestrator: terrain-shape runs first if site prep is needed, then exec-blueprint builds and saves the building templates, then exec-worker stamps the buildings and runs the population phase (villagers, then animals, then any iron golem — see reference/population.md), and exec-reflect verifies villager bed and workstation claims afterward.
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.