backups SKILL.md skillA
backups from ericrisco/rsc-harness is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add ericrisco/rsc-harness/backups@git:20260729.3ecb845Pins git:20260729.3ecb845 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- ericrisco/rsc-harness
- Path
skills/backups/SKILL.md- Versions recorded
- 2
- Latest version
- git:20260729.3ecb845, committed Jul 29, 2026
- First version recorded
- Jun 2, 2026
- Size
- 11,068 bytes
- Repository stars
- 236
- License
- MIT
Use when designing or auditing a backup-and-restore program that must survive a real disaster: setting defensible RPO/RTO targets, laying out 3-2-1-1-0 copies that are offsite and immutable, wiring point-in-time recovery, and proving restores work on a schedule. NOT tuning Postgres internals or writing the archive_command (that is `postgresdb`).
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
# Backups & disaster recovery ## Start here One question decides whether you have backups or a hope: **if you restored right now, would it work — and how do you know?** If the answer is "we have a nightly job and it hasn't errored," you do not have backups. You have a job. A backup you have never restored is an untested assertion about the future. This skill exists to turn that assertion into evidence: pick the numbers, lay out the copies so ransomware can't reach them, and run a *real* restore on a schedule so the answer becomes "yes, we restored it last Tuesday in 41 minutes." This is the cross-engine **strategy + verification** skill. Engine-specific SQL knobs (the actual `archive_command`, VACUUM, schema migrations) belong to `../postgresdb/SKILL.md`. Encryption-key management as a general security control belongs to `../secure-coding/SKILL.md`. ## 1. Decide RPO and RTO first — numbers, not adjectives Everything downstream derives from two numbers. Never start from "what does the tool do." - **RPO** = maximum acceptable *data loss*, the gap between the disaster and your last good copy. It sets **backup frequency**. "RPO 1 hour" means a copy at least hourly. …
Read the whole file at its exact version.
How to install
mdr add ericrisco/rsc-harness/backups@sha256:419e8313fe7021e4The line at the top of this page pins the label git:20260729.3ecb845, 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_qcjsc56b2xyl646e)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Jun 2, 2026 and Jul 29, 2026, about one every 57 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260729.3ecb845 latest | 2026-07-29 | 3ecb845 | 11,068 B | A | view · diff |
| git:20260602.a440d62 | 2026-06-02 | a440d62 | 11,933 B | A | view |
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 (11068 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
ericrisco/rsc-harness · 236 stars · license MIT · pushed 2026-10-21 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_qcjsc56b2xyl646e GET https://markdownregistry.com/api/v1/resolve?ref=ericrisco/rsc-harness/backups GET https://markdownregistry.com/api/v1/blob/419e8313fe7021e40b12d10286a32bd2aeb7dd069faa7b6eba1fd3ed454102f5
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.