upgrade-unchained

upgrade-unchained is a skill for Claude Code, Codex from unchainedshop/unchained. It costs 44 tokens per session (465 once invoked), scanned A, original, EUPL-1.2.

A migration guide for moving an Unchained Engine project to a new major version.

In plain words
What is it for?
It is for upgrading Unchained projects and updating their `@unchainedshop` packages.
Why use it?
Major-version upgrades can require coordinated package updates and code changes that are easy to miss.

Skill for Claude CodeCodex

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 skills/unchainedshop/unchained/upgrade-unchained
Any agent
npx skills add unchainedshop/unchained --skill upgrade-unchained
Clone the repo
git clone --depth 1 https://github.com/unchainedshop/unchained

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 upgrade-unchained

README.md
[![agentmods](https://agentmods.dev/badge/skills/unchainedshop/unchained/upgrade-unchained.svg)](https://agentmods.dev/skills/unchainedshop/unchained/upgrade-unchained)
Your own site
<a href="https://agentmods.dev/skills/unchainedshop/unchained/upgrade-unchained"><img src="https://agentmods.dev/badge/skills/unchainedshop/unchained/upgrade-unchained.svg" alt="Measured on agentmods" height="20"></a>
Per session 44 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 465 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00044 $0.00465
Opus 5 $0.00022 $0.00233
Sonnet 5 $0.00009 $0.00093
Haiku 4.5 $0.00004 $0.00047

Measured 4d ago against content hash 9904b8d0e119, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

upgrade-unchained 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 4d 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.

docs/static/skills/upgrade-unchained/SKILL.md · 38 lines

The source is not reproduced here

Licensed EUPL-1.2

The repository is licensed EUPL-1.2, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

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. 4d ago First seen · 38 lines · 44 tokens per session scan A 9904b8d0e119

Subscribe to this mod's changes

upgrade-unchained is a skill published in the GitHub repository unchainedshop/unchained (201 stars, last pushed 7d ago), licensed EUPL-1.2. It adds 44 tokens to every session and 465 once invoked, about $0.0002 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 2026-08-30.

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