upgrade

upgrade is a command for coding agents from Teddy563/mcwrench. It costs 24 tokens per session (250 once invoked), scanned A, original, MIT.

A read-only command for planning a Minecraft server upgrade to version 26.1 and Java 25.

In plain words
What is it for?
Use it to create an ordered runbook covering backups, Java and plugin updates, testing on a copy, world upgrades, and a final audit.
Why use it?
It identifies compatibility risks, checks installed plugin builds, and lays out testing and backup steps before an upgrade.

Command

Part of the mcwrench plugin — 13 skills, 19 commands, 2 agents shipped together

Install

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.

agentmods
npx agentmods add commands/teddy563/mcwrench/upgrade
Clone the repo
git clone --depth 1 https://github.com/Teddy563/mcwrench

Or install mcwrench, the plugin that ships this one along with the rest of its 13 skills, 19 commands, 2 agents.

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 upgrade

README.md
[![agentmods](https://agentmods.dev/badge/commands/teddy563/mcwrench/upgrade.svg)](https://agentmods.dev/commands/teddy563/mcwrench/upgrade)
Your own site
<a href="https://agentmods.dev/commands/teddy563/mcwrench/upgrade"><img src="https://agentmods.dev/badge/commands/teddy563/mcwrench/upgrade.svg" alt="Measured on agentmods" height="20"></a>
Per session 24 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 250 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00024 $0.00250
Opus 5 $0.00012 $0.00125
Sonnet 5 $0.00005 $0.00050
Haiku 4.5 $0.00002 $0.00025

Measured 3d ago against content hash 5321a7c97fd4, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

upgrade 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 3d 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.

commands/upgrade.md · 19 lines

What it actually says

Use the server-doctor skill to plan an upgrade to $ARGUMENTS from the server-profile, following references/upgrade-checklist.md.

Check: Java 25 requirement for Paper 26.1+ (flag UnsupportedClassVersionError risk); the 26.1 unobfuscated-jar break — label each installed plugin has-a-build / none / unknown via node "${CLAUDE_PLUGIN_ROOT}/skills/server-doctor/scripts/check-plugin-versions.mjs" <root> + learn-plugin-docs; do not combine a version bump with a software/server-type switch; back up and trim before a world upgrade.

Emit the ordered runbook: back up → bump Java → update plugins (verify builds) → test on a copy → upgrade the world → re-audit. Read-only; confirm before any irreversible step and tell the user to back up first.

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. 3d ago First seen · 19 lines · 24 tokens per session scan A 5321a7c97fd4

Subscribe to this mod's changes

upgrade is a command published in the GitHub repository Teddy563/mcwrench (1 stars, last pushed 10d ago), licensed MIT. It adds 24 tokens to every session and 250 once invoked, about $0.0001 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.