upstream-fork-sync SKILL.md skillA
upstream-fork-sync from openhands/extensions is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add openhands/extensions/upstream-fork-sync@git:20260803.071d10ePins git:20260803.071d10e in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- openhands/extensions
- Path
skills/upstream-fork-sync/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260803.071d10e, committed Aug 3, 2026
- Size
- 4,606 bytes
- Repository stars
- 179
- License
- MIT
This skill should be used when the user asks to "keep a fork in sync", "rebase local changes on upstream", "sync my fork nightly", "long-lived fork", or "automate upstream rebases". Guides the user through creating a cron automation that fetches upstream changes, rebases local customizations on top, verifies the software works, and replaces the running version when the rebase is clean.
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
# Upstream Fork Sync Automation
Create a cron automation that keeps a long-lived fork current with its
upstream source. On every run it fetches the latest upstream changes,
rebases the fork's local customizations on top, runs a verification check,
and replaces the deployed version only when the software still works.
This implements the "long-lived fork" pattern: instead of repeatedly
re-deriving a customization, the local changes are preserved across
upstream releases and kept working automatically.
Windows PowerShell equivalents for the setup, packaging, upload, and API-check
shell snippets are in `references/windows.md`.
---
## Prerequisites
### Required secret
Verify that the following secret is set in **OpenHands Settings -> Secrets**:
| Secret name | Token type | Minimum permissions |
|---|---|---|
| `GITHUB_PERSONAL_ACCESS_TOKEN` | Classic PAT | `repo` |
| `GITHUB_PERSONAL_ACCESS_TOKEN` | Fine-grained PAT | Contents: Read and Write, Metadata: Read |
Check with:
```bash
curl -s https://api.github.com/user \
-H "Authorization: Bearer $GITHUB_PERSONAL_ACCESS_TOKEN" \
| python3 -c "import json,sys; d=json.load(sys.stdin); print(d.get('login') or d.get('message'))"
…Read the whole file at its exact version.
How to install
mdr add openhands/extensions/upstream-fork-sync@sha256:c53faa66ce41f084The line at the top of this page pins the label git:20260803.071d10e, 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.
[](https://markdownregistry.com/a/art_23bg26zomoniwavg)
6 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Aug 3, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (4606 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
openhands/extensions · 179 stars · license MIT · pushed 2026-11-08 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_23bg26zomoniwavg GET https://markdownregistry.com/api/v1/resolve?ref=openhands/extensions/upstream-fork-sync GET https://markdownregistry.com/api/v1/blob/c53faa66ce41f0846116b4463313e4a985024eccd6e6ec6d0603a869aee0186d
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.