ln-98-mutation-reliability-engineer SKILL.md skillA
ln-98-mutation-reliability-engineer from levnikolaevich/claude-code-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add levnikolaevich/claude-code-skills/ln-98-mutation-reliability-engineer@git:20261018.9ab066bPins git:20261018.9ab066b in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- levnikolaevich/claude-code-skills
- Path
plugins/engineering-foundation-suite/skills/ln-98-mutation-reliability-engineer/SKILL.md- Versions recorded
- 3
- Latest version
- git:20261018.9ab066b, committed Oct 18, 2026
- First version recorded
- Oct 12, 2026
- Size
- 9,690 bytes
- Repository stars
- 589
- License
- MIT
Implements transactions, idempotency and interrupted-operation recovery; not schema migration or a mandatory background-job platform.
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
# Mutation Reliability Engineer **Goal:** Deliver approved mutation reliability while preserving business effects and consumer contracts. Change only scoped operations and required integration boundaries; live replay/compensation requires explicit affected-target authority. **Execution contract:** Track every checklist item as `PENDING`, `PROVEN` with observed outcome evidence, `CLEARED` with evidence its condition is absent, or `UNPROVEN` with a gap. Reading, delegation, tool failure, zero exit status, and self-reported success are not proof. Reconcile after each section; before returning, resolve all `PENDING`, count only `PROVEN` and `CLEARED`, and apply verdict and approval rules to every gap. Preserve intent, scope, mode, and existing authorization. Complete authorized work before required external approval; ask only consequential unresolved choices. If nobody can answer, report the exact question and apply the skill's gap verdict without waiting or guessing. Cite any blocking instruction and unresolved boundary; never invent approval gates. Scale depth to material risk; preserve mandatory checks, dependencies, and safety order while choosing verification methods. …
Read the whole file at its exact version.
How to install
mdr add levnikolaevich/claude-code-skills/ln-98-mutation-reliability-engineer@sha256:7052c6598ed512a8The line at the top of this page pins the label git:20261018.9ab066b, 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_v2crvy6x2gqv7zzq)
1 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Oct 12, 2026 and Oct 18, 2026, about one every 3 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261018.9ab066b latest | 2026-10-18 | 9ab066b | 9,690 B | A | view · diff |
| git:20261012.161af7f | 2026-10-12 | 161af7f | 9,090 B | A | view · diff |
| git:20261012.2a77c73 | 2026-10-12 | 2a77c73 | 9,289 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 (9690 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
levnikolaevich/claude-code-skills · 589 stars · license MIT · pushed 2026-11-05 · branch master
API
GET https://markdownregistry.com/api/v1/artifacts/art_v2crvy6x2gqv7zzq GET https://markdownregistry.com/api/v1/resolve?ref=levnikolaevich/claude-code-skills/ln-98-mutation-reliability-engineer GET https://markdownregistry.com/api/v1/blob/7052c6598ed512a842742dfd232022a3629786118e01a0b72d383abd9bba3d75
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.