rpgmaker-mz-mcp: Skill for Claude Code

.claude/skills/rpgmaker-authoring/SKILL.md

rpgmaker-authoring is a skill for Claude Code from Redseb/rpgmaker-mz-mcp. It costs 168 tokens per session (4,271 once invoked), scanned A, original, MIT.

Guidance for creating or editing a playable RPG Maker MZ game, including maps, characters, events, shops, battles, and transfers between areas.

In plain words
What is it for?
Use it while building an RPG Maker MZ project to plan maps, place characters and events, connect areas, and configure shops, chests, battles, and a custom cast.
Why use it?
It helps catch problems that structural checks miss, such as invisible characters, missing graphics, broken entrances, and game elements that do not work during play.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

This is Redseb/rpgmaker-mz-mcp's own configuration. It tells Claude Code how to work on rpgmaker-mz-mcp itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything rpgmaker-mz-mcp configures →

Part of the rpgmaker-mz plugin — 2 skills, 1 MCP server shipped together

Reuse

Borrowing it

Nothing to install: this file belongs to Redseb/rpgmaker-mz-mcp. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/Redseb/rpgmaker-mz-mcp/master/.claude/skills/rpgmaker-authoring/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/Redseb/rpgmaker-mz-mcp

Made for: Claude Code.

Or install rpgmaker-mz, the plugin that ships this one along with the rest of its 2 skills, 1 MCP server.

Wrote this? Show the measurements

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README.md
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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.

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Your own site · 80×15
<a href="https://agentmods.dev/skills/redseb/rpgmaker-mz-mcp/rpgmaker-authoring"><img src="https://agentmods.dev/badge/skills/redseb/rpgmaker-mz-mcp/rpgmaker-authoring.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 168 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,271 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00168 $0.04271
Opus 5 $0.00084 $0.02135
Sonnet 5 $0.00034 $0.00854
Haiku 4.5 $0.00017 $0.00427

Measured 10d ago against content hash 157cf1a5e6d5, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

rpgmaker-authoring 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.

.claude/skills/rpgmaker-authoring/SKILL.md · 245 lines

How it starts

The opening of the file, as written. The whole thing — 245 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Authoring a playable RPG Maker MZ game

The mcp__rpgmaker-mz__* tools let you build a game, but a build that succeeds and passes validate_project/validate_references/validate_event can still be a badly built game — invisible NPCs, terrain with black gaps, entrances you walk into, battlers that fail to load. This skill is the authoring judgment the tools don't enforce, distilled from real playtests. Read it before/while building a game.

Rule 0 — validators prove structure, not that it looks/plays right

validate_* check command shape and id integrity. They will not catch: a transparent tile with nothing beneath it, an NPC with no sprite, a battlerName that doesn't exist, a transfer placed on the wrong tile, a class that always misses. The only way to know the game is good is to open it in the RPG Maker editor and play it. Treat "validators clean" as necessary, never sufficient.

The flip side: the event-writing tools refuse a write whose result is structurally broken (wrong parameter count for a command code, a list missing its { code: 0 } terminator, a choice/conditional/loop block left unclosed or missing a When branch, an action-button event stranded on an impassable tile) — the tool errors and nothing is saved. That error is a real bug in what you were about to write: fix the input. force: true writes it anyway and exists for the rare case where the validator is wrong (an exotic plugin, a deliberate experiment) — reaching for it to make an error go away just puts the broken data on disk, which is what the refusal saved you from. Advisory findings (unknown command code, unknown asset name, long text line) still come back as warnings on a successful write — heed those too.

When you finish a chunk, say what still needs an in-editor look.

Tile layering — transparent overlays need a base (the #1 map mistake)

Each map cell has 6 stacked z-layers in the flat data array (index = (layer*height + y)*width + x):

Read the full file on GitHub · 245 lines

Changes

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.

  1. 10d ago First seen · 245 lines · 0 tokens per session scan A 157cf1a5e6d5

Subscribe to this mod's changes

rpgmaker-authoring is a skill published in the GitHub repository Redseb/rpgmaker-mz-mcp (5 stars, last pushed 1mo ago), licensed MIT. It adds 168 tokens to every session and 4,271 once invoked, about $0.0008 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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