synthesis-machine-sync skillB
synthesis-machine-sync is agent-read markdown (skill) from synthesisengineering/synthesis-skills: Enroll, sync, hand off, and retire Macs in a personal fleet with git plus the leased coordination board. Use when asked to: machine sync, enroll a Mac, fleet handoff, move work to another Mac, resume on another Mac, fleet doctor, bootstrap a new Mac, retire a Mac, workspace subscriptions..
Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.
What the file says
# Machine Sync Keep a personal fleet of Macs (N=2 first) working as one system. Git remotes plus the leased coordination board are the only transports: every shared write goes through compare-and-swap, every Mac keeps its own machine identity, and no file-replication transport sits in any write path. This skill is the **protocol** — enroll/sync/leave/handoff plus the engines that enforce them. Your personal stores (fleet registry copy, repos manifest, subscriptions) travel in the personal knowledge repo and materialize to each Mac. ## Non-negotiables - Each Mac mints its own stable machine-id once (`~/.synthesis/fleet/machine-id`, mode 0600). The file never moves to another Mac; only the enrollment receipt names it. - The fleet registry (`machines.json`) names exactly one primary. A secondary enrolls against the synced copy, never by founding a second fleet. - Shared board rows identify sessions by `(machine_id, session_uuid, client_ref)`. Liveness is heartbeat age on the board, never a pid from another Mac. - Secrets ride the `synthesis-fleet-secrets` provider, never synced files. No secret value appears in any synced store, board message, or receipt. …
Read the whole file at its exact version.
How to install
mdr add synthesisengineering/synthesis-skills/synthesis-machine-sync@v1.0.0mdr add synthesisengineering/synthesis-skills/synthesis-machine-sync@sha256:a78a8d838e1b191cPin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.
[](https://markdownregistry.com/a/art_og7fds2buvvjp6w3)
1 badge views in 30 days
Versions
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v1.0.0 latest | 2026-09-20 | 589d27d | 7,554 B | B | view · diff |
| v1.0.0 | 2026-09-20 | 1efe765 | 6,982 B | A | view · diff |
| v1.0.0 | 2026-09-20 | 1dffafa | 6,623 B | A | view |
Audit of the latest version
- fail: No curl or wget piped into a shell (matched: curl -fsSL https://raw.githubusercontent.com/synthesisengineering/synthesis-skills/stable/onboard.sh)
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (7554 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 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
synthesisengineering/synthesis-skills · 19 stars · license Apache-2.0 · pushed 2026-09-23 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_og7fds2buvvjp6w3 GET https://markdownregistry.com/api/v1/resolve?ref=synthesisengineering/synthesis-skills/synthesis-machine-sync GET https://markdownregistry.com/api/v1/blob/a78a8d838e1b191ca1573642438ed184f30dff145215d94c672ed52b8abf7cea
Your agent 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.