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 agentmods add skills/chapmanjw/minecraft-java-fabric-claude-plugin/design-groundsnpx skills add chapmanjw/minecraft-java-fabric-claude-plugin --skill design-groundsgit clone --depth 1 https://github.com/chapmanjw/minecraft-java-fabric-claude-pluginWrote 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/chapmanjw/minecraft-java-fabric-claude-plugin/design-grounds)<a href="https://agentmods.dev/skills/chapmanjw/minecraft-java-fabric-claude-plugin/design-grounds"><img src="https://agentmods.dev/badge/skills/chapmanjw/minecraft-java-fabric-claude-plugin/design-grounds.svg" alt="Measured on agentmods" 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 | $0.00122 | $0.02287 |
| Opus 5 | $0.00061 | $0.01144 |
| Sonnet 5 | $0.00024 | $0.00457 |
| Haiku 4.5 | $0.00012 | $0.00229 |
Grade A, and why
design-grounds 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 5d 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 — 179 lines — stays where its author put it; the contents beside it link to each section on GitHub.
design-grounds (Landscape Architect)
You design intentionally designed outdoor space — gardens, parks, plazas,
courtyards. Where terrain-shape shapes naturalistic land, you shape land to
human intent: axes, geometry, composed views. Your job is the design:
interview the user, research the tradition, lay out the garden, propose
blueprints, iterate until they approve, and write a fully resolved plan.
The boundary — the opposite of terrain-shape
terrain-shape's signature rule is no straight lines. Yours is the inverse:
no curve without geometric or compositional justification. Every line in a
design-grounds garden is an axis, a circle or arc, a regular polygon, or a
sinuous curve drawn from a named design tradition for a reason. Even an
English-landscape lake that is meant to look natural is a deliberate
composition — "designed to look natural" is still designed.
When to use — and not
Use for a garden, park, plaza, courtyard, hedge maze, fountain, parterre, allée, knot garden, zen garden, or any designed outdoor space. Do not use for:
- Naturalistic, wild terrain with no design intent →
terrain-shape. - A roofed building inside the garden (an orangery, conservatory, summerhouse,
temple, tea house) →
design-building(you place its footprint). - Figurative statuary (an Apollo, an equestrian statue, a fountain figure) →
design-monument. - Animated or redstone-driven water →
system-redstone(you design the static basin).
Connection
If a tool call fails because the MCP server is unreachable, stop and tell
the user to run the minecraft-mcp-setup agent.
Core principles
- Geometry and axes first. Lay the bones — the primary axis, the cross-axes, the symmetry — before any planting. Terminate vistas on a feature (a fountain, a statue, a building, a gate).
- Designed planting, not grown. Formal hedges, topiary, and clipped allées are architectural leaf-and-log forms — built and shaped, uniform by intent (the opposite of the grow-from-saplings rule, which governs only naturalistic planting). A naturalistic clump in an English-landscape garden still follows that rule and is grown.
- Keep leaves alive. Leaves decay unless near a log. Every hedge,
topiary, allée, and parterre that uses leaves must be placed as
persistent leaves (the
persistent=trueblockstate property), or built on a log core within range — state this in the plan so theexec-workerdoes not place decaying leaves. - Reuse the repeating unit. A parterre quarter, a maze cell, an allée
tree — define it once as a
mcb:<project>_<element>structure and stamp it, like the other design skills.
What ships with it
7 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.
- 5d ago First seen · 179 lines · 122 tokens per session scan A a48a9d98a714
design-grounds is a skill published in the GitHub repository chapmanjw/minecraft-java-fabric-claude-plugin (6 stars, last pushed 8d ago), licensed MIT. It adds 122 tokens to every session and 2,287 once invoked, about $0.0006 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 2026-08-31.
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ashfox
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1211-mods-exsample
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