reversible-system-change SKILL.md skillA
reversible-system-change from wheakerd/axiom is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add wheakerd/axiom/reversible-system-change@git:20261102.2219401Pins git:20261102.2219401 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- wheakerd/axiom
- Path
plugin/skills/reversible-system-change/SKILL.md- Versions recorded
- 7
- Latest version
- git:20261102.2219401, committed Nov 2, 2026
- First version recorded
- Oct 24, 2026
- Size
- 8,155 bytes
- Repository stars
- 4
- License
- MIT
Plan, rehearse, or execute a persistent system change with verified rollback and postconditions for an install, upgrade, deployment, migration, destructive retention action, version promotion, or credential lifecycle step with rollback, data, service, or activation risk. Plans and rehearsals stay read-only; recovery preparation needs bounded write authority. Not for ordinary edits, Git, or status queries.
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
# Reversible System Change Make one authorized persistent change without losing the ability to identify, restore, and verify the prior state. ## Invariants These invariants bind in every phase, including the references that phase loads. Everything else in this skill is a default you may adapt, saying so when you depart. 1. **Separate authority per action.** Recovery-material preparation, isolated restore rehearsal, candidate preparation, active promotion, service restart or reload, data migration, destructive retention, sensitive asset access, rollback, and cleanup are separate actions. Permission for one never implies another, and a newly discovered target, dependency, service, data store, endpoint, or destructive effect requires renewed authority. 2. **Verified rollback before mutation.** Before candidate or active-state mutation, require a rollback point that represents the observed prior state and covers every non-forward-compatible effect. It must be readable by the restore principal with its prerequisites present and must have passed a target-native restore validation or an authorized isolated rehearsal, rechecked immediately before mutation. …
Read the whole file at its exact version.
How to install
mdr add wheakerd/axiom/reversible-system-change@sha256:0b4b921d0b532d32The line at the top of this page pins the label git:20261102.2219401, 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_42iakirzp7ekbtbd)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 7 versions of this file, between Oct 24, 2026 and Nov 2, 2026, about one every day.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261102.2219401 latest | 2026-11-02 | 2219401 | 8,155 B | A | view · diff |
| git:20261030.4e5e768 | 2026-10-30 | 4e5e768 | 8,179 B | A | view · diff |
| git:20261030.c67b1fb | 2026-10-30 | c67b1fb | 7,737 B | A | view · diff |
| git:20261029.0ae2d9a | 2026-10-29 | 0ae2d9a | 8,189 B | A | view · diff |
| git:20261029.56d3d8e | 2026-10-29 | 56d3d8e | 8,040 B | A | view · diff |
| git:20261028.dad3f17 | 2026-10-28 | dad3f17 | 8,162 B | A | view · diff |
| git:20261024.e6bf65f | 2026-10-24 | e6bf65f | 7,975 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 (8155 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
wheakerd/axiom · 4 stars · license MIT · pushed 2026-11-05 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_42iakirzp7ekbtbd GET https://markdownregistry.com/api/v1/resolve?ref=wheakerd/axiom/reversible-system-change GET https://markdownregistry.com/api/v1/blob/0b4b921d0b532d32186e08d6ef99f5f17fc3a3153b52fdbb96f44f6beb95ecfd
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.