typo3-extension-upgrade SKILL.md skillA

typo3-extension-upgrade from netresearch/typo3-extension-upgrade-skill is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add netresearch/typo3-extension-upgrade-skill/typo3-extension-upgrade@git:20261001.ac51d76

Pins git:20261001.ac51d76 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
netresearch/typo3-extension-upgrade-skill
Path
skills/typo3-extension-upgrade/SKILL.md
Versions recorded
22
Latest version
git:20261001.ac51d76, committed Oct 1, 2026
First version recorded
Sep 3, 2026
Size
14,439 bytes
Repository stars
12
License
a license file GitHub does not identify

Use when an extension has to work with a newer or the current TYPO3 LTS, when a version bump breaks compatibility or leaves deprecated APIs behind, when upgrading v11->v12, v12->v13 or v13->v14 (v14.3 LTS is the current target), when one codebase must stay compatible with two versions, when running Extension Scanner, Rector, Fractor or PHPStan against a target version, or when a specific v14 breaker bites - Fluid 5 strict ViewHelpers, HashService removal, the ext_tables.php split.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# TYPO3 Extension Upgrade Skill

Framework for upgrading TYPO3 extensions to newer LTS versions.
Extension code only, not project/core upgrades.

**Done is `exit=0` from the step 10 command, run last on every line the
constraint names that installs — read from the run, not assumed.** Not green on
one line with another left red. Not green because failing tests
were skipped or deleted. Not a commit with `--no-verify`. Anything short of that is
reported as not done, with the lines that show why.

**A commit hook that fails is a check the repository requires, not an obstacle.**
Read which command it ran, run that command yourself, fix what it reports, and
commit again: code style is usually fixed by the repository's own fixer
(`php-cs-fixer fix` with its config), PHPStan findings are fixed in the code.
Measured: three agents with both TYPO3 lines green bypassed the style or PHPStan
hook with `--no-verify`, and a fourth bypassed its own failing unit tests.

## Upgrade Toolkit

| Tool | Purpose | Files |
|------|---------|-------|
| Extension Scanner | Diagnose deprecated APIs | TYPO3 Backend |
| Rector | Automated PHP migrations | `.php` |
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add netresearch/typo3-extension-upgrade-skill/typo3-extension-upgrade@sha256:f46e8c5966d6a8b0

The line at the top of this page pins the label git:20261001.ac51d76, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_6gf2spdxbmey3wah.svg)](https://markdownregistry.com/a/art_6gf2spdxbmey3wah)

2 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 22 versions of this file, between Sep 3, 2026 and Oct 1, 2026, about one every day.

versioncommittedcommitsizeaudit
git:20261001.ac51d76 latest2026-10-01 ac51d76 14,439 BA view · diff
git:20260930.bb552fb2026-09-30 bb552fb 14,397 BA view · diff
git:20260927.8dc68672026-09-27 8dc6867 14,310 BA view · diff
git:20260918.0a82fd82026-09-18 0a82fd8 13,882 BA view · diff
git:20260918.f0bc6752026-09-18 f0bc675 13,825 BA view · diff
git:20260918.ee05cab2026-09-18 ee05cab 13,740 BA view · diff
git:20260918.4cf26f32026-09-18 4cf26f3 13,594 BA view · diff
git:20260918.201f2ca2026-09-18 201f2ca 13,578 BA view · diff
git:20260914.fe747f62026-09-14 fe747f6 12,202 BA view · diff
git:20260914.f32b2892026-09-14 f32b289 12,457 BA view · diff
git:20260914.9d569842026-09-14 9d56984 11,989 BA view · diff
git:20260914.f2de32f2026-09-14 f2de32f 11,830 BA view · diff
git:20260910.c11f6022026-09-10 c11f602 11,072 BA view · diff
git:20260910.dd103a12026-09-10 dd103a1 10,979 BA view · diff
git:20260910.5d57c772026-09-10 5d57c77 10,682 BA view · diff
git:20260910.af413e82026-09-10 af413e8 10,146 BA view · diff
git:20260910.dfeb6622026-09-10 dfeb662 9,809 BA view · diff
git:20260905.561a6f42026-09-05 561a6f4 7,895 BA view · diff
git:20260905.acec6f92026-09-05 acec6f9 7,718 BA view · diff
git:20260904.a901b362026-09-04 a901b36 7,092 BA view · diff
git:20260903.27a07802026-09-03 27a0780 6,444 BA view · diff
git:20260903.f864b692026-09-03 f864b69 6,461 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (14439 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

netresearch/typo3-extension-upgrade-skill · 12 stars · license a license file GitHub does not identify · pushed 2026-11-05 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_6gf2spdxbmey3wah
GET https://markdownregistry.com/api/v1/resolve?ref=netresearch/typo3-extension-upgrade-skill/typo3-extension-upgrade
GET https://markdownregistry.com/api/v1/blob/f46e8c5966d6a8b0c0dd6c800f334c1b57d4e36c7f8a39705272620b0cd65cd5

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

More from netresearch/typo3-extension-upgrade-skill

AGENTS.md AGENTS.md file
netresearch/typo3-extension-upgrade-skill · AGENTS.md
git:20260930.bb552fb · audit A · 12 stars

Every file in netresearch/typo3-extension-upgrade-skill

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