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blockbench-mcp-plugin: Skill for Claude Code

.agents/skills/skill-creator/SKILL.md

skill-creator is a skill for Claude Code, Codex from jasonjgardner/blockbench-mcp-plugin. It costs 46 tokens per session (3,701 once invoked), scanned A, original, GPL-3.0.

A guide for creating skills that extend a coding agent with specialized knowledge, workflows, or tool connections. A skill is a set of instructions the agent follows for a particular kind of work.

In plain words
What is it for?
Use it when creating a new skill or updating an existing one, including its instructions, workflows, and tool integrations.
Why use it?
It helps turn repeatable expertise or procedures into clear instructions an agent can apply consistently. This reduces the need to explain the same domain process in every request.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing. Also seen: installed under .agents/ (shared by several agents).

This is jasonjgardner/blockbench-mcp-plugin's own configuration. It tells Claude Code and Codex how to work on blockbench-mcp-plugin 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 blockbench-mcp-plugin configures →

not rated 606repo +13 12d ago A scan 46 tokens GPL-3.0
View source ↗ jasonjgardner/blockbench-mcp-plugin jasonjgardner.github.io
Reuse

Borrowing it

Nothing to install: this file belongs to jasonjgardner/blockbench-mcp-plugin. 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/jasonjgardner/blockbench-mcp-plugin/main/.agents/skills/skill-creator/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/jasonjgardner/blockbench-mcp-plugin

Made for: Claude Code, Codex.

Wrote 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.

agentmods badge for skill-creator

README.md
[![agentmods](https://agentmods.dev/badge/skills/jasonjgardner/blockbench-mcp-plugin/skill-creator/github.svg)](https://agentmods.dev/skills/jasonjgardner/blockbench-mcp-plugin/skill-creator)
Your own site
<a href="https://agentmods.dev/skills/jasonjgardner/blockbench-mcp-plugin/skill-creator"><img src="https://agentmods.dev/badge/skills/jasonjgardner/blockbench-mcp-plugin/skill-creator/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.

agentmods 80×15 button for skill-creator

Your own site · 80×15
<a href="https://agentmods.dev/skills/jasonjgardner/blockbench-mcp-plugin/skill-creator"><img src="https://agentmods.dev/badge/skills/jasonjgardner/blockbench-mcp-plugin/skill-creator.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 46 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,701 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 unknown 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 $0.00046 $0.03701
Opus 5.5 $0.00018 $0.01480
Sonnet 5.5 $0.00009 $0.00740
Haiku 4.5 $0.00005 $0.00370

Measured 2mo ago against content hash 5f480a9bd94a, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

skill-creator 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 2mo ago.

The scan reads SKILL.md. This mod also ships 3 executable files (scripts/init_skill.py, scripts/package_skill.py, scripts/quick_validate.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

.agents/skills/skill-creator/SKILL.md · 357 lines

The source is not reproduced here

Licensed GPL-3.0

The repository is licensed GPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

Files

What ships with it

6 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.

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. 2mo ago First seen · 357 lines · 46 tokens per session scan A 5f480a9bd94a

Subscribe to this mod's changes

skill-creator is a skill published in the GitHub repository jasonjgardner/blockbench-mcp-plugin (606 stars, last pushed 12d ago), licensed GPL-3.0. It adds 46 tokens to every session and 3,701 once invoked, about $0.0002 per session on Opus 5.5. 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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Related

skill-creator compared with skills from other repositories

skill-creator next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
skill-creatorjasonjgardner/blockbench-mcp-pluginSkill60612d agoGPL-3.0A46Claude Code, Codex
blockbench-pluginsjasonjgardner/blockbench-mcp-projectSkill271mo agoApache-2.0A87Claude Code
blockbench-flipbook-texturesjasonjgardner/blockbench-mcp-projectSkill271mo agoApache-2.0A83Claude Code, Codex
blockbench-vanilla-texturesjasonjgardner/blockbench-mcp-projectSkill271mo agoApache-2.0A156Claude Code
blockbench-particlesjasonjgardner/blockbench-mcp-projectSkill271mo agoApache-2.0A139Claude Code
blockbench-substancejasonjgardner/blockbench-mcp-projectSkill271mo agoApache-2.0A220Claude Code
blockbench-usejasonjgardner/blockbench-mcp-projectSkill271mo agoApache-2.0A52Claude Code